Motorola CP150TM User Manual

CP150™/CP200

™

Commercial Series

Two-Way Radio Detailed Service Manual

Product Safety and RF Exposure Compliance

!

Before using this product, read the operating instructions for safe usage contained in the Product Safety and RF Exposure booklet enclosed with your radio.

C a u t i o n

ATTENTION!

This radio is restricted to occupational use only to satisfy FCC RF energy exposure requirements.

Before using this product, read the RF energy awareness information and operating instructions in the Product Safety and RF Exposure booklet enclosed with your radio (Motorola Publication part numbe r 68P81095C98) to ensure compliance with RF energy exposure limits.

For a list of Motorola-approved antennas, batteries, and other accessories, visit the following web site which lists approved accessories: http://www.motorola.com/cgiss/index.shtml.

Computer Software Copyrights

The Motorola products described in this manu al may include copyrigh ted Motorola compu ter programs stored in semiconductor memories or other media. Laws in the United States and other countries preserve for Motorola certain exclusive rights for co pyrighted computer programs, including, but not limited to, the exclusive right to copy or reproduce in any form the copyrighted computer program. Accordingly, any copyrighted Motorola computer programs contained in the Motorola products described in this manual may not be copied, reproduced, modified, reverse-engineered, or distributed in any manner without the express written permission of Motorola. Furthermore, the purchase of Motorola products shall not be deemed to grant either directly or by implication, estoppel, or otherwise, any license under the copyrights, patents or patent applications of Motorola, except for the normal non-exclusive license to use that arises by opera tion of law in the sale of a product.

Document Copyrights

No duplication or distribution of this document or any portion thereof shall take place without the express written permission of Motorola. No part of this manual may be reproduced, distributed, or transmitted in any form or by any means, electronic or mechanical, for any purpose without the express written permission of Motorola.

Disclaimer

The information in this document is carefully examined, and is believed to be entirely reliable. However, no responsibility is assumed for inaccuracies. Furthermore, Motorola reserves the right to make changes to any products herein to improve readability, function, or design. Motorola does not assume any liability arising out of the applications or use of any product or circuit described herein; nor does it cover any license under its patent rights nor the rights of others.

Chapter 2 DC Power Distribution

2.1 DC Regulation and Distribution

A block diagram of the DC power distribution throughout the radio is shown in Figure 2-1.

Audio

Power

Amplifier

Accessories

20 pin Connector

Keypad/Option Board

7.5V

Battery

5V

Vdda

Vddd

LCD

Driver

RF AMP, IF AMP,

ASFIC_CMP

RX/TX Buffers

IFIC

FRACTN VCOBIC

UNSWB+

Fuse

3.3V

Reg.

LI Ion

PA, Driver

PCIC(ALC)

MECH.

SWB+

Low Battery

Detect

Control

On/Off Switch

SWB+

Antenna

Switch

Vdda

Regulator

Vddd

Regulator

Tx

Led

MCU, ROM

and EEPROM

Regulator

Figure 2-1. DC Power Distribution Block Diagram

Battery voltage enters at connector J301 and is routed through fuse F301 to become USWB+. VR301 protects against ESD, and D301 provides reverse polarity protection. This voltage is routed to:

• FET switch Q170 in the TX power control circuit (turned on during transmit)

• TX power amplifier module U110 (via R150)

• input pins of regulators U310, U320 and U330

• FET switch Q493 (turned on whenever the radio is on)

• on-off switch S444 (part of on-off-volume control) to become SWB+

2-2 DC Power Distribution: DC Regulation and Distribution

When the radio is turned on, SWB+ is present and is applied to:

• transistor switch Q494 (pins 1 and 6) which turns on Q4 93

• RX audio power amplifier U490

• voltage divider R420/R421 and port PE0, a microprocessor A/D input which measures battery voltage and radio on/off status

The output of FET switch Q493 is applied to the control pins of regulators U310, U320 and U330, turning them on. The following regulators are used:

Table 2-1. Voltage Regulators

Reference No. Description Type

U310 5 V Regulator TK71750S

U320 Digital 3.3 V Regulator LP2986

U330 3 V Regulator TK71730S

The 5 V source is applied to:

• RX back end circuitry

• synthesizer super filter input and charge pump supply

• RED/GRN LEDs

• RX audio buffer U510

• portions of ASFIC U451

The 5 V source is also applied to FET switches Q311 and Q312. Q311 is turned on by Q313 when RX_ENA (from U401 pin 49) is high, and supplies the "5R" source to the RF front end stages Q21Q22, and the VCO RX injection buffer Q280. Q312 is turned on by Q313 when TX_ENA (from U40 1 pin 50) is high, and supplies the "5T" source to the first transmitter stage Q100.

The digital 3.3 volt source from U320 (D_3.3 V) is applied to:

• microprocessor U401

• EEPROM U402

• flash ROM U404

The 3 V regulated source from U330 is applied to:

• synthesizer IC U201

• VCO/buffer IC U251

• portions of ASFIC U451

• microphone bias circuitry

While the radio is turned on, port PH3 (U401 pin 44) is he ld high. When the radio is turn ed off, SWB+ is removed and port PE0 (U401 pin 67) goes low, initiating a power-down routine. Port PH3 (pin 44) remains high, keeping the voltage regulators on via Q493 and Q494, until the operating state of the radio has been stored in EEPROM and other turn-off data functions have been completed. PH3 then goes low, turning off Q494 and Q493, and all regulated voltages are removed.

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Chapter 3 Controller Theory of Operation

3.1 Controller

The controller provides the following functions:

• interface with controls and indicators

• serial bus control of major radio circuit blocks

• encoding and/or decoding of selective signaling formats such as PL, DPL , MDC1200 a nd QuikCall II

• interface to CPS programming via the microphone connector

• storage of customer-specific information such as channel frequencies, scan lists, and signaling codes

• storage of factory tuning parame ters such as tra nsmitter powe r and de viation, r eceiver squelch sensitivity, and audio level adjustments

• power-up, power-down and reset routines

Figure 7-3 (VHF) shows the interconnection between the controller and the various other radio

blocks. Figure 7-9 show the connections between the following circuit areas which comprise the controller block:

• microprocessor circuitry

• audio circuitry

• DC regulation circuitry (refer to Chapter 2, DC Regulations and Distribution.)

• rotary and pushbutton controls and switches

• option board interface

The majority of the circuitry described below is contained in the (VHF) Mi croprocessor Circuitry schematic diagrams (Figure 7-10). Portions are also found in the Audio and DC Regulation schematics (Figures 7-11 and 7-12).

3.1.1 Microprocessor Circuitry

The microprocessor circuitry includes microprocessor (U401) and associated EEPROM, S-RAM (not used in PR400 models), and Flash ROM memories. The following memory IC's are used:

Table 3-1. Radio Memory Requirements

Reference No. Description Type Size

U402 Serial EEPROM AT25128 16K x 8

U403 Static RAM (not used)

U404 Flash ROM AT49LV001N_70 V 128K x 8

3-2 Controller Theory of Operation: Controller

3.1.1.1 Memory Usage

Radio operation is controlled by software that is stored in external Flash ROM memory (U404). Radio parameters and customer specific information is stored in external EEPROM (U402). The operating status of the radio is maintained in RAM located within th e microprocessor . When the radio is turned off, the operating status of the radio is written to EEPROM before operating voltage is removed from the micropro cessor. See section “3.1.1.7 Microprocessor Power-Up, Power-Down and

Reset Routine” on page 3-3 for a discussion of the power-down routine.

Parallel communication with U403 and U404 is via:

• address lines A(0)-A(16), from U401 port F ADDR0-ADDR13 and port G XA14-XA16

• data lines D(0)-D(7), from U401 port C DATA0-DATA7

• chip-select for U403, from PH6 (U401 pin 41)

• chip-enable for U404, from PH7 (U401 pin 38)

• output enable for U404, from PA7 (U401 pin 86)

• write-enable for both U403 and U404, from PG7_R/W (U401 pin 4)

Serial communication with U402 is via:

• the SPI bus (see section “3.1.1.3 Serial Bus Control of Circuit Blocks” on page 3-2)

• chip-select for U402, from PD6 (U401 pin 3)

3.1.1.2 Control and Indicator Interface

Ports PI3 and PI4 are outputs which control the top-mounted LED indicator. When PI3 is high, the indicator is red. When PI4 is high, the indicator is green. When both are high, the indicator is amber. When both are low, the indicator is off.

Pressing the side-mounted PTT button (S441) provides a lo w to port PJ0 (U401 pin 71), which indicates PTT is asserted. Side-mounted option buttons 1 and 2 (S442 and S443) are connected to Ports PJ6 (pin 77) and PJ7 (pin 78), respectively.

3.1.1.3 Serial Bus Control of Circuit Blocks

The microprocessor communicates with other circuit blocks via a SPI (serial peripheral interface) bus using ports PD2 (data into uP), PD3 (data out of uP) and PD4 (clock). The signal names and microprocessor ports are defined in Table 3-2.

Table 3-2. SPI Bus Signal Definitions

Signal Name Microprocessor Port Microprocessor Pin

SPI-DATA_IN PD2-MISO U401 Pin 99

SPI_DATA_OUT PD3-MOSI U401 pin 100

SPI_CLK PD4-SCK U401 pin 1

These signals are routed to:

• the audio filter IC (U451) to control internal functions such as gain change betwee n 25 kHz and

12.5 kHz channels, transmit or receive mode, volume adjustment, etc.

• the synthesizer IC U201 to load receive and transmit channel frequencies

• option board connector J460-1 for internal option configuration and control

• serial EEPROM U402 (both SPI_DATA_IN and SPI_DATA_OUT are used).

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Controller Theory of Operation: Controller 3-3

In order for each circuit block to respond only to the data intended for it, each peripheral has its o wn chip select (or chip enable) line. The device will only respond to data when its enable line is pulled low by one of the microprocessor ports, as follows:

• port PD5 (U401 pin 2) for the audio filter IC

• port PH0 (U401 pin 47) for the synthesizer IC

• port PD6 (U401 pin 3) for the serial EEPROM.

3.1.1.4 Interface to RSS Programming

The radio can be programmed, or the programmed information can be read, using a computer with CPS (Customer Programming Software) connected to the radio via a RIB (radio interface box) or with the RIB-less cable. Connection to the radio is made via the microphone connector (part of accessory connector J471). The SCI line connects the programming contact (J471 pin 6) to ports PD0_RXD (data into uP, pin 97) and PD1_TXD (data out of uP, pin 98). Transistor Q410 isolates the input and output functions by allowing PD1 to pull the line low , but does not af fect incoming data from being read by port PD0. This isolation allows high-speed 2-wire pr ogramm ing via TP401 and TP402 for factory programming and tuning.

3.1.1.5 S t orage of Customer-Specific Information

Information that has been programmed using CPS, such as channel frequencies or selective signaling codes, are stored in the external EEPROM, where it is retained permanently (unless reprogrammed) without needing DC power applied to the microprocessor.

3.1.1.6 Sensing of Externally-Connected Accessories

Port PJ1 is used to detect the presence of externally connecte d accessor ies. Port PJ1 (U401 pin 72) is normally low, unless accessories (lapel speaker microphone, lightweight headset, etc.) are used with the radio. This port is used to detect an accessory PTT or auto sensing of a VOX accessory.

If VOX is programmed into the radio channe l codeplug information, and PJ1 is high during power-u p, the radio will activate VOX operation. If a low is present at port PJ1 during power-up, the radio will use this port as an external PTT indicator.

3.1.1.7 Microprocessor Power-Up, Power-Down and Reset Routine

On power-up, the microprocessor is held in reset until the digital 3.3 V regulator (U320 pin 5) provides a stable supply voltage. Once the dig ital supply reaches steady st ate and releases the re set line (U320 pin 7), the microprocessor begins to start up. The ASFIC_CMP (U451) has already started running and is providing the startup clock to the microprocessor. After reset release by all circuits, the software within the microprocessor begins executing port assignments, RAM checking, and initialization. A fixed delay of 100 ms is added to allow the audio circuitry to settle. Next, an alert beep is generated and the steady state software begins to execute (buttons are read, radio circuits are controlled).

When the radio is turned off, SWB+ is removed and port PE0 (U401 pin 67) goes low, initiating a power-down routine. Port PH3 (pin 44) remains high, keeping the voltage regulators on via Q493 and Q494, until the operating state of the radio has been stored in EEPROM. PH3 then goes low, and all regulated voltages are removed.

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3-4 Controller Theory of Operation: Controller

The microprocessor reset line (pin 94) can be controlled directly by the digital 3.3 V regulator (U320 pin 7), the microphone jack (part of accessory connector J471) via Q472 and Q471, and the microprocessor itself. U320 pulls the reset line low if the digital 3.3 V source loses regulation. This prevents possible MOS latch-up or overwriting of registers in the microprocessor because the reset line is higher in voltage than the microprocessor VDD ports (U401 pins 12, 39, 59, 88). The microprocessor can drive the reset line low if it detects a fault condition such as an expired watchdog timer, software attempting to execute an infinite loop, unplanned hardware inputs, static discharge, etc. Finally, the Q471 can pull the reset line low during use of the programming cable and CPS by the application of a sufficiently negative voltage to the microphone connector tip contact (J471 pin 4), however this reset method is not utilized.

3.1.1.8 Boot Mode Control

When power-up reset occurs, the microprocessor will boot into either normal or flash mode depending on the logic level of ports MODA (U401 pin 58) a nd MODB (pin 57). T he Flash Adapter is a programming accessory which provides negative 9 volts dc via a 1K resistor to microphone connector J471 pin 4. This turns on Q471 and Q472 via D471 and VR472, pulling MODA and MODB low and allowing booting in the flash mode by cycling power to reset the radio. Software upgrades can then performed by loading the new software code into Flash ROM U404.

3.1.1.9 Microprocessor 7.3975 MHz Clock

The 7.3975 MHz clock signal (uP_CLK) is provided from the ASFIC_CMP (U451 pin 28). Upon startup the 16.8MHz crystal provides the signal to the ASFIC_CMP, which sends out the uP_CLK at

3.8MHz until a steady-state condition is reached and the clock is increased to 7.3975MHz for the microprocessor.

3.1.1.10 Battery Gauge

Various battery types are available having different capacities. The different battery types contain internal resistors connected from the BATT_CHARGE contact to ground (which is routed to the microprocessor as BATT_DETECT). A voltage divider is formed with R255 pro ducing a different DC voltage for each battery type, which is read by microprocessor port PE2 (pin 65). This allows the software to recognize the battery chemistry being used and adjust the battery gauge fo r best accuracy.

3.1.2 Audio Circuitry

3.1.2.1 Transmit and Receive Low-Level Audio Circuitry

The majority of RX and TX audio processing is performed by U451, the Audio Filter IC (ASFIC_CMP), which provides the following functions:

• Tone PL/Digital PL encode and decode filtering

• Tone PL/Digital PL rejection filter in RX audio path

• TX pre-emphasis amplifier

• TX audio modulation limiter

• Post-limiter (splatter) filter

• TX deviation adjust (digitally-controlled attenuators)

• Programmable microphone gain attenuator

• RX audio volume control (digitally controlled attenuator)

• Carrier squelch adjustment (digitally controlled attenuator)

• Microprocessor output port expansion

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Controller Theory of Operation: Controller 3-5

• 2.5 volt dc reference source

• Microprocessor clock generation (from the 16.8 MHz reference oscillator input)

The parameters of U451 that are programmable are selected by the microprocessor via the CLOCK (U451 pin 21), DATA (U451 pin 22) and chip enable (U451 pin 20) lines.

RX audio buffer U510 amplifies the audio level from the DEMOD output of the IFIC before being applied to the audio filter IC input (DISC, U451 p in 2). The buffer is DC coupled to avoid corruption of low-frequency data waveforms such as DPL. Because such waveforms are polarity sensitive, this buffer is configured as a single-stage inverting amplifier (U510-1 only) for VHF models where highside first injection is used, or is configured as a two-stage non-inver ting amplifie r (U510-1 and -2 ) for UHF models using low-side first injection. The gain of the buffer is 1.5 times or 3.5 dB.

U480 and associated components are not used. Stage U480-1 is bypassed by jumper R487. Volume adjustment is performed by a digital attenuator within U451. The volume control (10KO, part

of S444) is connected to D_3.3 V and ground via R506 and R507. When the volume control is rotated, it varies the dc volt age applie d to micr oprocessor A/D input por t PE1 (U4 01 pin 66) between approximately 0 volts dc at minimum volume to 3.3 volts dc at maximum volume. Depending on this voltage, the appropriate setting of the digital volume attenuator is selected. This technique is less susceptible to noise than a conventional analog volume control.

3.1.2.2 Audio Power Amplifier

The audio power amplifier IC U490 amplifies receiver audio from U451 pin 41 to a level sufficient to drive a loudspeaker. U490 is a bridge amplifier delivering 3.46 volts rms between pins 5 and 8 without distortion, which is sufficient to develop 500 milliwatts of audio power into the internal 24 ohm speaker or an external 24 ohm load. The audio power amplifier is muted whenever speaker audio is not required to reduce current drain. The audio amp is muted when U451 pin 14 is low. When U451 pin 14 is high, U490 pin 1 is pulled low by Q490, enabling the audio amplifier.

Because the power amplifier is a bridge-type, neither speaker terminal is gro unded. Care should be taken that any test equipment used to measure the speaker audio voltage does not ground either speaker output terminal, otherwise damage to the audio power amplifier IC may result. When a 24ohm load resistor is used it should be connected between the tip and the sleeve of accessory jack J471 (3.5mm port), never to ground. External SPKR plug insertion mechanically disconnects the internal speaker. Volta ge measurements using test equipment that is not isolated from ground may be made from one side of the speaker or load r esistor (either the tip or the sle eve of J471) to chassis ground, in which case the voltage indicated will be one half of the voltage applied to the speaker or load resistor . The Motorola RLN44 60 Port able Test Set and AAPMKN4004 Programming T est Cable provide the proper interface between the radio's ungrounded audio output and ground-referenced test equipment.

3.1.2.3 Internal Microphone Audio Voice Path

Microphone audio from internal microphone is routed from J470-1 via C475, L471, and C470 to the ASFIC_CMP mic audio input (MICINT, U451 pin 46). During transmit, Q470 is turned on by a low at U451 pin 35, providing dc bias for the internal MIC via R478. External MIC plug insertion mechanically disconnects the internal microphone. External MIC audio is coupled through L4 71 and C470 to the mic audio input. An input level of 10 mV at J471 pin 4 produces 200 mV at the output of U451 pin 40, which corresponds to 60% deviation.

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3-6 Controller Theory of Operation: Controller

3.1.2.4 PTT Circuits

The internal side-mounted PTT switch (S441) is sensed directly by microprocessor port PJ0 (U401 pin 71). External mic PTT is sensed by measuring the current drawn through the accessory connector (J471-4) by the mic cartridge (which is in series with the accessory PTT switch). This current is drawn through the base (pin 5) and emitter (pin 4) of a transistor in Q470, causing its collector (pin 3) to supply a logic-high to microprocessor port PJ1 (pin 72).

3.1.2.5 VOX Operation

VOX audio accessories do not have a PTT switch. Instead, the mic cartridge is wired directly from J471-4 to ground. If the radio has been programmed for VOX operation an d the VOX accessory is plugged in prior to turning the radio on, the current drawn by the cartridge will turn on Q470 (pins 34-5) and a logic high will be seen at port PJ1 at turn-on. The microprocessor then assumes VOX operation, with PTT controlled by the presence of audio at the mic cartridge. A dc voltage proportional to the audio level at the input of the ASFIC_CMP (U451 pin 46) is fed to a n A/D in put of microprocessor U401 (pin 62). During VOX operation, PT T is activate d whe n the dc leve l exceeds a preset threshold.

3.1.2.6 Battery Charging Through Microphone Jack

A wall-type charging power supply may be connected to the 2.5 mm microphone jack (p art of accessory connector J451). The voltage present at the tip contact (pin 4) is app lied to the center charging contact of the battery via diode D470. Another diode, internal to the battery, applies this voltage to the (+) battery terminal. Only the recommended charger and battery type should be charged in this manner.

Different battery types contain internal resistors connected from the BATT_CHARGE contact to ground, which is routed to the microprocessor as BATT_DETECT. A voltage divider is formed with R255 producing a DC voltage which is read by microprocessor port PE2 (pin 65). This allows the software to recognize the battery chemistry being used and adjust the battery gauge fo r best accuracy. The value of R255 is chosen so that the voltage at the BATT_CHARGE node (cathode of D470) is never low enough to turn on the EXT_MIC_PTT sense transistor (part of Q470).

3.1.2.7 Programming and Flashing Through Microphone Jack

The ring contact on the 2.5 mm microphone jack is used for reading, pr ogramming or re-flashing the radio using CPS. This contact (J471 pin 6) is routed to port s PD0_RXD (data into uP, pin 97) and PD1_TXD (data out of uP, pin 98). Transistor Q410 isolates the input and output functions by allowing PD1 to pull the line low, but does not affect incoming data from being read by port PD0.

To re-flash the radio (ov erw rit e th e software in the F lash ROM wi th ne w so ftware), the ra dio mu st power up in the boot mode. This is accomplished by using a flash adapter acce ssory, which provides SCI communication with the programming ring contact (J471 pin 6) and also allows a negative voltage (negative 9 volts dc via a 1K resistor) to be applied to the tip contact (J471 pin 4). This voltage is sufficient to turn on the base-emitter junction (pins 1 and 2) of Q472 via L471, D471, VR472 and R471. Pin 6 of Q472 goes high, turning on Q471 (pins 3 and 4) and pulling the BOOT_ENA line (ports MODA and MODB of the microprocessor) low. Cycling power generates a reset which causes the radio to boot in the flash mode.

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Chapter 4 136-162 MHz VHF Theory Of Operation

4.1 Introduction

This chapter provides a detailed theory of operation for the radio components. Schematic diagrams for the circuits described in the following paragraphs are located in Chapter 7 of this manual.

4.2 VHF Receiver

The VHF receiver covers the range of 136-162 MHz and provides switchable IF bandwidth for use with 12.5 kHz or 20/25 kHz channel spacing systems. The receiver is divided into two major blocks as shown in Figure 4-1.

•Front End

• Back End

Preselector

RX from

Antenna Switch

from Synthesizer

4.2.1 Receiver Front-End

Incoming RF signals from the antenna are first routed throug h the harmonic filter and ante nna switch, part of the transmitter circuitry, before being applied to the receiver front end. The receiver front end consists of a preselector filter, RF amplifier, an interstage filter, and a double-balanced first mixer.

The preselector filter is a fixed-tuned 4-pole design using discrete elements (L1-L4 and C1-C9) in a series/shunt resonator configuration. It has a 3 dB bandwidth of 43 MHz, an in sertion loss of 2 dB and image attenuation of 37 dB at 226 MHz, with increasing attenuation at higher frequencies. Diode CR1 protects the RF amplifier by limiting excessive RF levels.

The output of the filter is matched to the base of RF amplifier Q21, which provides 18 dB of gain and a noise figure of 2 dB. Operating voltage is obtained from the 5R source, which is turned off during transmit to reduce dissipation in Q21. Current mirror Q22 maintains the operating current of Q21

RF

Filter

First LO

Recovered Audio

Figure 4-1. VHF Receiver Block Diagram

Amp

RSSI

Interstage

Filter

Inj Filter

Ceramic

Resonator

1st Mixer

Demodulator

Crystal

Filter

6G

Switching

6E

IF

Amp

BW_SEL

Cer Fltr

4E

4-2 136-162 MHz VHF Theory Of Operation: VHF Receiver

constant at 6.2 mA regardless of device and temperature variations, for optimum dynamic range and noise figure.

The output of the RF amplifier is applied to the interstage filter, a fixed-tuned 3-pole series-coupled resonator design having a 3 dB bandwidth of 54 MHz and insertion loss of 1.8 dB. This filter has an image rejection of 40 dB at 226 MHz, with increasing attenuation at higher frequencies.

The output of the interstage filter is connected to the passive double-balanced mixer consisting of components T41, T42, and CR41. This mixer has a conversion loss of 7 dB. High-side injection from the frequency synthesizer is filtered by L40-L41 and C40-C44 to remove second harmonic energy that may degrade half-IF spurious rejection performance. The injection filter has a 3 dB bandwidth of 52 MHz and an insertion loss of 1.5 dB. The filtered injection signal is applied to T42 at a level of +6 dBm.

The mixer output is applied to a diplexer network (L51-L52, C51, R51) which ma tches the 44 .85 MHz IF signal to crystal filter FL51, and terminates the mixer into 50Ω at all other frequencies

4.2.2 Receiver Back-End

The receiver back end is a dual conversion design. High IF selectivity is provided by FL51, a 4-pole fundamental mode 44.85 MHz crystal filter with a minimum 3 dB bandwidth of + 6.7 kHz, a maximum 20 dB bandwidth of ±12.5 kHz, and a maximum insertion loss of 3.5 dB. The output is matched to IF amplifier stage Q51 by L53 and C93. Q5 1 provides 16 dB of gain and a noise figure of 1.8 dB. The dc operating current is 1 mA. The output of Q51 is applied to the input of the receiver IFIC U51. Diode CR51 limits the maximum RF level applied to the IFIC.

The IFIC is a low-voltage monolithic FM IF system incorporating a mixer/oscillator, two limiting IF amplifiers, quadrature detector, logarithmic received signal strength indicator (RSSI), voltage regulator and audio and RSSI op amps. The second LO frequency, 44.395 MHz, is determined by Y51. The second mixer converts the 44.85 MHz high IF frequency to 455 kHz.

Additional IF selectivity is provided by two ceramic filters, FL52 (between the second mixer and IF amp) and FL53 or FL54 (between the IF amp and the limiter input). The wider filter FL53 is used for 20/25 kHz channel spacing, and the narrower filter FL54 is used for 12.5 kHz channels. When the BW_SEL line is high, the two upper diodes in packages D51 and D52 are forward biased, selecting FL53 for 20/25 kHz channels. When the BW_SEL line is low, the two lower diodes in packages D51 and D52 are forward biased, selecting FL54 for 12.5 kHz channels.

FL52 FL53 FL54

Number of Elements: 4 6 6 Insertion Loss: 4 dB 4 dB 4 dB 6 dB Bandwidth: 15 kHz 15 kHz 9 kHz 50 dB Bandwidth: 30 kHz 30 kHz 22 kHz Stopband Rejection: 27 dB 47 dB 47 dB

Ceramic resonator Y70 provides phase vs. frequency characteristic required by the quadrature detector, with 90 degree phase shift occurring at 455 kHz. Buffer Q70 provides a lower driving impedance from the limiter to the resonator, improving the IF waveform and lowering the distortion of the recovered audio signal. The recovered audio level at the DEMOD output is 120 mV rms (25 kHz channel, 3 kHz deviation) or 60 mV rms (12.5 kHz chan n el, 1. 5 kHz devia tio n) . An ad dit ion a l RSSI output provides a DC voltage level that is proportio nal to RF signal level. This volt age is measured by an A/D converter contained in the microprocessor (PE4_AN4, U401 pin 63).

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136-162 MHz VHF Theory Of Operation: VHF Transmitter 4-3

4.3 VHF Tr ansmitter

The VHF transmitter covers the range of 136-162 MH z. Depen ding on mo del, the output po wer of the transmitter is either switchable on a per-channel basis between high power (5 watts) and low power (1 watt), or is factory preset to 2 watts. The transmitter is divided into four major blocks as shown in

Figure 4-2.

• Power Amplifier

• Harmonic Filter

• Antenna Matching Network

• Power Control

USWB+

TX_INJ

(From VCO)

TX_ENA

PWR_SET

5T

Q100

Power Control

VGG

Power Amplifier Module U110

Figure 4-2. VHF Transmitter Block Diagram

4.3.1 Transmit Power Amplifier

The transmitter power amplifier has three stages of amplification. The first stage, Q100, operates in Class AB from the 5T source. It provides 13 dB of gain and an output of 20 mW. The current drain is typically 25mA. Components C105-C107 and L103 match the output of Q100 to the 50Ω input of the module U110.

U110 is a two stage Silicon MOS FET power amplifier module. Drain voltage is obtained from UNSW B+ after being routed through current-sense resistor R150 in the power control circuit. The output power of the module is controlled by varying the DC gate bias on U110 pin 2 (VGG).

4.3.2 Antenna Switch

VDD

RX_IN

(To Receiver)

Antenna

Switch

Harmonic Filter

Antenna

Matching

Network

J140 Antenna Jack

Antenna

The antenna switch consists of two pin diodes, D120 and D121. In the rece ive mode, both diodes are off. Signals applied at the antenna or at jack J140 are routed, via the harmonic filter, through network C122-C124 and L121, to the receiver input. In the transmit mode, Q170 is on and TXB+ is present, forward-biasing both diodes into conduction. The diode current is 50 mA, set by R120-R122. The transmitter RF from U110 is routed through D120, and via the harmonic filter to the antenna jack. D121 conducts, shunting RF power and preventing it from reaching the receiver. L121 is selected to appear as a 1/4 wave at VHF, so that the low impedance of D121 appears as a high impedance at the junction of D120 and the harmonic filter input. This provides a high series impedance and low shunt impedance divider between the power amplifier output and receiver input.

4.3.3 Harmonic Filter

The harmonic filter consists of components C130- C136 and L130-L132. The harmonic filter is a seven-pole elliptical low-pass configuration, optimized for low insertion loss, with a 3 dB frequency of approximately 180 MHz and typically less than 0.8 dB insertion loss in the passband.

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4-4 136-162 MHz VHF Theory Of Operation: VHF Frequency Generation Circuitry

4.3.4 Antenna Matching Network

The harmonic filter presents a 50 Ω impedance to antenna jack J140. A matching network, made up of C140-C141 and L140, is used to match the antenna impedance to the harmonic filter. This optimizes the performance of the transmitter and receiver into the impedance presented by the antenna, significantly improving the antenna's efficiency.

4.3.5 Power Control

The power control circuit is a dc-coupled amplifier whose output is the dc gate bias voltage (VGG) applied to the two stages of the RF power amplifier U110.

The output power of the transmitter is adjusted by varying the setting of the power-set DAC cont ained in the ASFICcmp IC (DACG, U451 pin 6). This PWR_SET voltage is applied to U150 pin 3.

Stage U150-2 compares the voltage drop across current sense resistor R150 to the voltage drop across resistor R151 caused by current flow through Q150, and adjusts its output (pin 7) to maintain equal voltages at pins 5 and 6. Thus the current flow through Q150, and hence its emitter voltage, is proportional to the current drawn by stage U110, which is in turn proportional to the transmitter output power. The emitter voltage of Q150 is applied to U150 pin 2, where it is compared to the power set voltage PWR_SET at pin 3.

The output of U150 pin 1 is divided by R110 and R111 and applied as a gate voltage to the power amplifier U110. By varying this gate voltage as needed to keep the voltages at U150 pins 2 and 3 equal, power is maintained at the desired setting. Excessive final current, for example due to antenna mismatch, causes a lowering of the voltage at U150 pin 6, an increased voltage at pin 2, and a lowering of the voltage at pin 1 and of the gate voltage VGG. This prevents damage to the final stage due to excessive current.

4.4 VHF Frequency Generation Circuitry

The frequency generation system, shown in Figure 4-3, is composed of two circuit blocks, the Fractional-N synthesizer IC U201, the VCO/Buffer IC U251, and associated circuitry. Figure 4-4 shows the peripheral interconnect and support circuitry used in the synthesizer block, and Figure 4-5 details the internal circuitry of the VCOBIC and its interconnections to the surrounding components. Refer to the schematic to identify reference designators.

The Fractional-N synthesizer is powered by regulated 5 V and 3 V provided by U310 and U330 respectively. 5 V is applied to U201 pins 13 and 30, and 3 V is applied to pins 5, 20, 34 and 36. The synthesizer in turn generates a super-filtered 4.5 V supply (VSF, from pin 28) to power U251. In addition to the VCO, the synthesizer also interfaces with the logic and ASFICcmp circuits. Programming for the synthesizer is accomplished through the microprocessor SPI_DATA_OUT, SPI_CLK, and SYNTH_CS (chip select) lines (U409 pins 100, 1 and 47 respectively). A logic high (3 V) from U201 pin 4 indicates to the microprocessor that the synthesizer is locked.

