Ericsson Monogram Series MGP 450, Monogram MGP 450 Maintenance Manual

Download

SCHEMATIC DIAGRAM

LBI-38861C

Maintenance Manual

Monogram Series

450-512 MHz PORTABLE RADIO MODEL MGP 450

RAPID DESK CHARGER

MGCH3K

Ericsson Inc.

Private Radio Systems Mountain View Road Lynchburg, Virginia 24502 1-800-592-7711 (Outside USA, 804-592-7711) Printed in U.S.A.

TABLE OF CONTENTS

Page

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

OPTIONS AND ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

PROGRAMMABLE FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

CONTROLS AND INDICATORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

INDICATORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

ALERT TONES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

RADIO ON/OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

TO RECEIVE MESSAGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

TO TRANSMIT A MESSAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

CIRCUIT ANALYSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

TRANSMITTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

RECEIVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

MICROCONTROLLER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

SERVICE SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

DIAGNOSTIC ANALYSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

ELECTROSTATIC DEVICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

REMOVAL AND REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

PERFORMANCE TEST AND ALIGNMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

TRANSMITTER PERFORMANCE TESTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

RECEIVER PERFORMANCE TESTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

ALIGNMENT PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

RECEIVER ALIGNMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

PROGRAMMING THE RADIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

CARE OF EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

SERVICING THE BATTERY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

OUTLINE DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

MECHANICAL PARTS BREAKDOWN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

SPECIFICATIONS*

GENERAL

FCC DOC

Radio Identification F3JSP2850 287-194-149P Frequency Range 450 - 470 MHz

470 - 490 MHz 488 - 512 MHz

Channel Spacing and Stability 25 kHz ± 0.0005% Number of RX/TX Channels 10 Maximum Microphone Impedance 1.5k Ohm Speaker Impedance 8 Ohm Battery Rechargeable Nickel-Cadmium Battery, 10.8 V DC

600 mAh MGPA5A

1200 mAh MGPA5C Operating Voltage Range 10.8 nominal Current Drain

Standby

(Battery Save On) 45 mA

(Battery Save Off) 80 mA Receive 210 mA Transmit (5 W) 1200 mA

Battery Life (5-5-90% duty cycle)

Typically: 600 mAh (344A4506P1) 7 hrs at 5 W (save on), 5 hrs at 5 W (save off). 1200 mAh (344A4506P3) 14 hrs at 5 W (save on), 10 hrs at 5 W (save off).

Environmental Designed to meet EIA

Temperature Range -30°C to +60°C Relative Humidity 90% at 40°C Non-condensing

Dimensions (in mm)

Radio 99(H) x 64(W) x 36(D) 600 mAh MGPA5A Battery 59(H) x 64(W) x 36(D) 1200 mAh MGPA5C Battery 94(H) x 64(W) x 36(D)

Weight

Radio 270 gm 600 mAh (344A4506P1) Battery 230 gm 1200 mAh (344A4506P3) Battery 300 gm

TRANSMITTER Output Power Variable 1W or 5W nominal RF Load Stability Unconditional RF Power Stability +2 dB - 3 dB of nominal power Operational Bandwidth 8 MH z

LBI-38861C

DESCRIPTION

The MONOGRAM Series Personal radio is small, lightweight, yet ruggedly constructed two way FM radio operating on the 450-470 MHz frequency band. This multichannel radio offers both simplex and semi-duplex operation with a wide range of options and accessories available.

Advanced state-of-the-art technology is used in the design and manufacture of this synthesized radio to provide the most in flexibility, capability, and adaptability to various system configurations. Up to 10 channels are offered with tone and digital Channel Guard programmable on a per channel basis.

OPTIONS AND ACCESSORIES

MGNC3P Antenna, 450-470 MHz (19B80 25 60 P1) MGAE1V Speaker/Microphone (344A4209P30) MGHC5L Leather Case Assembly (use with 600 mAh

battery)

MGHC5M Leather Case Assembly (use with 1200 mAh

battery)

MGPA5B 600 mAh Battery, Nickel-Cadmium battery

(BKB 191 206/1)

MGPA5C 1200 mAh Ba tter y, Nickel-Cadmium batte ry

(BKB 191 206/3) MGC3HJ Standard Desk Charger (344A4209P20) MGC3HK Rapid Multicharger (344A4209P21)

PROGRAMMABLE FEATURES

All programmable functions are controlled by the microcontroller. The microcontroller reads specif ic channel information from an Electronically Erasable Programmable Read Only Memory (EEPROM). Refer to the programming manual provided with the programming adaptor kit for programming instructions.

Except for the time-out-timer, the following features are programmable on a per channel basis:

•

Time-out-timer

•

Channel transmit frequencies

•

Channel receive frequencies

•

Channel Guard frequencies - tone or digital

•

Transmit only channels

•

Receive only channels

Other programmable features:

•

Tx Delay

•

Channel busy lockout

•

Battery saver

•

Monitor inhibit

CTCSS OR DCS

Allows users to hear only messages intended for them and blocks out all other communications (unless monitor button is pressed) using a sub-audi ble tone. DC S operates in a s imilar manner but uses a digitally generated signal.

•

CTCSS Non-Standard Tone Hi/Low Settings: There are a maximum of two Non- Standard Tone settings on the radios with 49.0 Hz being the lowest setting and 260.0 Hz being the highest setting.

TRANSMIT TIME-OUT-TIMER

The transmit time-out-timer limits the time a user may continuously transmit. When the PTT switch is released another transmission may be initiated.

BUSY CHANNEL LOCK-OUT

Busy Channel Lock-Out is used to prevent the radio from being keyed on a busy channel. If the PTT switch is pressed while a carrier is present, as indicated by the Busy LED and/or Call LED being lit, the transmit function is disabled and an audible alarm will sound. When the BUSY LED is off (no carrier is being received) the transmit function is enabled. This option can be disabled by enabling the Marked Idle feature.

MARKED IDLE

This is a Busy Channel Lock-Out override. W ith th e proper tone present the Lock-Out will be disable.

Spurious emissions

Conducted -60 dBc maximum

Radiated -60 dBc maximum Adjacent Channel Noise Power -70 dB Audio Frequency Response +1, -4-5 dB 300-3000 Hz Audio Distortion < 5% Modulation Limiting 5 kHz 300-3000 Hz Microphone Sensitivity > 90 dB S.P.L. FM Hum and Noise (Unsquelched) < 45 dB Carrier Attack Time < 100 ms RECEIVER Sensitivity 12 dB SINAD: 0.25 µV (TYPICAL)

20 dB: 0.5 µV

Modulation Acceptance Bandwidth 7.0 kHz Adjacent Channel Signal Selectivity -70 dB Spurious Response Rejection -70 dBc Squelch Blocking > 5 kHz Intermodulation Rejection

> 70 db Maximum Audio Power Output 0.5 W AF Distortion < 5.0% Frequency Response -2, +8 dB 1000 Hz reference

6 dB/octave de-emphasized 300 Hz - 3000 Hz.

Hum and Noise (Unsquelched) 45 dB Conducted Spurious Emission -53 dBm Operational Bandwidth 7 MHz (3 dB)

* These specifications are intended primarily for use during servicing. Refer to the appropriate Specification Sheet

for complete specifications.

LBI-38861C

TX DELAY

This option is used to eliminate Squelch Tail.

POWER SAVE MODE

The Power Save Feature is a battery saver fea ture, fol-

lowing are the three options:

On Time: This is the time that the battery save mode is enabled and the Receiver is asleep. (Suggested setting 400 mS)

Off Time: This is the time that the battery save mode is enabled and the Receiver is awake. (Suggested setting 150 mS)

Delay Time: This is the time it takes to resume the Power Save Mode after the carrier drops out. (Suggest setting 5 Seconds)

CONTROLS AND INDICATORS

Operating controls , indicators, accessories socket and antenna connections are all located on the top panel. The monitor and PTT buttons are located on the left hand side of the radio chassis. Figure 1 shows their location.

The radio battery pack securely latches in place at the bottom of the radio and is locked in position by the battery release switch.

CONTROLS

ANTENNA RECEPTACLE: Attaches the antenna to the

radio, 1/4 inch in UNEF socket

ACCESSORY JACK: Multipurpose 6-way jack,

used with optional speaker microphone or VOX unit. May also be used for an external 8 ohm speaker or earphone and programming.

Single Unit, Single Rate Pedestal Charger MGCH3J

Dual Unit, Dual Rate "Smart" 1 Hour Desktop Charger MGCH3K

Slide-on 500 mAh Standard Capacity Battery MGPA5B

1200 mAh High Capacity Battery MGPA5C

Speaker/Microphone Has rotating detent clip for fastening to pocket or lapel. MGAE1V

Antenna PC Programming MGNC3N-VHF TQ 3375

Antenna PC Programming Cable MGNC3P-UHF TQ 3376

Figure 1 - Options And Accessories

Figure 2 - Controls And Indicators

Deluxe All Leather Case with metal riveted construction and slide on metal swivel for use with standard capacity battery. MGHC5L

Deluxe All Leather Case for use with high capacity battery MGHC5M

LBI-38861C

ON/OFF/VOLUME Located on the control panel,

used to turn the radio on or off and to adjust the listening level.

CHANNEL SELECTOR SWITCH

Rotary switch, used to select one of up to 10 preprogrammed channels

HI-LO POWER BUTTON Selects either 1 or 5 watts RF

power output.

MONITOR BUTTON When pressed, it un squ elc he s

the receiver to allow the user to monitor the selected channel.

PTT BAR Pressing the PTT bar keys t he

transmitter and activates the radio Channel Guard encoder.

BATTERY Slide on battery pack. A 600

mAh or a 1200 mAh battery

is used to power the radio. SPEAKER Located behind the grille MICROPHONE Note the location of the mi-

crophone. To transmit clear

messages, hold the micro-

phone about two inches away

from your mouth and speak in

a normal voice. BATTERY CHARGE

CONTACTS

Charging contacts provided

for pedestal slow charge r or

desktop quick charger.

INDICATORS

BUSY/TX/BT: TX/BT: Red LED- ON when

the transmitter is keyed (Nor-

mal transmission). NOTE:

This LED dims or goes out

when the battery voltage is

low.

BUSY: Amber LED- ON

when the selected channe l is

busy.

Green LED- ON when a prop-

erly encoded signal is re-

ceived on the selected

channel.

ALERT TONES

A series of audible alert tones are sounded to indicate the

operating status of the radio.

Upon initial power-up, a quick four tone alert indicates the self test of the microprocessor functions has been successfully completed. Single tones are sounded w hen any o f the following conditions exist:

•

An attempt to transmit on a channel set for "receive only".

•

An attempt to transmit on a channel that is already busy (if the "Busy Channel Lockout option has been programmed for operation).

•

Transmitting time exceeds the preprogrammed time allowed by the "Time-Out-Timer (Dealer programmed).

OPERATION

RADIO ON/OFF

Each time the radio is powered up, an automatic selfcheck is executed and, up on sat isfac tory comp letion, a qu ick four tone alert is sounded.

Turn the radio ON by rotating the VOLume control fully clockwise (to the right) until you hear a click and the "SelfTest" alert tone.

Turn the radio OFF by rotating the VOLume control fully counterclockwise until you hear a click and feel the switch enter the detente position.

TO RECEIVE MESSAGES

1. Turn the radio ON and set the Channel Selector switch to the desired channel.

2. Adjust the VOLume control to the desired listening level with the ON/OFF VOLume control. Unsquelch the radio by pressing the monitor switch on the side of the radio. When the radio is unsquelched, adjust the VOLume control to the desired level.

TO TRANSMIT A MESSAGE

1. Befor e ma kin g a ca l l al way s mon it or th e ch an ne l. Th e status indicator glows yellow when the channel is busy. If the status indicator glows yellow and yo u cannot he ar who is transmitting because they are using a different DCS or CTCSS tone you may listen to the channel by pressing the Monitor Button.

2. If a message is being received, transmit only after the incoming message has been received.

3. Press and hold the PTT switch, the status indicator glows red to indicate the transmitter is operating.

4. Place the microphone 2.5 cm to 10 cm from the mouth and speak clearly in a normal tone of voice.

5. Release the PTT switch to listen.

6. Turn the radio off by rotating the on/off/VOLume control fully counterclockwise.

CIRCUIT ANALYSIS

The radio consists of two main printed circuit boards: an RF board and a control board. The RF board contains the transmitter and receiver circuits, the synthesizer, and automatic power control. The control boar d co nt a i ns the microcontroller and associated digital circuits and microphone audio circuits.

TRANSMITTER

The transmitter consists of the following:

•

microphone audio circuit

•

transmitter and harmonic filter

•

automatic power control

•

frequency synthesizer.

Operation of the transmitter without a proper antenna installed may result in permanent damage to the radio.

WARNING

•

When making a call on channels programmed for Channel Guard, only calls with that channels specific tone or code will be heard. In normal operation the speaker will remain quiet until the correct tone or code is received. The status indicator will glow green, the loudspeaker will open and the call will be heard.

•

A red transmit indicator (TX/BT BUSY) will be on continuously while the PTT bar is pressed, indicating the radio is transmitting.

•

If the TX/BT/BUSY indicator is dimly lit or fades rapidly, it is an indication that the battery should be replaced or recharged.

•

When CTCSS and DCS is programmed, on ly calls with the radio’s specified code will be heard. In normal operation the speaker will remain quiet until the correct CTCSS or DCS code is received. The status indicator will glow green, the loudspeaker will open and the call will be heard.

•

When the Transmit Time Out Timer is programmed, transmission is disabled after a preset period of time. An audible alert will be heard at the end of the period.

•

When the Busy Channel lock-out function is programmed and the system is busy, the transmitter is disabled. If the PTT button is pressed, an audible alert will sound and the yellow status indicator will blink off and then on.

NOTE

When Channel Guard is programmed, only calls with the radio’s specified code will be heard. In normal operation the speaker will remain quiet until the correct Channel guard code is received. The status indicator will glow green, the loudspeaker will open and the call will be heard.

NOTE

In some radios, a VCO out-of-lock indica tion is gi ven while switching between channels. The out-of-lock indication is indicated by the top panel LED flashing and two short beeps sounded from the speaker. This in no way inhibits or rest ricts the oper ation of the ra dio and lasts for only a very short time.

A solution to this problem is to program all unused channels with a receive frequency. (Although the radio is only 10 channels, it is possible to program up to 16 channels into the radio. All 16 should be programmed. The programmer is capable of doing this).

NOTE

LBI-38861C

Microphone Audio Circuit

The audio signals from the m icrophone (CON 406, c onnection 2) or the external microphone (through CON 151, connection 1) are amplified, pre-emphasized, and limited by IC404 and associated components.

The AF microphone signal is applie d to pin 5 of IC405 B to produce an amplified and pr e-emphasized audio si gnal. The signal is limited by IC404C and ap plied thro ugh VR 402 ( and the DCS AF signals from Q409 thro ugh VR401 when pr ese nt) to a low-pass filter IC404A and IC404B.

The low-pass filter rejects frequencies above 3 kHz (outside the voice spectrum). The filtered signal is applied to the VCO (within the frequency synthesizer circuit) through the analog switch IC402B, CON 401 (connection 15) and flexible printed circuit board 1, (connection 14). RV402 is used to adjust voice deviation.

Transmitter And Harmonic Filter

The power amplifier co nt ains transistors Q1-Q3, induct or s L3-L9 and capacitors C74 thru C86. When operating in the transmit mode diode D 6 is forward biased, enab ling the RF signal to pass to input buffer Q3. The buffered RF signal is amplified by Q2. The out put from Q3 i s impe dance ma tched to Q2 by inductor L6 and capacitors C83 thru C86. Q1 is the power amplifier. Diode D5 is reversed biased, inhibiting the TX signal through the receiver stage. The amplifier RF signal passes through the stripline coupler and is fed to the harmonic low-pass filter, consisting of inductors L1 thru L3, and then to the antenna connector (ANT).

The stripline coupler provides a sample of the RF signal to the automatic power control.

Automatic Power Control

The automatic power control circuit contains the stripline coupler, diode D3 and variable resistor VR2, two transistors Q8 and Q11. Q8 and Q9 form a differential amplifier. The RF signal present in the coupler is rectified by D2, to produce a DC voltage that is passed to the base of Q9 thru VR2. A portion of the voltage TX 8.5V is applied to the base of Q8 through voltage divider R7/R8. The difference signal at the collector of Q9 is passed to Q10 and Q11 to produce a constant power output to antenna connector ANT. VR2 is used to adjust the RF power level.

Frequency Synthesizer Circuit

With data received from EEPROM IC408, the frequency synthesizer circuit controls and produces the RF carrier frequency for the transmitter during transmit and the local oscillator frequency for the receiver. The frequency synthesizer circuit consists of the following:

•

Voltage Controlled Oscillator Module

•

Loop Filter

•

PLL Frequency Synthesizer

•

Dual Modulus Presc ale r

Voltage Contr olled Oscillator (VCO) Module: The VC O produces the transmit carrier frequency and the receive local oscillator frequency. The module also includes a power line filter.

Transistor Q301 is configured as a power supply ripple filter. The VCO consists of transistors Q302, varactors D301 and D302 and trim capacitor TC301. These components form a Colpitts oscillator. D301 and D302 produce a change in frequency with a change in DC voltage and are controlled by the phase detector signal present at the anodes of D301 and D302. The local oscillator signal at the emitter of Q302 is applied to amplifier Q303. The amplified signal from Q303 drives VCO output buffers Q304 and Q305.

When D6 is forward biased, carrier frequencies at the collector of Q304 pass to the transmitter stage and harmonic filter. When D7 is forward biased local oscillator frequencies at the collector of Q304 are passed to the first mixer and the first IF amplifier circuit. RX and TX oscillator frequencies are passed to the dual modulus prescaler. TC301 is used for PLL alignment.

Loop Filter: A loop filter consisting of transistors Q18 and Q19, resistors R42 thru R47 and capacitors C7 and C10 1 thru C112 filter the phase detector output from IC1-6 to remove any reference frequency harm onics. It is then applie d to the v oltage controlled oscillator module.

PLL Frequency Synthesizer: The PLL frequenc y sy nth esizer (IC1) contains an oscillator for the reference crystal, a reference divider, a programmable divider, a phase/frequency comparator, an out of lock detector and a prescaler controller.

Reference oscillator IC1 along with a 12.8 MHz Crystal X1, varactor diode D13, and thermistors TH1, TH2 and TH3 produce a temperature compens ated 12.8 MHz refe rence signal at pin IC1-18.

IC1 has two dividers, a data programmable divider and a hardwired programmable reference divider. Pins 1, 2 and 20

are all connected to the +8V supply to divide the reference frequencies by 2048. The pre scaler di vided outp ut frequenc y at pin IC1-10 is further divided by the programmable divider. The 12.8 MHz frequency at pin 18 is the reference divider to produce a reference frequency of 6.25 kH z respectively. The programmable divide d frequenc y (Fv) and the referen ce frequency (Fr) are fed to the phase detector.

The phase detector (pin 6 ) produces ne gative pulses when Fv<Fr positive pulses when Fv> Fr. When Fv = Fr and phase is the same, the phase detector presents a high impedance at pin 6. The signal at pin 6 is applied to the VCO through the loop filter.

The out of lock detector produc es a high logic le vel wh en Fr and Fv are in the sam e phase and frequency, or low logic level pulses when the loop is out of lock at IC1-9. The signals at IC1-9 are buffered by Q17 and then inte grated by R53 and C46. The product of the integrating circuit is fed to flexible PCB 1, connector 8.

The prescaler controller through pin 8 sets the prescaler to divide by 128 or 129.

Dual Modulus Prescaler

Dual modulus prescaler IC2 divides the VCO frequency by 128 or 129 with signals received from the PLL frequency synthesizer. A low logic level received at pin 6 of IC2 will divide the VCO frequency at pin 1 by 128. A high logic le vel received at pin 6 of IC2 will divide the VCO frequency at pin 1 by 129. The divided VCO frequency is passed to the PLL frequency synthesizer through pin 4.

RECEIVER

The Receiver uses dual conversion superheterodyning techniques and consists of:

•

RF Amplifier,

•

First Mixer and First IF Amplifier,

•

Second Mixer, Second IF Amplifier and FM Detector,

•

Receiver Aud io

•

Mute (Squelch).

RF Amplifier

The receiver RF amplifier contains helical resonators FL1 thru FL3 and Q13. FL1 and Fl2 are configured as 2-pole bandpass filters. The RF signal passes through the tuned circuit FL1, RF amplifier Q13 and FL2 enabling the RF signal at the operating frequency to pass to the first mixer.

First Mixer And First IF Amplifier

FET Q12 Transistor Q16, crystal filter XF1, helical resonator FL3 and coil T4 form the First Mixer and First IF Amplifier. The VCO local oscillator signal is filtered by FL3. Q12 produces a difference frequency of 21.4 MH z at the drain connection, from the filtered RF signal at the gate connection and then filtered by the VCO local oscillator signal at the source connection. The 21.4 MHz difference frequency is filtered by the crystal filter XF1. The tuned circuit T4 and associated components provide matching of the crystal filter to insure good passband response and selectivity. The IF signal is amplified by Q16 and passed to the second mixer, second IF, and FM detector.

Second Mixer, Second IF, And FM Detector

A single conversion FM receiver integrated chip, IC3, contains the second mixer, sec ond IF, and FM detector functions. The second local oscillator frequency is determined by the crystal X2 (20.945MHz) connected to IC3-1. The IF signal is received at IC3-16 through coupling capacitor C6. The second IF frequency of 455 kH z is produc ed when th e 1st IF frequency is applie d t o t he mi xer through pin 16. The output of the second mixer through pin 3 is applied to a 455 kHz bandpass filter, CF1. The output of CF1 is passed to a high gain IF amplifier (limiter) at IC2-5. The amplified signal is coupled to the adjustable quadrature detector T5. The audio output is produced at IC3-9 and applied to the receiver audio circuit and the mu t e (sq ue lch ) ci r cu it .

Receiver Audio Circuit

The receiver audio circuit comprises a low pass filter and an audio amplifier on the RX/TX printed circuit board, and a high pass filter and de-emphasis circuit on the control printed circuit board.

The low pass filter is configured from coil L12, capacitor C64 and resistor R39. AF signals from IC3-9 are filtered by the low-pass filter to remove any components of the 455 kHz IF signal. The filtered signal at flexible PCB 1, connection 14 is passed to the high pass filter on the control printed circuit board through flexible CON 402, connection 15.

LBI-38861C

DCS and CTCSS signals from the recovered audio are removed by the high pass filter. The high pass filter is an 8-pole active filter that comprises IC410 and associated components. The de-emphasis is provided by resistor R451 and capacitor C471. The de-emphasized audio signal is fed to the audio amplifier on the RX/TX printed circuit board through the flexible PCB 1. The microcontroller controls the audio signal to the audio amplifier. When Q408 is on, the audio signal to the audio amplifier is disabled. When Q408 is off, the audio signal to the audio amplifier is enabled.

IC4 is the audio amplifier. The audio signal at flexible PCB 1, connection 12 is passed to IC 4-3 through variable resistor VR3 located on the front panel. The gain of the amplifier is set by resistor R27 and C99. The amplified audio signal at IC4-5 is applied to the internal speaker by flexible PCB 1, (connection 9), CON 406 (connection 1) and CON 404 (connection 8). The external speaker connection is through the 6-way connector.

Mute (Squelch) Circuit

The squelch circuit switches off the audio power amplifier in the absence of audio signals. The squelch circuit comprises a 25 kHz pass band filter, squelch control VR201 and a noise detector circuit.

The audio signal from IC3-9 is filtered by the 25 kHz bandpass filter formed by L13, L14, C104 and C105. The noise in the IF pass band is accepted; frequencies in the voice

frequency band are rejected. Any noise present at the output of the filter is applied to the noise detect circuit.

The noise detect circuit in conjunction with IC3 consists of transistors Q201 and Q202, thermistor TH201 and diode D205. Any noise signal present is applied to pin 2 of the SQ board from IC3-11. The signal is amplified by Q201, rectified by D201 then buffered by Q202. The buffered signal is applied to VR201 for adjustment of squelch sensitivity and applied through R149 to the squelch trigger at IC3-12.

When noise is present, the voltage at IC3-12 ex ceeds 0 .7 V, the squelch trigger output is 0 V (logic 0), muting the receiver audio circuit. When no noise is present, the voltage at IC3-12 is less than 0.7 V and IC3-13 is at 5V (logic 1), unmuting the receiver audio circuit. Resistor R119 is used to provide hysteresis of 3 to 6 dB.