June, 2005 6880309N62-C

136-162 MHz VHF Theory Of Operation: VHF Frequency Generation Circuitry 4-5

Transmit modulation from the ASFICcmp (U451 pin 40) is applied to U201 pin 10 (MOD_IN). An electronic attenuator in the ASFICcmp adjusts overall transmitter deviation by varying the audio level applied to the synthesizer IC. Internally the audio is digitized by the Fractional-N synthesizer and applied to the loop divider to provide the low-port modulation. The audio is also routed through an internal attenuator for the purpose of balancing the low port and high port modulation and reducing the deviation by 6 dB for 12.5 kHz channels, and is available at U201 pin 41 (VCO_MOD). This audio signal is routed to the VCO's modulator.

Voltage

Multiplier

VCP

Vmult1

Vmult2

Synthesizer

Aux3

U201

16.8 MHz Ref. Osc.

MOD Out

Modulating

Signal

Figure 4-3. VHF Frequency Generation Unit Block Diagram

4.4.1 Fractional-N Synthesizer

The Fractional-N synthesizer, shown in Figure 4-4, uses a 16.8 MHz crystal (Y201) to provide the reference frequency for the system. External components C201-C203, R202 and D201 are also part of the temperature-compensated oscillator circuit. The dc voltage applied to varactor D201 from U201 pin 25 is determined by a temperature-compensation algorithm within U201, and is specific to each crystal Y201, based on a unique code assigned to the crystal that identifies its temperature characteristics. Stability is better than 2.5 ppm over temperatures of -30 to 60 °C. Softwareprogrammable electronic frequency adjustment is achieved by an internal DAC which provides a frequency adjustment voltage from U201 pin 25 to varact or D201.

The synthesizer IC U201 further divides the 16.8 MHz signal to 2.1 MHz, 2.225 MHz, or 2.4 MHz for use as reference frequencies. It also provides a buffered 16.8 MHz signal at U201 pin 19 for use by the ASFICcmp.

To achieve fast locking of the synthesizer, an internal adapt charge pump provides higher current at U201 pin 45 to quickly force the synthesizer within lock range. The required frequency is then locked by the normal mode charge pump at pin 43. A lo op filter (C243 -C245 and R243 -R245) removes noise and spurs from the steering voltage applied to the VCO varactors, with additional filtering located in the VCO circuit.

Both the normal and adapt charge pumps get their supply from the capa citive volt age multiplie r made up of C221-C224 and D220-D221. Two 3 V square waves from U201 pins 14-15 provide the drive signals for the voltage multiplier, which generates 12.1 V at U201 pin 47. This voltage is filtered by C225-C228.

Loop

Filter

TRB

Rx VCO

Circuit

Tx VCO

Circuit

VCOBIC

U251

Rx Out

Tx Out

Buffer

Q280

To Mixer

To PA Driver

6880309N62-C June, 2005

4-6 136-162 MHz VHF Theory Of Operation: VHF Frequency Generation Circuitry

One of the auxiliary outputs of the synthesizer IC (AUX3, U201 pin 2) provides the TRB signal which determines the operating mode of the VCO, either receive or transmit.

13,30

10

23

25

32

47

7

8

9

DATA

CLK

CEX

MODIN

V

, 5V

CC

, 3V

V

DD

XTAL1

WARP

PREIN

VCP

VMULT2

U201 Low Voltage Fractional-N Synthesizer

VMULT1

14

15

Prescaler In

DATA (U401 Pin 100)

CLOCK (U401 Pin 1)

SYNTH_CS (U401 Pin 47)

MOD IN (U451 Pin 40)

+5V (U310 Pin 5)

+3V (U330 Pin 5)

Reference

Oscillator

Voltage

Multiplier

5,20,34,36

Figure 4-4. VHF Synthesizer Block Diagram

4.4.2 Voltage Controlled Oscillator (VCO)

The VCOBIC (U251), shown in Figure 4-5, in conjunction with the Fractional-N synthesizer (U201) generates RF in both the receive and the transmit modes of operation. The TRB line (U251 pin 19) determines which oscillator and buffer are enabled. A sample of the RF signal from the enabled oscillator is routed from U251 pin 12 through a low pass filter, to the prescaler input of the synthesizer IC (U201 pin 32). After frequency comparison in the synthesizer, a resultant DC control voltage is used to steer the VCO frequency. When the PLL is locked on frequency, this voltage can vary between 3 V and 9 V. L251 and C251 further attenuate noise and spurs on the steering line voltage.

In the receive mode, the TRB line (U251 pin 19) is low. This activates the receive VCO and the receive buffer of U251, which o perate within the ra nge of 180 .85 to 20 6.85 MHz. The VCO frequen cy is determined by tank inductor L254, C253 -C257, and varactor D251. The buf fered RF signal at U251 pin 8 is further amplified by Q280 and applied as RX_INJ to the low-p ass injection filter in the receiver front end circuit.

In the transmit mode, U251-19 is driven high by U201 pin 2, enabling the transmit VCO and buffer. The 136-162 MHz RF signal from U251 pin 10 is applied as TX_INJ to the input of the transmitter circuit via matching network C290-C291 and L291. TX VCO frequency is deter mined by L264, C263-

LOCK

FREFOUT

GND

IOUT

IADAPT

MODOUT

AUX3

SFOUT

BIAS1

BIAS2

4

19

6,22,23,24

43

45

41

2

28

40

39

LOCK (U401 Pin 56)

FREF (U451 Pin 34)

2-Pole

Loop Filter

VCO

TRB

Filtered 5V

Mod

Steering

Line

LO RF

Injection

Voltage

Controlled

Oscillator

TX RF

Injection

(First Stage of PA)

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136-162 MHz VHF Theory Of Operation: VHF Frequency Generation Circuitry 4-7

C267, and varactor D261. High-port audio modulation from the synthesizer IC is applied as VCO_MOD to varactor D262 which modulates the transmit VCO.

AUX3 (U201 Pin 2)

TRB_IN

Steer Line

Voltage

(V_STEER)

NC

V_SF (U201 Pin 28)

RX VCO

RX

TX

Circuit

TX VCO

Circuit

Tank

Pin 7

Pin 13

Pin 3

Pin 4

Pin 5

Pin 6

Pin 16

Pin 15

Pin 18

Vcc-Logic

Pin 20

Vcc-Superfilter

Collector/RF in

RX

TX

Vsens Circuit

TX/RX/BS

Switching Network

U251

VCOBIC

Rx Active

Bias

Tx Active

Bias

Pin 2 Rx-I adjust

Pin 19

Pin 1 Tx-I adjust

Pin 12

Presc

Pin 8

RX

Pin 14

Pin 10

TX

Pins 9,11,17

Prescaler Out

Buffer

Q280

VCC Buffers

U201 Pin 32

RX INJ

3V (U330 Pin 5)

Matching

Network

TX INJ

3V

(U330 Pin 5)

(U201 Pin 28)

Figure 4-5. VHF VCO Block Diagram

V_SF

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4-8 136-162 MHz VHF Theory Of Operation: VHF Frequency Generation Circuitry

Notes:

June, 2005 6880309N62-C

Chapter 5 146-174 MHz VHF Theory Of Operation

5.1 Introduction

This chapter provides a detailed theory of operation for the radio components. Schematic diagrams for the circuits described in the following paragraphs are located in Chapter 7 of this manual.

5.2 VHF Receiver

The VHF receiver covers the range of 146-174 MHz and provides switchable IF bandwidth for use with 12.5 kHz or 20/25 kHz channel spacing systems. The receiver is divided into two major blocks as shown in Figure 5-1.

•Front End

• Back End

Preselector

RX from

Antenna Switch

from Synthesizer

5.2.1 Receiver Front-End

Incoming RF signals from the antenna are first routed throug h the harmonic filter and ante nna switch, part of the transmitter circuitry, before being applied to the receiver front end. The receiver front end consists of a preselector filter, RF amplifier, an interstage filter, and a double-balanced first mixer.

The preselector filter is a fixed-tuned 4-pole design using discrete elements (L1-L4 and C1-C9) in a series/shunt resonator configuration. It has a 3 dB bandwidth of 44 MHz, an in sertion loss of 2 dB and image attenuation of 40 dB at 235 MHz, with increasing attenuation at higher frequencies. Diode CR1 protects the RF amplifier by limiting excessive RF levels.

The output of the filter is matched to the base of RF amplifier Q21, which provides 18 dB of gain and a noise figure of 2 dB. Operating voltage is obtained from the 5R source, which is turned off during transmit to reduce dissipation in Q21. Current mirror Q22 maintains the operating current of Q21

RF

Filter

First LO

Recovered Audio

Figure 5-1. VHF Receiver Block Diagram

Amp

RSSI

Interstage

Filter

Inj Filter

Ceramic

Resonator

1st Mixer

Demodulator

Crystal

Filter

6G

Switching

6E

IF

Amp

BW_SEL

Cer Fltr

4E

5-2 146-174 MHz VHF Theory Of Operation: VHF Receiver

constant at 6.2 mA regardless of device and temperature variations, for optimum dynamic range and noise figure.

The output of the RF amplifier is applied to the interstage filter, a fixed-tuned 3-pole series-coupled resonator design having a 3 dB bandwidth of 58 MHz and insertion loss of 1.8 dB. This filter has an image rejection of 42 dB at 235 MHz, with increasing attenuation at higher frequencies.

The output of the interstage filter is connected to the passive double-balanced mixer consisting of components T41, T42, and CR41. This mixer has a conversion loss of 7 dB. High-side injection from the frequency synthesizer is filtered by L40-L41 and C40-C44 to remove second harmonic energy that may degrade half-IF spurious rejection performance. The injection filter has a 3 dB bandwidth of 52 MHz and an insertion loss of 1.5 dB. The filtered injection signal is applied to T42 at a level of +6 dBm.

The mixer output is applied to a diplexer network (L51-L52, C51, R51) which ma tches the 44 .85 MHz IF signal to crystal filter FL51, and terminates the mixer into 50Ω at all other frequencies

5.2.2 Receiver Back-End

The receiver back end is a dual conversion design. High IF selectivity is provided by FL51, a 4-pole fundamental mode 44.85 MHz crystal filter with a minimum 3 dB bandwidth of + 6.7 kHz, a maximum 20 dB bandwidth of ±12.5 kHz, and a maximum insertion loss of 3.5 dB. The output is matched to IF amplifier stage Q51 by L53 and C93. Q5 1 provides 16 dB of gain and a noise figure of 1.8 dB. The dc operating current is 1 mA. The output of Q51 is applied to the input of the receiver IFIC U51. Diode CR51 limits the maximum RF level applied to the IFIC.

The IFIC is a low-voltage monolithic FM IF system incorporating a mixer/oscillator, two limiting IF amplifiers, quadrature detector, logarithmic received signal strength indicator (RSSI), voltage regulator and audio and RSSI op amps. The second LO frequency, 44.395 MHz, is determined by Y51. The second mixer converts the 44.85 MHz high IF frequency to 455 kHz.

Additional IF selectivity is provided by two ceramic filters, FL52 (between the second mixer and IF amp) and FL53 or FL54 (between the IF amp and the limiter input). The wider filter FL53 is used for 20/25 kHz channel spacing, and the narrower filter FL54 is used for 12.5 kHz channels. When the BW_SEL line is high, the two upper diodes in packages D51 and D52 are forward biased, selecting FL53 for 20/25 kHz channels. When the BW_SEL line is low, the two lower diodes in packages D51 and D52 are forward biased, selecting FL54 for 12.5 kHz channels.

FL52 FL53 FL54

Number of Elements: 4 6 6 Insertion Loss: 4 dB 4 dB 4 dB 6 dB Bandwidth: 15 kHz 15 kHz 9 kHz 50 dB Bandwidth: 30 kHz 30 kHz 22 kHz Stopband Rejection: 27 dB 47 dB 47 dB

Ceramic resonator Y70 provides phase vs. frequency characteristic required by the quadrature detector, with 90 degree phase shift occurring at 455 kHz. Buffer Q70 provides a lower driving impedance from the limiter to the resonator, improving the IF waveform and lowering the distortion of the recovered audio signal. The recovered audio level at the DEMOD output is 120 mV rms (25 kHz channel, 3 kHz deviation) or 60 mV rms (12.5 kHz chan n el, 1. 5 kHz devia tio n) . An ad dit ion a l RSSI output provides a DC voltage level that is proportio nal to RF signal level. This volt age is measured by an A/D converter contained in the microprocessor (PE4_AN4, U401 pin 63).

June, 2005 6880309N62-C

146-174 MHz VHF Theory Of Operation: VHF Transmitter 5-3

5.3 VHF Tr ansmitter

The VHF transmitter covers the range of 146-174 MH z. Depen ding on mo del, the output po wer of the transmitter is either switchable on a per-channel basis between high power (5 watts) and low power (1 watt), or is factory preset to 2 watts. The transmitter is divided into four major blocks as shown in

Figure 5-2.

• Power Amplifier

• Harmonic Filter

• Antenna Matching Network

• Power Control

USWB+

TX_INJ

(From VCO)

TX_ENA

PWR_SET

5T

Q100

Power Control

VGG

Power Amplifier Module U110

Figure 5-2. VHF Transmitter Block Diagram

5.3.1 Transmit Power Amplifier

The transmitter power amplifier has three stages of amplification. The first stage, Q100, operates in Class AB from the 5T source. It provides 13 dB of gain and an output of 20 mW. The current drain is typically 25mA. Components C105-C107 and L103 match the output of Q100 to the 50Ω input of the module U110.

U110 is a two stage Silicon MOS FET power amplifier module. Drain voltage is obtained from UNSW B+ after being routed through current-sense resistor R150 in the power control circuit. The output power of the module is controlled by varying the DC gate bias on U110 pin 2 (VGG).

5.3.2 Antenna Switch

VDD

RX_IN

(To Receiver)

Antenna

Switch

Harmonic Filter

Antenna

Matching

Network

J140 Antenna Jack

Antenna

The antenna switch consists of two pin diodes, D120 and D121. In the rece ive mode, both diodes are off. Signals applied at the antenna or at jack J140 are routed, via the harmonic filter, through network C122-C124 and L121, to the receiver input. In the transmit mode, Q170 is on and TXB+ is present, forward-biasing both diodes into conduction. The diode current is 50 mA, set by R120-R122. The transmitter RF from U110 is routed through D120, and via the harmonic filter to the antenna jack. D121 conducts, shunting RF power and preventing it from reaching the receiver. L121 is selected to appear as a 1/4 wave at VHF, so that the low impedance of D121 appears as a high impedance at the junction of D120 and the harmonic filter input. This provides a high series impedance and low shunt impedance divider between the power amplifier output and receiver input.

5.3.3 Harmonic Filter

The harmonic filter consists of components C130- C136 and L130-L132. The harmonic filter is a seven-pole elliptical low-pass configuration, optimized for low insertion loss, with a 3 dB frequency of approximately 210 MHz and typically less than 0.8 dB insertion loss in the passband.

6880309N62-C June, 2005

5-4 146-174 MHz VHF Theory Of Operation: VHF Frequency Generation Circuitry

5.3.4 Antenna Matching Network

The harmonic filter presents a 50 Ω impedance to antenna jack J140. A matching network, made up of C140-C141 and L140, is used to match the antenna impedance to the harmonic filter. This optimizes the performance of the transmitter and receiver into the impedance presented by the antenna, significantly improving the antenna's efficiency.

5.3.5 Power Control

The power control circuit is a dc-coupled amplifier whose output is the dc gate bias voltage (VGG) applied to the two stages of the RF power amplifier U110.

The output power of the transmitter is adjusted by varying the setting of the power-set DAC cont ained in the ASFICcmp IC (DACG, U451 pin 6). This PWR_SET voltage is applied to U150 pin 3.

Stage U150-2 compares the voltage drop across current sense resistor R150 to the voltage drop across resistor R151 caused by current flow through Q150, and adjusts its output (pin 7) to maintain equal voltages at pins 5 and 6. Thus the current flow through Q150, and hence its emitter voltage, is proportional to the current drawn by stage U110, which is in turn proportional to the transmitter output power. The emitter voltage of Q150 is applied to U150 pin 2, where it is compared to the power set voltage PWR_SET at pin 3.

The output of U150 pin 1 is divided by R110 and R111 and applied as a gate voltage to the power amplifier U110. By varying this gate voltage as needed to keep the voltages at U150 pins 2 and 3 equal, power is maintained at the desired setting. Excessive final current, for example due to antenna mismatch, causes a lowering of the voltage at U150 pin 6, an increased voltage at pin 2, and a lowering of the voltage at pin 1 and of the gate voltage VGG. This prevents damage to the final stage due to excessive current.

5.4 VHF Frequency Generation Circuitry

The frequency generation system, shown in Figure 5-3, is composed of two circuit blocks, the Fractional-N synthesizer IC U201, the VCO/Buffer IC U251, and associated circuitry. Figure 5-4 shows the peripheral interconnect and support circuitry used in the synthesizer block, and Figure 5-5 details the internal circuitry of the VCOBIC and its interconnections to the surrounding components. Refer to the schematic to identify reference designators.

The Fractional-N synthesizer is powered by regulated 5 V and 3 V provided by U310 and U330 respectively. 5 V is applied to U201 pins 13 and 30, and 3 V is applied to pins 5, 20, 34 and 36. The synthesizer in turn generates a super-filtered 4.5 V supply (VSF, from pin 28) to power U251. In addition to the VCO, the synthesizer also interfaces with the logic and ASFICcmp circuits. Programming for the synthesizer is accomplished through the microprocessor SPI_DATA_OUT, SPI_CLK, and SYNTH_CS (chip select) lines (U409 pins 100, 1 and 47 respectively). A logic high (3 V) from U201 pin 4 indicates to the microprocessor that the synthesizer is locked.

June, 2005 6880309N62-C

146-174 MHz VHF Theory Of Operation: VHF Frequency Generation Circuitry 5-5

Transmit modulation from the ASFICcmp (U451 pin 40) is applied to U201 pin 10 (MOD_IN). An electronic attenuator in the ASFICcmp adjusts overall transmitter deviation by varying the audio level applied to the synthesizer IC. Internally the audio is digitized by the Fractional-N synthesizer and applied to the loop divider to provide the low-port modulation. The audio is also routed through an internal attenuator for the purpose of balancing the low port and high port modulation and reducing the deviation by 6 dB for 12.5 kHz channels, and is available at U201 pin 41 (VCO_MOD). This audio signal is routed to the VCO's modulator.

Voltage

Multiplier

VCP

Vmult1

Vmult2

Synthesizer

Aux3

U201

16.8 MHz Ref. Osc.

MOD Out

Modulating

Signal

Figure 5-3. VHF Frequency Generation Unit Block Diagram

5.4.1 Fractional-N Synthesizer

The Fractional-N synthesizer, shown in Figure 5-4, uses a 16.8 MHz crystal (Y201) to provide the reference frequency for the system. External components C201-C203, R202 and D201 are also part of the temperature-compensated oscillator circuit. The dc voltage applied to varactor D201 from U201 pin 25 is determined by a temperature-compensation algorithm within U201, and is specific to each crystal Y201, based on a unique code assigned to the crystal that identifies its temperature characteristics. Stability is better than 2.5 ppm over temperatures of -30 to 60 °C. Softwareprogrammable electronic frequency adjustment is achieved by an internal DAC which provides a frequency adjustment voltage from U201 pin 25 to varact or D201.

The synthesizer IC U201 further divides the 16.8 MHz signal to 2.1 MHz, 2.225 MHz, or 2.4 MHz for use as reference frequencies. It also provides a buffered 16.8 MHz signal at U201 pin 19 for use by the ASFICcmp.

To achieve fast locking of the synthesizer, an internal adapt charge pump provides higher current at U201 pin 45 to quickly force the synthesizer within lock range. The required frequency is then locked by the normal mode charge pump at pin 43. A lo op filter (C243 -C245 and R243 -R245) removes noise and spurs from the steering voltage applied to the VCO varactors, with additional filtering located in the VCO circuit.

Both the normal and adapt charge pumps get their supply from the capa citive volt age multiplie r made up of C221-C224 and D220-D221. Two 3 V square waves from U201 pins 14-15 provide the drive signals for the voltage multiplier, which generates 12.1 V at U201 pin 47. This voltage is filtered by C225-C228.

Loop

Filter

TRB

Rx VCO

Circuit

Tx VCO

Circuit

VCOBIC

U251

Rx Out

Tx Out

Buffer

Q280

To Mixer

To PA Driver

6880309N62-C June, 2005

5-6 146-174 MHz VHF Theory Of Operation: VHF Frequency Generation Circuitry

One of the auxiliary outputs of the synthesizer IC (AUX3, U201 pin 2) provides the TRB signal which determines the operating mode of the VCO, either receive or transmit.

13,30

10

23

25

32

47

7

8

9

DATA

CLK

CEX

MODIN

V

, 5V

CC

, 3V

V

DD

XTAL1

WARP

PREIN

VCP

VMULT2

U201 Low Voltage Fractional-N Synthesizer

VMULT1

14

15

Prescaler In

DATA (U401 Pin 100)

CLOCK (U401 Pin 1)

SYNTH_CS (U401 Pin 47)

MOD IN (U451 Pin 40)

+5V (U310 Pin 5)

+3V (U330 Pin 5)

Reference

Oscillator

Voltage

Multiplier

5,20,34,36

Figure 5-4. VHF Synthesizer Block Diagram

5.4.2 Voltage Controlled Oscillator (VCO)

The VCOBIC (U251), shown in Figure 5-5, in conjunction with the Fractional-N synthesizer (U201) generates RF in both the receive and the transmit modes of operation. The TRB line (U251 pin 19) determines which oscillator and buffer are enabled. A sample of the RF signal from the enabled oscillator is routed from U251 pin 12 through a low pass filter, to the prescaler input of the synthesizer IC (U201 pin 32). After frequency comparison in the synthesizer, a resultant DC control voltage is used to steer the VCO frequency. When the PLL is locked on frequency, this voltage can vary between 3 V and 9 V. L251 and C251 further attenuate noise and spurs on the steering line voltage.

In the receive mode, the TRB line (U251 pin 19) is low. This activates the receive VCO and the receive buffer of U251, which o perate within the ra nge of 190 .85 to 21 8.85 MHz. The VCO frequen cy is determined by tank inductor L254, C253 -C257, and varactor D251. The buf fered RF signal at U251 pin 8 is further amplified by Q280 and applied as RX_INJ to the low-p ass injection filter in the receiver front end circuit.

In the transmit mode, U251-19 is driven high by U201 pin 2, enabling the transmit VCO and buffer. The 146-174 MHz RF signal from U251 pin 10 is applied as TX_INJ to the input of the transmitter circuit via matching network C290-C291 and L291. TX VCO frequency is deter mined by L264, C263-

LOCK

FREFOUT

GND

IOUT

IADAPT

MODOUT

AUX3

SFOUT

BIAS1

BIAS2

4

19

6,22,23,24

43

45

41

2

28

40

39

LOCK (U401 Pin 56)

FREF (U451 Pin 34)

2-Pole

Loop Filter

VCO

TRB

Filtered 5V

Mod

Steering

Line

LO RF

Injection

Voltage

Controlled

Oscillator

TX RF

Injection

(First Stage of PA)

June, 2005 6880309N62-C

146-174 MHz VHF Theory Of Operation: VHF Frequency Generation Circuitry 5-7

C267, and varactor D261. High-port audio modulation from the synthesizer IC is applied as VCO_MOD to varactor D262 which modulates the transmit VCO.

AUX3 (U201 Pin 2)

TRB_IN

Steer Line

Voltage

(V_STEER)

NC

V_SF (U201 Pin 28)

RX VCO

RX

TX

Circuit

TX VCO

Circuit

Tank

Pin 7

Pin 13

Pin 3

Pin 4

Pin 5

Pin 6

Pin 16

Pin 15

Pin 18

Vcc-Logic

Pin 20

Vcc-Superfilter

Collector/RF in

RX

TX

Vsens Circuit

TX/RX/BS

Switching Network

U251

VCOBIC

Rx Active

Bias

Tx Active

Bias

Pin 2 Rx-I adjust

Pin 19

Pin 1 Tx-I adjust

Pin 12

Presc

Pin 8

RX

Pin 14

Pin 10

TX

Pins 9,11,17

Prescaler Out

Buffer

Q280

VCC Buffers

U201 Pin 32

RX INJ

3V (U330 Pin 5)

Matching

Network

TX INJ

3V

(U330 Pin 5)

(U201 Pin 28)

Figure 5-5. VHF VCO Block Diagram

V_SF

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5-8 146-174 MHz VHF Theory Of Operation: VHF Frequency Generation Circuitry

Notes:

June, 2005 6880309N62-C

Chapter 6 VHF Troubleshooting Tables

6.1 Troubleshooting Table for Receiver

Table 6-1. Troubleshooting Table for Receiver

Symptom Possible Causes Procedure Corrective Action

Radio Dead (no turn-on beep, no LED indication)

1. Battery dead or defective.

2. Defective battery contacts.

3. Blown fuse Check voltage on each side of fuse.

4. DC switching fault Verify battery voltage present at

5. Microprocessor not starting up.

6. Regulator fault Verify U310-5 is 5 V dc, U320-5 is

Substitute known good battery or battery eliminator.

Inspect battery contacts for corrosion or bent terminals.

If blown, 0 VDC after fuse.

S444 pin 5 when radio is on. Verify Q494-1 is at least 1 V dc,

Q494-6 is ~0.1 V dc, Q493-3 is at Vbatt.

Verify clock input to U401-90 (EXTAL) is 7.3975 MHz using high impedance probe. If clock is 3.8 MHz, check for shorts on U401 pins. Connect RIB to verify communication via CPS.

Verify U401-94 (RESET) is high.

3.3 V dc, U330-5 is 3 V dc.

Charge or replace battery.

Clean/repair/replace J301.

Check for short on output, check D301, VR301, troubleshoot/repair as needed, replace fuse.

Check/replace on-off-volume control S444.

Troubleshoot/replace Q493/4.

Verify 16.8 MHz signal at U451-

34. If OK, troubleshoot/replace U451. If not present, troubleshoot U201 Synthesizer. Reprogram/reflash as needed.

If RESET is Low, troubleshoot regulator U320. Check for shorts at U401 pins. Replace U401 (depot only). Reprogram/ reflash as needed.

Check for shorts on outputs, troubleshoot/repair as needed, replace faulty regulator.

6-2 VHF Troubleshooting Tables: Troubleshooting Table for Receiver

Table 6-1. Troubleshooting Table for Receiver (Continued)

Symptom Possible Causes Procedure Corrective Action

No Audio

No Receive (squelch noise present)

1. Synthesizer out of lock Verify U201-4 is at 3 V dc. Troubleshoot synthesizer/VCO circuits.

2. Defective IFIC Veri fy audio is present at U51-8. Check Q70, Y70, U51.

3. RX audio buffer fault Verify audio is present at U451-2. Check U510 and associated parts.

4. ASFIC fault Verify audio is present at U451-41.

Verify U451-14 is high.

5. Audio PA fault Verify U490-1 is <0.2 V dc.

Verify audio is present at U490-5 and 8.

6. Defective speaker Verify audio is present at speaker

terminals.

1. No first injection Check that RF level at T42-6 is

approx +6 dBm. Check that RF level at U251-8 is at

least -8 dBm.

2. No 5R source. Verify U401-49 is high in RX.

Check squelch setting, PL/DPL programming. Troubleshoot/ replace U451.

Check Q490. Check/replace U490.

If not, check continuity of J471-2 and 3. Check J491. If yes, replace speaker.

Check injection filter C40-44, L40-41.

If yes, check Q280 and associated parts. If no, check U251 and components on pins 5 and

6. Check/replace U401

Verify Q311 gate is 0 V dc in RX Verify Q311 drain is 5 V dc in RX.

3. Harmonic filter or

antenna switch fault

4. Back end fault Apply on-channel 100 mV RF signal

5. No second injection Measure RF level at U51-3, verify

Apply on-channel 100 mV RF signal at antenna port. Verify RF level at jct. C1/C2 per schematic.

at antenna port. Measure RF levels from FL51 through U51.

approx. 280 mV rms.

Check/replace Q313. Check for shorts, check/replace

Q311. Check TX harmonic filter, D120-

121. Should be 0 V dc on D120-

121. Check components prior to loss-

of-signal point.

If dc voltages at U51-3 and 4 are OK, check Y51 and associated parts. If not replace U51.

June, 2005 6880309N62-C

VHF Troubleshooting Tables: Troubleshooting Table for Synthesizer 6-3

6.2 Troubleshooting Table for Synthesizer

Table 6-2. Troubleshooting Table for Synthesizer

Symptom Possible Causes Procedure Corrective Action

Synthesizer Out of Lock (RX mode only)

Synthesizer Out of Lock (TX mode only)

Synthesizer Out of Lock (RX and TX modes)

1. VCO fault V erify oscillator is working, check RF level at U251-10 per schematic.

Check dc voltages at U251 pin 2 through 6 and 10 per

Verify steering line voltage is between ~3 V and 10 V.

2. Synthesizer fault Verify TRB line (from U201-2 to U251-19) is low in RX mode

3. Programming fault Verify RX channel programming is correct.

1. VCO fault Verify oscillator is working, check RF level at U251-10 per schematic.

Check dc voltages at U251 pins 1,3,4,10,15,16 per Ta b l e 6 - 4 .

Verify steering line voltage is between ~3 V and 10 V.

2. Synthesizer fault Verify TRB line (U201-2 to U251-19) is high (3 V) in TX mode

3. Programming fault Verify TX channel programming is correct.

1. VCO fault Check that RF level at U251-12 is at least 150 mV (VHF) or -12 to -20 dBm (UHF)

2. Synthesizer fault Check that RF level at U201-32 is at least 150 mV (VHF) or -12 to -20 dBm (UHF).

Table 6-4.

Check VCO tank components connected to U251-5 and 6.

Check for shorts/opens, replace U251.

Check D251 and associated components.

Check for shorts, check U201 voltages per U201 if incorrect.

Re-program if necessary .

Check VCO tank components connected to U251-15 and 16.

Check for shorts/opens, replace U251.

Check D261 and associated components.

Check for shorts, check U201 voltages per U201 if incorrect.

Re-program if necessary .

If low/missing, check L276, C276-7, R276.

If correct, check/replace U201. If incorrect, check R248 and C241.

Ta b le 6 - 4 , replace

Verify steering line voltage is between ~3 V and 10 V.

3. DC voltage fault Verify 4.5 V dc at U201-28.

Verify 12.1 V dc at U201-47

4. Programming fault Verify channel programming is correct.

6880309N62-C June, 2005

Check loop filter components R243-5 and C243-5.

Check C231-233, etc., for shorts. If OK check/replace U201.

Check for 3 V 1.05 MHz sq waves at U201-14 and 15. Check C218-228, D220-221.

Re-program if necessary .

6-4 VHF Troubleshooting Tables: Troubleshooting Table for Transmitter

6.3 Troubleshooting Table for Transmitter

Table 6-3. Troubleshooting Table for Transmitter

Symptom Possible Causes Procedure Corrective Action

No Transmit (no TX LED indication)

No Transmit (TX LED indication OK)

1. PTT switch defective. Verify U401-71 goes low when PTT is pressed.

2. EXT MIC PTT fault Verify U401-72 goes low when J4714 is grounded.

1. Synthesizer out of lock Refer to Table 6-2. Refer to Table 6-2.

2. No TX_ENABLE Verify U401-50 is high when pin 71 or 72 is low.

3. TX DC switch fault Verify Q171-C is 0 V in TX. Verify Q170-C is at Vbatt in TX.

4. Power control fault Check Q150 and U150 dc voltages per schematic and

5. No TX injection Check that RF level at jct. R100/ R101 per schematic.

6. No 5T source Verify Q312 gate is 0 V dc in TX Verify Q312 drain is 5 V dc in TX.

7. TX gain stage failure Check RF levels at Q100 and U110 per schematic.

8. Antenna switch failure Verify dc voltage at jct. R122/L120 is approx 1.5 V .

Table 6-4.