MICROCONTROLLER

Microcontroller, IC409, is a Zilog based Z86C10 with 4k-byte ROM and 128k-byte RAM. It ha s a cloc k frequ enc y of 11.1552 MHz derived from cry stal X401 which is connected between pins 30 and 31. The microcontr oller, in conjunction with control signals from the switches on the top panel, controls the frequency synthesizer circuit from data stored in the EEPROM, the control and indicator circuit, the Channel Guard circuit, and the power save circuit.

Table 1 identifies the microcontroller interface signals.

Receive And Transmit Switching Circuit

The receive and transmit switching circuit in conjunction with microcontroller IC409 consists of transistors Q4, Q5 Q401, diode D9 and IC402. They are configured so that when a switch in the receiver circuit is closed the transmitter circuit is off.

When the PTT switch (SW-402) on flexible PCB 9 is pressed, the PTT input at IC409-43 is held low, causing transmit enable pin (TX EN) of IC409 to go low (0 V) and power save pin (P/S) to go high (+5V). TX EN is connected to Q401, IC402 on the control printed circuit board, and TX switching transistor Q4 and D9 on the RF printed circuit board.

Analog switch IC402A is disabled and Q401 is forward biased, applying +5V to IC404 and analog s witch IC402B. This enables the microphone audio circuit. The transmit enable signal is passed to Q4 through CON401, connection 7 and flexible PCB 1, connection 6.

CTCSS/DCS Tone Encode And Decode Circuits

The CTCSS/DCS (tone/digital) encode and decode circuits, in conjunction with IC409, comprise an addressable 4 x

4 cross point switch (IC406) and a 6th order switc hed capac itor lowpass filter IC407). IC407 has two internal general purpose op-amps. When programmed the circuit is used to control the audio muting function of the radio. Table 2 details the 4 x 4 cross point switch input/output descriptions. The cross point switching is detailed in Table 3.

When the CTCSS/DCS decoding circuit IC406 is enabled, CTCSS/DCS signals prese nt at CON402, connection 15 are passed to IC407-8 (FIL IN) through R4 (IC406-11), C3 (IC406-12) and capacitor C436. The clock frequency is used to set the cut-off frequency to filter out the CTCSS/DCS tone frequency. The filtered tone frequency at IC407-3 is passed to the input of an internal amplifier through pin 13. During CTCSS decoding operation the filtered tone frequency at Pin 3 (IC407) is passed to the CTCSS filter through the coupling cap C455 to IC412-3. The CTCSS signal is then output from IC421-1 through coupling cap C454 to IC407-13. The output of the internal amplifier (IC407-2) is fed to inverter input IC411-12. The inverted output IC411-11 is applied to the CALL pin and CALL DET pin 2B of the microcontroller. The signal is filtered and matched with a pre-programmed frequency and if successfu l th e T X LE D an d BU SY L ED o ut p ut lines are set a +5V. The green LED on the front panel is turned on and the receiver audio circuit is enabled. For DCS, R2 of IC406 and C4 are added to improve low pass filtering.

Table 1 - Microcontroller Signal Descriptions (Cont.)

SIGNAL NAME

ENABLE

STATE

DESCRIPTION/FUNCTION

R/E H PLL SELECTOR (MC 145156) E/E H EEPROM SELECTOR (93C46) E/E H EEPROM SELECTOR (93C46) XS/E H X-SW SELEC TOR (MC 142100) 1 DAT A EEPROM CLK/X-SW A/TONE A/CH SW A(1) 2 DATA X-SWB/TONE B/CHANNEL SW B(2) 4 DATA EEPROM D1/X-SW D/CH SW C(4)/PLL CLOCK 8 DATA X-SW C/TONE C/CH SW D(8) D DATA EEPROM DO/X-SW DATA/PLL DATA CALLDET INTERUPT CALL DETECTOR INTERRUPT I/O EN L I/O CONTROL SELECTOR (74HC368) CLOCK CLK FILTERING CLOCK GENERATOR (MF 6-100)

Table 1 - Microcontroller Signal Descriptions

SIGNAL NAME

ENABLE

STATE

DESCRIPTION/FUNCTION

LOW BATT L BATTERY LOW DETECTOR MONITOR L MONITOR SWITCH DETECTOR PTT L PTT SWITCH DETECTOR CALL H CALL DETECTOR BUSY L SQUELCH DETECTOR L/D H LOCK DETECTOR TXLED H RED LED CONTROLLER CALL LED H GREEN LED CONTROLLER 386 EN H 386 MUTE CONTROLLER TXEN L TX ENABLE CONTROLLER P/S H POWER SAVING CONTROLLER

LBI-38861C

During TX mode the CTCSS/CDS tone en coding circuit generates the tone squelch digital signal and produces a 3-bit parallel word at pins 18 (1), 19 (2) a nd 21 (8 ) of th e mic roco ntroller. The 3-bit digital signal is converted to an a nalog signal by resistors R421-424. RV403 is used to adjust signal deviation. The analog signal is passed to digital filter IC407-8 through pin 10 and 14 of 4 x 4 cross switch IC406. The filtered output at IC407-3 is connected to IC406- 14 and fed to pin 1 (CTCSS) and pin 15 (DCS). The CTCSS signal at IC406-1 is passed to the VCO module through R4 6 and Flexi PCB 1, connector 16. The DCS signal at IC406-15 is passed to Q409, RV401 and IC404 A and B. RV401 is used to adjust DCS

distortion. IC404 A and B form a low pass filter. The output is passed to the VCO module through Flexi PCB 1, connector 15.

Control And Indicator Circuits

External PTT Control Circu it - When the e xternal micro-

phone is connected at the adaptor socket (pin 4) on the top panel circuit board, the CONT control line on the control printed circuit board is at logic 0, switching IC401A off to disable the internal microphone. The CONT control line is also connected to the junction of R416 and C478 at IC405. IC405D is a voltage comparator with R416 D C. When PTT is pressed, IC405D-13 goes below 2V and output 14 goes high (+5V), turning on Q402. The PTT control line is pulled low, enabling the radio transmitter through D401.

Channel Select Circuit - One of 10 channels may be

selected using the channel switch (CH) on the top panel. The channel switch encodes the channel number selected into a 4-bit binary word. Periodically the microcontroller enables IC411-1. The 4-bit binary word from the RF printed circuit board is passed through the 4-bit inverting buffer to the microcontroller data I/O lines 1, 2, L1, and 8 through the control printed circuit board, the flexible PCB2 and then to IC411. IC411 inverts the binary word. The inverted binary word is then decoded by the microcontroller, enabling the appropriate RX or TX frequency and associated data to be selected fr om the EEPROM.

Data present at the I/O lines is compared with previously sampled data. If a difference in data is detected, the microcontroller enables EEPROM IC408 and selects the RX or TX frequency datacontrolling the frequency synthesizer circuit for the channel selected.

Battery Low Indicator Circuit - Should the battery

voltage drop below 8.86 Vdc, IC405B (voltage comparator) turns on Q403. The microcontroller then enables the red LED indicator and at the same time disables the transmitter. The battery must be replaced or recharged before continuing operation.

I/O Control Circuit - IC403 and IC411 are input/output

buffers to isolate noise and are enabled by the microcontroller. IC411 is a tri-state 2-bit and 4-bit inverting buffer. The 4-bit output is enabled when pin 1 is at logic 0 (0 V). The 2-bit output is enabled when pin 15 is at logic 0 (0 V). IC403 is a non-inverting TTL to CMOS level shifter and output buffer supplying data to the RX/TX printed circuit board.

EEPROM

Rx/Tx channels, CTCSS, DCS as well as other data from the programmer are stored in the EEPROM. The data stor ed is retained during power outages and when the power is off. This is a non-volatile memory. The EEPROM may have information re-programmed or erased. IC 408 is an EEPR OM with 1024 bit (8 x 128) capacity. Data are written and read serially.

SERVICE SECTION

The Service Section contains information designed to assist you in rapidly identifying any problem are as and in tuning and adjusting the radio for optimum perf or manc e. A diagnostic section is included to help you, through the use of indicators and tones, to learn the current operating status of the radio.

CARE OF EQUIPMENT

1. Keep the exterior of the radio clean. Use a soft damp cloth.

2. To ensure efficient power transfer from battery to radio, wipe the contacts of the battery and radio to remove dirt or grease. Use a soft dry cloth.

3. When the accessories connector is not in use, cover the connector with the protective dust cap to prevent the build up of dust or water particles.

DIAGNOSTIC ANALYSIS

An analysis of the status indicators and audible tones are

provided in Table 4.

ELECTROSTATIC DEVICES

CMOS Integrated Circuit devices used in this equipment can be destroyed by static discharges. Before handling one of these devices, the servic e person should dis char ge himself by touching the case of a bench test

instrument that is equipped with a 3-pron g power cord connected to an outlet with a known good earth ground. When soldering or deso lde ring a CMOS de v ice , t he soldering iron being used shoul d al s o have a 3-prong power cord connected to an outlet with a known good earth ground. A battery operated soldering iron may be used in place of a standard soldering iron.

REMOVAL AND REPLACEMENT

Table 2 - Switch Input And Output Description

NAME PIN NO Input/Output DESCRIPTIONS

R1 15 Output To Modulation Circuits R2 14 Input From Filter Output R3 10 Input From Tone Generator R4 11 Input From Signal Receive Circuits C1 9 Output To Warning Tone Indication Circuits C2 1 Output To TCXO C3 12 Output To Filter Input C4 13 Output To DCS (or CTCSS Tone Coupling)

Table 3 - 4X4 Cross Point Switching

FUNCTION MODE I/O

CTCSS Receive R4.C3

Transmit R1.C2

R3.C3 R2.C2

DCS Receive R4.C3

R2.C4

Transmit R1.C2

R2.C2

R3.C3 WARNING R3.C1 SELF CHECK R3.C3

Do not carry or hold the radio by the antenna.

Do not use chemical cleaners, aerosol sprays or petroleum based product s when cleaning the ra dio. They may damage the radio housing.

CAUTION

When disassembling or reassembling the radio, refer to the Parts Breakdown drawings and Parts List for assistance.

NOTE

LBI-38861C

ANTENNA REMOVAL AND RE-INSTALLATION (See Figure 3)

A high quality molded antenna is supplied to match the operating frequency band of each radio. Should an antenna of the wrong frequency band be installed, the performanc e of the radio will be severely limited.

1. To remove the antenna, turn the antenna counterclockwise until removed.

2. To install the antenna, thread the antenna clockwise until it is firmly seated. Do not overtighten.

BATTERY REMOVAL AND INSTALLATION (Figure 3)

To remove the battery:

1. Holding the radio chassis in one hand, press and hold the battery release catch.

2. Using the other hand, slide the battery away from the battery release catch and off the battery guide rail.

To replace the battery:

1. With the slides of the battery positioned in line with the radio battery rail guides, slide the battery into position until a click is heard.

BELT CLIP REMOVAL AND INSTALLATION (See Figure 3)

1. With the battery removed, install the top of the belt clip bracket into the top recess on the back of the radio.

2. Push the bottom of the belt clip bracket into the bottom recess.

3. Install the Battery.

4. To remove the belt clip reverse the above procedure.

BEZEL REMOVAL AND REPLACEMENT

To remove the bezel:

1. Remove the battery.

2. Using a phillips head screw driver (No. O) remove the two screws located on the battery rail guide.

3. Holding the bezel firmly with thumb and forefinger, gently apply pressure towards the top panel and lift the bezel from the radio chassis.

4. Unplug the speaker and microphone lead from the connector on the control printed circuit board.

To replace the bezel:

1. Ensure all gasket rubbers are in position and not broken.

2. Place the lip at the top end of the bezel into the gasket recess of the top panel.

3. Press the bezel firmly into position.

4. Using a phillips head screw driver (No. 0) replace the two screws located on the battery rail guide.

MICROPHONE AND SPEAKER REMOVAL AND REPLACEMENT

To remove the microphone and speaker:

1. Remove the bezel.

2. Unscrew the two speaker mounting screws.

3. Gently press th e rubber microphone holder f rom the microphone slot on the bezel.

4. Remove the speaker and microphone.

To replace the speaker and microphone, reverse the proce-

dures above.

CONTROL PRINTED CIRCUIT BOARD REMOVAL AND REPLACEMENT

To remove the printed circuit board:

1. Remove the bezel.

2. Disconnect the three flexible PCB’s from the appropriate connectors.

3. Remove the three PCB mounting screws.

4. Gently lift the control board from the radio chassis.

To replace the PCB, reverse the procedures given in steps

2 to 4.