Replace PTT switch S441.

Check/replace Q470, L471 etc.

Check/replace U401.

Replace Q171. Check for shorts, replace Q170.

Repair/replace defective components

Check U251, L291-292, C290-

291. Check/replace Q313.

Check for shorts, check/replace Q312.

Troubleshoot Q100/U110 and associated circuitry.

Check/replace D120-121, L120121, R120-122, etc.

June, 2005 6880309N62-C

VHF Troubleshooting Tables: Troubleshooting Table for Transmitter 6-5

Table 6-3. Troubleshooting Table for Transmitter (Continued)

Symptom Possible Causes Procedure Corrective Action

Low Power

Poor TX range, conducted power OK

1. Low TX injection Check that RF level at jct. R100/ R101 per schematic.

2. Low gain in TX stage Verify dc voltage at Q100-E is ~1.3 V (VHF) or ~0.5 V (UHF).

Verify that RF level at U110-1 is approx. 1 V (VHF) or 1.6 V (UHF).

3. Incorrect control volt-

age

4. Antenna switch defect Verify dc voltage at jct. R122/L120

5. Harmonic filter defect Visually inspect components C130-

1. RF test jack defective Verify continuity of J140 pins 3 and 4

2. Antenna matching net-

work fault

3. Defective or wrong

antenna

Verify that the dc voltage at PWR_SET (R162) is approx 1.8 V dc (at 1 watt) to 2.6 V dc (at 4-5 watts).

Verify that the dc voltage at U110-2 is approx 2-3 V dc (at 1 watt) to 3-4 V dc (at 4-5 watts). (See schematic.)

(VHF) or R121/L120 (UHF) is approx

1.7 V. Note: Do not attempt to mea-

sure RF or DC voltages at the diodes. Damage to test equipment may occur.

137, L130-132. Check dc continuity of L130-132 in RX mode only.

in RX mode only. Visually inspect components C140-

141, L140 or L141. Check dc continuity of L140 or L141in RX mode only.

Verify correct antenna is installed. Try another antenna.

Check U251, L291-292, C290-

291. Verify 5T voltage is correct.

Troubleshoot Q100 circuitry. Troubleshoot Q100 circuitry.

Check/replace Q100. Check programming. Trouble-

shoot controller circuitry. Check/ replace U451.

Troubleshoot U150, Q150 and associated circuitry.

Check/replace D120-121, L120121, R120-122, etc.

Repair/replace if necessary.

Replace J140.

Repair/replace if necessary.

Replace antenna.

No internal mic audio (EXT MIC audio OK)

6880309N62-C June, 2005

1. Mic bias fault Verify U451-35 is low when side PTT is pressed.

Verify Q470-6 is high when side PTT button is pressed.

2. Defective mic Verify approx 1.8 V dc across cartridge when side PTT button is pressed. Verify audio present (~10 mV rms) when speaking into mic.

3. Defective mic jack Verify continu ity between J471 pins 4 and 5.

Check/replace U451.

Check/replace R474, R476, and Q470.

Check mic connector and R478. Replace mic cartridge.

Replace J471.

6-6 VHF Troubleshooting Tables: Troubleshooting Table for Transmitter

Table 6-3. Troubleshooting Table for Transmitter (Continued)

Symptom Possible Causes Procedure Corrective Action

No EXT MIC audio 1. Mic bias fault Verify approx 1.8 V dc across EXT

MIC cartridge in TX mode. Verify audio present (~10 mV rms) when speaking into mic.

2. Audio path fault Verify mic audio present (~10 mV rms) at U451-46.

Verify amplified mic audio present (~200 mV rms) at U451-40.

3. Defective audio acces-

sory

Try another accessory. Replace defective accessory.

Check Q470. R475, R477, L471. Check VR473, VR475, D470 for shorts.

Check L471, C470.

Check/replace U451.

June, 2005 6880309N62-C

VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals 6-7

6.4 Troubleshooting Table for Board and IC Signals

Table 6-4. Troubleshooting Table for Board and IC Signals

IC Designator Pin Pin Function DC Voltage Comments (Condition)

U51 IFIC

1 RF input 44.85 MHz 1.20 2 RF input decoupling 1.20 3 2nd LO osc output 4.02 4 2nd LO osc input 4.60 5 RSSI output 0.74 (no received signal) 6 Vcc 4.70 7 Audio feedback 0.89 8 Audio output 1.44 DEMOD to stage U510

9 RSSI feedback 0.74 (no received signal) 10 Quad detector input 2.22 11 Limiter output 1.25 12 Limiter decoupling 2 1.30 13 Limiter decoupling 1 1.30 14 Limiter input 1.28 15 Ground GND 16 IF amp output 1.22 17 IF amp decoupling 2 1.26 18 IF amp input 1.26 19 IF amp decoupling 1 1.26 20 2nd mixer output 3.09

U52

BW Select Switch

6880309N62-C June, 2005

1 Inverter 1 input 0 (25 kHz mode)

2 Inverter 2 output 0 (25 kHz mode)

3 Inverter 3 input (NU) GND

4 Ground GND

5 Inverter 3 output (NU) 4.96

6 Inverter 2 input 3.00 (25 kHz mode)

7 Inverter 1 output 4.95 (25 kHz mode)

8 Vcc 4.96

6-8 VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

Table 6-4. Troubleshooting Table for Board and IC Signals (Continued)

IC Designator Pin Pin Function DC Voltage Comments (Condition)

U110

RF Power Amp

U150

Dual Opamp

U201

Freq Synthesizer

1 RF input 0 (TX mode) 2 Vgg (gate bias) 2.65 (typ) (TX mode) (4.25 V typ at VHF) 3 Vdd 6.59 (TX mode) 4 RF output -- Do not measure 5 Ground GND 1 Unit 1 output 4.20 (typ) (TX mode) (5.8 V typ at VHF) 2 Unit 1 (-) input 2.39 (typ) (TX mode) 3 Unit 1 (+) input 2.39 (typ) ( TX mode) 4 Ground GND 5 Unit 2 (+) input 3.30 (typ) ( TX mode) 6 Unit 2 (-) input 3.35 (typ) (TX mode) 7 Unit 2 output 2.23 (typ) (TX mode) 8 Vcc 6.79 (TX mode) 1 AUX2 output (NU) 0 2 AUX3 output (TRB) 0.03 To U251-19 (RX mode) 3 AUX4 output (NU) 0 4 Lock detect output 2.98 To U401-56 5PD Vdd 2.98 6 Digital ground GND 7 Serial data input 3.23 8 Serial clock input 0

9 Synth chip select 3.23 From U401-47 10 Modulation input 1.50 From U451-40 11 VMULT4 (NU) 2.98 12 VMULT3 (NU) 0 13 VRO 4.96 14 VMULT2 1.49 15 VMULT1 1.49 16 INDMULT (NU) 0 17 NC1 0 18 Ref select (NU) 0 19 Buffered 16.8 MHz out 1.54 20 Analog Vdd 3.00 21 V bypass (NU) 1.55 22 Analog ground GND 23 Ref osc XTAL1 2.07

June, 2005 6880309N62-C

VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals 6-9

Table 6-4. Troubleshooting Table for Board and IC Signals (Continued)

IC Designator Pin Pin Function DC Voltage Comments (Condition)

U201

Freq Synthesizer

24 Ref osc XTAL2 0 25 Ref osc warp output 3.00 26 Superfilter cap 4.48 27 Superfilter base (NU) 3.76 28 Superfilter output 4.52 29 NC2 0 30 Superfilter input 4.96 31 NC3 0 32 Prescaler input 1.97 33 Prescaler ground GND 34 Prescaler Vdd 2.99 35 Prescaler Vref (NU) 1.97 36 Digital Vdd 2.99 37 TEST1 (NU) 0.01 38 TEST2 (NU) 0 39 Bias 2 3.38 (typ) (1.34 V in TX mode) 40 Bias 1 1.50 (typ) (3.20 V in TX mode) 41 Modulation output 3.42 (typ) (1.62 V typ in TX mode) 42 CCOMP (NU) 0.05 43 Steering line IOUT 9.62 (typ) Depends on frequency

U251

VCO / Buffer

44 PD ground GND 45 Steering line IADAPT 9.62 (typ) Depends on frequency 46 Adapt switch (NU) 0 47 Voltage from charge pump 12.8 48 AUX1 output (NU) 2.98

1 TX VCO current adjust 4.50 2 RX VCO current adjust 4.35 3 Superfiltered input 4.51 4 Collector RF in amp 4.35 5 RX VCO base 1.27 6 RX VCO emitter 0.48 7 RX switch output (NU) 0 8 RX buffered VCO output 3.36

9 GND_FLAG GND 10 TX buffered VCO output 3.36 11 GND_BUFFERS GND

6880309N62-C June, 2005

6-10 VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

Table 6-4. Troubleshooting Table for Board and IC Signals (Continued)

IC Designator Pin Pin Function DC Voltage Comments (Condition)

U251

VCO / Buffer

U310

5 V Regulator

U320

3.3 V Regulator

12 Prescaler output 2.26 13 TX switch output (NU) 0.06 14 Vcc_BUFFERS 3.00 15 TX VCO emitter 0 (RX mode) 16 TX VCO base 0 (RX mode) 17 GND_LOGIC GND 18 Vcc_LOGIC 3.00 19 TRB input 0.03 From U201-2 (RX mode) 20 FLIP input GND

1 Vin 7.48 2 Ground GND 3 Control input 7.48 4 Bypass capacitor 1.26 5Vout 4.96 1 Ground GND 2 Feedback 1.23 3 Tap (NU) 0 4 Vin 7.48 5 Vout 3.23 6 Sense (NU) 0

U330

3 V Regulator

U401

Microprocessor

7 Error (reset output) 3.20 8 Shutdown input 7.48 1 Vin 7.48 2Ground GND 3 Control input 7.48 4 Bypass capacitor 1.26 5 Vout 3.00 1 PD4_SCK serial clock input 0 2 PD5_SS 3.23 ASFIC chip select 3 PD6_VLIN 3.23 EEPROM chip select 4 PG7_R_W 3.21 5 PG6_AS 3.23 6 PG0_XA13 3.23 7 PB7_ADDR15 0.026 8 PB6_ADDR14 0.028 9 PB3_ADDR11 3.06

June, 2005 6880309N62-C

VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals 6-11

Table 6-4. Troubleshooting Table for Board and IC Signals (Continued)

IC Designator Pin Pin Function DC Voltage Comments (Condition)

U401

Microprocessor

10 PB1_ADDR9 3.05 1 1 PB2_ADDR10 0.16 12 VDD 3.23 13 VSS GND 14 PBO_ADDR8 3.05 15 PB5_ADDR13 0.13 16 PG1_XA14 0.20 17 PG4_XA17 3.17 18 PG5_XA18 0 19 PG3_XA16 3.21 20 PG2_XA15 0.30 21 PB4_ADDR12 0.22 22 PF7_ADDR7 3.03 23 PF6_ADDR6 3.08 24 PF5_ADDR5 3.06 25 PF4_ADDR4 0.16 26 PF3_ADDR3 0.26 27 PF2_ADDR2 3.06 28 PF1_ADDR1 3.06 29 PFO_ADDR0 3.05 30 PC0_DATA0 0.69 31 PC1_DATA1 0.96 32 PC2_DATA2 1.10 33 PC3_DATA3 0.81 34 PC4_DATA4 0.62 35 PC5_DATA5 0.68 36 PC6_DATA6 0.67 37 PC7_DATA7 0.73 38 PH7_CSPROG 3.05 39 VDDL 3.23 40 VSSL GND 41 PH6_CSGP2 3.23 42 PH5_CSGP1 3.23 43 PH4_CSIO 0 44 PH3_PW4 3.21 On/off control output 45 PH2_PW3 0

6880309N62-C June, 2005

6-12 VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

Table 6-4. Troubleshooting Table for Board and IC Signals (Continued)

IC Designator Pin Pin Function DC Voltage Comments (Condition)

U401

Microprocessor

46 PH1_PW2 3.00 47 PH0_PW1 3.23 Synth chip select 48 XIRQ 3.00 49 PI7 1.48 RX enable 50 PI6 0.01 TX enable 51 PI5 3.23 52 PI4 0 Green LED enable 53 PI3 0 Red LED enable 54 PI2 0 55 PI1 0 56 PI0 2.98 Lock detect from U201-4 57 MODB_VSTBY 3.22 Boot mode enable 58 MODA_LIR 3.12 59 AVDD 3.23 60 PE7_AN7 3.20 61 PE6_AN6 3.20 62 PE5_AN5 2.91 VOX threshold detect 63 PE4_AN4 0.73 RSSI input 64 PE3_AN3 0.14 65 PE2_AN2 1.62 66 PE1_AN1 0 - 3.3 V Volume control wiper 67 PE0_AN0 2.48 33% of battery voltage 68 VRL 0 69 VRH 3.20 70 AVSS GND 71 PJ0_CSGP3 3.23 Side PTT button 72 PJ1_CSGP4 0 External MIC PTT 73 PJ2 3.23 74 PJ3 3.23 75 PJ4 3.23 76 PJ5 0 77 PJ6 3.23 Bottom option button 78 PJ7 3.23 Top option button 79 PA0_IC3 0 80 PA1_IC2 1.57 81 PA2_IC1 3.00

June, 2005 6880309N62-C

VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals 6-13

Table 6-4. Troubleshooting Table for Board and IC Signals (Continued)

IC Designator Pin Pin Function DC Voltage Comments (Condition)

U401

Microprocessor

U402

EEPROM

82 PA3_IC4_OC5_OC1 3.00 83 PA4_OC4_OC1 0 Squelch detect input 84 PA5_OC3_OC1 0 Channel activity input 85 PA6_OC2_OC1 0 86 PA7_PA1_OC1 0 87 VSSR GND 88 VDDR 3.23 89 ECLK (NU) 1.60 90 EXTAL 1.70 Clock from U451-28 91 XTAL 1.40 Not used 92 VDDSYN 0 93 XFC (NU) 0 94 RESET 3.20 From U320 95 LVOUT 0 96 IRQ 3.20 97 PD0_RXD 3.23 98 PD1_TXD 1.9 99 PD2_MISO 0

100 PD3_MOSI 3.23

1 Chip select 3.23 From U401 -3

2 Serial data out 0

3 Write protect 3.23

4 Vss GND

5 Serial data in 3.23

6 Serial clock 0

7Hold 3.23

8 Vcc 3.23

U404

Flash ROM

6880309N62-C June, 2005

1 A11 3.06

2 A9 3.08

3A8 3.05

4 A13 0.13

5 A14 0.31

6 NC 3.17

7 EN_WE 3.21 From U401-4

8 Vcc 3.23

9 RESET 3.20

6-14 VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

Table 6-4. Troubleshooting Table for Board and IC Signals (Continued)

IC Designator Pin Pin Function DC Voltage Comments (Condition)

U404

Flash ROM

10 A16 3.17 11 A15 0.30 12 A12 0.22 13 A7 3.03 14 A6 3.08 15 A5 3.06 16 A4 0 17 A3 0.24 18 A2 3.08 19 A1 3.05 20 A0 3.05 21 D0 0.69 22 D1 0.94 23 D2 1.08 24 GND GND 25 D3 0.78 26 D4 0.59 27 D5 0.66 28 D6 0.67 29 D7 0.75

U451

ASFIC_CMP

30 EN_CE 3.01 From U401-38 31 A10 0.16 32 EN_OE 0 From U401-86

1 VDD for analog circuits 3.00 2 DISC audio input 1.34 From U510 3 Ground for analog circuits GND 4 DACU output 0 5 DACR output 0 6 DACG output 2.38 (typ) Power set (TX mode) 7 VOX peak detector output 2.91 8 PLCAP for DC integrator 0.40

9 SQIN 0.01 10 Universal audio input/output 0 11 VDD for DACs 4.95 12 SQCAP 0 13 GCB2 general purpose output 0 Audio PA_EN (unsquelched)

June, 2005 6880309N62-C

VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals 6-15

Table 6-4. Troubleshooting Table for Board and IC Signals (Continued)

IC Designator Pin Pin Function DC Voltage Comments (Condition)

U451

ASFIC_CMP

14 GCB1 general purpose output 0 15 GCB0 general purpose output 3.00 BW select (25 kHz mode) 16 Squelch channel activity output 0 To U401-84 17 Squelch detect digital output 0 To U401-83 18 PL/low speed data I/O 1.50 19 High speed data I/O 3.00 20 Chip select 3.23 From U401-2 21 Serial clock input 0 22 Serial data input 3.23 23 Ground for clock synthesizer GND 24 Loop filter cap for clock syn 0.74 25 PLCAP2 for LS integrator 1.17 26 Not used 0 27 Vdd for clock synthesizer 3.00 28 Clock synthesizer output 1.70 29 1200 Hz ref for MDC decode 3.00 30 GNDDO GND 31 Ground for digital circuits GND 32 Vdd for analog switches 4.96 33 Vdd for digital circuits 3.00 34 16.8 MHz master clock input 1.54 35 GCB3 general purpose output 3.00 Internal MIC enable 36 TX audio return from option 0 37 GCB4 general purpose output 0 38 GCB5 general purpose output 0 39 RX audio send to option 1.48 40 Modulation output 1.50 To U201-10 41 RX audio out to power amp 1.51 42 Flat TX audio return from option 0.20 43 RX audio return to option 1.50 44 Flat TX audio send to option 1.50 45 Vdd for audio path I/O filters 3.00 46 Mic audio input 1.50 47 Ground for audio path I/O filters GND 48 Ext mic audio input (not used) 0

6880309N62-C June, 2005

6-16 VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

Notes:

Table 6-4. Troubleshooting Table for Board and IC Signals (Continued)

IC Designator Pin Pin Function DC Voltage Comments (Condition)

U480

Dual Opamp

U490

Audio Power Amp

U510

Dual Opamp

1 Unit 1 output 2.48

2 Unit 1 (-) input 2.48

3 Unit 1 (+) input 2.46

4 Ground GND

5 Unit 2 (+) input 0.28

6 Unit 2 (-) input 0.29

7 Unit 2 output 0

8 Vcc 4.96

1 Enable/shutdown 0.12 (Unsquelched)

2 Bias reference 3.26 (Unsquelched)

3 (+) input 3.26 (Unsquelched)

4 (-) input 3.27 (Unsquelched)

5 (-) output 3.25 (Unsquelched)

6 Vcc 7.48 (Unsquelched)

7Ground GND

8 (+) output 3.29 (Unsquelched)

1 Unit 1 output 1.75

2 Unit 1 (-) input 1.56

3 Unit 1 (+) input 1.55

4 Ground GND

5 Unit 2 (+) input 1.55

6 Unit 2 (-) input 1.56

7 Unit 2 output 1.38

8 Vcc 4.96

1. All voltages are measured with a high-impedance digital voltmeter and expressed in volts DC relative to ground (0 V).

2. Voltages are measured with a DC input voltage of 7.50 + .02 volts DC applied to the battery connector (J301).

3. All voltages are measured in the squelched receive mode, unless otherwise indicated.

4. Voltages are identical for VHF and UHF models unless otherwise indicated.

June, 2005 6880309N62-C

VHF (136-162 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486769Z02-A) 7-5

Chapter 7 VHF (136-162 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486769Z02-A)

USWB+

5V 3V5R

5T

USWB+

5T

5V

5T

USWB+

CONTROLLER

3V

5R

TX_ENA

PWR_SET

DEMOD

BW_SEL

RSSI

MOD_OUT

16_8_MHZ

SYNTH_CS

SPI_CLK

SPI_DATA_OUT

LOCK

MOD_IN

16_8_MHZ

SYNTH_CS

SYNTH_VHF_R1

SPI_CLK

SPI_DATA_OUT

LOCK

3V

5V

3V

5V

DEMOD

BW_SEL

RSSI

PRESC

V_STEER

V_SF

VCO_MOD

TRB

5V 5R

5V

RX_BE

IF_IN

PRESC

V_STEER

V_SF

VCO_VHF_R1

VCO_MOD

TRB

5R

IF_OUT RX_IN

RX_FE_VHF_R1

3V5R

3V

RX_INJ

TX_INJ

5R

RX_INJ

TX_ENA

PWR_SET

RX_OUT

5T

USWB+

TX_VHF_R1

TX_INJ

Figure 7-3. VHF (136-162 MHz) Radio Circuit Block Interconnect Diagram (8486769Z02-A)

6880309N62-C June, 2005

7-6 VHF (136-162 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486769Z02-A)

5.0V (Rx)

R22

6.8K

C23

1000pF

125 mV (RF)

C24 NU

0V (Tx)

2.0V (Rx)

0.74V (Rx)

C99

0.1uF

R24 750

R25

5.6K

C26

R21

1000pF

100

3.95V (Rx)

R51

L51 150nH

51

IO3

3

C25

L22

1000pF

100nH

3.9V (Rx) 700mV (RF)

L41 68nH

L32 68nH

C34 68pF

C35 33pF

C43 15pF

C44 20pF

L33 68nH

485mV (RF)

C36 30pF

445mV (RF)

4

6

RF BALUN

T41

4

6

IF BALUN

T42

R40 1K

1

TP1

3

2

1

5

NC

3

2

1

5

NC

C30 30pF

C31 36pF

C29 10pF

3

1

2

Q21 BFS540

705mV (RF)

RX_INJ

FE_RF_INJ

C40 20pF

L31 68nH

C41 15pF

C32 68pF

L40 68nH

C33 27pF

C42 36pF

L52 560nH

C51 82pF

IO1

IO2

1

2

500mV (RF)

FE_IF_OUT

IO4

4

CR41

HSMS2829

IF_OUT

RX_IN

128 mV (RF)

FE_RF_IN

5R

FE_5R

R20

6.8K 1%

3.95V (Rx)

Q22

14

UMT1

25

63

3.38V (Rx)

C20

1000pF

C4

C2 43pF

C1 27pF

L1 68nH

18pF

C3 47pF

C5

3.3pF

L2 68nH

C6 22pF

L3 68nH

L4 68nH

C7 33pF

C8

R26

30pF

0

132

CR1 MMBD352

C9

NU

R23 22K

C22 1000pF

L21 NU

TP2

1

SH1

SHIELD

1

SH40

SHIELD

1

Figure 7-4. VHF (136-162 MHz) Receiver Front End Schematic Diagram (8486769Z02-A)

June, 2005 6880309N62-C

VHF (136-162 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486769Z02-A) 7-7

RX Back End (Overtone)

7

1

BW_SE L

5V

IF_IN

IF_BAND_SEL

U52-4

PWR_GND

IF_5

IF_IN

R90

51

2.4K

C61

47pF

R57

4.7K

C82

36pF

1%

R60

C81

33pF

1%

C68

0.1uF

3

C91

10uF

R81

1K

R82

NU

D51

2

1

C62

0.1uF

C92

0.1uF

R80

5.1K

TSS2_44_395MHZ

3

R65 39K

R63 39K

C64

0.1uF

6

VCC

C80

22pF

1%

Y51

44.395MHz

OUT IN

GND

GND1

4

U52-1

TC7W04F

5V

R61

100K

5V for 25kHz 0V for 12.5kHz

5V

8

VCC

GND

4

5V

V

C52

22pF

C53

9.1pF

1.1%

U52-3

TC7W04F

35

FL51

MXF45

44.85MHz

IN

3

2

CC1

5

CC2

GND1

1

SH50

OUT

6

SHIELD

1

C93

3.6pF NU

L53

120pF

NC

GND2

4

R91

1.6K

R52 12K

SHIELD

C55

0.1uF

SH52

1

3.39V

C56

0.1uF

R53

33K

R54

5.1K

0.74V

PBR941

1

Q51

3

2

R55

330

3.05V

TC7W04F

6

C57

0.1uF

1

U52-2

CR51

3

2

C58

3.9pF

2.7pF

C69

0.1uF

FL52 FLTR

9180468V04

IN1OU T

3

C90

0.1uF

C59

1.2uH

0.1uF

GND

L54

2%

C60

R62

3.3K

5V

L81

1uH

2

1

C65

19

20

MIXOUT

RFIN

RFIN_DEC

2

1

2

FL53

CFWC455E

IN

OUT

GND1

3

FL54

CFWC455G

IN2OUT

GND1

3

18

16

17

IFAMPIN

IFAMPOUT

IFAMP_DEC1

IFAMP_DEC2

U5

SA616

OSCIN

OSCOUT

5

4

3

1

R76

12K

GND2

14

1

RSSIOUT

1%

4

13

LIMIN

7

2

R64 20K

C66

0.1uF

11

12

LIMOUT

LIM_DEC1

LIM_DEC2

GND

RSSI_FEED

AUDIOOUT

AUDIO_FEED

9

8

R77

8.2K 1%

R66 20K

QUADIN

10

R75

12K

1

2

0.1uF

C67

0.1uF

15

D52

3

C63

5V

1

C70

130pF

2.1V When -47 dBm @ antenna

C73

4700pF

R78

680

R73

1.8K

R67 20K

R72 390

3

Q70

MMBT3904

2

1.2K

45B02

455KHz

1.5V

R74

Y70

C74

47pF

21

C71

3

0.1uF

IF_RSSI

C72

0.1uF

IF_DEMOD

RSSI

DEMOD

Figure 7-5. VHF (136-162 MHz) Receiver Back End Schematic Diagram (8486769Z02-A)

6880309N62-C June, 2005

7-8 VHF (136-162 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486769Z02-A)

PRESC

SPI_DATA_OUT

MOD_IN

SYNTH_CS

FN_PRESC

FN_DATA

FN_MOD

FN_SYNTH_CS

SPI_CLK

Reference Oscillator

C201

C202

C203

C206

R202

R206

D201

Y201

Y202

Crystal

220pF

62pF

2.7pF

NU

150k

NU

1SV232

14R06 NU

NU

TCXO

NU

0.01uF

47k

100

NU

45J68

FN_CLK

C203

2.7pF

3.7%

V_SF

4.5V

C204 470pF

107 mV (RF)

C293

470pF

FN_LOCK

R205

LOCK

LOCK: 3V UNLOCK: 0V

NC

C244 1200pF

FN_V_STEER

R245

1.5K

C243

0.1uF

FN_VCO_MOD

100

FN_16_8

C205

NU

VCO_MOD

R220

150

R221 150

16_8_MHZ

C220 22pF

3V

C221 .01uF

C222 .01uF

0V

3V

0V

C223 .01uF

C224 .01uF

R243

1.8K

R244 51

TP240

1

C245 1uF

3

K3

2

K2

1

K1

4

A3

5

A2

6

A1

D220

3

NC

K3

2

K2

1

K1

4

A3

5

A2

6

A1

3.0V to 8.0V

R223

100

C218

2.2uF

V_STEER

C219

0.1uF

D221

R227 150K

C228

0.1uF

C227 1000pF

C226 10uF

C225 10uF

FN_V_SF

TP200

1

16.8MHz

1SV232

D201

C233

4.7uF

R246 100K

4

VCC

VCON

GND

2

2.4 V (TYP)

R202 150K

1

C232

C231 1000pF

C211

0.1uF

TX: 3V RX: 0V

0.1uF

TRB

5V

R230 110K

C241 1200pF

R248 51

C230

2.2uF

C208

C207 470pF

470pF

C209 470pF

R247 160K

C210 470pF

NC3

NC2

NC1

CCOMP

REFSEL

PREIN

SFBASE

SFCAP

BIAS2

BIAS1

VBPASS

PVREF

SFIN

DATA

MODIN

CEX

CLK

5

DGND

PRE_VDD

PD_VDD

34

22

U201

20

AGND

63A27

AVDD

36

31

NC

29

NC

17

NC

42

NC

18

NC

32

27

NC

26

39

40

21

NC

35

NC

30

7

10

9

8

PD_GND

PRE_GND

ADAPTSW

VRO

DVDD

47

13

WARP

INDMULT

SFOUT

LOCK

IADAPT

IOUT

TEST2

TEST1

AUX4

AUX3

AUX2

AUX1

VMULT4

VMULT3

VMULT2

VMULT1

MODOUT

FREFOUT

XTAL2

XTAL1

VCP

25

16

NC

28

46

NC

4

45

43

38

NC

37

NC

3

NC

2

1

NC

44 mV (RF)

FN_TRB

C201 220pF

48

11

12

14

15

41

19

24

23

C202 62pF

1%

33

44

6

205 mV (RF)

3

IN

R206 NU

1

Y201

14R06

Y202

45J68

NU

OUT

3V

FN_3V

L211 560nH

C212

2.2uF

C213

.01uF

C214

1000pF

C206 NU

16.8MHz

3

OUT

GND2GND1

4

5V

SH200

SHIELD

5V

SH201

SHIELD

FN_5V

C215

2.2uF

R212 0

C216

0.1uF

C217

1000pF

1

Figure 7-6. VHF (136-162 MHz) Synthesizer Schematic Diagram (8486769Z02-A)

June, 2005 6880309N62-C

VHF (136-162 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486769Z02-A) 7-9

V_SF

V_STEER

3.0V to 8.0V

VCO_V_STEER

L251 560nH

C251 .01uF

L252

560nH

L262 560nH

D251

D261

100nH

L253

L263

100nH

V_SF

C253 16pF

C263 27pF 1%

VCO_MOD

4.5V

1%

C254 6pF

C264 10pF

L254 33nH

L264 47nH

VCO_MOD

VCO_VSF

R261

36K

C255 18pF 1%

C268

2.7pF

3.7%

C257 36pF 1%

L270 560nH

C270 1200pF

D262

1SV229

C271

.01uF

C256 10pF

1.0%

V_SF

R273 300

R270 18

C273

C258 1200pF

R264 220

R263 30

.01uF

R274

R254 220

R253 47

L255

330nH

C265 15pF 1%

R262

6.8K

33

C266 10pF

1.0%

C267 36pF 1%

L271 NU

L265

330nH

3V

R271

8.2K

C269 1500pF

VCO_3V

R272

9.1K

1

TX_IADJ

2

RX_IADJ

3

SUPER_FLTR

4

COLL_RFIN

5

RX_BASE

6

RX_EMITTER

16

TX_BASE

15

TX_EMITTER

20

FLIP_IN

19

TRB_IN

C272

0.1uF

14

VCC_BUFFERS

U251

GND_BUFFERS

GND_FLAG

9

11

1817

VCC_LOGIC

GND_LOGIC

50U54

TX_OUT

RX_OUT

PRESC_OUT

RX_SWITCH

TX_SWITCH

V_SF

C274

C285

0.1uF0.1uF

L282 47nH

10

8

12

7

NC

13

NC

R276

1K

C276

5.1pF

L276 100nH

206 mV (RF)

5R

C286 11pF

C277 1200pF

VCO_5R

L283

NU

R284 680

C284 1200pF

VCO_PRESC

C292 1200pF

R286 0

L292 68nH

L281 68nH

R281

9.1K

C290 51pF

PRESC

R280

6.8K

L291

27nH

C281 1200pF

1.89 V (Rx)

R282 750

1

R283 180

1200 mV (RF)

VCO_TX_INJ

C291 43pF

3

Q280 BFS540

2

C282

9.1pF

C283 1200pF

TX_INJ

850 mV (RF)

VCO_RX_INJ

1.35 V (Rx)

RX_INJ

SH250

SHIELD

1

SH251

SHIELD

1

SH253

SHIELD

1

TRB

TX: 3V RX: 0V

VCO_TRB

R275

0

C275 1200pF

Figure 7-7. VHF (136-162 MHz) Volt age Co ntrolled Oscillator Schematic Diagram (8486769Z02-A)

6880309N62-C June, 2005

7-10 VHF (136-162 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486769Z02-A)

TX_INJ

TX_ENA

820 mV (RF)

PA_TX_INJ

R100

300

0 V (Rx)

PA_TX_ENA

1.8V (Tx)

5T

R101 18

R158

1.5K

1

R111 NU

7.5 V

C170

0.1uF

64

5

1

23

C172

1500pF

Q150

3

2

R156 330

2.5 V (Low)

3.0 V (Hi)

VR110

4.3V

0 V (Rx)

7.3 V (Tx)

1

C153

0.47uF

7

C157

0.1uF

C154

R157

5.6K

C159 1500pF

1500pF

C112 1500pF

C155

0.1uF

8

2

3

4

U150-1

LM2904

R162 10K

C158 1500pF

L110 560nH

C110

0.1uF

2

L103 30nH

C106

1500pF

VGG

1

RFIN

1100 mV (RF)