PCB SHIELD PLATE REMOVAL AND REPLACEMENT

1. Remove the bezel and the control PCB.

2. Using a small phillips head screw driver remove the screw located on the square black insulating pad and the screw fixing the PCB shield to the top panel PCB.

3. Gently lift the PCB shield from the radio chassis.

To replace and fit a PCB shield plate, reverse the procedures

given in steps 2 and 3 above.

RF BOARD REMOVAL AND REPLACEMENT

1. Remove the bezel, control board, and PCB sh ield plate.

2. Remove the four hexagonal mounting pillars.

3. Unsolder the lead of the fuse connected to the positive terminal of the battery connector.

4. Locate and remove the three TX transistor heatsink securing screws inside the radio chassis.

5. On the outside of the radio chassis remove the securing screw by the monitor and PTT switches and the securing screw on the opposite side.

6. Holding the top panel gently pull the ra dio chassis away from the top panel.

To replace the RF board, reverse the procedures given in

steps 2 to 6.

DAUGHTER BOARD REMOVAL AND REPLACEMENT

The daughter boards are small printed circuit boards that are soldered onto the main printed circuit boards. To remove the control or TX/RX daughter board proceed as follows:

1. Remove the control or RF board as required.

2. Unsolder th e daughter bo ard on the solder side of th e appropriate printed circuit boa rd .

Table 4 - Status Indictors And Audible Tones

STATUS DESCRIPTION LED COLOR AUDIBLE TONE

NORMAL Power on ready Melody

Busy Yellow N/A Correct Call Green N/A Transmit Red N/A Busy Lock Yellow, Flashing Single Tone

WARNING Time Out Timer Single Tone

Battery Low Red, Flashing N/A

ERROR EEPROM Error Red, Flashing Single Tone Continuous

PLL Error Red, Flashing Double Tone Continuous Filtering Error Red, Flashing Triple Tone Continuous

Figure 3 - Antenna Battery And Belt Clip Installation

LBI-38861C

To replace a daughter board:

1. Ensure that the control or RF printed circuit board are mechanically clean.

2. Insert the daughter board in the required position on the control or RF board and be sure that it is properly seated.

3. Solder the daughter board into position.

SMD COMPONENT REMOVAL AND REPLACEMENT

When removing and replacing the SMD components follow the procedure given below using a soldering iron and a solder sucker.

To Remove SMD Components

1. Unsolder the component by heating one pad and using a solder sucker to remove the solder. Then apply heat to the other pad and lift the component from the board.

To Replace SMD Components

With the PCB appropriately held in the best position for

repair:

1. Ensure that all ex cess solder and old glue is removed from the board and the pads on the printed circuit board and component solder pads are mechanically clean.

2. Centrally locate the component between the printed circuit board pads.

3. Using the soldering iron apply sufficient heat to the SMD component pads and the corresponding printed circuit board pads to set the component in position.

PERFORMANCE TEST

AND ALIGNMENT

TEST EQUIPMENT REQUIRED

Either of the following test equipment lists may be used for

test and alignment.

Discrete Test Equipment List

1. Volt, Ohm and Amp Meter, AVO 8

2. Power Meter, Bird 43

3. Power Supply, Farnell LS30-10

4. Oscilloscope, 20 MHz dual beam (HAMEG HM203_5)

5. Frequency Counter, Farnell 600 MHz

6. AF Signal Generator

7. RF Signal Generator, Marconi 2018A

8. Sinadder

9. Modulation Meter

10. Power Meter

11. Spectrum Analyzer (optional)

12. Coupler

13. 1/4 UNEF to BNC Adaptor, Part No. 344A4209P42

To avoid damage to the main PCB soldering must be accomplished quickly.

NOTE

Figure 5 - Test Set Setup

Do not allow the soldering iron tip to come contact with the body of the replacement SMD component.

Avoid prolong application of heat to the pads of the replacement SMD component. Damage to the component may result.

Do not use SMD components that do not accept solder properly. They may not function as required or the working life of the component may be reduced due to chemical contamination.

CAUTION

Figure 4 - Discrete List Text Equipment Setup

LBI-38861C

Test Set Equipment List

1. Test Set, Marconi TF 2955

2. Volt Ohm an d Am p Me t er, AVO 8

3. Power Supply, Farnell LS30-10

Test Equipment Setup

Refer to Figure 4, Discrete List or Figure 5, Test Set.

1. Connect power supply as shown with the positive lead of the power supply connected to the 10.8V terminal and the negative lead to the radio chassis.

2. Connect the audio and PTT connections to the 6-pin accessories socket on the top panel as indicated below.

Pin 1 - Transmitter audio microphone load, 600

ohm impedance 2 - Not used 3- Receiver audio speaker load, 8 Ohm im-

pedance 4,6- Ground 5 - PTT

3. Set the modulation level of the signal generator for

3.0 kHz deviation for 25 kHz channel spac i ng .

If a component has be en changed to provide different channel spacing or operating frequency be sure the associated components in the receiver and transmitter have also been changed. Refer to the Parts List to identify the correct components.

EEPROM Program Verification

Be sure the EEPROM has been p rogrammed to customer specifications, otherwise use a test EEPROM programmed with the low, center and high RX/TX frequencies for that split prior to aligning the radio.

When Channel Guard chec ks are required use the CG frequencies listed below for test operation.

Lowest RX/TX frequency channel 67.0 Hz CTCSS Middle RX/TX frequency channel DCS Code 072 Highest RX/TX frequency channel 250.3 Hz CTCSS

Channel Guard tones and codes are giv en in Tables 5 and

Table 5 - Standard CTCSS Tones

No.

Freq.

(Hz)

No.

Freq.

(Hz)

No.

Freq.

(Hz)

No.

Freq.

(Hz)

01 67.0 11 97.4 21 136.5 31 192.8 02 71.9 12 100.0 22 141.3 32 203.5 03 74.4 13 103.5 23 146.2 33 210.7 04 77.0 14 107.2 24 151.4 34 218.1 05 79.7 15 110.9 25 156.7 35 225.7 06 82.5 16 114.8 26 162.2 36 233.6 07 85.4 17 118.8 27 167.9 37 241.8 08 88.5 18 123.0 28 173.8 38 250.3 09 91.5 19 127.3 29 179.9 10 94.8 20 131.8 30 186.2

Table 6 - Standard DCS Codes

No. Code No. Code No. Code No. Code

1 023 21 134 41 306 61 503 02 025 22 143 42 311 62 506 03 026 23 152 43 315 63 516 04 031 24 155 44 321 64 532 05 032 25 516 45 343 65 546 06 043 26 162 46 346 66 567 07 047 27 165 27 251 67 607 08 051 28 172 28 364 68 612 09 054 29 174 49 365 69 624 10 065 30 205 50 371 70 627 11 071 31 223 51 411 71 631 12 072 32 226 52 412 72 632 13 073 33 243 53 413 73 654 14 174 34 244 54 423 74 662

No. Code No. Code No. Code No. Code

15 114 35 245 55 431 75 664 16 115 36 251 56 432 76 703 17 116 37 261 57 445 77 713 18 125 38 263 58 464 78 723 19 131 39 265 59 465 79 731 20 132 40 271 60 466 80 732

81 734 82 743 83 754

TRANSMITTER PERFORMANCE

TESTS

POWER OUTPUT

1. Set the power supply voltage to 10.8 Vdc. Monitor the power supply voltage during transmit.

2. Press the PTT switch and record the output power. The nominal outputs are 1 or 5 Watts.

3. Reduce the power supply voltage to 8.86 Vdc and verify check that the power output is above 65% of the recorded output power.

4. Release the PTT switch.

PEAK DEVIATION

1. Using the channel switch on the radio selec t the channel with lowest frequency.

2. Connect the oscilloscope to the deviation meter, refer to Figure 4.

3. Set the audio signal generator to 1 kHz at 3 kHz deviation.

4. Press the PTT switch and observe the oscilloscope display for a noise free 1 kHz au dio tone.

Set the audio signal generator output level to 3 kHz deviation and sweep from 300 Hz t o 3 kHz. R ecor d the peak deviation.

6. Check the peak deviation. It should be less than 5 kHz.

7. Release the PTT switch.

8. Select the channel with the highest TX frequency and repeat steps 3-7.

SPECTRUM TEST

1. Conne ct a spectrum ana lyzer and RF pow er meter to the antenna (ANT) socket, refer to Figure 4.

2. Press the PTT switch. Observe the output on the spectrum analyzer.

3. All spurious signals and harmonics should be below -36 dBm.

4. Release the PTT switch.

RECEIVER PERFORMANCE TESTS

SENSITIVITY

The SINAD or noise quieting sensitivity performance test

may be used to test the sensitivity of the receiver.

SINAD Sensitivity

1. Connect the RF signal generator to the coupler a s shown in Figure 4.

2. Set the RF signal generator to the receive frequency of the selected channel.

3. Connect the leads of the SINAD meter to the speaker through the adaptor socket on the top panel.

4. Press the monitor socket and set the volume control to mid-range.

5. Set the deviation for 3 kHz.

6. Set the audio generator to 1 kHz.

Table 6 - Standard DCS Codes (Con’t)

It may be necessary to notch the fundamental signal during this test.

NOTE

LBI-38861C

7. Adjust the RF signal generator level until the SINAD meter reads 12 dB.

8. Check that the signal generator RF level is less than 0.28 µV EMF.

Noise Quieting Sensitivity

1. Disconnect the signal generator from the radio.

2. Set the radio power meter to volts and connect the audio power meter to the speaker terminals.

3. Press and hold the monitor button.

4. Connect the signal generator to the radio

5. Adjust the VOLume control to obtain a noise reading of 1 Vrms.

6. Set the deviation to 3 kHz..

7. Set the audio generator to 1 kHz.

8. Adjust the RF level of the signal generator RF level for a noise reading on the meter of 0.1 Vrms. This is the 20 dB noise quieting point. Check that the RF level is less than 0.5 µV EMF.

Squelch Sensitivity

1. Set the RF signal generator to the receive frequency for the selected channel.

2. Set the deviation to 3 kHz.

3. Set the AF generator to 1 kHz.

Set the RF signal generator to 20 dB or 2.0 µV and verify that an audible tone is heard.

5. Switch off the RF signal generator and verify that no audio is heard (received).

AUDIO OUTPUT

1. Set the RF signal generator to 1 mV EMF and the deviation to 3 kHz.

2. Set the audio generator to 1 kHz.

3. Set the power voltmeter to ac volts.

4. Connect the power voltmeter to the accessories socket.

5. Adjust the volume control of the radio under test to fully clockwise.

6. The meter should indicate 2.0 V or greater, the power meter should read 500 mW or greater.

ALIGNMENT PROCEDURES

When performing the transmitter and receiver alignment prcedures, refer to Figure 6 for location of test points and adjustment controls.

PLL ALIGNMENT

1. Connect an RF power meter to the ANT socket.

2. Using the channel switch, select channel with the lowest receive frequency.

3. Adjust VR201 to unmute the squelch.

4. Connect a DC voltmeter to test point 1 (TP1), accessed through the hole in the VCO cover.

5. Adjust TC30 1 for 1.4 (0.05) volts at TP1.

6. Using the channel switch, select channel with the highest transmit frequency.

7. Press the PTT switch to transmit.

8. At TP1 measure and check that the voltage is 6.0 volts or less. If the voltage is above, 6.0 volts the VCO may not lock because the frequency is program med too high above the lowest receive frequency.

9. Set the PTT switch to receive.

10. If step 3 was performed, readjust the squelch setting.

AUTOMATIC POWER ADJUSTMENT

1. Using the channel switch, select the center receive frequency channel.

2. Press the PTT switch.

3. Adjust VR2 to provide rated transmit power.

4. Release the PTT switch.

DIGITAL CHANNEL GUARD MODULATION ADJUSTMENT

1. Connect the test equipment to the radio as shown in Figure 4.

2. Using the channel switch select the DCS coded frequency channel.

3. Press the PTT switch and observe the demodulated waveform on the oscilloscope. Compare with Figure

4. If necessary adjust RV403 to achieve the waveform.

MODULATION DEVIATION ADJUSTMENT

1. Connect a power meter and a coupler to the radio as shown in Figure 4.

2. Connect an audio generator as shown in Figure 4.

3. Set the audio output level to 6 0 mV and the audio frequency to 1 kHz.

4. Using the channel switch, select the highest transmit channel without Channel Guard.

5. Press and hold the PTT switch.

6. Adjust RV402 for maximum system deviation.

7. Release the PTT switch.

8. Using the channel switch, select the lowest transmit channel without Channel Guard.

9. Press and hold the PTT switch.

10. Measure the deviation and verify that it is below peak system deviation. If the deviation is greater than the peak system deviation adjust RV402 to peak system deviation.

11. Select channel showing the highest deviation, sweep the audio frequency between 300 Hz and 3 kHz. Adjust RV2 to ensure deviation is below peak system deviation at all frequencies.

12. Disconnect the audio generator and set the PTT switch to the off position.

CTCSS/DCS DEVIATION ADJUSTMENT

1. Connect a power meter and modulation meter to the radio as shown in Figure 4.

2. Using the channel switch select a transmit channel with Channel Guard.

3. Press the PTT switch.

4. Adjust RV403 for 10% of maximum system deviation (500 to 750 Hz).

5. Using the oscilloscope check that the positive and negative peak deviations are equal.

6. If necessary adjust RV401 to obtain equa l and opp osite peak deviations.

7. Release the PTT switch and disconnect the deviation meter.

If the Phase Lock Loop (PLL) is out of lock, an audible warning will be heard and the red LED on the top panel will flash.

NOTE

If the power save format is programmed an d the squelch is closed (muted), there will be a periodic voltage change at TP1 unless step 3 below is performed. If the power mode has not been selected in programming, it is not necessary to perform step 3.

NOTE

Any transmit frequency between 450 MHz and 470 MHz can be programmed and us ed, ho wever the highest transmit frequency can typically be only 8 MHz above the lowest receive frequency.

NOTE

Transmit periods longer than five minutes are to be avoided.

NOTE

Figure 6 - Demodulated DCS Waveform

The receiver operational bandwidth is typically 10 MHz. There may be some degradation in actual receiver performance if a bandwidth of more than 10 MHz is used.

NOTE

LBI-38861C

RECEIVER ALIGNMENT

RF TUNING

1. Connect to the radio an RF signal generator to the ANT socket through an adaptor and a SINAD meter to the accessories socket as shown in Figure 4.

2. On the TX/RX printed circuit board adjust VR201 fully counter clockwise position.

3. Adjust the VOLume control to the mid position.

4. Using the channel switch select the center frequency channel.

5. Set the RF signal generator to the receive channel frequency and set to 60% deviati o n.

6. Set the audio frequency to 1 kHz.

7. Adjust the RF output voltage level of the RF signal generator until the 1 kHz signal is audible. Note the RF output voltage level and the SINAD reading.

8. Adjust FL3 to for an improvement in SINAD.

9. Adjust the RF output voltage level of the RF signal generator while keeping the SINAD meter readings between 12 and 20 dB.

10. Adjust FL2 for an improvement in SINAD.

11. Ad just the RF output voltage level of the RF signal generator while keeping the SINAD meter readings between 12 and 20 dB.

12. Adjust FL1 and check for an RF voltage signal level of

0.5 µVpd and a SINAD meter reading of between 12 and 20 dB.

13. If the readings in step 11 are not as stated, adjust the RF output voltage level of the RF signal generator to a achieve SINAD meter reading between 12 and 20 dB.

14. Adjust T4 and check for an RF voltage signal level of

0.25 µVpd and a SINAD meter reading between 12 and 20 dB. Check the upper and lower sensitivities.

15. If the readings in step 14 are not as stated, adjust the RF output voltage level of the RF signal generator to achieve a SINAD meter reading between 1 2 and 20 dB.

16. If the SINAD meter reading is below 12 dB, repeat steps 7 to 16. Otherwise, reset VR201 to the required operating position.

DISCRIMINATOR TUNING

1. Set the RF level to 10 mVpd.

2. Adjust T5 for maximum audio output and observe the oscilloscope for sinewave distortion.

3. Adjust T4 for minimum distortion, normally less than 3%.

4. Disconnect the test equipment.

SQUELCH ADJUSTMENT

1. Set the RF signal generator to the receiver frequency with 60% deviation. Set audio si gn al t o 1 kHz.

2. Adjust the RF output level of the RF signal generator until the 1 kHz signal is audible.

3. Adjust the RF signal to the level desired for squelch sensitivity. Monitor SINAD, usually 12 dB.

4. On the TX/RX board, adjust VR 201 until th e squelch is just unmuted (open).

5. Turn the RF generator off.

6. Press and release the monitor button and check that the audio output may be muted/unmuted.

7. Disconnect the test equipment.

PROGRAMMING THE RADIO

Refer to programming manual TQ3375 wh en programming the radio. Programming cable TQ3376 is required to interconnect the radio and PC programmer.

SERVICING THE BATTERY

BATTERY CHARGING AND CARE

To insure peak performance from your radio, the battery pack must be fully charged. Proper care and charging will allow maximum performance and life of your battery pack.

New batteries or batteries that have been stored for a long period of time, should be fully charged before placing into service. The battery should be replaced if the charge state is in doubt.

Figure 7 - Location Alignment Test And Adjustments

LBI-38861C

If the rechargeable battery is only sparingly or seldom used and is left on continuous charge for one or two months at a time, it could experience reduced capacity. This would severely reduce the life of the battery between charges.

The rechargeable nickel-cadmium battery packs may be recharged using the MONOGRAM Dual Desk Charger 344A420P21, separately or while attached to the radio.

MONOGRAM BATTERY CHARGER 344A4209P21

The charger operates from a 110/120V AC power source and should be installed with a suitable 3 ampere fused plug. The unit is capable of continuo us o pera tion . Ho wever, the unit should be disconnected from the power source when not in use. To operate the Dual Desk Charger, plug the charger into the power source and check that the PO WER indicator (red) lights.

Rear Charge Slot

Insert battery or radio with battery into the Rear Charge Slot, observing correct polarity. The FAST LED (green) will begin to flash and fast charge begins according to th e amount of charge in the battery. (In the case of a fully discharged battery, the initial charge is executed during the first minute. The FAST and SLO W LED’s will not be illuminated. After the initial charge, the battery mode will change to fast charge).

In the fast charge mode, the MGHC5L battery will take approximately 1 hour to fully charge and the MGHC5M battery will take approximately 2 hours, depending on the initial charge of the battery.

If the initial charge on the battery is over 95%, then the fast charge mode will turn to a "trickle-charge" mode. In the "trickle-charge" mode, the battery will be maintained at full charge, provided the radio is turned off. The SLO W LED ( red) is turned on continuously, and may turn off momentarily every 34 seconds by the "trickle-charging" current. If the battery is charged to 100% of its capacity, the FAST LED will turn off and the SLOW LED will turn on.

Front Charge Slot

Insert battery or radio with battery into Front Charge Slot, observing correct polarity. The SLOW LED (green) will be illuminated, and a charging current of approximately 50mA is provided to the battery. In the slow charge mode, the MGHC5L battery will take approximately 14 hours to fully charge, and the MGHC5M battery will take approximately 20 hours.

Table 7- Battery Charging Times

BATTERY CAPACITY CHARGE TIME(hours)

FAST SLOW

600mAh 1 10-14

1200mAh 2 20-24

RECHARGABLE BATTERY PACK DISPOSAL

The product that you have purchased contains a rechargeable, recyclable battery. At the end of its useful life, under various state and local laws, it may be illegal to dispose of this battery into the municipal waste stream. Check with your

local solid waste officials for details in your area for recycling options or proper disposal. Call Toll Free 1-800-8-BATTERY for information and/or procedures for returning rechargeable batteries in your state.

Figure 9 - Battery Charger

Figure 8 - Batteries

If the charge indicator does not light, check to see that the battery has been inserted pr operly.

Do not charge the battery when battery temperature is below 10°C or 40°C. Usable life of the battery may be reduced.

Do not use the charger if it is wet or damaged in any way.

Do not toss batteries in a fire; they may explode.

CAUTION

On occasion when charging a new battery or a battery which has been out of use for a few months, the charger will prematurely switch to the trickle charge before the battery has been fully charged. If this happens, allow the battery to continue trickle-charging overnight. Then remove and reinsert the battery and observe that the battery goes through a normal rapid charge before putting it into service.

NOTE

LBI-38861C

PARTS LIST

SYMBOL PART NO. DESCRIPTION

C325 131-030-2 CER MONO 1pF:GRM40COG010C50. C326 136-816-5 CER MONO 68pF:GRM40COG680J50. C327 136-816-5 CER MONO 68pF:GRM40COG680J50. C328 132-220-2 CER MONO 220pF:GRM40COG221J50. C330 130-184-4

CER MONO 0.001µF:GRM40X7R102K50.

C331 130-184-4

CER MONO 0.001µF:GRM40X7R102K50.

C334 142-223-8

TANTAL CHIP 2.2µF:293D225X0016B2T. C401 130-172-2 CER MONO GRM40X7R103K50VM6305-500PT. C402 130-172-2 CER MONO GRM40X7R103K50VM6305-500PT. C403 130-172-2 CER MONO GRM40X7R103K50VM6305-500PT. C404 130-175-5

CER MONO 0.01µF:GRM40X7R103J50. C405 130-172-2 CER MONO GRM40X7R103K50VM6305-500PT. C406 130-172-2 CER MONO GRM40X7R103K50VM6305-500PT. C407 130-172-2 CER MONO GRM40X7R103K50VM6305-500PT. C408 130-172-2 CER MONO GRM40X7R103K50VM6305-500PT. C409 130-175-5

CER MONO 0.01µF:GRM40X7R103J50. C410 134-722-1 CER MONO 47pF:GRM40COG470J50. C411 134-722-1 CER MONO 47pF:GRM40COG470J50. C412 134-722-1 CER MONO 47pF:GRM40COG470J50. C413 134-722-1 CER MONO 47pF:GRM40COG470J50. C414 134-722-1 CER MONO 47pF:GRM40COG470J50. C415 130-185-5

CER MONO 0.1µF:GRM40Y5V104Z25. C416 134-722-1 CER MONO 47pF:GRM40COG470J50. C417 134-722-1 CER MONO 47pF:GRM40COG470J50. C418 134-722-1 CER MONO 47pF:GRM40COG470J50. C419 134-722-1 CER MONO 47pF:GRM40COG470J50. C420 134-722-1 CER MONO 47pF:GRM40COG470J50. C421 134-722-1 CER MONO 47pF:GRM40COG470J50. C422 130-172-2 CER MONO GRM40X7R103K50VM6305-500PT. C424 130-185-5

CER MONO 0.1µF:GRM40Y5V104Z25. C425 134-726-3 CER MONO 470pF:GRM40COG471J50. C426 130-175-5

CER MONO 0.01µF:GRM40X7R103J50. C427 130-175-5

CER MONO 0.01µF:GRM40X7R103J50. C428 132-220-2 CER MONO 220pF:GRM40COG221J50. C429 134-726-3 CER MONO 470pF:GRM40COG471J50. C430 141-046-0

TANTALUM CHIP 10µF:293D106X0010B2T. C431 141-046-0

TANTALUM CHIP 10µF:293D106X0010B2T. C432 130-234-5

CER MONO 0.002µF:GRM40X7R223J25. C433 141-046-0

TANTALUM CHIP 10µF:293D106X0010B2T. C434 141-046-0

TANTALUM CHIP 10µF:293D106X0010B2T. C435 999-062-1

TANTALUM CHIP 0.47µF:293D335X0010A2T. C436 130-185-5

CER MONO 0.1µF:GRM40Y5V104Z25. C437 141-046-0

TANTALUM CHIP 10µF:293D106X0010B2T. C438 141-046-0

TANTALUM CHIP 10µF:293D106X0010B2T. C439 134-706-3 CER MONO 470pF:GRM40COG471J50. C440 141-046-0

TANTALUM CHIP 10µF:293D106X0010B2T. C441 130-A22-0

CER MONO 0.0018µF:GRM40X7R182K50. C442 130-234-5 CER MONO GRM40X7R223J50V M6305-500PT. C443 130-428-4

CER MONO 0.0047µF:GRM40X7R472J50. C444 130-513-7

CER MONO 0.0056µF:GRM40X7R562K50. C445 130-173-3

CER MONO 0.1µF:GRM42-6X7R104K25. C446 135-613-9 CER MONO 56pF:GRM40COG560J50. C447 130-234-5 CER MONO GRM40X7R223J50V M6305-500PT. C448 134-722-1 CER MONO 47pF:GRM40COG470J50. C449 130-234-5 CER MONO GRM40X7R223J50V M630.

NOTE: When ordering parts for your Monogram radio, precede all parts numbers with the prefix

R29/.

SYMBOL PART NO. DESCRIPTION

C1 130-171-1

CER MONO 0.001µF:GRM42-6COG102J100V.