C107 10pF

8

4

U150-2

LM2904

3

VDD

RFOUT

GND

5

U110 RA07M1317M_VHF

0 V (Rx)

7.25 V (Tx)

C151 1500pF

6

5

C152 1500pF

C113 1500pF

DO NOT MEASURE

4

C117 1000pF

C150 1500pF

C115 1uF

D120 MA4PH261

0 V (Rx)

0.9 V (Tx)

R152 100K

1% R153 100K 1%

R154

100K

1% R155 100K 1%

C116

0.1uF

C131 10pF

C130 15pF

L121 47nH

C122

15pF

D121

MA4PH261

R151 22

L130

43.67nH

C132 15pF

U151

57R01

R150

0.1

L120

560nH

C133

2.4pF

L131

43.67nH

C123 20pF

C134 13pF

C124 1500pF

R120 150

R121 150

PA_RX_OUT

C135 10pF

L132

43.67nH

C136

6.2pF

C120 1500pF

C121 1500pF

0 V (Rx)

1.6 V (Tx)

RX_OUT

C137 200pF

C140 16pF

C141

22pF

NC

L140

30.54nH

S1

S2

G1

G2

T1

T2

M140 ANTENNA_NUT

1

TAB1

2

TAB2

J140

TAB3

TAB4

3

NC

4

NC

USWB+

R171

6.8K

R524 10K

3

1

Q171 MMBT3904

2

PA_USWB+

7.4 V (Rx)

0.15 V (Tx)

2.5 V (Low)

Q170 EMB10

C156 .01uF

3.0 V (Hi)

TP150

1

2.4 V (Hi)

1.06 V (Low)

L100

560nH

3

2

R104 51

Q100 BFS540

PA_PWR_SET

1500 mV (RF)

4.9 V (Tx)

C101

1500pF

C111 NU

R110 360

C105 NU

C108

0.1uF

PA_5T

C100 1500pF

R102 300

C109

0.1uF

C104 NU

C103 1500pF

L102 100nH

C114 1500pF

C171

2.7pF

R106

4.7K

L101 560nH

PWR_SET

R105

1.2K

R103

3.3K

C102

0.1uF

R107 150

1.5 V (Tx)

1

SH100

SHIELD

1

Figure 7-8. VHF (136-162 MHz) Transmitter and Power Control Schematic Diagram (8486769Z02-A)

June, 2005 6880309N62-C

VHF (136-162 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486769Z02-A) 7-11

3V

SW_B+

5V

3V

5V

VOX

SW_B+

AUDIO

LSIO

HSIO

EXT_MIC_PTT

BOOT_ENA

F1200

uP_CLK

ASFIC_CS

RESET

SCI

PWR_SET

DEMOD

BW_SEL

MOD_OUT

16_8_MHZ

BATT_CHARGE

TP403

TP404

CNTL_PWR_SET

CNTL_DEMOD

CNTL_BW_SEL

CNTL_MOD_OUT

CNTL_16_8_MHZ

CNTL_SPI_CLK

CNTL_SPI_DATA_OUT

CNTL_SYNTH_CS

CNTL_LOCK

CNTL_RSSI

CNTL_TX_ENA

PWR_SET

DEMOD

BW_SEL

MOD_OUT

16_8_MHZ

SPI_CLK

SPI_DATA_OUT

SYNTH_CS

LOCK

RSSI

TX_ENA

SW_B+

C503 1000pF

D3_3V

28

27

25

26

24

23

22

21

20

19

17

18

1516

13

14

11

12

10

9

8

7

6

5

3

4

1

2

29

30

31

32

J460-1

ACCESSORY/KEYPAD CONNECTOR

C405 100pF

C406 100pF

C500 1000pF

3V

E500 BK1005HM471

C501 1uF

OPT_MIC

OPT_TX_AUD_FLAT_RETURN

OPT_TX_AUD_RETURN

OPT_TX_AUD_SEND

OPT_RX_AUD_SEND_DETECTOR

OPT_RX_AUD_SEND_UNMUTED

OPT_RX_AUD_RETURN

VS_AUDIO_SEL

VS_GAIN_SEL

SPI_CLK

SPI_DATA_OUT

SQ_DET

CH_ACT

R502

R504 100

R505 100

100

R501 100

C505

1000pF

C403

C504

100pF

1000pF

C402

C506

C507

1000pF

1000pF 1000pF

C408 1000pF

C409

1000pF

R503 100

SW_B+

D3_3V

3VD3_3V

5T

5V

5R

SW_B+

3V

SPI_CLK

SPI_DATA_IN

SPI_DATA_OUT

SQ_DET

CH_ACT

VOX

LSIO

HSIO

BOOT_ENA

EXT_MIC_PTT

F1200

uP_CLK

MICROPROCESSOR

ASFIC_CS

RESET

SCI

BATT_DETECT

SYNTH_CS

LOCK

RSSI

TX_ENA

RX_ENA

VOLUME

ON_OFF

USWB+

TP301

SWB+

USWB+

RESET

BATT_CHARGE

RX_ENA

DC_REGULATION

VOLUME

ON_OFF

TX_ENA

5V

3V

D3_3V

CNTL_USWB+

CNTL_5V

CNTL_5R

CNTL_5T

CNTL_3V

3V

5T

5R

D3_3V

USWB+

5V

5R

5T

3V

5V

VS_RAC

OPT_DATA_READY

BACKLIGHT

KEYPAD_ROW

KEYPAD_COL

NC

DISPL_COM_DATA_SEL

DISP_ENA

OPT_ENA

VS_CS

VS_INT

C404

C407

1000pF

1

3

1

3

1

3

A1

A2

S441 SWITCH

A1

A2

S442 SWITCH

A1

A2

S443 SWITCH

2

B1

4

B2

2

B1

4

B2

S440 SWITCH

2

B1

4

B2

1

PC0

2

PC1

4

8

PC2

PC3

C0

C1

GND7GND1

9

PTT

OPT_BUTTON_1

OPT_BUTTON_2

FREQ_SEL_0

FREQ_SEL_1

FREQ_SEL_2

FREQ_SEL_3

Figure 7-9. VHF (136-162 MHz) Controller Interconnect Schematic Diagram (8486769Z02-A)

6880309N62-C June, 2005

7-12 VHF (136-162 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486769Z02-A)

D3_3V

SH400 SHIELD

R416 20K

1

D3_3V

R410 10K

D3_3V

C411

C410

0.1uF

10uF

C412 1000pF

R412 100K

6

1

3

7

5

U402 X25128-2.7

8

SCK

VCC

CS

2

SO

WP

HOLD

SI

VSS

4

EEPROM

TP402

C413

0.1uF

SPI_DATA_IN

SPI_DATA_OUT

SPI_CLK

C400

R400

NU

DISPL_COM_DATA_SEL

ASFIC_CS

SYNTH_CS

SW_B+

3

30 32 7

9

20 19 18 17 16 15 14 13 3 2 31 1 12 4 5 11 10

C431 1000pF

2

Q403

R446 10K

1

R445

4.7K

A(0)

A(1)

A(2)

A(3)

A(4)

A(5)

A(6)

A(7)

A(8)

A(9)

A(10)

A(11)

A(12)

A(13)

A(14)

A(15)

A(16)

R432 0

A(17)

A(18)

R434 NU

BACKLIGHT

ON_OFF

DISP_ENA

D3_3V

C430

0.1uF

U404

AT49LV001N_70VI

D(0)

D(1)

D(2)

D(3)

D(4)

D(5)

D(6)

D3_3V

D(7)

R431 NU

SH401

SHIELD

1

R433 100K

FLASH

8

VCC EN_CE

EN_OE

EN_WE

RESET

21

D0

22

D1

A0

23

D2

A1

25

D3

A2

26

D4

A3

27

D5

A4

28

D6

A5

29

A6

D7

A7

6

NC

A8

A9 A10 A11 A12 A13 A14 A15 A16

GND

24

NU

2

97

98

99

100

1

3

6

NC

PG0_XA13

16

PG1_XA14

A(14)

20

PG2_XA15

A(15)

19

PG3_XA16

A(16)

17

PG4_XA17

A(17)

18

PG5_XA18

A(18)

5

NC

PG6_AS

47

3

Q402

1

2

PH0_PW1

46

PH1_PW2

45

PH2_PW3

44

PH3_PW4

43

PH4_CSIO

42

PH5_CSGP1

41

PH6_CSGP2

38

PH7_CSPROG

30

PC0_DATA0

D(0)

31

PC1_DATA1

D(1)

32

PC2_DATA2

D(2)

33

PC3_DATA3

D(3)

34

PC4_DATA4

D(4)

35

PC5_DATA5

D(5)

36

PC6_DATA6

D(6)

37

PC7_DATA7

D(7)

D(7:0)

A(18:0)

PD6_LVIN

PD5_SS

PD4_SCK

A(7)

PD3_MOSI

A(6)

PD1_TXD

PD2_MISO

A(5)

PD0_RXD

A(4)

86

A(2)

A(3)

84

85

PA7_PA1_OC1

PA5_OC3_OC1

PA6_OC2_OC1

PF1_ADDR127PF2_ADDR226PF3_ADDR325PF4_ADDR424PF5_ADDR523PF6_ADDR622PF7_ADDR729PFO_ADDR0

28

A(0)

A(1)

82

83

PA4_OC4_OC1

PA3_IC4_OC5_OC1

NC

D3_3V

C432

0.1uF

R430 100K

11

D(0)

12

D(1)

13

D(2)

15

D(3)

16

D(4)

17

D(5)

18

D(6)

19

D(7)

U403 NU

SRAM

C433 1000pF

28

10

A(0)

A0

9

VDD

A(1)

A1

8

A(2)

A2

7

A(3)

A3

6

A(4)

A4

5

A(5)

A5

4

D1 D2 D3 D4 D5 D6 D7 D8

A(6)

A6

3

A(7)

A7

25

A(8)

A8

24

A(9)

A9

21

A(10)

A10

23

A(11)

A11

2

A(12)

A12

26

A(13)

A13

1

A(14)

A14

20

CS

22

OE

27

WE

VSS

14

5V

Q440-2

RED LED

1

Q440-1

4

6

2

3

R442

R443

220

120

GREEN LED

D440 BRPY1204W

TP405

1

2

3

79

PA0_IC380PA1_IC281PA2_IC1

U401

MC68HC11FL0

PB3_ADDR1121PB4_ADDR1215PB5_ADDR138PB6_ADDR147PB7_ADDR15

9

A(11)

A(12)

A(13)

5

R417 10K

6

4

Q410

C418

0.1uF

C419 1000pF

SCI

R401

300K

C425 1uF

R411 820

R419

4.7K

1

TP401

LSIO

CH_ACT

SQ_DET

D3_3V

NC

Q425

R402 10K

R403 10K

C426 1uF

D3_3V

D425

R406 220K

Q426

100K

R407

D3_3V

U425

4

2

LMC7101BI 1

3

R405

300K

R404 51K

5

D3_3V

R408 100K

Q427

P13

R409 18K

HSIO

OPT_DATA_READY

uP_CLK

D3_3V

R418 100K

C414

0.1uF

NC

68

PBO_ADDR8

14

A(8)

NC

12

39

88

92

69

95

93

VRL

XFC

VDD

VRH

VDDSYN

LVOUT

56

PI055PI154PI253PI352PI451PI550PI649PI7

VDDL

VDDR

MODB_VSTBY

PJ0_CSGP3

PJ1_CSGP4

VSS

13

NC

90

91

XTAL

EXTAL

PB1_ADDR911PB2_ADDR10

10

A(9)

A(10)

R440

4.7K

R441

4.7K

59

AVDD

ECLK

PG7_R_W

MODA_LIR

PE0_AN0

PE1_AN1

PE2_AN2

PE3_AN3

PE4_AN4

PE5_AN5

PE6_AN6

PE7_AN7

RESET

40

C415 1000pF

89

NC

96

IRQ

48

XIRQ

94

4

58

57

71

72

73

PJ2

74

PJ3

75

PJ4

76

PJ5

77

PJ6

78

PJ7

67

66

65

64

VS_RAC

63

62

61

60

AVSS

VSSL87VSSR

70

C416

1000pF

R413 100K

P13

RSSI

D3_3V

R422

100K

R423

100K

VOX

KEYPAD_COL

KEYPAD_ROW

LOCK

R415 33K

NC

D414

C445C446

.01uF

R420 200K 1%

C420

R421

.01uF

100K 1%

C422

.01uF

C421 .01uF

R414 33K

SW_B+

R425 100K 1%

C440

.01uF

C447

0.1uF

D424

RB520S-30

C417 1000pF

C441 .01uF

VOLUME

R424 200K 1%

C442

.01uF

SW_B+

3V

BATT_DETECT

F1200

RESET

BOOT_ENA

PTT

EXT_MIC_PTT

FREQ_SEL_0

FREQ_SEL_1

FREQ_SEL_2

FREQ_SEL_3

OPT_BUTTON_1

OPT_BUTTON_2

C401

C443

.01uF

0.1uF

C444

.01uF

VS_INT

VS_CS

OPT_ENA

TX_ENA

RX_ENA

Figure 7-10. VHF (136-162 MHz) Microprocessor Circuitry Schematic Diagram (8486769Z02-A)

June, 2005 6880309N62-C

VHF (136-162 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486769Z02-A) 7-13

R513

Not Placed

R515

Not Placed 0

R516

Not Placed

R517 0

DEMOD

VHF UHF

100k

Not Placed

150 mV RMS (25 kHz) (Rx)

75 mv RMS (12.5 kHz) (Rx)

R516

C512

6.8pF

R511 100K

5V_A

R518 220K

R519 100K

C511 220pF

C519 1uF

2

3

U510-1 LM2904

2.3 V

VS_AUDIO_SEL

VS_GAIN_SEL

PWR_SET

NU

R512 150K

8

R513

1

4

C513 220pF

VOX

BW_SEL

CH_ACT

SQ_DET

LSIO

HSIO

ASFIC_CS

SPI_CLK

SPI_DATA_OUT

C514 16pF

6

5

U510-2 LM2904

R514 100K

8

R515

7

4

5V_A

C518

0.1uF

C460

0.1uF

1

5

6

Q520-1

IMX1

R521

R517

3V_A

C451

0.1uF

3V

C452

0.1uF

C453

5V_A

4.7uF

C455 .022uF

11

7

8

9

10

12

UIO

VOX

SQIN

PLCAP

SQCAP

13

VDDDAC

GCB2

14

GCB1

15

GCB0

16

CHACT

17

SQDET

18

LSIO

30C53

19

20

21

22

23

24

C457

C456

0.1uF

R451

3V_A

3V

E451

BK1005HM471

47K

5V_B

5V

E452

5V

BK1005HM471

HSIO

CSX

CLK

DATA

GNDSYN

LCAP

C459

0.1uF

C458

0.1uF

E453

BK1005HM471

25

PLCAP2

U451

VDDSYN

NC

F1200

SYN

27

26

29

28

NC

5V_A

C454

0.1uF

1

3

6

5

2

DISC

VDDA

DACR4DACU

GNDA

DACG

GNDD30GNDDO

31

48

NC

MICEXT

47

GNDRC

46

MICINT

45

VDDRC

44

TXSND

43

RXRTN

42

AUXTN

41

AUDIO

40

MOD

39

RXSND

38

NC

GCB5

37

GCB4

VDDD

GCB3

CLK168

TXRTN

VDDCP

33

35

34

36

32

114 mV (RF)

F1200

uP_CLK

C497

0.1uF

R522 100K

R520 100K

3V_A

R460 24K

R462 24K

3V_A

Not_Placed:NU

Q481

Not_Placed:NU

R523 10K

4

2

3

Q520-2

IMX1

OPT_RX_AUD_SEND_DETECTOR

OPT_RX_AUD_RETURN

OPT_RX_AUD_SEND_UNMUTED

OPT_TX_AUD_FLAT_RETURN

OPT_TX_AUD_SEND

OPT_TX_AUD_RETURN

R474 330

R491

0

R490

2.2K

Not_Placed:NU

R495

5.6K

1.5 V

25

R476 100K

C472

0.1uF

0 V (Rx)

3 V (Tx)

SW_B+16_8_MHZ

C493 1000pF

C499 82pF

R493 330K

R492

24K

C498 1uF

1

4

3

6

0.15 V (UNSQ)

Q470

R479 100K

R494

330K

C470

0.1uF

R475 180K

R477

2.2K

C474 150pF

EXT_MIC_PTT

C494

2.2uF

DC Level 0.3 - 0.4 V low Supply = 7.42 1/2 Supply = 3.22

C479

150pF

C492 10uF

7.5 V

1

3

2

4

D471

L471 390nH

VR473

MMBZ5250B

20V

C473 150pF

VR475

MMBZ5245B

15V

6

MODE

VCC

INPOS

OUTNEG

OUTPOS

SVR

INNEG

GND

7

U490 TDA8541

R498

C495 1uF

C461

4.7uF

3V

C463

C462

0.1uF

R464 30K

C464

0.1uF

R463 24K

1.5 V

5V_B

R481

R482

C481 .01uF

C482

2

3

1

R486

2

3

R483

1

5V_B

2

3

Q490

R488

UMG5

330K

C490 470pF

C465 1000pF

C467 1200pF

C471

2.2uF

200 mV RMS

MOD_OUT

A_MOD_OUT

C466 NU

145 mV RMS

R487

R484

2.2K

Not_Placed:NU

Q482

1

0

C484 .033uF

Not_Placed:NU

3

2

1

2

3

C483

0.1uF

6

4

U511

UMG5

5V_B

8

1

U480-1

4

R485

6

4

3 V (UNSQ)

R470

2.2K

VR471

NC

VR472

NC

5V

R255

3.9K

1%

D470

R478

2.2K

R472 680

2

R471

2.2K

BATT_CHARGE

NC

C475 .022uF

C476 .022uF

C478 150pF

3V_A

R480 0

1

4

3

6

C477

0.1uF

SCI

R473 680

5

Q472

1

2

3

10 mV RMS (Tx)

VR474

MMBZ5250B

20V

1

2

J470-1

MICROPHONE CONNECTOR

RESET

6

BOOT_ENA

4

Q471

OPT_MIC

S2

4

S4

5

S3

6

S1

7

NC

M2

2

M3

3

M1

1

J471

ACCESSORY CONNECTOR

1

2

J491-1

INTERNAL SPEAKER

3

J491-3

J491-44

3.5V (UNSQ)

C488 470pF

C480

R469

0.1uF

R497

U480-2

3.5V (UNSQ)

6

5

10

R496 10K

Not_Placed:NU

5V_B

R499

C496 1uF

R489

5

8

C489 470pF

8

7

4

D491

NC

3.46 V RMS (Rx)(0.5 W@24 OHMS

Figure 7-11. VHF (136-162 MHz) Audio Circuitry Schematic Diagram (8486769Z02-A)

6880309N62-C June, 2005

7-14 VHF (136-162 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486769Z02-A)

BATT_CHARGE

POS NEG

DATA

J301

C302

390pF

VOLUME

ON_OFF

F301

C305 100pF

3A

R506 100

R507 100

D3_3V

C306 .01uF

3

2

1

C301

390pF

HIGH

LOW

TAB16TAB2

3.3 V (ON) 0 V (OFF)

7

7.5 V

NC

VR302 MMBZ5250B

20V

S444 SWITCH

4

5

NC

7.5 V (ON) 0 V (OFF)

R510 330K

VR301

MMBZ5250B

20V

SWB+

1

2

3

D301

Q494

R508 100K

6

4

2

0 V (ON)

7.5 V (OFF)

USWB+

C303 33uF

1

Q493

U310

1

2

GND

OUTPUT

ERROR

FEEDBACK

TK71750S

5

R313

5.1K

5

2

D3_3V

0 V (Rx)

3.3 V (Tx)

7

C311 .018uF

3.3 V (Rx) 0 V (Tx)

R312 20K

C320 .018uF

1

VIN VOUT

3

CTRL

4

BYPASS

C304 .01uF

C310 .01uF

RX_ENA

TX_ENA

3

R509 100K

7.5 V (ON) 0 V (OFF)

NC

4

8

6 3

U320 LP2986

INPUT

SHUTDOWN

SENSE

TAP

C312 10uF

R322 100K

R320 330K 1%

5 V

3.3 V

Q313

C313 .01uF

C323 150pF

C321 10uF

5 V (Rx) 0 V (Tx)

D3_3V

C322 .01uF

C314 1200pF

0 V (Rx) 5 V (Tx)

R311 100K

3.3 V

R310 100K

Q312

C316 1200pF

C315 1200pF

RESET

D3_3V

Q311

0 V (Rx)

5 V (Tx)

5V

5R

5 V (Rx)

0 V (Tx)

5T

R321 200K 1%

TP302

1

VIN VOUT

3

CTRL

4

BYPASS

C331 .01uF

U330 TK71730S

5

GND

2

C334 10uF

C333 .01uF

3 V

3V

Figure 7-12. VHF (136-162 MHz) DC Regulation Schematic Diagram (8486769Z02-A)

June, 2005 6880309N62-C

VHF (136-162 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486769Z02-A) 7-15

R407

R445 R446

C500

C404

C409

C461

R462

R521

C408

C506

C503

E500

R473

Q403

C504

C407

R503

Q402

C402

C400

C460

C406

C501

R522

R470

Q472

C403

C505

R504

C507

R400

R472

R471

C477

R414

8

7

R480

C513

VR471

VR472

Q440

C410

C454

R442

U403

1

R514

R513

C470

D471

R443

C465

R463

R425

R424

C430 C431

21

22

C433

C432

C413

37

1

D424

C421

C422

32

SH401

1

R431

R410

C458

25

U451

13

C455

4

58

U402

1

17 16

U404

C418

R419

C412

R417

C419

C446

R401

Q427

R409

C209

C425

C204

C210

C218

L211

C245

C207

C208

Q425

C264

R223

C213

L265

L263

C219

D261

R402

C269

D262

R245

Q426

SH250

R247

37

C202

C258

L251

C293

25

C257

R261

L252

C244

C256

C255

C201

R254

C253

C212

R408

R403

R253

L254

L253

D251

C215

C241

C230

D425

R264

R263

C267

L264

C266

C265

R262

C263

C268

L262

C251

C243

R244

R243

R230

1

SH201

U201

13

C214

R220

R205

R221

C205

L255

R248

C217

C216

C232

C231

U425

R212

C233

C254

R404

R406

R405

C426

SH1

CR1

3

4

L4

C6

C7

L3

C303

43

FL54

2

C69

4

R63

U52

58

C282

R280

C286

R281

C281

R282

L283

C283

R283

C35

L33

C284

Q280

SH253

L281

L32

C33

C32

R286

C34

C36

R61

3

Y70

2

C91

C30

C25

L22

C29

R25

C31

L31

Q21

C92

C23

R24

R22

C22

C24

R26

C8

L21

C9

2

FL53

VR301

F301

3

J301

2

L1

C4

C5

L2

C305

C306

C2

C3

C1

D301

C301

C476

C478

J470

C302

Q171

R171

R524

5 U110

6

5

D470

VR302

C473

L471

7

J471

4

VR473

3

C117

VR110

C112

C113

2

VR475

1

2

3

4

C480

C488

R496

R469

C489

E452

2C8

3

5

2

4

R483

4

1

U480

R489

58

4

S440

C

M140

J140

S444

R481

C482

R482

3

1

S443

4

2

3

1

S442

4

2

3

1

S441

4

2

Figure 7-13. VHF (136-162 MHz) Board Top Side View (8486769Z02-A)

6880309N62-C June, 2005

7-16 VHF (136-162 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486769Z02-A)

C20

C495

R499

2

R507

D440

R498

R23

C140

C141

L140

4

3

C496

R497

D491

4

Q494

3

Q493

C494

R508

R488

C493

Q490 4

R510

C137

C136

C490

3

R509

L132

C135

C481

U511

R494

C134

TP150

3

4

Q481

R495

VR474

C132

C131

L131

R490

C483

R484

L130

C498

R492

R491

R486

Q482

C133

C123

SH100

C110

R111

C107

C105

L103

1

C130

L121

D121

C124

C115

C116

L110

C106

C102

Q100

C479

U490

R487

C484

R110

L100

R485

R107

C122

C108

4

58

R120

C158

R162

R105

C101

D120

R493

C111

C114

L101

R104

C499

R106

L120

C156

C492

2

J491

4

C155

C109

C103

C474

R477

R121

R103

1

R158

U150

C171

L102

C159

R475

R474

58

C153

C121

Q470

R479

R150

C157

C154

C104

R476

U151

R154

R157

R156

C172

C100

R102

C150

R152

Q150

3

1

4 6

C472

R151

R101

R100

C152

R155

C151

Q170

C471

R478

R153

C170

C120

C475

R52

CR51

R54

C55

R53

C57

C56

R55

C58

C59

R91

C80

R80

4

Y51

3

R81

L81

R82

C82

C61

L53

6

Q51

C93

C90

C60

C81

C316

R90

R76

R77

R57

1

SH50 SH52

U51

20

C63

C65

C62

C64

R67

D51

R62

R60

2

FL52

R312

Q312

R311

C314

L54

2

R20

C26

C99

Q22

C53

2

FL51

5

C73

C72

R75

C71

R74

R78

10

11

C66

C67

D52

C74

3

R313

3

4

Q313

Q311

R310

R21

TP401

TP405

R206

C285

L292

R270

R321

C206

2

3

Y201

Y202

4

C211

R202

TP200

L291

C290

10

L282

R273

R271

R272

R274

L271

C321

C322

C52

3

4

C70

R73

Q70

R72

R65

C68

R66

R64

C333

C334

C331

C313

C311

C310

R255

C312

C315

U330

U310

R51

C44

R40

C42

C41

C40

TP404

SH40

L51

R322

4

3

6

C43

CR41

C323

R506

L52

C51

C304

T41

T42

L41

L40

6

3

4

U320

58

4

C203

D201

TP2

R246

TP1

R284

C292

L270

C274

C270

C273

C271

C320

R320

TP240

C291

1

SH251

U251

C222

C221

R276

11

20

C228

C220

R275

C275

C226

D221

L276

C272

D220

R227

C227

C277

C276

SH200

C223

C224

C225

E453

E451

R413

R430

C445

R502

R501

C416

C457

R412

C452

R411

C440

C441

C453

C451

C456

C411

C442

TP402

R416

R418

C497

R415

R433

R420

C420

SH400

R421

C459

R464

U401

C464

R422

R460

C417

R517

C462

C518

R432

R434

R423

TP301

R515

C512

R512

1

R441

C447

U510

C401

26

C511

51

C514

R440

TP302

31

32

2

J460

29

28

29

30

R505

Q471

C405

Q520

R520

3

4

TP403

R523

C467

R519

C519

4

58

R518

D414

Q410

3

4

1

76

C444

C414

C443

C415

R511

R516

C463

C466

R451

Figure 7-14. VHF (136-162 MHz) Board Bottom Side View (8486769Z02-A)

June, 2005 6880309N62-C

VHF (136-162 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486769Z02-A) 7-17

VHF (136-162 MHz) Radio Parts List (8486769Z02-A)

Circuit

Ref

C1 2109445U43 CAP, 27pF C2 2109445U48 CAP, 43pF C3 2109445U49 CAP, 47pF C4 2109445U39 CAP, 18pF C5 2109445U15 CAP, 3.3pF C6 2109445U41 CAP, 22pF C7 2109445U45 CAP, 33pF C8 2109445U44 CAP, 30pF C9 Not_Placed CAP, 24pF C20 2113743L17 CAP, 1000pF C22 2113743L17 CAP, 1000pF C23 2113743L17 CAP, 1000pF C24 Not_Placed CAP, 6.2pF C25 2113743L17 CAP, 1000pF C26 2113743L17 CAP, 1000pF C29 2109445U27 CAP, 10pF C30 2109445U44 CAP, 30pF C31 2109445U46 CAP, 36pF C32 2109445U53 CAP, 68pF C33 2109445U43 CAP, 27pF C34 2109445U53 CAP, 68pF C35 2109445U45 CAP, 33pF C36 2109445U44 CAP, 30pF C40 2109445U40 CAP, 20pF C41 2109445U37 CAP, 15pF C42 2109445U46 CAP, 36pF C43 2109445U37 CAP, 15pF C44 2109445U40 CAP, 20pF C51 2113743N48 CAP, 82pF C52 2109445U41 CAP, 22pF C53 2109445U26 CAP, 9.1pF C55 2113743M24 CAP, 0.1uF C56 2113743E20 CAP, 0.1uF C57 2113743M24 CAP, 0.1uF C58 2113743N16 CAP, 3.9pF C59 2113743N12 CAP, 2.7pF C60 2113743M24 CAP, 0.1uF C61 2113743N46 CAP, 68pF C62 2113743M24 CAP, 0.1uF C63 2113743M24 CAP, 0.1uF C64 2113743M24 CAP, 0.1uF C65 2113743M24 CAP, 0.1uF C66 2113743M24 CAP, 0.1uF C67 2113743M24 CAP, 0.1uF C68 2113743M24 CAP, 0.1uF C69 2113743M24 CAP, 0.1uF C70 2113743N53 CAP, 130pF C71 2113743E20 CAP, 0.1uF C72 2113743M24 CAP, 0.1uF C73 2113743L33 CAP, 4700pF

Motorola

Part No.

Description

Circuit

Ref

C74 2113743N42 CAP, 47pF C80 2109445U41 CAP, 22pF C81 2109445U45 CAP, 33pF C82 2109445U46 CAP, 36pF C90 2113743M24 CAP, 0.1uF C91 2311049A57 CAP, 10uF C92 2113743E20 CAP, 0.1uF C93 Not_Placed CAP, 3.6pF C99 2113743M24 CAP, 0.1uF C100 2113743L21 CAP, 1500pF C101 2113743L21 CAP, 1500pF C102 2113743M24 CAP, 0.1uF C103 2113743L21 CAP, 1500pF C104 Not_Placed CAP, 27pF C105 Not_Placed CAP, 10pF C106 2113743L21 CAP, 1500pF C107 2113743N26 CAP, 10pF C108 2113743M24 CAP, 0.1uF C109 2113743M24 CAP, 0.1uF C110 2113743M24 CAP, 0.1uF C111 Not_Placed CAP, 1500pF C112 2113743L21 CAP, 1500pF C113 2113743L21 CAP, 1500pF C114 2113743L21 CAP, 1500pF C115 2311049A07 CAP, 1uF C116 2113743M24 CAP, 0.1uF C117 2113741F25 CAP, 1000pF C120 2113743L21 CAP, 1500pF C121 2113743L21 CAP, 1500pF C122 2113740F31 CAP, 15pF C123 2113740F34 CAP, 20pF C124 2113743L21 CAP, 1500pF C130 2113740F31 CAP, 15pF C131 2113740F27 CAP, 10pF C132 2113740F31 CAP, 15pF C133 2113740F12 CAP, 2.4pF C134 2113740F30 CAP, 13pF C135 2113740F27 CAP, 10pF C136 2113740F22 CAP, 6.2pF C137 2113740F58 CAP, 200pF C140 2113740F32 CAP, 16pF C141 2113740F35 CAP, 22pF C150 2113743L21 CAP, 1500pF C151 2113743L21 CAP, 1500pF C152 2113743L21 CAP, 1500pF C153 2113743K18 CAP, 0.47uF C154 2113743L21 CAP, 1500pF C155 2113743E20 CAP, 0.1uF C156 2113743L41 CAP, .01uF C157 2113743M24 CAP, 0.1uF C158 2113743L21 CAP, 1500pF

Motorola

Part No.