C2 130-184-4

CER MONO 0.001µF:GRM40X7R102K50. C3 133-010-4 CER MONO 30 pF:GRM40COG300J50V. C5 130-184-4

CER MONO 0.001µF:GRM40X7R102K50. C6 130-184-4

CER MONO 0.001µF:GRM40X7R102K50. C7 130-A17-6

CER MONO 0.001µF:GRM40COG102J50-500PT. C8 130-184-4

CER MONO 0.001µF:GRM40X7R102K50. C9 130-184-4

CER MONO 0.001µF:GRM40X7R102K50. C11 130-172-2 CER MONO GRM40X7R103K50VM6305-500PT. C12 130-172-2 CER MONO GRM40X7R103K50VM6305-500PT. C13 130-172-2 CER MONO GRM40X7R103K50VM6305-500PT. C14 130-172-2 CER MONO GRM40X7R103K50VM6305-500PT. C16 130-172-2 CER MONO GRM40X7R103K50VM6305-500PT. C17 130-172-2 CER MONO GRM40X7R103K50VM6305-500PT. C18 130-172-2 CER MONO GRM40X7R103K50VM6305-500PT. C19 130-172-2 CER MONO GRM40X7R103K50VM6305-500PT. C20 130-234-5 CER MONO GRM40X7R223J50VM6305-500PT. C20 130-331-9

CER MONO 0.039µF:GRM40X7R393J25. C21 130-331-9

CER MONO 0.039µF:GRM40X7R393J25. C23 130-175-5 CER MONO 0.01:GRM40X7R103J50. C24 130-175-5 CER MONO 0.01:GRM40X7R103J50. C25 130-175-5 CER MONO 0.01:GRM40X7R103J50. C26 130-175-5 CER MONO 0.01:GRM40X7R103J50. C28 130-175-5 CER MONO 0.01:GRM40X7R103J50. C29 130-175-5 CER MONO 0.01:GRM40X7R103J50. C30 130-175-5 CER MONO 0.01:GRM40X7R103J50. C31 130-175-5 CER MONO 0.01:GRM40X7R103J50. C32 130-175-5 CER MONO 0.01:GRM40X7R103J50. C33 132-220-2 CER MONO 220pF:GRM40COG221J50. C34 132-220-2 CER MONO 220pF:GRM40COG221J50. C35 130-184-4

CER MONO 0.001µF:GRM40X7R102K50. C37 130-184-4

CER MONO 0.001µF:GRM40X7R102K50. C38 130-184-4

CER MONO 0.001µF:GRM40X7R102K50. C39 130-184-4

CER MONO 0.001µF:GRM40X7R102K50. C40 132-026-4 CER MONO 2pF:GRM42-6COG020C200V. C42 130-185-5

CER MONO 0.1µF:GRM40Y5V104Z25. C43 130-185-5

CER MONO 0.1µF:GRM40Y5V104Z25. C44 130-185-5

CER MONO 0.1µF:GRM40Y5V104Z25. C45 130-185-5

CER MONO 0.1µF:GRM40Y5V104Z25. C46 130-185-5

CER MONO 0.1µF:GRM40Y5V104Z25. C47 130-185-5

CER MONO 0.1µF:GRM40Y5V104Z25. C48 132-220-2 CER MONO 220pF:GRM40COG221J50. C49 132-220-2 CER MONO 220pF:GRM40COG221J50. C50 134-302-2 CER MONO 43pF:GRM42-6COG436J200. C51 132-220-2 CER MONO 220pF:GRM40COG221J50. C52 132-220-2 CER MONO 220pF:GRM40COG221J50. C53 132-220-2 CER MONO 220pF:GRM40COG221J50. C54 132-220-2 CER MONO 220pF:GRM40COG221J50. C55 132-220-2 CER MONO 220pF:GRM40COG221J50. C56 132-220-2 CER MONO 220pF:GRM40COG221J50. C57 132-220-2 CER MONO 220pF:GRM40COG221J50.

SYMBOL PART NO. DESCRIPTION

C58 132-220-2 CER MONO 220pF:GRM40COG221J50. C59 132-220-2 CER MONO 220pF:GRM40COG221J50. C60 132-220-2 CER MONO 220pF:GRM40COG221J50. C61 132-220-2 CER MONO 220pF:GRM40COG221J50. C62 132-220-2 CER MONO 220pF:GRM40COG221J50. C63 132-220-2 CER MONO 220pF:GRM40COG221J50. C64 132-220-2 CER MONO 220pF:GRM40COG221J50. C65 132-220-2 CER MONO 220pF:GRM40COG221J50. C66 131-813-3 CER MONO 18pF:GRM40COG180J50. C67 136-007-7 CER MONO 6pF:GRM40COG060D50. C68 134-722-1 CER MONO 47pF:GRM40COG470J50. C69 132-407-5 CER MONO 24pF:GRM40COG240J50. C70 13A-001-1 CER MONO 1pF:GRM42-6COG010C200V. C71 131-106-8 CER MONO 11pF:GRM42-6COG110J2. C72 131-029-2 CER MONO 10pF:GRM42-6COG0100D200V. C73 13A-001-1 CER MONO 1pF:GRM42-6COG010C200V. C74 132-026-4 CER MONO 2pF:GRM42-6COG020C200V. C75 131-011-5 CERAMIC 10pF 50WV:D "NPO". C76 134-302-2 CER MONO 33pF:GRM42-6COG330J200V. C77 134-302-2 CER MONO 33pF:GRM42-6COG330J200V. C78 131-029-2 CER MONO 10pF:GRM42-6COG010C200V. C79 132-021-9 CER MONO 20pF: GRM40COG200J20. C80 131-103-5 CER MONO 11pF:GRM40COG110J50. C81 130-220-2 CER MONO 220pF:GRM40COG221J50. C82 132-171-1

CER MONO 0.001µF:GRM42-6COG102J100V. C83 132-011-0 CER MONO 2pF:GRM40COG020C50. C84 136-010-4Z CER MONO 5pF:GRM40COG0C50. C85 139-101-3 CER MONO 91pF:GRM40COG910J50V. C86 134-007-7Z CER MONO 4pF:GRM40COG040C50. C87 139-101-3 CER MONO 91pF:GRM40COG910J50V. C88 139-101-3 CER MONO 91pF:GRM40COG910J50V. C89 141-001-9

TANTALUM: 1.0µF 16WV:DA1C010M. C90 131-103-5 CER MONO 11pF:GRM40COG110J50. C91 133-925-1 CER MONO 390pF:GRM40COG391J50-500PT. C92 101-042-4

ELECTROLYTIC 10µF 16WV:DN1C100MIS. C93 136-816-5 CER MONO 68pF:GRM40COG80J50. C94 101-007-3

CAPACITOR ELECT 1.0µF 50V SRA(M):4X7. C95 138-004-4 CER MONO 8pF:GRM40COG080D50. C96 104-739-6

CAPACITOR ELECT 47µF 16V SRA:(M):6.3X7. C97 132-220-2 CER MONO 220pF:GRM40COG221J50. C98 102-275-3

CAPACITOR ELECT 220µF 10WV:6.3X7.5. C99 141-003-1

TANTALUM 10µF 16WV:DN1C100MIS. C100 101-043-5

CAPACTOR ELECT 10µF 16V SRA(M):4X7. C101 136-816-5 CER MONO 68pF:GRM40COG680J50. C102 133-911-8 CER MONO 39pF:GRM40COG390J50. C103 131-208-7 CER MONO 12pF:GRM40COG120J50. C104 130-172-2 CER MONO GRM40X7R103K50VM6305-500PT. C105 130-330-8

CER MONO 0.033µF:GRM40X7R333J50. C106 132-012-1 CER MONO 20pF:GRM40COG200J50. C107 133-321-5 CER MONO GRM40COG3R3C40VM6305-500PT. C108 141-003-1

TANTALUM 10µF 16WV:DN1C100MIS. C109 141-003-1

TANTALUM 10µF 16WV:DN1C100MIS. C110 140-101-1

TANTALUM 0.1µF 16WV:DA1CORIM. C111 140-101-1

TANTALUM 0.1µF 16WV:DA1CORIM. C112 141-014-1

TANTALUM CHIP 1µF 16WV:TCM1C010AS#R.

SYMBOL PART NO. DESCRIPTION

C113 141-003-1

TANTALUM 10µF 16WV:DN1C100MIS. C114 135-613-9 CER MONO 56pF:GRM40COG560J50. C115 133-010-4 CER MONO 30pF:GRM40COG300J50V. C116 131-027-0 CER MONO GRM40COG101J50V:M6305-500PT. C117 141-001-9

TANTALUM 1.0µF 16WV:DA1C010M. C118 141-003-1

TANTALUM 10µF 16WV:DN1C100MIS. C119 101-043-5

CAPACITOR ELECT 10µF 16V SRA(M):4X7. C120 141-001-9

TANTALUM 1.0µF 16WV:DA1C010M. C121 130-425-1

CER MONO 0.047µF:GRM40X7R473J25. C122 141-003-1

TANTALUM 10µF 16WV:DN1C100MIS. C130 132-011-0 CER MONOI 2pF: GR40COG020C50. C148 101-050-1

CAPACITOR ELECT 100µF 10V SRA(M):6.3X7. C149 144-723-3

TANTALUM CHIP 47µF:293D476X0006C2T. C150 130-184-4

CER MONO 0.001µF:GRM40X7R102K50. C158 134-722-1 CER MONO 47pF:GRM40COG470J50. C159 134-722-1 CER MONO 47pF:GRM40COG470J50. C160 134-722-1 CER MONO 47pF:GRM40COG470J50. C161 134-722-1 CER MONO 47pF:GRM40COG470J50. C162 134-722-1 CER MONO 47pF:GRM40COG470J50. C163 102-275-3

CAPACITOR ELECT 220µF 10WV:6.3X7.5. C164 134-722-1 CER MONO 47pF:GRM40COG470J50. C165 134-722-1 CER MONO 47pF:GRM40COG470J50. C167 134-722-1 CER MONO 47pF:GRM40COG470J50. C168 134-722-1 CER MONO 47pF:GRM40COG470J50. C169 134-722-1 CER MONO 47pF:GRM40COG470J50. C170 134-722-1 CER MONO 47pF:GRM40COG470J50. C171 134-722-1 CER MONO 47pF:GRM40COG470J50. C201 130-184-4

CER MONO 0.001µF:GRM40X7R102K50. C202 141-003-1

TANTALUM 10µF 16WV:DN1C100MIS. C203 130-172-2 CER MONO GRM40X7R103K50VM6305-500PT. C204 130-185-5

CER MONO 0.1µF:GRM40Y5V104Z25. C205 134-726-3 CER MONO 470pF:GRM40COG471J50. C206 130-305-6

CER MONO 0.033µF:GRM40X7R333K50. C207 140-101-1

TANTALUM 0.1µF 16WV:DA1CORIM. C208 130-185-5

CER MONO 0.1µF:GRM40Y5V104Z25. C300 132-220-2 CER MONO 220pF:GRM40COG221J50. C301 132-220-2 CER MONO 220pF:GRM40COG221J50. C302 131-208-7 CER MONO 12pF:GRM40COG120J50. C304 139-003-8 CER MONO 9pF:GRM40COG090C50V. C305 131-038-0 CER MONO 10pF:GRM40COG100F50. C306 130-184-4

CER MONO 0.001µF:GRM40X7R102K50. C307 139-101-3 CER MONO 91pF:GRM40COG910J50V. C308 131-038-0 CER MONO 10pF:GRM40COG100F50. C310 138-004-4 CER MONO 8pF:GRM40COG080D50. C312 131-030-2 CER MONO 1pF:GRM40COG10C50. C313 132-220-2 CER MONO 220pF:GRM40COG221J50. C314 130-172-2 CER MONO GRM40X7R103K50VM6305-500PT. C317 132-227-9 CER MONO GRM40COG2R2C50VM6305-500PT. C318 130-172-2 CER MONO GRM40X7R103K50VM6305-500PT. C319 133-321-5 CER MONO GRM40COG3R3C50VM6305-500PT. C320 131-030-2 CER MONO 1pF:GRM40COG010C50. C321 130-184-4

CER MONO 0.001µF:GRM40X7R102K50. C322 130-184-4

CER MONO 0.001µF:GRM40X7R102K50. C323 136-007-7 CER MONO 6pF:GRM40COG060D50. C324 130-504-9 CER MONO 0.5pF:GRM40COG0R5C50V.

LBI-38861C

PARTS LIST

SYMBOL PART NO. DESCRIPTION

C450 141-036-1

TANTAL CHIP 1µF:293D105X0016A2T. C451 134-706-3 CER MONO 220pF:GRM40COG221J50. C454 141-014-1

TANTALUM CHIP 1µF 16WV:TCMK010AS#R. C455 143-312-0

TANTALUM CHIP 3.3µF. C456 134-722-1 CER MONO 47pF:GRM40COG470J50. C457 130-185-5

CER MONO 0.1µF:GRM40Y5V104Z25. C458 130-173-3

CER MONO 0.1µF:GRM42-6X7R104K25. C460 131-511-0 CER MONO 15pF:GRM40COG150J50. C461 131-511-0 CER MONO 15pF:GRM40COG150J50. C462 130-425-1

CER MONO 0.047µF:GRM40X7R473J25. C463 130-425-1

CER MONO 0.047µF:GRM40X7R473J25. C464 130-425-1

CER MONO 0.047µF:GRM40X7R473J25. C465 130-425-1

CER MONO 0.047µF:GRM40X7R473J25. C466 130-425-1

CER MONO 0.047µF:GRM40X7R473J25. C467 130-425-1

CER MONO 0.047µF:GRM40X7R473J25. C468 130-425-1

CER MONO 0.047µF:GRM40X7R473J25. C469 130-425-1

CER MONO 0.047µF:GRM40X7R473J25. C470 141-036-1

TANTAL CHIP 1µF:293D105X0016A2T. C471 130-173-3

CER MONO 0.1µF:GRM42-6X7R104K25. C472 130-185-5

CER MONO 0.1µF:GRM40Y5V104Z25. C473 130-185-5

CER MONO 0.1µF:GRM40Y5V104Z25. C474 130-305-6

CER MONO 0.033µF:GRM40X7R333K. C475 130-305-6

CER MONO 0.033µF:GRM40X7R333K. C476 130-305-6

CER MONO 0.033µF:GRM40X7R333K. C477 130-305-6

CER MONO 0.033µF:GRM40X7R333K. C478 130-220-2 CER MONO 220pF:GRM40COG221J50. C601 130-185-2 CER MONO 0.1:GRM40Y5V109725. C602 134-722-1 CER MONO 47pF:GRM40COG470J50. C603 132-220-2 CER MONO 220pF:GRM40COG221J50. C604 130-184-4

CER MONO 0.001µF:GRM40X7R102K50. C605 130-185-5

CER MONO 0.1µF:GRM40Y5V104Z25. C700 130-176-6

CER MONO 0.1µF:GRM40X7R104J50. CF1 270-009-2 FILTER CERAMIC CFW455E. CON401 421-619-5 CONNECTOR 00-6200-167-012-800:ZIF. CON402 421-619-5 CONNECTOR 00-6200-167-012-800:ZIF. CON3 422-689-3 TDH CONNECTOR TDH2-8SG. CON404 422-746-1 MOLEX 14PIN FEMALE. CON405 421-618-4 CONNECTOR 00-6200-057-012-800:ZIF. CON406 422-470-1 MOLEX 4 PIN CONNECTOR. CON153 421-648-1 CONNECTOR HR10A-7R-6SB. CON151 422-367-2 HEADER PIN CONNECTORGDH2-6DBC. CON152 422-709-8 HEADER PIN FEMALE 6 PIN. CON201 422-083-5 4PIN HEADER (SQUELCH PCB). CON9 504-916 4P HOUSING ASSY. D1 245-013-1 DIODE 1N 4001 (1A50V). D2 245-013-1 DIODE 1N 4001 (1A50V). D3 243-026-3 DIODE SILICON SCHOTT1SS97. D4 243-012-0 DIODE MMBV3401. D5 243-012-0 DIODE MMBV3401. D6 243-012-0 DIODE MMBV3401. D7 243-012-0 DIODE MMBV3401. D8 243-051-5 DIODE SI KDS184S. D9 243-051-5 DIODE SI KDS184S. D10 243-024-1 DIODE SI MMBD2835 (A3). D13 243-054-8 DIODE SI TUNING BB619A.

SYMBOL PART NO. DESCRIPTION

D153 251-148-1 LED LAMP SCF33G2TT. D201 244-003-7 DIODE GE OA90. D202 244-003-7 DIODE GE OA90. D204 243-028-5 DIODE SI MBAV99-LT1. D301 243-050-4 DIODE VARACTOR 1SV153. D302 243-050-4 DIODE VARACTOR 1SV153. D401 243-051-5 DIODE SI KDS 184 D402 243-063-6 DIODE SWITCHING KDS181S. D403 243-052-6 DIODE SI KDS 193. FB1 320-536-5 CORE BEAD 56 59065-4B. FB2 320-536-5 CORE BEAD 56 59065-4B. FB3 320-536-5 CORE BEAD 56 59065-4B. FB4 320-536-5 CORE BEAD 56 59065-4B. FB5 320-536-5 CORE BEAD 56 59065-4B. FL1 320-877-5 COIL HELICAL 460MHZ 2 POLE. FL2 320-893-9 COIL HELICAL 460MHZ 2 POLE:F367 PN-K5005A. FL3 320-592-7 COIL HELICAL 440MHZ 2 POLE. FUSE 280-089-7 FUSE MICRO MS2(125V 2A SLOW). IC1 223-319-2 I.C MC145156DW2. IC2 223-313-6 I.C MC12022BD(S008). IC3 231-081-9 I.C LM3361AM. IC4 231-008-4 I.C LM386(803-N-3). IC5 223-418-8 I.C MC147808. IC6 223-119-8 I.C 78L05. IC402 223-224-9 I.C MC14066BD:SO14. IC403 223-320-2 I.C MC14504BD. IC404 231-082-0 I.C LM2902M. IC405 231-082-0 I.C LM2902M. IC406 223-378-5 I.C MC142100DW. IC407 231-073-3 I.C MF6CWM-100. IC408 229-401-2 I.C CAT93C46J. IC409 229-451-7 I.C Z86101ZFEC R562. IC410 231-082-0 I.C LM2902M. IC411 229-357-6 I.C GD74HC368DT. IC412 229-456-2 I.C LTC1059CS. L1 310-549-6 COIL SPRING 2.8X0.6%X1(1/2T)R. L2 310-618-5 COIL SPRING 3.6DIAX0.6DIAX1.5T: (R). L3 310-619-6 COIL SPRING 2.8DIAX0.6DIAX1.5T: (L). L4 310-551-7 COIL SPRING 2.4X0.4&X6(1/2T) R. L5 310-551-7 COIL SPRING 2.4X0.4&X6(1/2T) R. L6 310-550-6 COIL SPRING 2.4X0.4&X4(1/2T) R. L7 310-615-2 COIL SPRING 1.8DIAX0.4DIAX1.5T: (L). L8 310-616-3 COIL SPRING 1.8DIAX0.4DIAX2.5T: (L). L9 310-615-2 COIL SPRING 1.8DIAX0.4DIAX1.5T: (L). L10 310-381-0 COIL AXIAL 1MH:LAL03TB102K. L12 310-381-0 COIL AXIAL 1MH:LAL03TB102K. L13 310-381-0 COIL AXIAL 1MH:LAL03TB102K. L14 310-381-0 COIL AXIAL 1MH:LAL03TB102K. L15 310-381-0 COIL AXIAL 1MH:LAL03TB102K. L16 310-218-7

COIL AXIAL 1µH:LAL0.3X7TX1K.

L17 310-380-9

COIL AXIAL 100µH:LAL03TB101K.

L18 310-380-9

COIL AXIAL 100µH:LAL03TB101K.

L19 310-399-7

COIL AXIAL 0.68µH:LAL02TBR68M.

L20 310-399-7

COIL AXIAL 0.68µH:LAL02TBR68M.

L21 310-399-7

COIL AXIAL 0.68µH:LAL02TBR68M.

SYMBOL PART NO. DESCRIPTION

L23 310-380-9

COIL AXIAL 100µH:LAL03TB101K.

L24 310-289-1

COIL AXIAL 2.2µH:LAL03TB2R2M. L26 310-617-4 COIL SPRING 1.8DIAX0.4DIAX4.5T: (R). L27 310-614-1 COIL SPRING 1.2DIAX0.4DIAX4.5T: (R). L401 310-293-4

1 µH COIL. Q1 203-046-9 TRANSISTOR SRF1886. Q2 203-055-7 TRANSISTOR MRF581. Q3 200-003-5 TRANSISTOR BFR92A REEL. Q4 218-042-4 TRANSISTOR KSR2101 (T). Q5 218-042-4 TRANSISTOR KSR2101 (T). Q6 218-042-4 TRANSISTOR KSR2101 (T). Q7 218-042-4 TRANSISTOR KSR2101 (T). Q8 200-001-3 TRANSISTOR BC848C SOT-23. Q9 200-001-3 TRANSISTOR BC848C SOT-23. Q10 200-001-3 TRANSISTOR BC848C SOT-23. Q11 203-111-4 TRANSISTOR BCX-18. Q12 203-116-9 TRANSISTOR MMBFJ310 SOT-23. Q13 200-003-5 TRANSISTOR BFR92A REEL. Q14 200-002-4 TRANSISTOR BC858B SOT-23. Q15 218-038-0 TRANSISTOR KSR1102T. Q16 203-096-4 TRANSISTOR MMBC1321Q4. Q17 200-013-4 TRANSISTOR BCX17. Q18 200-013-4 TRANSISTOR BCX17. Q19 200-013-3 TRANSISTOR BC848C SOT-23. Q20 218-042-4 TRANSISTOR KSR2101 (T). Q21 202-097-0 TRANSISTOR KTN2369S. Q201 200-001-3 TRANSISTOR BC848C SOT-23. Q202 200-001-3 TRANSISTOR BC848C SOT-23. Q301 200-001-3 TRANSISTOR BC848C SOT-23. Q302 203-104-8 TRANSISTOR MRF5711. Q303 200-003-5 TRANSISTOR BFR92A REEL. Q304 200-003-5 TRANSISTOR BFR92A REEL. Q305 203-096-4 TRANSISTOR MMBC1321Q4. Q401 202-092-5 BRT KRA110S PK. Q402 202-085-8 BRT KRC101S ND. Q403 202-095-8 BRT KRC104S ND. Q404 202-095-8 BRT KRC104S ND. Q405 202-095-8 BRT KRC104S ND. Q406 202-090-3 BRT KRA103S PC. Q407 202-090-3 BRT KRA103S PC. Q408 202-096-9 BRT KRC110S NK. Q409 202-113-1 TRANSISTOR KTC 3875. Q410 202-095-8 BRT KRC104S ND. Q411 202-095-8 BRT KRC104S ND. Q412 207-006-1 TRANSISTOR FET. Q413 209-029-8 BRT KRC 104S ND. Q500 209-029-4 TRANSISTOR IRFD120. R1 009-220-7

RESISTOR METALFILM 22 OHM 1/4W ±5%. R2 002-272-9Z

RESISTOR METALFILM 2.7K OHM 1/8W ±5%. R3 060-220-0

RESISTOR CHIP 220 OHM 1/10W ±5%. R4 060-122-5

RESISTOR CHIP 1.2K OHM 1/10W ±5%. R5 060-103-8

RESISTOR CHIP 10K OHM 1/10W ±5%. R6 060-471-0

RESISTOR CHIP 470 OHM 1/10W ±5%. R7 060-223-3

RESISTOR CHIP 22K OHM 1/10W ±5%. R8 060-272-7

RESISTOR CHIP 2.7K OHM 1/10W ±5%.

SYMBOL PART NO. DESCRIPTION

R10 060-393-3

RESISTOR CHIP 39K OHM 1/10W ±5%.

R11 060-223-3

RESISTOR CHIP 22K OHM 1/10W ±5%.

R12 060-102-7

RESISTOR CHIP 1K OHM 1/10W ±5%.

R13 060-222-2

RESISTOR CHIP 2.2K OHM 1/10W ±5%.

R14 060-103-8Z

RESISTOR CHIP 10K OHM 1/10W ±5%.

R15 060-101-6Z

RESISTOR CHIP 100 OHM 1/10W ±5%.

R16 060-471-0

RESISTOR CHIP 470 OHM 1/10W ±5%.

R17 060-103-8

RESISTOR CHIP 10K OHM 1/10W ±5%.

R18 060-102-7

RESISTOR CHIP 1K OHM 1/10W ±5%.

R19 060-122-5

RESISTOR CHIP 1.2K OHM 1/10W ±5%.