Description

Circuit

Ref

C159 2113743L21 CAP, 1500pF C170 2113743M24 CAP, 0.1uF C171 2113743N12 CAP, 2.7pF C172 2113743L21 CAP, 1500pF C201 2113740F59 CAP, 220pF C202 2109445U52 CAP, 62pF C203 2109445U13 CAP, 2.7pF C204 2113743L09 CAP, 470pF C205 Not_Placed CAP, 2.7pF C206 Not_Placed CAP, 1000pF C207 2113743L09 CAP, 470pF C208 2113743L09 CAP, 470pF C209 2113743L09 CAP, 470pF C210 2113743L09 CAP, 470pF C211 2113743E20 CAP, 0.1uF C212 2113743F18 CAP, 2.2uF C213 2113743L41 CAP, .01uF C214 2113743L17 CAP, 1000pF C215 2113743F18 CAP, 2.2uF C216 2113743E20 CAP, 0.1uF C217 2113743L17 CAP, 1000pF C218 2113743F18 CAP, 2.2uF C219 2113743E20 CAP, 0.1uF C220 2113743N34 CAP, 22pF C221 2113743L41 CAP, .01uF C222 2113743L41 CAP, .01uF C223 2113743L41 CAP, .01uF C224 2113743L41 CAP, .01uF C225 2311049A57 CAP, 10uF C226 2311049A57 CAP, 10uF C227 2113743L17 CAP, 1000pF C228 2113743E20 CAP, 0.1uF C230 2113743F18 CAP, 2.2uF C231 2113743L17 CAP, 1000pF C232 2113743E20 CAP, 0.1uF C233 2311049A56 CAP, 4.7uF C241 2113743L19 CAP, 1200pF C243 2113741M69 CAP, 0.1uF C244 2113741F27 CAP, 1200pF C245 2311049A08 CAP, 1uF C251 2113741F49 CAP, .01uF C253 2109445U38 CAP, 16pF C254 2109445U30 CAP, 6pF C255 2109445U39 CAP, 18pF C256 2109445U27 CAP, 10pF C257 2109445U46 CAP, 36pF C258 2113743L19 CAP, 1200pF C263 2109445U43 CAP, 27pF C264 2109445U27 CAP, 10pF C265 2109445U37 CAP, 15pF C266 2109445U27 CAP, 10pF

Motorola

Part No.

Description

Circuit

Ref

C267 2109445U46 CAP, 36pF C268 2109445U13 CAP, 2.7pF C269 2113743L21 CAP, 1500pF C270 2113743L19 CAP, 1200pF C271 2113743L41 CAP, .01uF C272 2113743E20 CAP, 0.1uF C273 2113743L41 CAP, .01uF C274 2113743E20 CAP, 0.1uF C275 2113743L19 CAP, 1200pF C276 2113743N19 CAP, 5.1pF C277 2113743L19 CAP, 1200pF C281 2113743L19 CAP, 1200pF C282 2113743N25 CAP, 9.1pF C283 2113743L19 CAP, 1200pF C284 2113743L19 CAP, 1200pF C285 2113743E20 CAP, 0.1uF C286 2113743N27 CAP, 11pF C290 2113743N43 CAP, 51pF C291 2109445U48 CAP, 43pF C292 2113743L19 CAP, 1200pF C293 2113743L09 CAP, 470pF C301 2113743L07 CAP, 390pF C302 2113743L07 CAP, 390pF C303 2311049A97 CAP, 33uF C304 2113743L41 CAP, .01uF C305 2113743N50 CAP, 100pF C306 2113741F49 CAP, .01uF C310 2113743L41 CAP, .01uF C311 2113743E05 CAP, .018uF C312 2311049A57 CAP, 10uF C313 2113743L41 CAP, .01uF C314 2113743L19 CAP, 1200pF C315 2113743L19 CAP, 1200pF C316 2113743L19 CAP, 1200pF C320 2113743E05 CAP, .018uF C321 2311049A57 CAP, 10uF C322 2113743L41 CAP, .01uF C323 2113743N54 CAP, 150pF C331 2113743L41 CAP, .01uF C333 2113743L41 CAP, .01uF C334 2311049A57 CAP, 10uF C400 Not_Placed CAP, .022uF C401 2113743M24 CAP, 0.1uF C402 2113743L17 CAP, 1000pF C403 2113743N50 CAP, 100pF C404 2113743L17 CAP, 1000pF C405 2113743N50 CAP, 100pF C406 2113743N50 CAP, 100pF C407 2113743L17 CAP, 1000pF C408 2113743L17 CAP, 1000pF C409 2113743L17 CAP, 1000pF

Motorola

Part No.

Description

6880309N62-C June, 2005

7-18 VHF (136-162 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486769Z02-A)

Circuit

Ref

C410 2311049A57 CAP, 10uF C411 2113743M24 CAP, 0.1uF C412 2113743L17 CAP, 1000pF C413 2113743M24 CAP, 0.1uF C414 2113743M24 CAP, 0.1uF C415 2113743L17 CAP, 1000pF C416 2113743L17 CAP, 1000pF C417 2113743L17 CAP, 1000pF C418 2113743M24 CAP, 0.1uF C419 2113743L17 CAP, 1000pF C420 2113743L41 CAP, .01uF C421 2113743L41 CAP, .01uF C422 2113743L41 CAP, .01uF C425 2113743F16 CAP, 1.0uF C426 2311049A07 CAP, 1.0uF C430 2113743M24 CAP, 0.1uF C431 2113743L17 CAP, 1000pF C432 2113743M24 CAP, 0.1uF C433 2113743L17 CAP, 1000pF C440 2113743L41 CAP, .01uF C441 2113743L41 CAP, .01uF C442 2113743L41 CAP, .01uF C443 2113743L41 CAP, .01uF C444 2113743L41 CAP, .01uF C445 2113743L41 CAP, .01uF C446 2113743L41 CAP, .01uF C447 2113743M24 CAP, 0.1uF C451 2113743M24 CAP, 0.1uF C452 2113743E20 CAP, 0.1uF C453 2311049A56 CAP, 4.7uF C454 2113743E20 CAP, 0.1uF C455 2113743L48 CAP, .022uF C456 2113743E20 CAP, 0.1uF C457 2113743E20 CAP, 0.1uF C458 2113743E20 CAP, 0.1uF C459 2113743E20 CAP, 0.1uF C460 2113743E20 CAP, 0.1uF C461 2113928C04 CAP, 4.7uF C462 2113743E20 CAP, 0.1uF C463 2113743E20 CAP, 0.1uF C464 2113743E20 CAP, 0.1uF C465 2113743L17 CAP, 1000pF C466 Not_Placed CAP, 470pF C467 2113743L19 CAP, 1200pF C470 2113743E20 CAP, 0.1uF C471 2113743F18 CAP, 2.2uF C472 2113743E20 CAP, 0.1uF C473 2113743N54 CAP, 150pF C474 2113743N54 CAP, 150pF C475 2113743L48 CAP, .022uF C476 2113743L48 CAP, .022uF

Motorola

Part No.

Description

Circuit

Ref

C477 2113743M24 CAP, 0.1uF C478 2113743N54 CAP, 150pF C479 2113743N54 CAP, 150pF C480 2113743E20 CAP, 0.1uF C481 Not_Placed CAP, .01uF C482 Not_Placed CAP, .01uF C483 2113928H02 CAP, 0.22uF C484 Not_Placed CAP, .033uF C488 2113743L09 CAP, 470pF C489 2113743L09 CAP, 470pF C490 2113743L09 CAP, 470pF C492 2113928J08 CAP, 10uF C493 2113743L17 CAP, 1000pF C494 2113743F18 CAP, 2.2uF C495 2113743F16 CAP, 1uF C496 2113743F16 CAP, 1uF C497 2113743E20 CAP, 0.1uF C498 2113743F16 CAP, 1uF C499 2113743N40 CAP, 39pF C500 2113743L17 CAP, 1000pF C501 2113743F16 CAP, 1uF C503 2113743L17 CAP, 1000pF C504 2113743L17 CAP, 1000pF C505 2113743L17 CAP, 1000pF C506 2113743L17 CAP, 1000pF C507 2113743L17 CAP, 1000pF C511 2113740F59 CAP, 220pF C512 2113743N22 CAP, 6.8pF C513 2113740F59 CAP, 220pF C514 2113743N31 CAP, 16pF C518 2113743E20 CAP, 0.1uF C519 2113743F16 CAP, 1uF CR1 4813825A19 dual Schottky, MMBD352 CR41 4802246J04 quad ring diode, HSMS2829 CR51 4813825A19 dual Schottky, MMBD352 D51 4802245J97 dual silicon DAN235ETL D52 4802245J97 dual silicon DAN235ETL D120 4880973Z02 silicon PIN, MA4PH261 D121 4880973Z02 silicon PIN, MA4PH261 D201 4862824C03 varactor, 1SV232 D220 4802233J09 triple diode, IMN10 D221 4802233J09 triple diode, IMN10 D251 4805649Q13 dual varactor, 1SV228 D261 4805649Q13 dual varactor, 1SV228 D262 4862824C01 varactor, 1SV229 D301 4813833A19 silicon, reverse polarity,

D414 4805129M41 Schottky, MMBD501 D424 4809924D18 Schottky, RB520S-30 D425 4805129M41 SOT SMBD1022 RH29M19

Motorola

Part No.

Description

MBRM120ET3

LH

Circuit

Ref

D440 4805729G49 dual LED red/green,

D470 4809924D18 Schottky, RB520S-30 D471 4809924D18 Schottky, RB520S-30 D491 Not_Placed Schottky, MMBD501 E451 2480640Z01 bead, BK1005HM471 E452 2480640Z01 bead, BK1005HM471 E453 2480640Z01 bead, BK1005HM471 E500 2480640Z01 bead, BK1005HM471 F301 6580542Z01 fuse, 3 amp FL51 9186801Z01 OSC,XTAL,,44.85MHZ FL52 9180468V04 4-pole ceramic filter, 455 kHz,

FL53 9180469V05 6-pole ceramic, filter, 455 kHz,

FL54 9180469V03 6-pole ceramic filter, 455 kHz,

J140 0986428Z01 connector, external antenna J301 0986565Z01 battery contact assembly J460 Not_Placed CONN,ZIF,28 CONT TIN CBL J470 0985818A01 connector, 2-pin internal mic J471 0980683Z03 connector, 2.5 / 3.5mm,

J491 2809926G01 connector, 2-pin internal

L1 2413923C09 IDCTR, 68nH L2 2413923C09 IDCTR, 68nH L3 2413923C09 IDCTR, 68nH L4 2413923C09 IDCTR, 68nH L21 Not_Placed IDCTR, 39nH L22 2413926N24 IDCTR, 100nH L31 2413923C09 IDCTR, 68nH L32 2413923C09 IDCTR, 68nH L33 2413923C09 IDCTR, 68nH L40 2413923C09 IDCTR, 68nH L41 2413923C09 IDCTR, 68nH L51 2413926N26 IDCTR, 150nH L52 2462587V43 IDCTR, 560nH L53 2113743N52 CAP, 120pF L54 2413923A25 IDCTR, 1.2uH L81 2413923A19 IDCTR, 1uH L100 2413926K32 IDCTR, 560nH L101 2413926K32 IDCTR, 560nH L102 2409377M17 IDCTR, 100nH L103 2409377M31 IDCTR, 30nH L110 2413926K32 IDCTR, 560nH L120 2413926K32 IDCTR, 560nH L121 2462587N49 IDCTR, 47nH L130 2479990N01 IDCTR, 43.67nH L131 2479990N01 IDCTR, 43.67nH L132 2479990N01 IDCTR, 43.67nH

Motorola

Part No.

Description

BRPY1204W

CFU455F

CFWC455E

CFWC455G

accessories

speaker

Circuit

Ref

L140 2479990M01 IDCTR, 30.54nH L211 2413926K32 IDCTR, 560nH L251 2413926K32 IDCTR, 560nH L252 2413926K32 IDCTR, 560nH L253 2409377M17 IDCTR, 100nH L254 2413923C05 IDCTR, 33nH L255 2413926K29 IDCTR, 330nH L262 2413926K32 IDCTR, 560nH L263 2409377M17 IDCTR, 100nH L264 2413923C07 IDCTR, 47nH L265 2413926K29 IDCTR, 330nH L270 2413926K32 IDCTR, 560nH L271 Not_Placed IDCTR, 560nH L276 2413926N24 IDCTR, 100nH L281 2413926N22 IDCTR, 68nH L282 2413926N20 IDCTR, 47nH L283 Not_Placed IDCTR, 270nH L291 2413926N17 IDCTR, 27nH L292 2413926N22 IDCTR, 68nH L471 2413926K30 IDCTR, 390nH M140 0286427Z01 antenna nut Q21 4802245J95 silicon NPN, BFS540 Q22 4805723X02 dFcual silicon PNP, UMT1 Q51 4802197J95 silicon NPN, PBR941 Q70 4880214G02 silicon NPN, MMBT3904 Q100 4802245J95 silicon NPN, BFS540 Q150 4880214G02 silicon NPN, MMBT3904 Q170 4809939C34 dual silicon PNP, EMB10 Q171 4880214G02 silicon NPN, MMBT3904 Q280 4802245J95 silicon NPN, BFS540 Q311 4809579E18 P-channel MOSFET, TP0101T Q312 4809579E18 P-channel MOSFET, TP0101T Q313 4802245J54 dual digit NPN, UMG5 Q402 4880048M01 digital NPN, DTC144EKA Q403 4813824A17 silicon PNP, MMBT3906 Q410 4802245J54 dual digit NPN, UMG5 Q425 4809579E18 TSTR MOSFET P-CHAN

Q426 4809579E18 TSTR MOSFET P-CHAN

Q427 4809579E18 TSTR MOSFET P-CHAN

Q440 5180159R01 dual NPN, IMX1 Q470 4805723X02 dual silicon PNP, UMT1 Q471 4802245J54 dual digital NPN, UMG5 Q472 4805723X02 dual silicon PNP, UMT1 Q481 Not_Placed MMBT3906 Q482 Not_Placed MMBT3904 Q490 4802245J54 dual digital NPN, UMG5 Q493 4809579E18 P-channel MOSFET, TP0101T Q494 4802245J54 dual digital NPN, UMG5

Motorola

Part No.

Description

TP010IT

June, 2005 6880309N62-C

VHF (136-162 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486769Z02-A) 7-19

Circuit

Ref

Q520 5180159R01 dual NPN, IMX1 R20 0662057U97 RES, 6.8K R21 0662057M50 RES, 100 R22 0662057M94 RES, 6.8K R23 0662057V11 RES, 22K R24 0662057M71 RES, 750 R25 0662057M92 RES, 5.6K R26 0662057M01 RES, 0 R40 0662057M74 RES, 1K R51 0662057M43 RES, 51 R52 0662057N01 RES, 12K R53 0662057N11 RES, 33K R54 0662057M91 RES, 5.1K R55 0662057M62 RES, 330 R57 0662057M90 RES, 4.7K R60 0662057M83 RES, 2.4K R61 0662057N23 RES, 100K R62 0662057M86 RES, 3.3K R63 0662057N13 RES, 39K R64 0662057N06 RES, 20K R65 0662057N13 RES, 39K R66 0662057N06 RES, 20K R67 0662057N06 RES, 20K R72 0662057M64 RES, 390 R73 0662057M80 RES, 1.8K R74 0662057M76 RES, 1.2K R75 0662057N01 RES, 12K R76 0662057V04 RES, 12K R77 0662057U99 RES, 8.2K R78 0662057M70 RES, 680 R80 0662057M91 RES, 5.1K R81 0662057M74 RES, 1K R82 Not_Placed RES, 0 R90 0662057M43 RES, 51 R91 0662057M79 RES, 1.6K R100 0662057M61 RES, 300 R101 0662057M32 RES, 18 R102 0662057M61 RES, 300 R103 0662057M86 RES, 3.3K R104 0662057A18 RES, 51 R105 0662057M76 RES, 1.2K R106 0662057M90 RES, 4.7K R107 0662057M54 RES, 150 R110 0662057M63 RES, 360 R111 Not_Placed RES, 2.7K R120 0662057C55 RES, 150 R121 0662057C55 RES, 150 R150 0680539Z01 RES, 0.1 R151 0662057A09 RES, 22 R152 0662057V27 RES, 100K R153 0662057V27 RES, 100K

Motorola

Part No.

Description

Circuit

Ref

R154 0662057V27 RES, 100K R155 0662057V27 RES, 100K R156 0662057M62 RES, 330 R157 0662057M92 RES, 5.6K R158 0662057M78 RES, 1.5K R162 0662057M98 RES, 10K R171 0662057M94 RES, 6.8K R202 0662057N27 RES, 150K R205 0662057M50 RES, 100 R206 Not_Placed RES, 100 R212 0662057C01 RES, 0 R220 0662057M54 RES, 150 R221 0662057M54 RES, 150 R223 0662057M50 RES, 100 R227 0662057N27 RES, 150K R230 0662057N24 RES, 110K R243 0662057M80 RES, 180 R244 0662057M43 RES, 51 R245 0662057M78 RES, 1.5K R246 0662057N23 RES, 100K R247 0662057N28 RES, 160K R248 0662057M43 RES, 51 R253 0662057M42 RES, 47 R254 0662057M58 RES, 220 R255 0662057U91 RES, 3.9K R261 0662057N12 RES, 36K R262 0662057M94 RES, 6.8K R263 0662057M37 RES, 30 R264 0662057M58 RES, 220 R270 0662057M32 RES, 18 R271 0662057M96 RES, 8.2K R272 0662057M97 RES, 9.1K R273 0662057M61 RES, 300 R274 0662057M38 RES, 33 R275 0662057M01 RES, 0 R276 0662057M74 RES, 1K R280 0662057M94 RES, 6.8K R281 0662057M97 RES, 9.1K R282 0662057M71 RES, 750 R283 0662057M56 RES, 180 R284 0662057M70 RES, 680 R286 0662057M01 RES, 0 R310 0662057N23 RES, 100K R311 0662057N23 RES, 100K R312 0662057N06 RES, 20K R313 0662057M91 RES, 5.1K R320 0662057V43 RES, 330K R321 0662057V35 RES, 200K R322 0662057N23 RES, 100K R400 Not_Placed RES, 100K R401 0662057N34 RES, 300K

Motorola

Part No.

Description

Circuit

Ref

R402 0662057M98 RES, 10K R403 0662057M98 RES, 10K R404 0662057N16 RES, 51K R405 0662057N34 RES, 300K R406 0662057N31 RES, 220K R407 0662057N23 RES, 100K R408 0662057N23 RES, 100K R409 0662057N05 RES, 18K R410 0662057M98 RES, 10K R411 0662057M72 RES, 820 R412 0662057N23 RES, 100K R413 0662057N23 RES, 100K R414 0662057N11 RES, 33K R415 0662057N11 RES, 33K R416 0662057N06 RES, 20K R417 0662057M98 RES, 10K R418 0662057N23 RES, 100K R419 0662057M90 RES, 4.7K R420 0662057V35 RES, 200K R421 0662057V27 RES, 100K R422 0662057N23 RES, 100K R423 0662057N23 RES, 100K R424 0662057V35 RES, 200K R425 0662057V27 RES, 100K R430 0662057N23 RES, 100K R431 Not_Placed RES, 100K R432 0662057M01 RES, 0 R433 0662057N23 RES, 100K R434 Not_Placed RES, 100K R440 0662057M90 RES, 4.7K R441 0662057M90 RES, 4.7K R442 0662057A33 RES, 220 R443 0662057A27 RES, 120 R445 0662057M90 RES, 4.7K R446 0662057M98 RES, 10K R451 0662057N15 RES, 47K R460 0662057N08 RES, 24K R462 0662057N08 RES, 24K R463 0662057N08 RES, 24K R464 0662057N10 RES, 30K R469 0662057M26 RES, 10 R470 0662057M82 RES, 2.2K R471 0662057M82 RES, 2.2K R472 0662057M70 RES, 680 R473 0662057M70 RES, 680 R474 0662057A37 RES, 330 R475 0662057N29 RES, 180K R476 0662057N23 RES, 100K R477 0662057M82 RES, 2.2K R478 0662057M82 RES, 2.2K R479 0662057N23 RES, 100K

Motorola

Part No.

Description

Circuit

Ref

R480 0662057B47 RES, 0 R481 Not_Placed RES, 100K R482 Not_Placed RES, 330K R483 Not_Placed RES, 150K R484 Not_Placed RES, 2.2K R485 Not_Placed RES, 100K R486 Not_Placed RES, 100K R487 0662057M01 RES, 0 R488 0662057N35 RES, 330K R489 Not_Placed RES, 91K R490 Not_Placed RES, 2.2K R491 0662057M01 RES, 0 R492 0662057N08 RES, 24K R493 0662057N35 RES, 330K R494 0662057V43 RES, 330K R495 0662057M92 RES, 5.6K R496 Not_Placed RES, 10K R497 Not_Placed RES, 1MEG R498 Not_Placed RES, 47K R499 Not_Placed RES, 270K R501 0662057M50 RES, 100 R502 0662057M50 RES, 100 R503 0662057M50 RES, 100 R504 0662057M50 RES, 100 R505 0662057M50 RES, 100 R506 0662057M50 RES, 100 R507 0662057M50 RES, 100 R508 0662057N23 RES, 100K R509 0662057N23 RES, 100K R510 0662057N35 RES, 330K R511 0662057N23 RES, 100K R512 0662057N27 RES, 150K R513 Not_Placed RES, 100K R514 0662057N23 RES, 100K R515 Not_Placed RES, 0 R516 Not_Placed RES, 0 R517 0662057M01 RES, 0 R518 0662057N31 RES, 220K R519 0662057N23 RES, 100K R520 0662057N23 RES, 100K R521 Not_Placed RES, 100K R522 0662057N23 RES, 100K R523 0662057M98 RES, 10K R524 0662057M98 RES, 10K S440 4080710Z22 &

S441 4070354A01 pushbutton switch, PTT S442 4070354A01 pushbutton switch, side option

S443 4070354A01 pushbutton switch, side option

Motorola

Part No.

4080710Z15

Description

switch, rotary, 16 and 32/64 channel select

(lower)

(upper)

6880309N62-C June, 2005

7-20 VHF (136-162 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486769Z02-A)

Circuit

Ref

S444 1880619Z02 switch, rotary on-off, with 10K

SH1 2686421Z01 shield, comp side, RF front

SH40 2686419Z01 shield, solder side, first mixer SH50 2686423Z01 shield, solder side, IFIC and

SH52 2686424Z01 shield, solder side, high IF

SH100 2686418Z01 shield, solder side, transmitter SH200 2686424Z01 shield, solder side, synthe-

SH201 2686423Z01 shield, comp side, synthesizer SH250 2686425Z01 shield, comp side, VCO tank

SH251 2686425Z01 shield, solder side, VCOBIC SH253 2686422Z01 shield, comp side, VCO RX

SH400 2686420Z02 shield, solder side, micropro-

SH401 2686420Z01 shield, comp side, memory T41 2580541Z02 transformer, balun T42 2580541Z02 transformer, balun U51 5186144B01 receiver system (IFIC), SA616 U52 5109522E10 triple inverter, TC7W04F U110 0186438Z01 transmitter PA module,

U150 5113818A01 dual op amp, LM2904 U151 2484657R01 bead, 57R01 U201* 5185963A27 frequency synthesizer, 63A27 U251 5105750U54 VCO/buffer, 50U54 U310 5102478J01 5 V voltage regulator,

U320 5185963A55 adjustable voltage regulator w/

U330 5102479J01 3 V voltage regulator,

U403 Not_Placed SRM2B256 U425 5162852A09 LOW PWR OP AMP W/RAIL

U451 5185130C53 audio filter (ASFIC.cmp),

U480 Not_Placed LM2904 U490 5108858K99 audio power amplifier,

U510 5113818A01 dual op amp, LM2904 U511 4802245J54 dual digital NPN, UMG5 U401* 5102226J56 microprocessor,

U402* 5102463J64 serial EEPROM 16Kx8,

Motorola

Part No.

Description

volume control

end

2nd LO crystal

crystal filter

sizer charge pump

circuits

injection buffer

cessor

RA07M1317M_VHF

TK71750S

reset, LP2986

TK71730S

TO RAIL

30C53

TDA8541

MC68HC11FL0

X25128-2.7

Circuit

Ref

U404* 5102480J01 Flash ROM 128Kx8,

VR110 4813830A82 zener diode, 4.3 V,

VR301 4813830A33 zener diode, 20 V,

VR302 4813830A33 zener diode, 20 V,

VR471 4813830A18 zener diode, 6.8 V,

VR472 4813830A09 zener diode, 3.3 V,

VR473 4813830A33 zener diode, 20 V,

VR474 4813830A33 zener diode, 20 V,

VR475 4880140L20 zener diode, 15 V,

Y51 4802245J84 crystal, 44.395 MHz Y70 9186145B02 ceramic discriminator, 455

Y201* 4880114R06 crystal, 16.8 MHz, 14R06 Y202 Not_Placed 45J68

Motorola

Part No.

AT49LV001N_70VI

MM3Z4V3T1

MMBZ5250B

MMBZ5235B

MMBZ5226B

MMBZ5250B

MMBZ5245B

kHz, 45B02

* Motorola Depot Servicing only

Description

June, 2005 6880309N62-C

VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C) 7-21

Chapter 7 VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C)

USWB+

5V 3V5R

5T

USWB+

5T

5V

5T

USWB+

CONTROLLER

3V

5R

TX_ENA

PWR_SET

DEMOD

BW_SEL

RSSI

MOD_OUT

16_8_MHZ

SYNTH_CS

SPI_CLK

SPI_DATA_OUT

LOCK

MOD_IN

16_8_MHZ

SYNTH_CS

SYNTH_VHF_R1

SPI_CLK

SPI_DATA_OUT

LOCK

3V

5V

3V

5V

DEMOD

BW_SEL

RSSI

PRESC

V_STEER

V_SF

VCO_MOD

TRB

5V 5R

5V

RX_BE

IF_IN

PRESC

V_STEER

V_SF

VCO_VHF_R1

VCO_MOD

TRB

5R

IF_OUT RX_IN

RX_FE_VHF_R1

3V5R

3V

RX_INJ

TX_INJ

5R

RX_INJ

TX_ENA

PWR_SET

RX_OUT

5T

USWB+

TX_VHF_R1

TX_INJ

Figure 7-15. VHF (136-162 MHz) Radio Circuit Block Interconnect Diagram (8486769Z04-C)

6880309N62-C June, 2005

7-22 VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C)

C20

C4 18pF

C3 47pF

C5

3.3pF

L2 68nH

C6 22pF

L3 68nH

L4

68nH

C7 33pF

1000pF

C8

R26

30pF

0

132

CR1 MMBD352

C9

NU

R23

R22

22K

6.8K

C22 1000pF

L21

NU

1000pF

125 mV (RF)

C24 NU

C23

0.74V (Rx)

C99

0.1uF

R24 750

R25

5.6K

L51

3.9V (Rx) 700mV (RF)

C42 36pF

L41

68nH

L32 68nH

C30 30pF

FE_RF_INJ

C31 36pF

705mV (RF)

C29 10pF

3

1

2

Q21 BFS540

RX_INJ

C40 20pF

L31 68nH

C41 15pF

C32 68pF

L40 68nH

C33 27pF

C34 68pF

C35 33pF

C43 15pF

C44 20pF

L33 68nH

485mV (RF)

C36 30pF

445mV (RF)

4

6

RF BALUN

T41

4

6

IF BALUN T42

R40 1K

1

TP1

TP2

1

3

2

1

5

NC

3

2

1

5

NC

150nH

NC

C51 82pF

1

IO1

IO3

3

IO4

4

IO2

2

CR41

HSMS2829

SH1

SHIELD

1

SH40

SHIELD

1

Figure 7-16. VHF (136-162 MHz) Receiver Front End Schematic Diagram (8486769Z04-C)

June, 2005 6880309N62-C

VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C) 7-23

RX Back End (Overtone)

TC7W04F

R62

3.3K

GND

5V

L54

2%

C60

0.1uF

1uH

U52-1

L81

7

C68

0.1uF

D51

3

R60

2.4K

2

C61

47pF

C62

0.1uF

2

1

0.1uF

C64

R65 39K

R63 39K

C65

0.1uF

20

R90

51

C91

10uF

C92

0.1uF

6

VCC

1

R57

4.7K

33pF

C82

36pF

C81

1%

R81

1K

R82

NU

R80

5.1K

TSS2_44_395MHZ

22pF

Y51

44.395MHz

3

OUT IN

GND1

4

C80

1%

GND

CFWC455E

1

IN

3

CFWC455G

1

IN

3

18

19

MIXOUT

IFAMP_DEC1

RFIN

RFIN_DEC

2

3

1

2

FL53

OUT

GND1

GND2

FL54

OUT

GND1

GND2

16

17

IFAMPIN

IFAMPOUT

IFAMP_DEC2

U5

1

SA616

RSSIOUT

OSCIN

OSCOUT

5

4

R76

12K

1%

2

4

R64 20K

2

4

C66

0.1uF

14

13

12

LIMIN

LIM_DEC1

LIM_DEC2

AUDIOOUT

AUDIO_FEED

8

7

R77

8.2K

R66

20K

11

LIMOUT

GND

RSSI_FEED

QUADIN

9

10

1%

R75

12K

1

2

0.1uF

C67

0.1uF

15

D52

3

C63

1

R73

1.8K

2.1V When -47 dBm @ antenna

R78

680

C70

130pF

C73

4700pF

R67 20K

5V

R72

390

3

2

Q70

MMBT3904

R74

1.2K

Y70

45B02

455KHz

3

1.5V

C74

47pF

21

C71

0.1uF

C72

0.1uF

IF_RSSI

IF_DEMOD

RSSI

DEMOD

BW_SE L

5V

IF_IN

IF_BAND_SEL

U52-4

PWR_GND

IF_5

IF_IN

1

5V

R61

100K

5V for 25kHz

0V for 12.5kHz

5V

8

VCC

GND

4

5V

V

C52

22pF

C53

9.1pF

1.1%

U52-3

TC7W04F

35

44.85MHz

IN

3

2

CC1

5

CC2

1

FL51

MXF45

GND1

SH50

6

SHIELD

1

C93

3.6pF NU

1.6K

L53

120pF

NC

OUT

GND2

4

R91

R52 12K

SHIELD

C55

0.1uF

SH52

1

0.74V

R53

33K

3.39V

C56

0.1uF

R54

5.1K

Q51

PBR941

R55

330

3

1

2

3.05V

TC7W04F

6

C57

0.1uF

1

U52-2

3

2

3.9pF

CR51

2

9180468V04

IN1OU T

C58

C59

2.7pF

C69

0.1uF

FL52 FLTR

3

C90

0.1uF

1.2uH

Figure 7-17. VHF (136-162 MHz) Receiver Back End Schematic Diagram (8486769Z04-C)

6880309N62-C June, 2005

7-24 VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C)

PRESC

SPI_DATA_OUT

MOD_IN

SYNTH_CS

FN_PRESC

FN_DATA

FN_MOD

FN_SYNTH_CS

SPI_CLK

Reference Oscillator

C201

C202

C203

C206

R202

R206

D201

Y201

Y202

Crystal

220pF

62pF

2.7pF

NU

150k

NU

1SV232

14R06 NU

NU

TCXO

NU

0.01uF

47k

100

NU

45J68

FN_CLK

C203

2.7pF

3.7%

V_SF

4.5V

C204 470pF

107 mV (RF)

C293

470pF

FN_LOCK

R205

100

LOCK

LOCK: 3V UNLOCK: 0V

FN_VCO_MOD

FN_16_8

C205

NU

C244 1200pF

FN_V_STEER

R245

1.5K

C243

0.1uF

VCO_MOD

R220

150

R221 150

R243

1.8K

R244 51

1

C245 1uF

TP240

V_STEER

3.0V to 8.0V

16_8_MHZ

R227 150K

C228

0.1uF

C220 22pF

3V

0V

3V

0V

C227 1000pF

C226 10uF

C221 .01uF

C222 .01uF

C223 .01uF

C224 .01uF

C225 10uF

3

K3

2

K2

1

K1

D220

3

K3

NC

2

K2

1

K1

4

A3

5

A2

6

A1

4

A3

NC

5

A2

6

A1

R223

100

C218

2.2uF

C219

0.1uF

D221

FN_V_SF

TP200

1

16.8MHz

D201

1SV232

R246 100K

4

VCC

VCON

GND

2

2.4 V (TYP)

C233

4.7uF

R202 150K

1

C232

C231 1000pF

TX: 3V

C211

0.1uF

TRB

RX: 0V

5V

R230 110K

C241 1200pF

R248 51

C230

2.2uF

C208

C207

470pF

C209 470pF

R247 160K

C210 470pF

NC3

NC2

NC1

CCOMP

REFSEL

PREIN

SFBASE

SFCAP

BIAS2

BIAS1

VBPASS

PVREF

SFIN

DATA

MODIN

CEX

CLK

5

DGND

PRE_VDD

PD_VDD

34

22

U201

20

AGND

63A27

AVDD

36

31

NC

29

NC

17

NC

42

NC

18

NC

32

27

NC

26

39

40

21

NC

35

NC

30

7

10

9

8

PD_GND

PRE_GND

ADAPTSW

VRO

DVDD

47

13

WARP

INDMULT

SFOUT

LOCK

IADAPT

IOUT

TEST2

TEST1

AUX4

AUX3

AUX2

AUX1

VMULT4

VMULT3

VMULT2

VMULT1

MODOUT

FREFOUT

XTAL2

XTAL1

VCP

25

16

NC

28

46

NC

4

45

43

38

NC

37

NC

3

NC

2

1

NC

44 mV (RF)

FN_TRB

C201 220pF

48

11

12

14

15

41

19

24

23

C202 62pF

1%

33

44

6

205 mV (RF)

3

R206 NU

1

Y201

14R06

Y202

45J68

NU

OUT

3V

FN_3V

L211

560nH

C212

2.2uF

C213

.01uF

C214

1000pF

C206 NU

16.8MHz

3

OUT

IN

GND2GND1

4

5V

SH200

SHIELD

5V

SH201

SHIELD

FN_5V

C215

2.2uF

R212 0

C216

0.1uF

C217

1000pF

1

Figure 7-18. VHF (136-162 MHz) Synthesizer Schematic Diagram (8486769Z04-C)

June, 2005 6880309N62-C

VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C) 7-25

V_SF

V_STEER

3.0V to 8.0V

VCO_V_STEER

L251

560nH

C251 .01uF

L252

560nH

L262 560nH

D251

D261

100nH

L253

L263

100nH

V_SF

C253 16pF

C263 27pF 1%

VCO_MOD

4.5V

1%

C254 6pF

C264 10pF

L254 33nH

L264 47nH

VCO_MOD

VCO_VSF

R261

36K

C255 18pF 1%

C268

2.7pF

3.7%

C257 36pF 1%

L270 560nH

1SV229

C270 1200pF

.01uF

C256 10pF

1.0%

D262

C271

V_SF

R273 300

R270 18

C273

C258 1200pF

R264 220

R263 30

.01uF

R274

R254 220

R253 47

L255

330nH

C265 15pF 1%

R262

6.8K

33

C267 36pF 1%

C266 10pF

1.0%

L271 NU

L265

330nH

3V

R271

8.2K

C269 1500pF

VCO_3V

R272

9.1K

1

TX_IADJ

2

RX_IADJ

3

SUPER_FLTR

4

COLL_RFIN

5

RX_BASE

6

RX_EMITTER

16

TX_BASE

15

TX_EMITTER

20

FLIP_IN

19

TRB_IN

C272

0.1uF

14

VCC_BUFFERS

U251

GND_BUFFERS

GND_FLAG

9

11

1817

VCC_LOGIC

GND_LOGIC

50U54

TX_OUT

RX_OUT

PRESC_OUT

RX_SWITCH

TX_SWITCH

V_SF

C274

C285

0.1uF0.1uF

L282 47nH

10

8

12

7

NC

13

NC

R276

1K

C276

5.1pF

L276 100nH

206 mV (RF)

5R

C286 11pF

C277 1200pF

VCO_5R

L283 NU

R284 680

C284 1200pF

VCO_PRESC

C292 1200pF

R286 0

L292

68nH

L281 68nH

R281

9.1K

C290 51pF

PRESC

R280

6.8K

L291

27nH

C281 1200pF

1.89 V (Rx)

R282 750

1

R283 180

1200 mV (RF)

VCO_TX_INJ

C291 43pF

3

Q280 BFS540

2

C282

9.1pF

C283 1200pF

TX_INJ

850 mV (RF)

VCO_RX_INJ

1.35 V (Rx)

RX_INJ

SH250

SHIELD

1

SH251

SHIELD

1

SH253

SHIELD

1

TRB

TX: 3V RX: 0V

VCO_TRB

R275

0

C275 1200pF

Figure 7-19. VHF (136-162 MHz) Voltage Controlled Oscillator Schematic Diagram (8486769Z04-C)

6880309N62-C June, 2005

7-26 VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C)

TX_INJ

TX_ENA

820 mV (RF)

PA_TX_INJ

R100

R158

1.5K

1

R111 NU

7.5 V

C170

0.1uF

64

5

1

23

C172

1500pF

Q150

3

2

R156 330

2.5 V (Low)

3.0 V (Hi)

VR110

4.3V

0 V (Rx)

7.3 V (Tx)

1

C153

0.47uF

7

C157

0.1uF

C154

R157

5.6K

C159 1500pF

1500pF

C112 1500pF

C155

0.1uF

8

2

3

4

U150-1

LM2904

R162 10K

C158 1500pF

L110 560nH

C110

0.1uF

2

L103 30nH

C106

1500pF

VGG

1

RFIN

1100 mV (RF)

C107 10pF

8

4

U150-2

LM2904

3

VDD

RFOUT

GND

5

U110 RA07M1317M_VHF

0 V (Rx)

7.25 V (Tx)

C151 1500pF

6

5

C152 1500pF

C113 1500pF

DO NOT MEASURE

4

C117 1000pF

C150 1500pF

C115 1uF

D120 MA4PH261

0 V (Rx)

0.9 V (Tx)

R152 100K

1% R153 100K 1%

R154

100K

1% R155 100K 1%

C116

0.1uF

C131 10pF

C130 15pF

L121 47nH

C122 15pF

D121

MA4PH261

R151 22

L130

43.67nH

C132 15pF

U151

57R01

R150

0.1

L120

560nH

C133

2.4pF

L131

43.67nH

C123 20pF

C134 13pF

C124 1500pF

R120 150

R121 150

PA_RX_OUT

C135 10pF

L132

43.67nH

C120 1500pF

C121 1500pF

C136

6.2pF

0 V (Rx)

1.6 V (Tx)

RX_OUT

C137 200pF

C140 16pF

C141

22pF

NC

L140

30.54nH

S1

S2

G1

G2

T1

T2

M140 ANTENNA_NUT

1

TAB1

2

TAB2

J140

TAB3

TAB4

3

NC

4

NC

PA_USWB+

7.4 V (Rx)

0.15 V (Tx)

2.5 V (Low)

Q170 EMB10

C156 .01uF

0 V (Rx)

PA_TX_ENA

1.8V (Tx)

USWB+

R171

6.8K

R524 10K

3

1

Q171 MMBT3904

2

3.0 V (Hi)

TP150

1

2.4 V (Hi)

1.06 V (Low)

L100

560nH

3

2

R104 51

Q100 BFS540

PA_PWR_SET

1500 mV (RF)

4.9 V (Tx)

C101

1500pF

C111 NU

R110 360

C105 NU

C108

0.1uF

PWR_SET

5T

R101 18

300

PA_5T

C100 1500pF

R102 300

C109

0.1uF

C104 NU

C103 1500pF

L102 100nH

C114 1500pF

C171

2.7pF

R106

4.7K

L101 560nH

R105

1.2K

R103

3.3K

C102

0.1uF

R107 150

1.5 V (Tx)

1

SH100

SHIELD

1

Figure 7-20. VHF (136-162 MHz) Transmitter and Power Control Schematic Diagram (8486769Z04-C)

June, 2005 6880309N62-C

VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C) 7-27

5V

3V

SW_B+

3V

5V

VOX

SW_B+

AUDIO

LSIO

HSIO

EXT_MIC_PTT

BOOT_ENA

F1200

uP_CLK

ASFIC_CS

RESET

SCI

PWR_SET

DEMOD

BW_SEL

MOD_OUT

16_8_MHZ

BATT_CHARGE

TP403

TP404

CNTL_PWR_SET

CNTL_DEMOD

CNTL_BW_SEL

CNTL_MOD_OUT

CNTL_16_8_MHZ

CNTL_SPI_CLK

CNTL_SPI_DATA_OUT

CNTL_SYNTH_CS

CNTL_LOCK

CNTL_RSSI

CNTL_TX_ENA

PWR_SET

DEMOD

BW_SEL

MOD_OUT

16_8_MHZ

SPI_CLK

SPI_DATA_OUT

SYNTH_CS

LOCK

RSSI

TX_ENA

SW_B+

C503 1000pF

D3_3V

27

28

26

25

24

23

21

22

19

20

18

17

1516

14

13

12

11

9

10

8

7

5

6

4

3

2

1

30

29

32

31

J460-1

ACCESSORY/KEYPAD CONNECTOR

C405 100pF

C406 100pF

C500 1000pF

3V

E500 BK1005HM471

C501 1uF

OPT_MIC

OPT_TX_AUD_FLAT_RETURN

OPT_TX_AUD_RETURN

OPT_TX_AUD_SEND

OPT_RX_AUD_SEND_DETECTOR

OPT_RX_AUD_SEND_UNMUTED

OPT_RX_AUD_RETURN

VS_AUDIO_SEL

VS_GAIN_SEL

SPI_CLK

SPI_DATA_OUT

R502

R504 100

R505 100

100

R501 100

SQ_DET

CH_ACT

C505

1000pF

C403

C504

100pF

1000pF

C402

C507

C506

1000pF

1000pF 1000pF

1000pF

C408 1000pF

C409

1000pF

R503 100

5V

SW_B+

3VD3_3V

3V

USWB+

TP301

USWB+

RESET

BATT_CHARGE

RX_ENA

DC_REGULATION

VOLUME

ON_OFF

TX_ENA

SW_B+

D3_3V

3V

SPI_CLK

SPI_DATA_IN

SPI_DATA_OUT

SQ_DET

CH_ACT

VOX

LSIO

HSIO

BOOT_ENA

EXT_MIC_PTT

F1200

uP_CLK

MICROPROCESSOR

ASFIC_CS

RESET

SCI

BATT_DETECT

SYNTH_CS

LOCK

RSSI

TX_ENA

RX_ENA

VOLUME

ON_OFF

5V

VS_RAC

OPT_DATA_READY

BACKLIGHT

KEYPAD_ROW

KEYPAD_COL

NC

DISPL_COM_DATA_SEL

DISP_ENA

OPT_ENA

VS_CS

VS_INT

C404

C407

1000pF

1

3

1

3

1

3

A1

A2

S441 SWITCH

A1

A2

S442 SWITCH

A1

A2

S443 SWITCH

2

B1

4

B2

2

B1

4

B2

S440 SWITCH

2

B1

4

B2

1

PC0

2

PC1

4

8

PC2

PC3

C0

C1

GND7GND1

9

PTT

OPT_BUTTON_1

OPT_BUTTON_2

FREQ_SEL_0

FREQ_SEL_1

FREQ_SEL_2

FREQ_SEL_3

SW_B+

SWB+

5R

5V

5R

D3_3V

5T

CNTL_USWB+

CNTL_5V

CNTL_5R

CNTL_5T

CNTL_3V

3V

5T

D3_3V

USWB+

5V

5R

5T

3V

Figure 7-21. VHF (136-162 MHz) Controller Interconnect Schematic Diagram (8486769Z04-C)

6880309N62-C June, 2005

7-28 VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C)

D3_3V

SH400

SHIELD

D3_3V

R410 10K

D3_3V

C412 1000pF

R412 100K

6

1

3

7

5

U402 X25128-2.7

8

SCK

VCC

CS

2

SO

WP

HOLD

SI

VSS

4

EEPROM

C411

C410

0.1uF

10uF

TP402

C413

0.1uF

R416 20K

1

SPI_DATA_IN

SPI_DATA_OUT

SPI_CLK

C400

R400

NU

DISPL_COM_DATA_SEL

ASFIC_CS

SYNTH_CS

SW_B+

3

BACKLIGHT

ON_OFF

DISP_ENA

D3_3V

C430

0.1uF

U404

AT49LV001N_70VI

D(0)

D(1)

D(2)

D(3)

D(4)

D(5)

D(6)

D3_3V

D(7)

R431 NU

SH401

SHIELD

1

R433 100K

FLASH

8

VCC

EN_CE EN_OE EN_WE

RESET

21

D0

22

D1

A0

23

D2

A1

25

D3

A2

26

D4

A3

27

D5

A4

28

D6

A5

29

D7

A6 A7

6

NC

A8

A9 A10 A11 A12 A13 A14 A15 A16

GND

24

2

Q403

R446 10K

1

R445

4.7K

C431 1000pF

30 32 7

9

20 19 18 17 16 15 14 13 3 2 31 1 12 4 5 11 10

A(0)

A(1)

A(2)

A(3)

A(4)

A(5)

A(6)

A(7)

A(8)

A(9)

A(10)

A(11)

A(12)

A(13)

A(14)

A(15)

A(16)

R432 0

A(17)

A(18)

R434 NU

NU

2

97

98

99

100

1

3

6

NC

PG0_XA13

16

PG1_XA14

A(14)

20

PG2_XA15

A(15)

19

PG3_XA16

A(16)

17

PG4_XA17

A(17)

18

PG5_XA18

A(18)

5

NC

PG6_AS

47

3

Q402

1

2

PH0_PW1

46

PH1_PW2

45

PH2_PW3

44

PH3_PW4

43

PH4_CSIO

42

PH5_CSGP1

41

PH6_CSGP2

38

PH7_CSPROG

30

PC0_DATA0

D(0)

31

PC1_DATA1

D(1)

32

PC2_DATA2

D(2)

33

PC3_DATA3

D(3)

34

PC4_DATA4

D(4)

35

PC5_DATA5

D(5)

36

PC6_DATA6

D(6)

37

PC7_DATA7

D(7)

D(7:0)

A(18:0)

PD5_SS

PD6_LVIN

PD4_SCK

PD3_MOSI

A(7)

PD2_MISO

A(6)

A(5)

PD1_TXD

A(4)

PD0_RXD

86

A(2)

A(3)

84

85

PA7_PA1_OC1

PA5_OC3_OC1

PA6_OC2_OC1

PF1_ADDR127PF2_ADDR226PF3_ADDR325PF4_ADDR424PF5_ADDR523PF6_ADDR622PF7_ADDR729PFO_ADDR0

28

A(0)

A(1)

82

83

PA4_OC4_OC1

PA3_IC4_OC5_OC1

PB7_ADDR15

7

NC

D3_3V

C432

0.1uF

R430 100K

11

D(0)

12

D(1)

13

D(2)

15

D(3)

16

D(4)

17

D(5)

18

D(6)

19

D(7)

U403 NU

SRAM

C433 1000pF

28

10

A(0)

A0

9

VDD

A(1)

A1

8

A(2)

A2

7

A(3)

A3

6

A(4)

A4

5

A(5)

A5

4

D1 D2 D3 D4 D5 D6 D7 D8

A(6)

A6

3

A(7)

A7

25

A(8)

A8

24

A(9)

A9

21

A(10)

A10

23

A(11)

A11

2

A(12)

A12

26

A(13)

A13

1

A(14)

A14

20

CS

22

OE

27

WE

VSS

14

5V

Q440-2

RED LED

1

Q440-1

6

4

2

3

R443

R442

120

220

GREEN LED

D440 BRPY1204W

TP405

1

2

3

79

PA0_IC380PA1_IC281PA2_IC1

U401

MC68HC11FL0

A(11)

A(12)

A(13)

5

R417 10K

6

4

Q410

C418

0.1uF

C419 1000pF

SCI

R401

300K

C425 1uF

R411 820

R419

4.7K

1

TP401

LSIO

CH_ACT

SQ_DET

D3_3V

NC

Q425

R402 10K

R403 10K

C426 1uF

D3_3V

D425

R406 220K

Q426

100K R407

D3_3V

U425

4

2

LMC7101BI

1

3

R405

300K

R404 51K

5

D3_3V

R408 100K

Q427

P13

R409

1.0K

HSIO

OPT_DATA_READY

uP_CLK

D3_3V

R418 100K

C414

0.1uF

NC

68

VRL

PBO_ADDR8

14

A(8)

NC

93

95

12

39

88

92

69

XFC

VDD

VRH

VDDSYN

LVOUT

PI055PI154PI253PI352PI451PI550PI649PI7

56

VDDR

MODB_VSTBY

13

NC

91

90

XTAL

EXTAL

PB1_ADDR911PB2_ADDR109PB3_ADDR1121PB4_ADDR1215PB5_ADDR138PB6_ADDR14

10

A(9)

A(10)

R440

4.7K

R441

4.7K

59

VDDL

AVDD

ECLK

PG7_R_W

MODA_LIR

PJ0_CSGP3

PJ1_CSGP4

PE0_AN0

PE1_AN1

PE2_AN2

PE3_AN3

PE4_AN4

PE5_AN5

PE6_AN6

PE7_AN7

VSS

C415

1000pF

89

NC

96

IRQ

48

XIRQ

94

RESET

4

58

57

71

72

73

PJ2

74

PJ3

75

PJ4

76

PJ5

77

PJ6

78

PJ7

67

66

65

64

VS_RAC

63

62

61

60

VSSL87VSSR

AVSS

40

70

C416

1000pF

R413 100K

P13

RSSI

D3_3V

R422

100K

R423

100K

VOX

KEYPAD_COL

KEYPAD_ROW

LOCK

R415 33K

NC

D414

C445C446

.01uF

R420 200K 1%

C420

R421

.01uF

100K 1%

C422

.01uF

C421 .01uF

R414 33K

SW_B+

R425 100K 1%

C440 .01uF

C447

0.1uF

D424

RB520S-30

C417 1000pF

C441

.01uF

VOLUME

R424 200K 1%

C442

.01uF

SW_B+

3V

BATT_DETECT

F1200

RESET

BOOT_ENA

PTT

EXT_MIC_PTT

FREQ_SEL_0

FREQ_SEL_1

FREQ_SEL_2

FREQ_SEL_3

OPT_BUTTON_1

OPT_BUTTON_2

C401

0.1uF

C444

C443

.01uF

VS_INT

VS_CS

OPT_ENA

TX_ENA

RX_ENA

Figure 7-22. VHF (136-162 MHz) Microprocessor Circuitry Schematic Diagram (8486769Z04-C)

June, 2005 6880309N62-C

VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C) 7-29

R513

Not Pla ce d

R515

Not Pla ce d 0

R516

Not Pla ce d

R517 0

DEMOD

VHF UHF

100k

Not Pla ce d Not Pla ce d

150 mV RMS (25 kHz) (Rx)

75 mv RMS (12.5 kHz) (Rx)

R516

C512

6.8pF

R511 100K

5V_A

R518 220K

R519 100K

C511 220pF

C519 1uF

2

3

U510-1 LM2904

2.3 V

VS_AUDIO_SEL

VS_GAIN_SEL

PWR_SET

BW_SEL

CH_ACT

SQ_DET

ASFIC_CS

SPI_CLK

SPI_DATA_OUT

NU

R512 150K

8

R513

1

4

C513 220pF

C514 16pF

6

5

U510-2 LM2904

R514 100K

8

R515

7

4

5V_A

C518

0.1uF

1

6

Q520-1

C460

0.1uF

IMX1

R521

R517

LSIO

HSIO

VOX

C451

0.1uF

3V

C452

0.1uF C453

5V_A

4.7uF

C455 .022uF

11

10

12

SQCAP

13

VDDDAC

GCB2

14

GCB1

15

GCB0

16

CHACT

17

SQDET

18

LSIO

19

HSIO

20

CSX

21

CLK

22

DATA

23

GNDSYN

24

LCAP

PLCAP2

NC

25

27

26

R451 47K

E452

BK1005HM471

NC

C457

0.1uF C458

0.1uF

C459

0.1uF

E453

BK1005HM471

C456

0.1uF

3V_A

3V

E451

BK1005HM471

5V_B

5V

UIO

VDDSYN

3V_A

C454

0.1uF

7

8

9

1

3

6

5

2

VOX

DISC

SQIN

SYN

28

VDDA

DACR4DACU

GNDA

DACG

PLCAP

30C53

U451

F1200

29

31

48

NC

MICEXT

47

GNDRC

46

MICINT

45

VDDRC

44

TXSND

43

RXRT N

42

AUXT N

41

AUDI O

40

MOD

39

RXSND

38

NC

GCB5

37

GCB4

VDDD

GCB3

CLK168

TXRT N

VDDCP

GNDD30GNDDO

33

35

34

36

32

114 mV (RF)

F1200

uP_CLK

5V_A

C497

0.1uF

R522 100K

5

R520 100K

3V_A

R460 24K

R462 24K

3V_A

R523 10K

4

2

3

Q520-2

IMX1

OPT_RX_AUD_SEND_DETECTOR

OPT_RX_AUD_RETURN

OPT_RX_AUD_SEND_UNMUTED

OPT_TX_AUD_FLAT_RETURN

OPT_TX_AUD_SEND

OPT_TX_AUD_RETURN

C461

4.7uF

3V

C462

C463

0.1uF

R464 30K

C464

0.1uF

R463 24K

1.5 V

5V_B

R481

R482

C481

NU

C482

2

3

Q481

NU

1

R486

2

3

R483

1

5V_B

2

3

Q490

R488

UMG5

330K

C490 470pF

C465 1000pF

C467 1200pF

C471

2.2uF

200 mV RMS

MOD_OUT

A_MOD_OUT

C466 NU

145 mV RMS

R487

5V_B

8

1 U480-1

4

R485

6

4

0

C483

0.1uF

R484

NU

C484

NU

3

1

2

Q482

6

1

2

4

3

U511

UMG5

3 V (UNSQ)

1.5 V

R474 330

25

R476 100K

C472

0.1uF

0 V (Rx) 3 V (Tx)

C470

0.1uF

1

4

3

6

Q470

R479 100K

SW_B+16_8_MHZ

R494

C493 1000pF

C499

82pF

R493 330K

R492

R491

24K

0

R490

NU

330K

C494

2.2uF

DC Level 0.3 - 0.4 V low Supply = 7.42 1/2 Supply = 3.22

R475 180K

R477

2.2K

C474 150pF

EXT_MIC_PTT

C479

150pF

D471

L471 390nH

C473 150pF

7.5 V

6

1

MODE

VCC

3

INPOS

OUTNEG

2

OUTPOS

SVR

4

INNEG

GND

7

U490 TDA8541

C492 10uF

R498

C495 1uF

R495

5.6K

C498 1uF

0.15 V (UNSQ)

VR473

MMBZ5250B

20V

VR475

MMBZ5245B

15V

5 8

NC

R470

2.2K

VR471

NC

VR472

NC

5V

R255

3.9K

1%

D470

R478

2.2K

R472 680

2

R471

2.2K

BATT_CHARGE

NC

C475 .022uF

C476 .022uF

C478 150pF

3V_A

1

6

R480 0

4

3

Q472

C477

0.1uF

SCI

R473 680

5

1

2

3

10 mV RMS (Tx)

VR474

MMBZ5250B

20V

1

2

J470-1

MICROPHONE CONNECTOR

RESET

6

BOOT_ENA

4

Q471

OPT_MIC

S2

4

S4

5

S3

6

S1

7

NC

M2

2

M3

3

M1

1

J471

ACCESSOR Y C ONNECTOR

1

2

J491-1

INTERNAL SPEAKER

3

J491-3

J491-44

3.5V (UNSQ)

C488 470pF

C480

R469

0.1uF

10

3.5V (UNSQ)

C489 470pF

8

7

4

D491

R497

U480-2

R496

NU

5V_B

6

R499

C496

5

1uF

R489

3.46 V RMS (Rx)(0.5 W@24 OHMS

Figure 7-23. VHF (136-162 MHz) Audio Circuitry Schematic Diagram (8486769Z04-C)

6880309N62-C June, 2005

7-30 VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C)

BATT_CHARGE

POS NEG

DATA

J301

C302 390pF

VOLUME

ON_OFF

F301

C305 100pF

3A

R506 100

R507 100

D3_3V

C306 .01uF

3

2

1

C301

390pF

HIGH

LOW

TAB16TAB2

3.3 V (ON) 0 V (OFF)

7

7.5 V

NC

VR302 MMBZ5250B

20V

S444 SWITCH

4

5

7.5 V (ON) 0 V (OFF)

R510 330K

VR301

MMBZ5250B

20V

SWB+

1

2

3

D301

Q494

6

4

R508 100K

2

0 V (ON)

7.5 V (OFF)

USWB+

C303 33uF

1

Q493

U310 TK71750S

1

2

GND

FEEDBACK

GND

5

OUTPUT

ERROR

R313

5.1K

D3_3V

3.3 V (Tx)

5

7

2

0 V (Rx)

C311 .018uF

3.3 V (Rx) 0 V (Tx)

R312 20K

C320 .018uF

1

VIN VOUT

3

CTRL

4

BYPASS

C304

.01uF

C310 .01uF

RX_ENA

TX_ENA

3

R509 100K

7.5 V (ON) 0 V (OFF)

NC

U320 LP2986

4

INPUT

8

SHUTDOWN

6

SENSE

3

TAP

C312 10uF

R322 100K

R320 330K 1%

5 V

Q313

3.3 V

C313 .01uF

C323 150pF

C321 10uF

5 V (Rx)

0 V (Tx)

D3_3V

C322 .01uF

C314 1200pF

0 V (Rx)

5 V (Tx)

R311 100K

3.3 V

R310 100K

C316 1200pF

Q312

RESET

D3_3V

Q311

C315 1200pF

0 V (Rx) 5 V (Tx)

5V

5R

5 V (Rx)

0 V (Tx)

5T

R321 200K 1%

TP302

1

VIN VOUT

3

CTRL

4

BYPASS

C331 .01uF

U330 TK71730S

5

GND

2

C334 10uF

C333 .01uF

3 V

3V

Figure 7-24. VHF (136-162 MHz) DC Regulation Schematic Diagram (8486769Z04-C)

June, 2005 6880309N62-C

VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C) 7-31

E500

R521

R462 R445

R446

C500

C409

C461

C404

C403

C408 C506 C503

C505

R504

R473

Q403

C407

Q472

C460

R503

Q402

C402

C400

C406

R470

R522

C504

C501

C507

R472

R471

R400

R414

C477

SH401

R480

C513

VR471 VR472

8

7

Q440

C410

C454

R513

D471

R442

U403

1

R514

C470

R443

C433 C432

C465

R463

D424

R425

R424

C430C431

21

22

C421

C413

37

U451

1

58

C422

32

1

R431

C418

C412

R410

R419 R417

U402

U404

R407

R402

R401

R409

Q427

C425

C210

C209

L211

C204

C218

Q425

C245

C207 C208

R223

C264

C213

C219

L265

L264

L263

R244

1

13

R220

D425

C263

C243

R243

R221

R263

R205

R264

C267 C266

C265

C268 L262

U201

C269

R262

C214

C205

C251

R230

Q426

D262

R245

R247

C258

C257

R261

L252

L251

C293

37

25

C202

R254

C256

C244

C201

C255

C253

C212

R408

R403

R253

L255

L253

C241

C230

C458

25

13

C455

4

1

C446

17 16

C419

D251D261

C215

R248

C217

C231

U425

L254

R212

C233

C254

C216 C232

R406 R405

R404

SH250

SH201

C426

SH1

L283

C283 R283

C34

C36

C286

R286

C303

R280

C281

C284

C35

L33

R281

R282

L281

L32

43

FL54

C69

SH253

C30

C31

L31

C25 C29

R61

Y70

C91

L22

R25

C282

Q280

C33 C32

4

U52

58

3

2

R24

Q21

C22

C24

L21

2

R22

C9

C92

C8

R63

C23

R26

CR1

FL53

43

32

J301

C6

L4

C4

L1

C5

C7

L2

L3

D301

2

VR301

F301

C305

C2

C3

C1

C476

C301

C306

C478

6

J470

5

C473

L471

D470

Q171

VR302

5U110

R171

R524

C302

7

J471

VR473

3

E452

2C8

5

4

R483

4

U480

R489

58

S440

M140

J140

2

4

C

S444

R481 C482

1

R482

C488

C480

R469

C112

C113

2

VR475

1

2

3

4

R496

C489

4

3

VR110

C117

3

4

S443

1

2

3

1

S442

4

2

3

1

S441

4

2

ZMY30000-O

Figure 7-25. VHF (136-162 MHz) Board Component Side View (8486769Z04-C)

6880309N62-C June, 2005

7-32 VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C)

Q22

TP402

TP401

TP405

R21

C26

R20

C99

C20

R23

TP302

R520

TP403

C405

Q520

3 4

Q471

31

32

2

J460

29

28 30

29

R505

R523

D414

C467

C519

SH400

R519

R518

4

R440

C511

26

51

U510

C514

C447

C401

C512

R512

R441

R423

TP301

1

85

R434

R517

R515

C462

C518

C417

R432

R460

U401

R422

C459

R416

R433

R420

R421

C420

C464

R464

R516

C497

R418

R415

C463

C466

C414

C415

R511

C206

TP240

L291

10

1

C321

3

4

R202

C290

R272

R274

L271

R206

Y201

Y202

C211

R273

R271

C285

L282

L270

R270

C271

C322

2

R246

C274

R321

D201

TP200

L292

R284

C292

C270

C273

R320

C203

C320

TP2

TP1

4

R227 C227

C225

SH251

D220

C277

L276

C276

C220

C272

C222

C221

D221

C228

C226

R276

C275

11

20

R275

C291

U251

R411

Q410

4

3

C444

1

C443

C451

R451

76

C442

C453

C452

R502

R501

C440

C441

C411

C456

R430

C445

R412

C416

C457

R413

E451

E453

C223

SH200

C224

6

T41

CR41

3

4

L41

L40

85

U320

L52

C51

T42

C304

R322

R506

4

3

6

C43

C42

C40

C323

L51

R51

SH40

C44

R40

C41

U330

U310

C312

TP404

C331

C310

C315

R73

C333

C313

R255

C70

R72

R65 C68 R66 R64

C311

C52 C53

3

4

C72

C71

Q70

C334

Q311

R74

C66 C67

D52

C73

R75

2

FL51

5

10

11

R313

R310

R78

3

C90

R76

C74

3

4

R77

C63 R67

U51

Q313 C314

6

R90

C62

D51

FL52

L53 C93

C60

R57

R312

R311

R52 C55 R53

1

20

C65

C64 R60

Q312

C316

R62

2

Q51

L54

C81

R54

C57 R55

2

L81

C61

Y51

C80 R80

C58 C59

R91

4

3

C82

CR51

C56

R81

R82

SH52

SH50

C152 R155 R153 C151

R101 R100

C475

R151

R154

Q150

C170

C120

R478

C471

C472

U151

4 6

C100 R102

C172

R150

C150

R152

3

1

Q470

R476

R157

R156

Q170

C104

R479

C121

C157

5

8

C159

C154

L102

R121

C155

C153

R158

C171 R103

U150

C109 C103

R475

R474

L120

1

4

C114

R104

C499

J491

C156

R106

L101

C474 R477

C492

R493

2

D120

R120

C122

C158

R162

C111

R110

R107

R105

C101

L100

C102

C108

C479

4

C124

U490

R485

C130

L121

D121

C115

L110

C106

Q100

R487

C484

L130

C123

C116 C110

R111 C107

C105

R484

Q482

C133

L103

C498

1

85

C131

R491

R486

C132

SH100

R492

R490

C483

L131

R495

Q481

VR474

L132

C135 C134

TP150

U511

3

4

R494

C481

C490

Q490

R509

C493

C137

C136

3

R510

4

R488

Q493

C494

C140

R508

Q494

L140

C496

R497

D491

4 3

C141

4

3

D440

R499

R498

2

C495

R507

ZMY30001-O

Figure 7-26. VHF (136-162 MHz) Board Solder Side View (8486769Z04-C)

June, 2005 6880309N62-C

VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C) 7-33

VHF (136-162 MHz) Radio Parts List (8486769Z04-C)

Circuit

Ref

C1 2115153H43 CAP, 22pF C2 2115153H48 CAP, 36pF C3 2115153H49 CAP, 47pF C4 2115153H39 CAP, 18pF C5 2115153H15 CAP, 3.3 C6 2115153H41 CAP, 22pF C7 2115153H45 CAP, 33pF C8 2115153H44 CAP, 30pF C9 Not_Placed C20 2113945A09 CAP, 1000pF C22 2113945A09 CAP, 1000pF C23 2113945A09 CAP, 1000pF C24 Not_Placed C25 2113945A09 CAP, 1000pF C26 2113945A09 CAP, 1000pF C29 2115153H27 CAP, 10pF C30 2115153H44 CAP, 30pF C31 2115153H46 CAP, 36pF C32 2115153H53 CAP, 68pF C33 2115153H43 CAP, 27pF C34 2115153H53 CAP, 68pF C35 2115153H45 CAP, 33pF C36 2115153H44 CAP, 30pF C40 2115153H40 CAP, 20pF C41 2115153H37 CAP, 15pF C42 2115153H46 CAP, 36pF C43 2115153H37 CAP, 15pF C44 2115153H40 CAP, 20pF C51 2113944A38 CAP, 82pF C52 2115153H41 CAP, 22pF C53 2115153H26 CAP, 9.1pF C55 2113946K02 CAP, 100000pF C56 2113945C31 CAP, 0.10uF C57 2113946K02 CAP, 100000pF C58 2113944A15 CAP, 25pF C59 2113944A11 CAP, 2.7pF C60 2113946K02 CAP, 100000pF C61 2113944A36 CAP, 68pF C62 2113946K02 CAP, 100000pF C63 2113946K02 CAP, 100000pF C64 2113946K02 CAP, 100000pF C65 2113946K02 CAP, 100000pF C66 2113946K02 CAP, 100000pF C67 2113946K02 CAP, 100000pF C68 2113946K02 CAP, 100000pF C69 2113946K02 CAP, 100000pF C70 2113944A87 CAP, 130pF C71 2113945C31 CAP, 0.10uF C72 2113946K02 CAP, 100000pF C73 2113945A13 CAP, 4700pF

Motorola

Part No.

Description

Circuit

Ref

C74 2113944A33 CAP, 47pF C80 2115153H41 CAP, 22pF C81 2115153H45 CAP, 33pF C82 2115153H46 CAP, 36pF C90 2113946K02 CAP, 100000pF C91 2313960D07 CAP, 10uF C92 2113945C31 CAP, 0.10uF C93 Not_Placed C99 2113946K02 CAP, 100000pF C100 2113945A10 CAP, 1500pF C101 2113945A10 CAP, 1500pF C102 2113946K02 CAP, 100000pF C103 2113945A10 CAP, 1500pF C104 Not_Placed C105 Not_Placed C106 2113945A10 CAP, 1500pF C107 2113944A25 CAP, 10pF C108 2113946K02 CAP, 100000pF C109 2113946K02 CAP, 100000pF C110 2113946K02 CAP, 100000pF C111 Not_Placed C112 2113945A10 CAP, 1500pF C113 2113945A10 CAP, 1500pF C114 2113945A10 CAP, 1500pF C115 2313960B01 CAP, 1uF C116 2113946K02 CAP, 100000pF C117 2113945L25 CAP, 1000pF C120 2113945A10 CAP, 1500pF C121 2113945A10 CAP, 1500pF C122 2113944C32 CAP, 15pF C123 2113944C80 CAP, 20pF C124 2113945A10 CAP, 1500pF C130 2113944C32 CAP, 15pF C131 2113944C30 CAP, 10pF C132 2113944C32 CAP, 15pF C133 2113944C15 CAP, 2.4pF C134 2113944C78 CAP, 13pF C135 2113944C30 CAP, 10pF C136 2113944C72 CAP, 6.2pF C137 2113944C89 CAP, 20pF0 C140 2113944C79 CAP, 16pF C141 2113944C34 CAP, 22pF C150 2113945A10 CAP, 1500pF C151 2113945A10 CAP, 1500pF C152 2113945A10 CAP, 1500pF C153 2113946L04 CAP, 0.47uF C154 2113945A10 CAP, 1500pF C155 2113945C31 CAP, 0.10uF C156 2113945B02 CAP, 10000pF C157 2113946K02 CAP, 100000pF C158 2113945A10 CAP, 1500pF

Motorola

Part No.

Description

Circuit

Ref

C159 2113945A10 CAP, 1500pF C170 2113946K02 CAP, 100000pF C171 2113944A11 CAP, 2.7pF C172 2113945A10 CAP, 1500pF C201 2113944C02 CAP, 220pF C202 2115153H52 CAP, 68pF C203 2115153H13 CAP, 2.7pF C204 2113945A05 CAP, 470pF C205 Not_Placed C206 Not_Placed C207 2113945A05 CAP, 470pF C208 2113945A05 CAP, 470pF C209 2113945A05 CAP, 470pF C210 2113945A05 CAP, 470pF C211 2113945C31 CAP, 0.10uF C212 2113946N03 CAP, 2.2uF C213 2113945B02 CAP, 10000pF C214 2113945A09 CAP, 1000pF C215 2113946N03 CAP, 2.2uF C216 2113945C31 CAP, 0.10uF C217 2113945A09 CAP, 1000pF C218 2113946N03 CAP, 2.2uF C219 2113945C31 CAP, 0.10uF C220 2113944A29 CAP, 22pF C221 2113945B02 CAP, 10000pF C222 2113945B02 CAP, 10000pF C223 2113945B02 CAP, 10000pF C224 2113945B02 CAP, 10000pF C225 2313960D07 CAP, 10uF C226 2313960D07 CAP, 10uF C227 2113945A09 CAP, 1000pF C228 2113945C31 CAP, 0.10uF C230 2113946N03 CAP, 2.2uF C231 2113945A09 CAP, 1000pF C232 2113945C31 CAP, 0.10uF C233 2313960B30 CAP, 4.7pF C241 2113945A60 CAP, 1200pF C243 2113945G91 CAP, 100000pF C244 2113945L27 CAP, 1200pF C245 2313960C26 KEMET CAP C251 2113945L49 CAP, 1000pF C253 2115153H38 CAP, 16pF C254 2115153H30 CAP, 6pF C255 2115153H39 CAP, 18pF C256 2115153H27 CAP, 10pF C257 2115153H46 CAP, 36pF C258 2113945A60 CAP, 1200pF C263 2115153H43 CAP, 27pF C264 2115153H27 CAP, 10pF C265 2115153H37 CAP, 15pF C266 2115153H27 CAP, 10pF

Motorola

Part No.

Description

Circuit

Ref

C267 2115153H46 CAP, 36pF C268 2115153H13 CAP, 2.7pF C269 2113945A10 CAP, 1500pF C270 2113945A60 CAP, 1200pF C271 2113945B02 CAP, 10000pF C272 2113945C31 CAP, 0.10uF C273 2113945B02 CAP, 10000pF C274 2113945C31 CAP, 0.10uF C275 2113945A60 CAP, 1200pF C276 2113944A18 CAP, 5.1pF C277 2113945A60 CAP, 1200pF C281 2113945A60 CAP, 1200pF C282 2113944A24 CAP, 9.1pF C283 2113945A60 CAP, 1200pF C284 2113945A60 CAP, 1200pF C285 2113945C31 CAP, 0.10uF C286 2113944A77 CAP, 11pF C290 2113944A85 CAP, 51pF C291 2115153H48 CAP, 43pF C292 2113945A60 CAP, 1200pF C293 2113945A05 CAP, 470pF C301 2113945A04 CAP, 390pF C302 2113945A04 CAP, 390pF C303 2313960F04 CAP, 33uF C304 2113945B02 CAP, 10000pF C305 2113944A40 CAP, 100pF C306 2113945L49 CAP, 1000pF C310 2113945B02 CAP, 10000pF C311 2113743E05 CAP, 0.18uF C312 2313960D07 CAP, 10uF C313 2113945B02 CAP, 10000pF C314 2113945A60 CAP, 1200pF C315 2113945A60 CAP, 1200pF C316 2113945A60 CAP, 1200pF C320 2113743E05 CAP, 0.18uF C321 2313960D07 CAP, 10uF C322 2113945B02 CAP, 10000pF C323 2113944A42 CAP, 150pF C331 2113945B02 CAP, 10000pF C333 2113945B02 CAP, 10000pF C334 2313960D07 CAP, 10uF C400 Not_Placed C401 2113946K02 CAP, 100000pF C402 2113945A09 CAP, 1000pF C403 2113944A40 CAP, 100pF C404 2113945A09 CAP, 1000pF C405 2113944A40 CAP, 100pF C406 2113944A40 CAP, 100pF C407 2113945A09 CAP, 1000pF C408 2113945A09 CAP, 1000pF C409 2113945A09 CAP, 1000pF

Motorola

Part No.

Description

6880309N62-C June, 2005

7-34 VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C)

Circuit

Ref

C410 2313960D07 CAP, 10uF C411 2113946K02 CAP, 100000pF C412 2113945A09 CAP, 1000pF C413 2113946K02 CAP, 100000pF C414 2113946K02 CAP, 100000pF C415 2113945A09 CAP, 1000pF C416 2113945A09 CAP, 1000pF C417 2113945A09 CAP, 1000pF C418 2113946K02 CAP, 100000pF C419 2113945A09 CAP, 1000pF C420 2113945B02 CAP, 10000pF C421 2113945B02 CAP, 10000pF C422 2113945B02 CAP, 10000pF C425 2113946E02 CAP, 1uF C426 2313960B01 CAP, 1uF C430 2113946K02 CAP, 100000pF C431 2113945A09 CAP, 1000pF C432 2113946K02 CAP, 100000pF C433 2113945A09 CAP, 1000pF C440 2113945B02 CAP, 10000pF C441 2113945B02 CAP, 10000pF C442 2113945B02 CAP, 10000pF C443 2113945B02 CAP, 10000pF C444 2113945B02 CAP, 10000pF C445 2113945B02 CAP, 10000pF C446 2113945B02 CAP, 10000pF C447 2113946K02 CAP, 100000pF C451 2113946K02 CAP, 100000pF C452 2113945C31 CAP, 0.10uF C453 2313960B30 CAP, 4.7pF C454 2113945C31 CAP, 0.10uF C455 2113945B04 CAP, 22000pF C456 2113945C31 CAP, 0.10uF C457 2113945C31 CAP, 0.10uF C458 2113945C31 CAP, 0.10uF C459 2113945C31 CAP, 0.10uF C460 2113945C31 CAP, 0.10uF C461 2113946F03 CAP, 4.7uF C462 2113945C31 CAP, 0.10uF C463 2113945C31 CAP, 0.10uF C464 2113945C31 CAP, 0.10uF C465 2113945A09 CAP, 1000pF C466 Not_Placed C467 2113945A60 CAP, 1200pF C470 2113945C31 CAP, 0.10uF C471 2113946N03 CAP, 2.2uF C472 2113945C31 CAP, 0.10uF C473 2113944A42 CAP, 150pF C474 2113944A42 CAP, 150pF C475 2113945B04 CAP, 22000pF C476 2113945B04 CAP, 22000pF

Motorola

Part No.

Description

Circuit

Ref

C477 2113946K02 CAP, 100000pF C478 2113944A42 CAP, 150pF C479 2113944A42 CAP, 150pF C480 2113945C31 CAP, 0.10uF C481 Not_Placed C482 Not_Placed C483 2113946C02 CAP, 0.22uF C484 Not_Placed C488 2113945A05 CAP, 470pF C489 2113945A05 CAP, 470pF C490 2113945A05 CAP, 470pF C492 2113928J08 CAP, 10uF C493 2113945A09 CAP, 1000pF C494 2113946N03 CAP, 2.2uF C495 2113946N02 CAP, 1uF C496 2113946N02 CAP, 1uF C497 2113945C31 CAP, 0.10uF C498 2113946N02 CAP, 1uF C499 2113944A32 CAP, 39pF C500 2113945A09 CAP, 1000pF C501 2113946N02 CAP, 1uF C503 2113945A09 CAP, 1000pF C504 2113945A09 CAP, 1000pF C505 2113945A09 CAP, 1000pF C506 2113945A09 CAP, 1000pF C507 2113945A09 CAP, 1000pF C511 2113944C02 CAP, 220pF C512 2113944A21 CAP, 6.8pF C513 2113944C02 CAP, 220pF C514 2113944A79 CAP, 16pF C518 2113945C31 CAP, 0.10uF C519 2113946N02 CAP, 1uF CR1 4813974A19 Diode Schottky CR41 4815923H01 Diode Schottky CR51 4813974A19 Diode Schottky D51 4815047H01 Switching Diode D52 4815047H01 Switching Diode D120 4880973Z02 Pin Diode D121 4880973Z02 Pin Diode D201 4815072H01 Diode Varactor D220 4815011H01 Diode Triple D221 4815011H01 Diode Triple D251 4813974A01 ISV 228 D261 4813974A01 ISV 228 D262 4885055Y01 Diode Varactor D301 4815713H01 Diode Schottky D414 4816064H01 RH29M19 LH D424 4809924D29 Diode High Voltage D425 4816064H01 RH29M19 LH D440 4805729G49 Diode Red/Yel D470 4809924D29 Diode High Voltage

Motorola

Part No.

Description

Circuit

Ref

D471 4809924D29 Diode High Voltage D491 Not_Placed E451 2480640Z01 Ferrite Bead E452 2480640Z01 Ferrite Bead E453 2480640Z01 Ferrite Bead E500 2480640Z01 Ferrite Bead F301 6515076H01 Fuse Chip SMT FL51 9186801Z01 OSC,XTAL 44.85MHZ FL52 9180468V04 4 Element FLTR FL53 9180469V05 6 Element FLTR FL54 9115811H01 6 Element FLTR J140 0986428Z02 RF Jack J301 0986565Z02 Battery CONN J460 Not_Placed J470 0985818A02 CONN 2 Pin J471 0980683Z03 Audio Jack J491 2815162H01 CONN_P L1 2414015C09 INDCTR, 68nH L2 2414015C09 INDCTR, 68nH L3 2414015C09 INDCTR, 68nH L4 2414015C09 INDCTR, 68nH L21 Not_Placed L22 2414017N24 INDCTR, 100nH L31 2414015C09 INDCTR, 68nH L32 2414015C09 INDCTR, 68nH L33 2414015C09 INDCTR, 68nH L40 2414015C09 INDCTR, 68nH L41 2414015C09 INDCTR, 68nH L51 2414017N26 INDCTR, 150nH L52 2462587V43 INDCTR, 560nH L53 2113944A41 CAP, 120 pF L54 2414015A25 INDCTR, 1200nH L81 2414015A19 INDCTR, 1000nH L100 2414017K32 INDCTR, 560nH L101 2414017K32 INDCTR, 560nH L102 2415429H36 INDCTR, 100nH L103 2415429H25 INDCTR, 30nH L110 2414017K32 INDCTR, 560nH L120 2414017K32 INDCTR, 560nH L121 2415015H01 INDCTR, 47nH L130 2479990N01 INDCTR, 43.67nH L131 2479990N01 INDCTR, 43.67nH L132 2479990N01 INDCTR, 43.67nH L140 2479990M01 INDCTR, 30.54nH L211 2414017K32 INDCTR, 560nH L251 2414017K32 INDCTR, 560nH L252 2414017K32 INDCTR, 560nH L253 2415429H36 INDCTR, 100nH L254 2414015C05 INDCTR, 33nH L255 2414017K29 INDCTR, 330nH L262 2414017K32 INDCTR, 560nH

Motorola

Part No.

Description

Circuit

Ref

L263 2415429H36 INDCTR, 100nH L264 2414015C07 INDCTR, 47nH L265 2414017K29 INDCTR, 330nH L270 2414017K32 INDCTR, 560nH L271 Not_Placed L276 2414017N24 INDCTR, 100nH L281 2414017N22 INDCTR, 68nH L282 2414017N20 INDCTR, 47nH L283 Not_Placed L291 2414017N17 INDCTR, 27nH L292 2414017N22 INDCTR, 68nH L471 2414017K30 INDCTR, 390nH M140 0286427Z01 Nut, Antenna Q21 4815119H01 Transistor Q22 4815267H01 Transistor Q51 4815343H01 Transistor Q70 4815056H01 Transistor Q100 4815119H01 Transistor Q150 4815056H01 Transistor Q170 4809939C34 Transistor Q171 4815056H01 Transistor Q280 4815119H01 Transistor Q311 4815069H02 TP010IT Q312 4815069H02 TP010IT Q313 4815066H01 Transistor Q402 4813973A42 Transistor Q403 4813973A13 XSTR PNP40V Q410 4815066H01 Transistor Q425 4815069H02 TP010IT Q426 4815069H02 TP010IT Q427 4815069H02 TP010IT Q440 4815154H01 Transistor Q470 4815267H01 Transistor Q471 4815066H01 Transistor Q472 4815267H01 Transistor Q481 Not_Placed Q482 Not_Placed Q490 4815066H01 Transistor Q493 4815069H02 TP010IT Q494 4815066H01 Transistor Q520 4815154H01 Transistor R20 0613952Z52 RES, 6.8K R21 0613952Q49 RES, 100 R22 0613952Q93 RES, 6800 R23 0613952Z58 RES, 22K R24 0613952Q70 RES, 750 R25 0613952Q91 RES, 5600 R26 0613952R66 RES, 0 R40 0613952Q73 RES, 1000 R51 0613952Q42 RES, 51 R52 0613952R03 RES, 12K

Motorola

Part No.

Description

June, 2005 6880309N62-C

VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C) 7-35

Circuit

Ref

R53 0613952R13 RES, 33K R54 0613952Q90 RES, 5100 R55 0613952Q61 RES, 330 R57 0613952Q89 RES, 4700 R60 0613952Q82 RES, 2400 R61 0613952R25 RES, 100K R62 0613952Q85 RES, 3300 R63 0613952R15 RES, 39K R64 0613952R08 RES, 20K R65 0613952R15 RES, 39K R66 0613952R08 RES, 20K R67 0613952R08 RES, 20K R72 0613952Q63 RES, 390 R73 0613952Q79 RES, 1800 R74 0613952Q75 RES, 1200 R75 0613952R03 RES, 12K R76 0613952Z55 RES, 12K R77 0613952Z53 RES, 8.2K R78 0613952Q69 RES, 680 R80 0613952Q90 RES, 5100 R81 0613952Q73 RES, 1000 R82 Not_Placed R90 0613952Q42 RES, 51 R91 0613952Q78 RES, 1600 R100 0613952Q60 RES, 300 R101 0613952Q31 RES, 18 R102 0613952Q60 RES, 300 R103 0613952Q85 RES, 3300 R104 0613952H42 RES, 51 R105 0613952Q75 RES, 1200 R106 0613952Q89 RES, 4700 R107 0613952Q53 RES, 150 R110 0613952Q62 RES, 360 R111 0613952R01 RES, 10K R120 0613958H53 RES, 150 R121 0613958H53 RES, 150 R150 0680539Z01 RES, 0.1 R151 0613952H33 RES, 22 R152 0613952P01 RES, 100K R153 0613952P01 RES, 100K R154 0613952P01 RES, 100K R155 0613952P01 RES, 100K R156 0613952Q61 RES, 330 R157 0613952Q91 RES, 5600 R158 0613952Q77 RES, 1500 R162 0613952R01 RES, 10K R171 0613952Q93 RES, 6800 R202 0613952R29 RES, 150K R205 0613952Q49 RES, 100 R206 Not_Placed R212 0613958J74 RES, 0

Motorola

Part No.

Description

Circuit

Ref

R220 0613952Q53 RES, 150 R221 0613952Q53 RES, 150 R223 0613952Q49 RES, 100 R227 0613952R29 RES, 150K R230 0613952R26 RES, 110K R243 0613952Q79 RES, 1800 R244 0613952Q42 RES, 51 R245 0613952Q77 RES, 1500 R246 0613952R25 RES, 100K R247 0613952R30 RES, 160K R248 0613952Q42 RES, 51 R253 0613952Q41 RES, 47 R254 0613952Q57 RES, 220 R255 0613952Z46 RES, 3.9K R261 0613952R14 RES, 36K R262 0613952Q93 RES, 6800 R263 0613952Q36 RES, 30 R264 0613952Q57 RES, 220 R270 0613952Q31 RES, 18 R271 0613952Q95 RES, 8200 R272 0613952Q96 RES, 9100 2 R273 0613952Q60 RES, 300 R274 0613952Q37 RES, 33 R275 0613952R66 RES, 0 R276 0613952Q73 RES, 1000 R280 0613952Q93 RES, 6800 R281 0613952Q96 RES, 9100 2 R282 0613952Q70 RES, 750 R283 0613952Q55 RES, 180 R284 0613952Q69 RES, 680 R286 0613952R66 RES, 0 R310 0613952R25 RES, 100K R311 0613952R25 RES, 100K R312 0613952R08 RES, 20K R313 0613952Q90 RES, 5100 R320 0613952Z80 RES, 330K R321 0613952P30 RES, 200K R322 0613952R25 RES, 100K R400 Not_Placed R401 0613952R36 RES, 300K R402 0613952R01 RES, 10K R403 0613952R01 RES, 10K R404 0613952R18 RES, 51K R405 0613952R36 RES, 300K R406 0613952R33 RES, 220K R407 0613952R25 RES, 100K R408 0613952R25 RES, 100K R409 0613952Q73 RES, 1000 R410 0613952R01 RES, 10K R411 0613952Q71 RES, 820 R412 0613952R25 RES, 100K

Motorola

Part No.

Description

Circuit

Ref

R413 0613952R25 RES, 100K R414 0613952R13 RES, 33K R415 0613952R13 RES, 33K R416 0613952R08 RES, 20K R417 0613952R01 RES, 10K R418 0613952R25 RES, 100K R419 0613952Q89 RES, 4700 R420 0613952P30 RES, 200K R421 0613952P01 RES, 100K R422 0613952R25 RES, 100K R423 0613952R25 RES, 100K R424 0613952P30 RES, 200K R425 0613952P01 RES, 100K R430 0613952R25 RES, 100K R431 Not_Placed R432 0613952R66 RES, 0 R433 0613952R25 RES, 100K R434 Not_Placed R440 0613952Q89 RES, 4700 R441 0613952Q89 RES, 4700 R442 0613952H57 RES, 220 R443 0613952H51 CHIP RES 120 R445 0613952Q89 RES, 4700 R446 0613952R01 RES, 10K R451 0613952R17 RES, 47K R460 0613952R10 RES, 24K R462 0613952R10 RES, 24K R463 0613952R10 RES, 24K R464 0613952R12 RES, 30K R469 0613952Q25 RES, 10 R470 0613952Q81 RES, 2200 R471 0613952Q81 RES, 2200 R472 0613952Q69 RES, 680 R473 0613952Q69 RES, 680 R474 0613952H61 RES, 330 R475 0613952R31 RES, 180K R476 0613952R25 RES, 100K R477 0613952Q81 RES, 2200 R478 0613952Q81 RES, 2200 R479 0613952R25 RES, 100K R480 0613952G67 RES, 0 R481 Not_Placed R482 Not_Placed R483 Not_Placed R484 Not_Placed R485 Not_Placed R486 Not_Placed R487 0613952R66 RES, 0 R488 0613952R37 RES, 330K R489 Not_Placed R490 Not_Placed -

Motorola

Part No.

Description

Circuit

Ref

R491 0613952R66 RES, 0 R492 0613952R10 RES, 24K R493 0613952R37 RES, 330K R494 0613952Z80 RES, 330K R495 0613952Q91 RES, 5600 R496 Not_Placed R497 Not_Placed R498 Not_Placed R499 Not_Placed R501 0613952Q49 RES, 100 R502 0613952Q49 RES, 100 R503 0613952Q49 RES, 100 R504 0613952Q49 RES, 100 R505 0613952Q49 RES, 100 R506 0613952Q49 RES, 100 R507 0613952Q49 RES, 100 R508 0613952R25 RES, 100K R509 0613952R25 RES, 100K R510 0613952R37 RES, 330K R511 0613952R25 RES, 100K R512 0613952R29 RES, 150K R513 Not_Placed R514 0613952R25 RES, 100K R515 Not_Placed R516 Not_Placed R517 0613952R66 RES, 0 R518 0613952R33 RES, 220K R519 0613952R25 RES, 100K R520 0613952R25 RES, 100K R521 Not_Placed R522 0613952R25 RES, 100K R523 0613952R01 RES, 10K R524 0613952R01 RES, 10K S440 4080710Z24 Switch

S441 4070354A01 Switch S442 4070354A01 Switch S443 4070354A01 Switch S444 1880619Z04 Potentiometer SH1 2686421Z02 Shield SH40 2686419Z02 Shield SH50 2686423Z02 Shield SH52 2686424Z02 Shield SH100 2686418Z02 Shield SH200 2686424Z02 Shield SH201 2686423Z02 Shield SH250 2686425Z02 Shield SH251 2686425Z02 Shield SH253 2686422Z02 Shield SH400 2686420Z03 Shield SH401 2686420Z03 Shield

Motorola

Part No.

4080710Z26 Switch

Description

6880309N62-C June, 2005

7-36 VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C)

Circuit

Ref

T41 2515121H01 Balun Transformer T42 2515121H01 Balun Transformer U51 5115281H01 SA616 U52 5115070H01 TC7W04FU U110 0178034A01 PA Module U150 5114005A01 LM2904DR U151 2415954H01 INDCTR Bead U201 5185177Y01 AT25016 U251 5105750U56 VCO Buffer IC U310 5115746H01 Voltage Regulator U320 5115679H01 Voltage Regulator U330 5115745H01 Voltage Regulator U401 5185143E03 68HC11FLO U402 5115033H01 EEPROM IC U403 Not_Placed U404 5115032H01 Flash 128K U425 5115697H01 OP AMP U451 5115062H01 IC ASFIC_CMP_R1 U480 Not_Placed U490 9115811H03 Audio Amplifier U510 5114005A01 LM2904DR U511 4815066H01 Transistor VR110 4813977A59 Diode Zener VR301 4813977M29 Diode 20V VR302 4813977M29 Diode 20V VR471 4813977M14 Diode 6.8V VR472 4813977M05 Diode 3.3V VR473 4813977M29 Diode 20V VR474 4813977M29 Diode 20V VR475 4813977M24 Diode Zener Y51 4802245J84 XTAL 44.395MHz Y70 9186145B02 CDBCA455CX36-TC Y201 4880114R06 Crystal 16.8MHZ Y202 Not_Placed -

Motorola

Part No.

Description

June, 2005 6880309N62-C

VHF (146-174 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486342Z09-A) 7-21

Chapter 7 VHF (146-174 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486342Z09-A)

USWB+ 5V

USWB+

5T

5V

5T

CONTROLLER

3V5R

USWB+

3V

5R

TX_ENA

PWR_SET

DEMOD

BW_SEL

RSSI

MOD_OUT

16_8_MHZ

SYNTH_CS

SPI_CLK

SPI_DATA_OUT

LOC

5V

3V

5V

MOD_IN

16_8_MHZ

SYNTH_CS

SYNTH_VHF_R2

SPI_CLK

SPI_DATA_OUT

K

LOCK

DEMOD

BW_SEL

RSSI

PRESC

V_STEER

V_SF

VCO_MOD

TRB

5V 5R

5V

RX_B

E

IF_IN

PRESC

V_STEER

V_SF

VCO_VHF_R

VCO_MOD

TRB

5R

IF_OUT RX_IN

RX_FE_VHF_R2

3V5R

3V

RX_INJ

2

TX_INJ

5R

RX_INJ

TX_ENA

PWR_SET

RX_OUT

TX_VHF_R2

5T

USWB+

TX_INJ

Figure 7-27. VHF (146-174 MHz) Radio Circuit Block Interconnect Diagram (8486342Z09-A)

6880309N62-C June, 2005

7-22 VHF (146-174 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486342Z09-A)

5.0 V (RX)

3.95 V (RX)

0 V (TX)

2.0 V (RX)

R21 150

3.95 V (RX)

L22 100nH

C26

1000pF

C25

1000pF

R51 51

L52 560nH

500 mV (RF)

IF_OUT

5R

3.38 V (RX)

FE_5R

R20

6.8K 1%

Q22

14

UMT1

25

63

RX_IN

128 mV (RF)

C2 36pF 1%

C1 22pF 1%

L1 68nH 2%

C4 15pF

1%

C3 47pF 1%

C5

3.0pF

0.1%

68nH 2%

C6 15pF

1%

L3 68nH 2%

L4 68nH 2%

C7 33pF 1%

C20

1000pF

C8

R26

30pF

0

1%

132

CR1 MMBD352

C9L2

NU

L21

R23 22K 1%

C22 1000pF

R22

6.8K

C23

1000pF

125 mV (RF)

C24 NU

C99

0.1uF

R24 750

0.74 V (RX)

1

R25

5.6K

700 mV (RF)

3.9 V (RX)

43pF 1%

3

2

Q21 BFS540

RX_INJ

705 mV (RF)

C30 24pF 1%

C31 30pF 1%

C40 20pF 1%

C41 15pF 1%

L31 68nH

2%

C32 56pF 1%

L40

68nH 2%

C33C29 24pF 1%

C42 36pF 1%

L41 68nH

2%

L32 68nH 2%

C34 56pF 1%

C35 27pF 1%

C43 15pF 1%

C44 20pF 1%

L33 68nH

2%

C36 24pF 1%

445 mV (RF)

R40 1K

1

TP1

TP2

1

485 mV (RF)

4

6

RF BALUN

T41

4

6

IF BALUN

T42

L51

150nH

3

2

1

5

NC

3

2

1

5

NC

3

IO3

IO1

IO2

C51 82pF

1

2

IO4

CR41

4

SH1

SHIELD

1

SH40

SHIELD

1

Figure 7-28. VHF (146-174 MHz) Receiver Front End Schematic Diagram (8486342Z09-A)

June, 2005 6880309N62-C

VHF (146-174 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486342Z09-A) 7-23

0 V (25 kHz)

BW_SEL

3V (25kHz) 0V (12.5kHz)

R61 100K

5V

130 mV (RF)

5 V (12.5 kHz)

62

U52-2 TC7W04F

C69

0.1uF

17

U52-1 TC7W04F

FL52 FLTR

1

IN

OUT

3.3K

R62

R65

D51

C62

0.1uF

39K

1 V (25 kHz)

0 V (12.5 kHz)

2

1

0 V (25 kHz)

1 V (12.5 kHz)

170 mV (RF)

C68

0.1uF

0.33 V

3

R60

2.4K

2

R63 39K

1

5 V (25 kHz)

0 V (12.5 kHz)

FL53 CFWC455E

GND1

FL54

CFWC455G

GND1

2

OUT

GND2

2

OUT

2.8 V (12.5 kHz)

GND2

4

IN

34

IN

3

R64 20K

0 V (25kHz)

R66 20K

16 mV (RF)

2.8 V (25 kHz) 0 V (12.5 kHz)

1

2

D52

C63

0.1uF

5V

8

VCC

GND 4

U52-4 PWR_GND

2.14 V

3

R67

20K

35

U52-3 TC7W04F

NC

5V

IF_IN

500 mV (RF)

C52 18pF

C53

9.1pF

1.1%

3

2

5

IN

CC1

CC2

SH50

SHIELD

1

GND14GND2

1

OUT

FL51 MXF45

44.85MHz

5V

6

SH52

SHIELD

1

320 mV (RF)

5V

L53 680nH

C93

3.6pF

R91

1.6K

0.1uF

R52 12K

C55

3.39V

C56

0.1uF

R53

33K

4.7K

390 mV (RF)

0.74V

R54

1

Q51 PBR941

R55 330

550 mV (RF)

3.05V

3

2

C57

0.1uF

132

3.9pF

CR51

C58

C59

2.7pF

0.1uF

C60

GND

3

9186471Z01

C90

0.1uF

L54

1.2uH

2%

5V

R90

290 mV (RF)

R82 0

110 mV (RF)

51

C91 10uF

R57

4.7K

C81

30pF

1%

R81

0.1uF

C92

C64

0.1uF C65

0.1uF

19

17

14

13

16

IFAMPOUT

IFAMP_DEC2

OSCIN

RSSIOUT

5

LIMIN

LIM_DEC1

AUDIO_FEED

7

12

LIM_DEC2

AUDIOOUT

8

20

18

MIXOUT

IFAMPIN

IFAMP_DEC1

VCC

6

OSCOUT

RFIN

RFIN_DEC

4

3

1

2

C66

0.1uF

11

LIMOUT

RSSI_FEED

9

GND

10

15

QUADIN

C67

0.1uF

U51

SA616

1.23V

R73

1.8K

R72 390

Q70 MMBT3904

3

1

0.62 V

2

165 mV (RF)

C70 130pF

R74

1.2K

2

1

Y70

3

45B02 455KHz

C71

0.1uF

2.1V @ -47 dBm @ antenna

R75

12K

R80

C80

15K

30pF

1%

R77

8.2K

Y51

44.395MHz

06B09

3

OUT IN

GND4GND1

C82 NU

L81 NU

2

1

R76 12K 1%

490 mV (RF)

1%

R78 680

1.5V

C73

4700pF

100 mV RMS (25 kHz)

50 mV RMS (12.5 kHz)

DEMOD

C72

0.1uF

RSSI

Figure 7-29. VHF (146-174 MHz) Receiver Back End Schematic Diagram (8486342Z09-A)

6880309N62-C June, 2005

7-24 VHF (146-174 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486342Z09-A)

4.5V

V_SF

PRESC

SPI_DATA_OUT

MOD_IN

SYNTH_CS

SPI_CLK

R230 200K

R247 270K

C231 1000pF

C232

0.1uF

C233

4.7uF

LOCK: 3V UNLOCK: 0V

LOCK

44

33

6

NC3

NC2

NC1

CCOMP

REFSEL

PREIN

SFBASE

SFCAP

BIAS2

BIAS1

VBPASS

PVREF

SFIN

DATA

MODIN

CEX

CLK

C214

1000pF

5

DGND

PD_VDD

PRE_VDD

34

22

20

U201

AGND

AVDD

63A27

36

PD_GND

PRE_GND

ADAPTSW

VRO

DVDD

47

13

WARP

INDMULT

SFOUT

LOCK

IADAPT

IOUT

TEST2

TEST1

AUX4

AUX3

AUX2

AUX1

VMULT4

VMULT3

VMULT2

VMULT1

MODOUT

FREFOUT

XTAL2

XTAL1

VCP

25

16

28

46

4

45

43

38

37

3

2

1

48

11

12

14

15

41

19

24

23

205 mV (RF)

C202 62pF 1%

NC

C206 NU

3

OUT

44 mV (RF)

16.8MHz

GND1

4

C201 220pF

GND

2

C211

0.1uF

R206 NU

IN

14R06

TX: 3V

RX: 0V

1

Y201

5V

TRB

Y202

45J68

C204 470pF

3.0V to 9.0V

R245

1.5K

C243

0.1uF

VCO_MOD

R220

150

C220 22pF

3V

0V

C205

NU

16_8_MHZ

TP200

1

R246 100K

R202 150K

4

VCC

3

OUT

16.8MHz

1

VCON

GND

2

R205

100

107 mV (RF)

R221

150

C221 .01uF

3V

0V

C222 .01uF

C223 .01uF

R243

2K

R244 51

TP240

1

C245 1uF

3

K3

2

K2

1

K1

C244 1200pF

4

A3

5

A2

6

A1

D220

R223

100

C218

2.2uF

V_STEER

C219

0.1uF

NU

C224 .01uF

3

NC

K3

2

K2

1

K1

4

A3

NC

5

A2

6

A1

D221

D201

2.4 V (TYP)

C203

2.7pF

3.7%

31

NC

29

NC

17

NC

42

NC

C210 470pF

C213

.01uF

18

NC

32

27

NC

26

39

40

21

NC

35

NC

30

7

10

9

8

C241 1200pF

R248 51

C230

2.2uF

C208

C207 470pF

3V

470pF

L211

560nH

C209 470pF

C212

2.2uF

R227 150K

C228

0.1uF

C227 1000pF

C226 10uF

C225 10uF

5V

SH200

SHIELD

1

5V

C215

2.2uF

SH201

SHIELD

1

R212 0

C216

0.1uF

C217

1000pF

Figure 7-30. VHF (146-174 MHz) Synthesizer Schematic Diagram (8486342Z09-A)

June, 2005 6880309N62-C

VHF (146-174 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486342Z09-A) 7-25

V

L254 33nH 2%

L264 47nH 2%

V_SF

51K

R261

C255 18pF 1%

C268

2.7pF

3.7%

C257 36pF 1%

L270 560nH

1SV229

C270 1200pF

D262

C271 .01uF

C256 10pF

1.0%

V_SF

R273 300

R270 18

C273

L265 330nH

C258 1200pF

R264 220

R263 30

RX: 0V TX: 3V

.01uF

R274

R254 220

33

C267 36pF 1%

C266 10pF

1.0%

L271 NU

R253 47

L255

330nH

C265 15pF 1%

R262

6.8K

TRB

3V

C272

0.1uF

R272

9.1K

R271

8.2K

C269 1500pF

R275

0

16

15

20

19

C275 1200pF

1

TX_IADJ

2

RX_IADJ

3

SUPER_FLTR

4

COLL_RFIN

5

RX_BASE

6

RX_EMITTER

TX_BASE

TX_EMITTER

FLIP_IN

TRB_IN

14

VCC_BUFFERS

U251

GND_BUFFERS

GND_FLAG

9

11

1817

VCC_LOGIC

GND_LOGIC

50U54

TX_OUT

RX_OUT

PRESC_OUT

RX_SWITCH

TX_SWITCH

V_SF

C274

0.1uF

10

8

12

7

13

R276 1K

C285

0.1uF

L282 47nH

L276 100nH

286 mV (RF)

5R

C286 11pF

C277 1200pF

L283

NU

NC

C276

5.1pF

VCO_5R

R284 330

C284 1200pF

C292 1200pF

R286 0

L292

68nH

L281 68nH

R281

9.1K

PRESC

C290 51pF

R280

6.8K

L291 27nH

C281 1200pF

1.89 V (RX)

R282 750

1

R283 180

1220 mV (RF)

C291 36pF

3

Q280 BFS540

2

850 mV (RF)

C282

9.1pF

1.35 V (RX)

C283 1200pF

TX_INJ

RX_INJ

4.5V

V_SF

D251

L252

560nH

L253

100nH

C253 16pF 1%

C254

3.3pF

3.0%

3.0V to 9.0V

_STEER

L251 560nH

C251 .01uF

L262

560nH

D261

C263 27pF 1%

L263

100nH

C264

4.7pF

2.1%

VCO_MOD

SH250

SHIELD

1

SH251

SHIELD

1

SH253

SHIELD

1

Figure 7-31. VHF (146-174 MHz) Voltage Controlled Oscillator Schematic Diagram (8486342Z09-A)

6880309N62-C June, 2005

7-26 VHF (146-174 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486342Z09-A)

T

1

R158

1.5K

7.5 V

2

Q170

TP0101T

3

C157

0.1uF

C154

C159 1500pF

1500pF

R157

5.6K

3

Q150

2

R156 330

4.25 V (Hi)

3.1 V (Lo) (TYP, TX)

C155

0.1uF

2

8

1

3

4

U150-1

LM2904

R162 10K

C158 1500pF

L110 560nH

0 V (RX)

6.78 V (TX)

R152 100K 1%

C150 1500pF

C115 1uF

R153 100K 1%

R155 100K 1%

R154 100K 1%

C116

0.1uF

R151 22

U151

57R01

R150

0.1

L120

560nH

R120 39

R121 39

R122 39

C120 1500pF

1.7 V (TX) 0 V (RX)

C121 1500pF

C151 1500pF

6

8

1

C153

0.47uF

7

5

4

U150-2

LM2904

C113 1500pF

C152 1500pF

USWB+

R170 100K

C170 1500pF

C156 .01uF

TX_ENA

0 V (RX)

3.3 V (TX)

1

2

4.15 V (Lo) (TYP, TX)

7.5 V (RX) 0 V (TX)

3

Q171

DTC144EKA

5.8 V (Hi)

2.6 V (Hi)

1.79 V (Lo) (TYP, TX)

TP150

R171 22K

1

PWR_SET

R110

5T

820

X_INJ

820 mV (RF)

R100

R105

1.2K

R103

3.3K

R107 150

C102

0.1uF

1.5 V (TX)

1

L100

560nH

1500 mV (RF)

4.9 V (TX)

3

Q100 BFS540

2

R104 51

C109

0.1uF

C103 1500pF

C100 1500pF

C104 NU

L102 100nH

SHIELD

R101

18

300

R102 300

C114 1500pF

SH100

C171

2.7pF

R106

4.7K

L101

560nH

C111 NU

C101 1500pF

C105 NU

C108

0.1uF

R111

2.7K

L103 30nH

C110

0.1uF

C107 10pF

C106

1500pF

C112 1500pF

1100 mV (RF)

VR110

5.6V

NU

2

VGG

RFIN1RFOUT

3

VDD

GND

5

U110 RA07M1317M_VHF

DO NOT MEASURE

4

C117 1000pF

D120 MA4PH261

0.9 V (TX) 0 V (RX)

C118

C131

3.3pF

NU

L130

C130 12pF

43.67nH

L121 47nH

C122 15pF

D121 BAR63-02W

C132 27pF

C123 15pF

C133

3.3pF

43.67nH

L131

C134 27pF

C124 1500pF

C135

3.9pF

L132

43.67nH

C136 13pF

C137 200pF

RX_OUT

C140 13pF

C141 18pF

NC

L140

30.54nH

S1

S2

G1

G2

T1

T2

M140 ANTENNA_NUT

1

TAB1

2

TAB2

J140

TAB3

TAB4

3

NC

4

NC

1

Figure 7-32. VHF (146-174 MHz) Transmitter and Power Control Schematic Diagram (8486342Z09-A)

June, 2005 6880309N62-C

VHF (146-174 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486342Z09-A) 7-27

SW_B+

5V

3V

5V

VOX

SW_B+

AUDIO

HSIO

LSIO

EXT_MIC_PTT

BOOT_ENA

F1200

uP_CLK

ASFIC_CS

RESET

SCI

PWR_SET

DEMOD

BW_SEL

MOD_OUT

16_8_MHZ

BATT_CHARGE

TP403

TP404

PWR_SET

DEMOD

BW_SEL

MOD_OUT

16_8_MHZ

SPI_CLK

SPI_DATA_OUT

SYNTH_CS

LOCK

RSSI

TX_ENA

D3_3V

NU

1

NU

3NU4

NU

5

NU

7

NU

9

NU

11

NU

13

NU

15

NU

17

NU

19

NU

21

NU

23

NU

25

NU

27

J460-1 ACCESSORY/KEYPAD CONNECTOR

OPT_MIC

OPT_TX_AUD_FLAT_RETURN

OPT_TX_AUD_RETURN

OPT_TX_AUD_SEND

OPT_RX_AUD_SEND_DETECTOR

OPT_RX_AUD_SEND_UNMUTED

OPT_RX_AUD_RETURN

VS_AUDIO_SEL

VS_GAIN_SEL

NU

2

NU

6

NU

8

NU

10

NU

12

NU

14

NU

16

NU

18

NU

20

NU

22

NU

24

NU

26

NU

28

C500 1000pF

3V

E500 BK1005HM471

C501 1uF

R504 100

R505 100

VS_RAC

SPI_CLK

R502 100

SPI_DATA_OUT

R501 100

SQ_DET

CH_ACT

1

3A2

S441 SWITCH

1

3

S442 SWITCH

1A1

3

S443 SWITCH

R503 100

OPT_DATA_READY

BACKLIGHT

KEYPAD_ROW

KEYPAD_COL

DISPL_COM_DATA_SEL

DISP_ENA

OPT_ENA

VS_CS

VS_INT

2

B1

A1

4B2

2

A1

B1

4

B2

A2

S440 SWITCH

2B1

4

A2

B2

8

1

PC0

2

PC1

4

PC2

PC3

C0

C1

GND7GND1

9

PTT

OPT_BUTTON_1

OPT_BUTTON_2

FREQ_SEL_0

FREQ_SEL_1

FREQ_SEL_2

FREQ_SEL_3

D3_3V

SW_B+

5V

USWB+

5V

D3_3V

SW_B+

SPI_CLK

SPI_DATA_IN

SPI_DATA_OUT

SQ_DET

CH_ACT

VOX

LSIO

HSIO

BOOT_ENA

EXT_MIC_PTT

F1200

uP_CLK

ASFIC_CS

RESET

SCI

BATT_DETECT

TP301

SW_B+

5R

5V

3V D3_3V

5T

USWB+

5V

5R

5T

MICROPROCESSOR

SYNTH_CS

LOCK

RSSI

TX_ENA

RX_ENA

VOLUME

ON_OFF

SWB+

USWB+

RESET

BATT_CHARGE

RX_ENA

DC_REGULATION

VOLUME

ON_OFF

TX_ENA

5V

3V

5T

5R

D3_3V

3V

Figure 7-33. VHF (146-174 MHz) Controller Interconnect Schematic Diagram (8486342Z09-A)

6880309N62-C June, 2005

7-28 VHF (146-174 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486342Z09-A)

D3_3V

SH400

SHIELD

R416 20K

1

TP402

R410 10K

D3_3V

C412 1000pF

R412 100K

6

1

3

7

5

U402 X25128-2.7 EEPROM

8

SCK

CS

WP

HOLD

SI

4

C413

0.1uF

VCC

2

SO

VSS

C411

C410

0.1uF

10uF

SPI_DATA_IN

SPI_DATA_OUT

SPI_CLK

ASFIC_CS

SYNTH_CS

SW_B+

BACKLIGHT

NC

ON_OFF

DISP_ENA

DISPL_COM_DATA_SEL

D3_3V

C430

0.1uF

U404

AT49LV001N_70VI

FLASH

D(0)

D(1)

D(2)

D(3)

D(4)

D(5)

D(6)

D3_3V

D(7)

R431

NU

SH401

SHIELD

1

R433 100K

C431 1000pF

8

30

VCC EN_CE

32

EN_OE

7

EN_WE

9

RESET

21

D0

22

20

D1

A0

23

D2

A1

25

D3

A2

26

D4

A3

27

A4

D5

28

A5

D6

29

A6

D7

A7

6

NC

A8

A9 A10 A11 A12 A13 A14 A15 A16

GND

24

A(0)

19

A(1)

18

A(2)

17

A(3)

16

A(4)

15

A(5)

14

A(6)

13

A(7)

3

A(8)

2

A(9)

31

A(10)

1

A(11)

12

A(12)

4

A(13)

5

A(14)

11

A(15)

10

A(16)

R432 0

A(17)

A(18)

R434 NU

Q402

D(7:0)

A(18:0)

D3_3V

C432

0.1uF

R430 100K

11

D(0)

12

D(1)

13

D(2)

15

D(3)

16

D(4)

17

D(5)

18

D(6)

19

D(7)

U403 NU

SRAM

C433 1000pF

28

10

A(0)

A0

9

VDD

A(1)

A1

8

A(2)

A2

7

A(3)

A3

6

A(4)

A4

5

A(5)

A5

4

A(6)

D1

A6

3

A(7)

D2

A7

25

A(8)

A8

D3

24

A(9)

A9

D4

21

A(10)

D5

A10

23

A(11)

D6

A11

2

A(12)

D7

A12

26

A(13)

D8

A13

1

A(14)

A14

20

CS

22

OE

27

WE

VSS

14

2

3

PD6_LVIN

6

NC

PG0_XA13

16

PG1_XA14

A(14)

20

PG2_XA15

A(15)

19

PG3_XA16

A(16)

17

PG4_XA17

A(17)

18

PG5_XA18

A(18)

5

NC

PG6_AS

47

PH0_PW1

46

PH1_PW2

45

PH2_PW3

44

PH3_PW4

43

PH4_CSIO

42

PH5_CSGP1

41

PH6_CSGP2

38

PH7_CSPROG

30

PC0_DATA0

D(0)

31

PC1_DATA1

D(1)

32

PC2_DATA2

D(2)

33

PC3_DATA3

D(3)

34

PC4_DATA4

D(4)

35

PC5_DATA5

D(5)

36

PC6_DATA6

D(6)

37

PC7_DATA7

D(7)

5V

97

98

99

100

1

PD5_SS

PD1_TXD

PD0_RXD

PD4_SCK

PD2_MISO

PD3_MOSI

PF7_ADDR729PFO_ADDR0

22

A(3)

A(4)

A(5)

A(6)

A(7)

Q440-1

4

Q440-2

3

R442

RED LED

85

86

PA7_PA1_OC1

PA6_OC2_OC1

PF1_ADDR127PF2_ADDR226PF3_ADDR325PF4_ADDR424PF5_ADDR523PF6_ADDR6

28

A(1)

A(2)

2

83

84

PA4_OC4_OC1

PA5_OC3_OC1

A(0)

1

6

GREEN LED

82

PA3_IC4_OC5_OC1

NC

R443 120220

D440 BRPY1204W

TP405

6

1

2

4

3

Q410

NC

91

68

79

90

VRL

XTAL

EXTAL

PA0_IC380PA1_IC281PA2_IC1

U401

MC68HC11FL0

PB6_ADDR147PB7_ADDR1514PBO_ADDR8

PB1_ADDR911PB2_ADDR109PB3_ADDR1121PB4_ADDR1215PB5_ADDR13

8

10

A(8)

A(9)

A(10)

A(11)

A(12)

A(13)

5

R440

4.7K

R441

4.7K

R417 10K

C418

0.1uF

C419 1000pF

SCI

R411 820

R419

4.7K

1

TP401

LSIO

CH_ACT

SQ_DET

HSIO

OPT_DATA_READY

uP_CLK

D3_3V

R418 100K

C414

0.1uF

NC

93

12

39

88

92

69

95

XFC

VDD

VRH

VDDR

LVOUT

VDDSYN

MODB_VSTBY

PI055PI154PI253PI352PI451PI5

PI649PI7

13

56

50

59

VDDL

AVDD

PG7_R_W

MODA_LIR

PJ0_CSGP3

PJ1_CSGP4

PE0_AN0

PE1_AN1

PE2_AN2

PE3_AN3

PE4_AN4

PE5_AN5

PE6_AN6

PE7_AN7

VSS40VSSL87VSSR

C415

1000pF

89

NC

ECLK

96

IRQ

48

XIRQ

94

RESET

4

58

57

71

72

73

PJ2

74

PJ3

75

PJ4

76

PJ5

77

PJ6

78

PJ7

67

66

65

64

NC

63

62

61

60

AVSS

70

1000pF

R413

C416

100K

R415 33K

NC

D414

C445C446

.01uF

C417 1000pF

R414 33K

F1200

RESET

BOOT_ENA

PTT

EXT_MIC_PTT

FREQ_SEL_0

FREQ_SEL_1

FREQ_SEL_2

FREQ_SEL_3

OPT_BUTTON_1

OPT_BUTTON_2

C440

C441

.01uF

C442

.01uF

C444

C443

.01uF

SW_B+

R420 200K 1%

C420

R421

.01uF

100K 1%

SW_B+

C447

0.1uF

VOLUME

C422

.01uF

BATT_DETECT

R424 200K 1%

R425 100K 1%

D3_3V

RSSI

R422

100K

R423

100K

VOX

KEYPAD_COL

KEYPAD_ROW

LOCK

C421

.01uF

VS_INT

VS_CS

OPT_ENA

TX_ENA

RX_ENA

Figure 7-34. VHF (146-174 MHz) Microprocessor Circuitry Schematic Diagram (8486342Z09-A)

June, 2005 6880309N62-C

VHF (146-174 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486342Z09-A) 7-29

)

150 mV RMS (25 kHz) (RX)

E451

BK1005HM471

5V

R515

3V_A

C452

0.1uF

NU

75 mV RMS (12.5 kHz) (RX)

C453

0.1uF

C457

C456

0.1uF

R451 47K

5V_B

E452

BK1005HM471

5V_A

C455 .022uF

13

14

15

16

17

18

19

20

21

22

23

24

GCB2

GCB1

GCB0

CHACT

SQDET

LSIO

HSIO

CSX

CLK

DATA

GNDSYN

LCAP

C458

0.1uF

C459

0.1uF

C518

0.1uF

5V_A

E453

BK1005HM471

12

25

SQCAP

PLCAP2

NC

11

26

10

VDDDAC

NC

3

1

2

Q520

C460

0.1uF

R521 100K

3V_A

C454

0.1uF

7

9

8

1

3

6

5

28

SQIN

SYN

PLCAP

30C53

U451

F1200

30

29

VOX

DACR4DACU

DACG

GNDDO

VDDCP33VDDD

GNDD34CLK168

32

31

2

DISC

VDDA

GNDA

MICEXT

GNDRC

MICINT

VDDRC

TXSND

RXRTN

AUXTN

AUDIO

MOD

RXSND

GCB5

GCB4

GCB3

TXRTN

35

36

UIO

VDDSYN

27

R520 100K

3V_A

R460 24K

R462 24K

3V_A

48

NC

47

46

45

44

43

42

41

40

39

38

37

C464

0.1uF

C461 1000pF

C462

0.1uF

R464 30K

C463

0.1uF

R463 24K

C465 1000pF

VS_GAIN_SEL

114 mV (RF)

F1200

1.5 V

uP_CLK

5V_A

C497

0.1uF

Not_Placed:NU

Q481

Not_Placed:NU

C481 .01uF

R481 100K

2

1

5V_B

R482 180K

2

3

C482

3

.01uF

R483 180K

R486 100K

OPT_RX_AUD_SEND_DETECTOR

OPT_RX_AUD_RETURN

OPT_RX_AUD_SEND_UNMUTED

OPT_TX_AUD_FLAT_RETURN

OPT_TX_AUD_SEND

OPT_TX_AUD_RETURN

C467 1200pF

200 mV RMS

C466 NU

5V_B

8

1

U480-1

4

LM2904

Not_Placed:NU

R485 100K

3 V (UNSQ)

R470

2.2K

VR471

NC

R472 680

1.5 V

C470

0.1uF

3V

R474 330

1

4

C471

2.2uF 25

R476 100K

C472

0.1uF

6

R475 180K

3

Q470

MOD_OUT

0 V (RX)

3 V (TX)

R479 100K

R494 330K

1

3

2

4

C492

2.2uF

0.15 V (UNSQ)

C498 1uF

C494

2.2uF

C495 1uF

7.5 V

MODE

INPOS

SVR

INNEG

R498 47K

SW_B+16_8_MHZ

C493

145 mV RMS

R487 0

C483

0.1uF

R491

R484

2.2K

C484 .033uF

Not_Placed:NU

3

1

2

Q482

0

R490

2.2K

Not_Placed:NU

1000pF

C499 82pF

R493 330K

R492

24K

6

1

2

4

3

R495

5.6K

Q490

R477

2.2K

C474 150pF

EXT_MIC_PTT

6

VCC

5

OUTNEG

8

OUTPOS

GND

7

U490 TDA8541

NC

D471

L471 390nH

D491

C473 150pF

C488 470pF

C489 470pF

7

VR473

MMBZ5250B

20V

VR475

MMBZ5245B

15V

8

4

VR472

NC

D470

3.5 V (UNSQ)

R497 1MEG

U480-2

LM2904

5V

R255

3.9K

1%

R478

2.2K

6

5

3V_A

R480 0

1

4

25

R471

2.2K

3

6

C477

0.1uF

BATT_CHARGE

NC

C475 .022uF

C476 .022uF

R496 10K

Not_Placed:NU

SCI

1

2

J470-1

MICROPHONE CONNECTOR

5V_B

R499 270K

NC

D492

C496 1uF

R473 680

Q472

1

RESET

6

2

BOOT_ENA

4

3

Q471

OPT_MIC

VR474

MMBZ5250B

10 mV RMS (TX)

20V

NC

S2

4

S4

5

S3

6

S1

7

M2

2

M3

3

M1

1

J471

ACCESSORY CONNECTOR

1

2

J491-2 INTERNAL SPEAKER

3.46 V RMS (RX) (0.5 W @ 24 OHMS

DEMOD

R516

NU

C512

6.8pF R512

150K

R511 100K

5V_A

R518 220K

C511 220pF

2

3

U510-1 LM2904

2.3 V

8

R513

1

NU

4

C513 220pF

C514 16pF

6

5

U510-2 LM2904

R514 100K

8

7

4

R517

C451

0.1uF

0

R519 100K

C519 1uF

VS_AUDIO_SEL

VS_RAC

PWR_SET

VOX

BW_SEL

CH_ACT

SQ_DET

LSIO

HSIO

ASFIC_CS

SPI_CLK

SPI_DATA_OUT

3V

5V

Figure 7-35. VHF (146-174 MHz) Audio Circuitry Schematic Diagram (8486342Z09-A)

6880309N62-C June, 2005

7-30 VHF (146-174 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486342Z09-A)

BATT_CHARGE

POS NEG

DATA

J301

C302 390pF

VOLUME

ON_OFF

C305 100pF

F301

3A

C306 .01uF

D3_3V

R506 100

3

2

15

R507

6

100

3.3 V (ON) 0 V (OFF)

HIGH

LOW

C301 390pF

TAB1

7

VR302

MMBZ5250B

20V

S444 SWITCH

4

TAB2

7.5 V

NC

7.5 V (ON) 0 V (OFF)

R510 330K

VR301

MMBZ5250B

20V

SWB+

1

2

3

D301

Q494

R508 100K

6

4

2

0 V (ON)

7.5 V (OFF)

USWB+

C303 10uF

1

Q493

U310

2

1

VOUT

GND

TK71750S

ERROR

FEEDBACK

R313 20K

7

2

D3_3V

C311 .018uF

0 V (RX)

3.3 V (TX)

3.3 V (RX) 0 V (TX)

15

VIN

3

CTRL

4

BYPASS

C304

.01uF

C310 .01uF

RX_ENA

TX_ENA

3

R509 100K

7.5 V (ON) 0 V (OFF)

NC

U320 LP2986

4

INPUT5OUTPUT

8

SHUTDOWN

6

SENSE

3

TAP

R312 20K

C320 .018uF

5 V

C312 10uF

R322 100K

R320 330K 1%

Q313

3.3 V

C313 .01uF

C323 150pF

C321 10uF

5 V (RX)

0 V (TX)

D3_3V

C322 .01uF

C314 1200pF

0 V (RX)

5 V (TX)

R311 100K

3.3 V

R310 100K

C316 1200pF

Q312

RESET

D3_3V

Q311

C315 1200pF

5V

5 V (RX)

0 V (TX)

0 V (RX)

5 V (TX)

5R

5T

R321 200K 1%

U330

VOUT

2

GND

TK71730S

C334 10uF

15

VIN

3

CTRL

4

BYPASS

C331 .01uF

C333 .01uF

3.0 V

3V

Figure 7-36. VHF (146-174 MHz) DC Regulation Schematic Diagram (8486342Z09-A)

June, 2005 6880309N62-C

Motorola CP150TM User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

1.1 Test Equipment

1.2 Service Aids

Chapter 2 DC Power Distribution

2.1 DC Regulation and Distribution

Chapter 3 Controller Theory of Operation

3.1 Controller

3.1.1 Microprocessor Circuitry

3.1.2 Audio Circuitry

Chapter 4 136-162 MHz VHF Theory Of Operation

4.1 Introduction

4.2 VHF Receiver

4.2.1 Receiver Front-End

4.2.2 Receiver Back-End

4.3 VHF Tr ansmitter

4.3.1 Transmit Power Amplifier

4.3.2 Antenna Switch

4.3.3 Harmonic Filter

4.3.4 Antenna Matching Network

4.3.5 Power Control

4.4 VHF Frequency Generation Circuitry

4.4.1 Fractional-N Synthesizer

4.4.2 Voltage Controlled Oscillator (VCO)

Chapter 5 146-174 MHz VHF Theory Of Operation

5.1 Introduction

5.2 VHF Receiver

5.2.1 Receiver Front-End

5.2.2 Receiver Back-End

5.3 VHF Tr ansmitter

5.3.1 Transmit Power Amplifier

5.3.2 Antenna Switch

5.3.3 Harmonic Filter

5.3.4 Antenna Matching Network

5.3.5 Power Control

5.4 VHF Frequency Generation Circuitry

5.4.1 Fractional-N Synthesizer

5.4.2 Voltage Controlled Oscillator (VCO)

Chapter 6 VHF Troubleshooting Tables

6.1 Troubleshooting Table for Receiver

6.2 Troubleshooting Table for Synthesizer

6.3 Troubleshooting Table for Transmitter

6.4 Troubleshooting Table for Board and IC Signals

VHF (136-162 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486769Z02-A) 7-5

Figure 7-3. VHF (136-162 MHz) Radio Circuit Block Interconnect Diagram (8486769Z02-A)

Figure 7-4. VHF (136-162 MHz) Receiver Front End Schematic Diagram (8486769Z02-A)

Figure 7-5. VHF (136-162 MHz) Receiver Back End Schematic Diagram (8486769Z02-A)

Figure 7-6. VHF (136-162 MHz) Synthesizer Schematic Diagram (8486769Z02-A)

Figure 7-7. VHF (136-162 MHz) Volt age Co ntrolled Oscillator Schematic Diagram (8486769Z02-A)

Figure 7-8. VHF (136-162 MHz) Transmitter and Power Control Schematic Diagram (8486769Z02-A)

Figure 7-9. VHF (136-162 MHz) Controller Interconnect Schematic Diagram (8486769Z02-A)

Figure 7-10. VHF (136-162 MHz) Microprocessor Circuitry Schematic Diagram (8486769Z02-A)

Figure 7-11. VHF (136-162 MHz) Audio Circuitry Schematic Diagram (8486769Z02-A)

Figure 7-12. VHF (136-162 MHz) DC Regulation Schematic Diagram (8486769Z02-A)

Figure 7-13. VHF (136-162 MHz) Board Top Side View (8486769Z02-A)

Figure 7-14. VHF (136-162 MHz) Board Bottom Side View (8486769Z02-A)

VHF (136-162 MHz) Radio Parts List (8486769Z02-A)

VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C) 7-21

Figure 7-15. VHF (136-162 MHz) Radio Circuit Block Interconnect Diagram (8486769Z04-C)

Figure 7-16. VHF (136-162 MHz) Receiver Front End Schematic Diagram (8486769Z04-C)

Figure 7-17. VHF (136-162 MHz) Receiver Back End Schematic Diagram (8486769Z04-C)

Figure 7-18. VHF (136-162 MHz) Synthesizer Schematic Diagram (8486769Z04-C)

Figure 7-19. VHF (136-162 MHz) Voltage Controlled Oscillator Schematic Diagram (8486769Z04-C)

Figure 7-20. VHF (136-162 MHz) Transmitter and Power Control Schematic Diagram (8486769Z04-C)

Figure 7-21. VHF (136-162 MHz) Controller Interconnect Schematic Diagram (8486769Z04-C)

Figure 7-22. VHF (136-162 MHz) Microprocessor Circuitry Schematic Diagram (8486769Z04-C)

Figure 7-23. VHF (136-162 MHz) Audio Circuitry Schematic Diagram (8486769Z04-C)

Figure 7-24. VHF (136-162 MHz) DC Regulation Schematic Diagram (8486769Z04-C)

Figure 7-25. VHF (136-162 MHz) Board Component Side View (8486769Z04-C)

Figure 7-26. VHF (136-162 MHz) Board Solder Side View (8486769Z04-C)

VHF (136-162 MHz) Radio Parts List (8486769Z04-C)

VHF (146-174 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486342Z09-A) 7-21

Figure 7-27. VHF (146-174 MHz) Radio Circuit Block Interconnect Diagram (8486342Z09-A)

Figure 7-28. VHF (146-174 MHz) Receiver Front End Schematic Diagram (8486342Z09-A)

Figure 7-29. VHF (146-174 MHz) Receiver Back End Schematic Diagram (8486342Z09-A)

Figure 7-30. VHF (146-174 MHz) Synthesizer Schematic Diagram (8486342Z09-A)

Figure 7-31. VHF (146-174 MHz) Voltage Controlled Oscillator Schematic Diagram (8486342Z09-A)