R20 060-101-6

RESISTOR CHIP 100 OHM 1/10W ±5%.

R21 060-390-8

RESISTOR CHIP 39 OHM 1/10W ±5%.

R22 060-822-4

RESISTOR CHIP 8.2K OHM 1/10W ±5%.

R23 060-122-5

RESISTOR CHIP 1.2K OHM 1/10W ±5%.

R24 060-473-2

RESISTOR CHIP 47K OHM 1/10W ±5%.

R25 060-474-3

RESISTOR CHIP 470K OHM 1/10W ±5%.

R26 060-104-9

RESISTOR CHIP 100K OHM 1/10W ±5%.

R27 060-471-0

RESISTOR CHIP 470 OHM 1/10W ±5%.

R28 060-563-0

RESISTOR CHIP 56K OHM 1/10W ±5%.

R29 060-224-4

RESISTOR CHIP 220K OHM 1/10W ±5%.

R30 060-101-6

RESISTOR CHIP 100 OHM 1/10W ±5%.

R31 060-332-8

RESISTOR CHIP 3.3K OHM 1/10W ±5%.

R32 060-474-3

RESISTOR CHIP 470K OHM 1/10W ±5%.

R33 060-471-0

RESISTOR CHIP 470 OHM 1/10W ±5%.

R34 060-471-0

RESISTOR CHIP 470 OHM 1/10W ±5%.

R35 060-393-3

RESISTOR CHIP 39K OHM 1/10W ±5%.

R36 060-393-3

RESISTOR CHIP 39K OHM 1/10W ±5%.

R37 060-471-0

RESISTOR CHIP 470 OHM 1/10W ±5%.

R38 060-103-8

RESISTOR CHIP 10K OHM 1/10W ±5%.

R39 060-272-7

RESISTOR CHIP 2.7K OHM 1/10W ±5%.

R40 060-000-8

RESISTOR CHIP 0 OHM 1/10W ±5%.

R41 060-222-2

RESISTOR CHIP 2.2K OHM 1/10W ±5%.

R42 060-392-2

RESISTOR CHIP 3.9K OHM 1/10W ±5%.

R42 060-472-1

RESISTOR CHIP 4.7K OHM 1/10W ±5%.

R43 060-122-5

RESISTOR CHIP 1.2K OHM 1/10W ±5%.

R44 060-122-5

RESISTOR CHIP 1.2K OHM 1/10W ±5%.

R45 060-102-7

RESISTOR CHIP 1K OHM 1/10W ±5%.

R46 060-102-7

RESISTOR CHIP 1K OHM 1/10W ±5%.

R47 060-153-3

RESISTOR CHIP 15K OHM 1/10W ±5%.

R49 060-154-4

RESISTOR CHIP 150K OHM 1/10W ±5%.

R50 060-392-2

RESISTOR CHIP 3.9K OHM 1/10W ±5%.

R51 060-682-4

RESISTOR CHIP 6.8K OHM 1/10W ±5%.

R53 060-103-8Z

RESISTOR CHIP 10K OHM 1/10W ±5%.

R54 060-123-6

RESISTOR CHIP 12K OHM 1/10W ±5%.

R55 060-332-8

RESISTOR CHIP 3.3K OHM 1/10W ±5%.

R56 060-122-5

RESISTOR CHIP 1.2K OHM 1/10W ±5%.

R57 060-223-3

RESISTOR CHIP 22K OHM 1/10W ±5%.

R58 060-473-2

RESISTOR CHIP 47K OHM 1/10W ±5%.

R59 060-102-7

RESISTOR CHIP 1K OHM 1/10W ±5%.

R60 060-101-6

RESISTOR CHIP 100 OHM 1/10W ±5%.

R61 060-181-8

RESISTOR CHIP 180 OHM 1/10W ±5%.

R99 060-222-2

RESISTOR CHIP 2.2K OHM 1/10W ±5%.

R149 060-152-2

RESISTOR CHIP 1.5K OHM 1/10W ±5%.

LBI-38861C

PARTS LIST

SYMBOL PART NO. DESCRIPTION

R480 060-103-8Z

RESISTOR CHIP 10K OHM 1/10W ±5%.

R481 060-222-2

RESISTOR CHIP 2.2K OHM 1/10W ±5%.

R482 060-473-2

RESISTOR CHIP 47K OHM 1/10W ±5%.

R700 060-474-3

RESISTOR CHIP 470K OHM 1/10W ±5%. RV401 480-044-8 TRIMMER POT.METER NRV630HF01 B100K. RV402 480-045-9 TRIMMER POT.METER NRV630HF01 B20K. RV403 480-051-4 POTENTIOMETER NRV630HF01 B50KOHM. SW151 432-063-7 SW PUSH SPPH221BP011. SW152 430-048-7 SW DIP ROTAR. DIGITALKDR-10. T4 320-905-7 COIL 1FT 21.4MHZ:25KHZ. T5 320-232-2 COIL 455KHZ DETECTOR. TC301 171-501-3 CAPACITOR TRIMMER TSW-3-P-180. TC3 176-014-5 CAPACITOR TRIMMER 6pF:ECR-LA006A52V. TC4 176-014-5 CAPACITOR TRIMMER 6pF:ECR-LA006A52V. TH1 099-303-6

THERMISTOR 30K OHM ±15%:KTD5-330. TH2 098-252-8

THERMISTOR 2.5K OHM ±15%:KTD5-225. TH201 097-103-3

THERMISTOR 10K OHM ±10%:YTD5-310. TH3 097-102-1

THERMISTOR 1K OHM ±15%:KTD5-210. VR2 072-103-1 RESISTOR SEMIFIXED 10KB:RH0621C100138. VR201 480-045-9 TRIMMER POT.METER NRV630HF01 B20K. VR3 450-514-7 VR 20KAV12M4-1(6X5)PVBS(SJ)12R-15. X1 261-394-2 CRYSTAL NC-18C 12.800MHZ(S1-1060-0510). X2 262-052-7 CRYSTAL (NR-18T) 20.945MHZ 15PPM. X401 262-006-6 CRYSTAL HC49/S 11.155200MHZ. XF1 271-002-0 FILTER CRYSTAL 21M 15BU.

SYMBOL PART NO. DESCRIPTION

R156 060-223-3

RESISTOR CHIP 22K OHM 1/10W ±5%.

R157 060-101-6

RESISTOR CHIP 100 OHM 1/10W ±5%.

R158 060-101-6

RESISTOR CHIP 100 OHM 1/10W ±5%.

R201 060-123-6

RESISTOR CHIP 12K OHM 1/10W ±5%.

R202 060-471-0

RESISTOR CHIP 470 OHM 1/10W ±5%.

R203 060-393-3

RESISTOR CHIP 39K OHM 1/10W ±5%.

R204 060-332-8

RESISTOR CHIP 3.3K OHM 1/10W ±5%.

R205 060-272-7

RESISTOR CHIP 2.7K OHM 1/10W ±5%.

R206 060-563-0

RESISTOR CHIP 56K OHM 1/10W ±5%.

R207 060-563-0

RESISTOR CHIP 56K OHM 1/10W ±5%.

R208 060-272-7

RESISTOR CHIP 2.7K OHM 1/10W ±5%.

R209 060-272-7

RESISTOR CHIP 2.7K OHM 1/10W ±5%.

R210 060-223-3

RESISTOR CHIP 22K OHM 1/10W ±5%.

R211 060-223-3

RESISTOR CHIP 22K OHM 1/10W ±5%.

R212 060-153-3

RESISTOR CHIP 15K OHM 1/10W ±5%.

R213 060-223-3

RESISTOR CHIP 22K OHM 1/10W ±5%.

R301 060-100-5

RESISTOR CHIP 10 OHM 1/10W ±5%.

R302 060-562-9

RESISTOR CHIP 5.6K OHM 1/10W ±5%.

R303 060-182-9

RESISTOR CHIP 1.8K OHM 1/10W ±5%.

R304 060-221-1

RESISTOR CHIP 220 OHM 1/10W ±5%.

R305 060-182-9

RESISTOR CHIP 1.8K OHM 1/10W ±5%.

R306 060-221-1

RESISTOR CHIP 220 OHM 1/10W ±5%.

R307 060-123-6

RESISTOR CHIP 12K OHM 1/10W ±5%.

R308 060-220-0

RESISTOR CHIP 22 OHM 1/10W ±5%.

R309 060-182-9

RESISTOR CHIP 1.8K OHM 1/10W ±5%.

R310 060-220-0

RESISTOR CHIP 22 OHM 1/10W ±5%.

R311 060-683-5

RESISTOR CHIP 68K OHM 1/10W ±5%.

R312 060-220-0

RESISTOR CHIP 22 OHM 1/10W ±5%.

R313 060-823-5

RESISTOR CHIP 82K OHM 1/10W ±5%.

R401 060-103-8Z

RESISTOR CHIP 10K OHM 1/10W ±5%.

R402 060-822-4

RESISTOR CHIP 8.2K OHM 1/10W ±5%.

R403 060-682-4

RESISTOR CHIP 6.8K OHM 1/10W ±5%.

R404 060-153-3

RESISTOR CHIP 15K OHM 1/10W ±5%.

R405 060-104-9

RESISTOR CHIP 100K OHM 1/10W ±5%.

R406 060-103-8Z

RESISTOR CHIP 10K OHM 1/10W ±5%.

R407 060-333-9

REISTOR CHIP 33K OHM 1/10W ±5%.

R408 060-203-5

RESISTOR CHIP 20K OHM 1/10W ±5%.

R409 060-184-1

RESISTOR CHIP 180K OHM 1/10W ±5%.

R410 060-222-2

RESISTOR CHIP 2.2K OHM 1/10W ±5%.

R411 060-124-6

RESISTOR CHIP 120K OHM 1/10W ±5%.

R412 060-153-3

RESISTOR CHIP 15K OHM 1/10W ±5%.

R413 060-473-2

RESISTOR CHIP 47K OHM 1/10W ±5%.

R414 060-103-8Z

RESISTOR CHIP 10K OHM 1/10W ±5%.

R415 060-103-8Z

RESISTOR CHIP 10K OHM 1/10W ±5%.

R416 060-222-2

RESISTOR CHIP 2.2K OHM 1/10W ±5%.

R417 060-103-8Z

RESISTOR CHIP 10K OHM 1/10W ±5%.

R418 060-561-8

RESISTOR CHIP 560 OHM 1/10W ±5%.

R419 060-124-6

RESISTOR CHIP 120K OHM 1/10W ±5%.

R420 060-334-0

RESISTOR CHIP 330K OHM 1/10W ±5%.

R421 060-473-2

RESISTOR CHIP 47K OHM 1/10W ±5%.

R422 060-393-3

RESISTOR CHIP 39K OHM 1/10W ±5%.

R423 006-203-5

RESISTOR CHIP 20K OHM 1/10W ±5%.

R424 060-103-8Z

RESISTOR CHIP 10K OHM 1/10W ±5%.

SYMBOL PART NO. DESCRIPTION

R426 060-103-8Z

RESISTOR CHIP 10K OHM 1/10W ±5%.

R427 060-104-9Z

RESISTOR CHIP 100K OHM 1/10W ±5%.

R428 060-103-8Z

RESISTOR CHIP 10K OHM 1/10W ±5%.

R429 060-393-3

RESISTOR CHIP 39K OHM 1/10W ±5%.

R430 060-472-1

RESISTOR CHIP 4.7K OHM 1/10W ±5%.

R431 060-473-2

RESISTOR CHIP 47K OHM 1/10W ±5%.

R432 999-127-4

RESISTOR CHIP 620K OHM 1/10W ±5%.

R433 060-473-2

RESISTOR CHIP 47K OHM 1/10W ±5%.

R434 060-473-2

RESISTOR CHIP 47K OHM 1/10W ±5%.

R435 060-153-3

RESISTOR CHIP 15K OHM 1/10W ±5%.

R436 060-222-2

RESISTOR CHIP 2.2K OHM 1/10W ±5%.

R437 060-222-2

RESISTOR CHIP 2.2K OHM 1/10W ±5%.

R438 060-473-2

RESISTOR CHIP 47K OHM 1/10W ±5%.

R439 060-272-7

RESISTOR CHIP 2.7K OHM 1/10W ±5%.

R440 060-472-1

RESISTOR CHIP 4.7K OHM 1/10W ±5%.

R441 060-222-2

RESISTOR CHIP 2.2K OHM 1/10W ±5%.

R442 060-223-3

RESISTOR CHIP 22K OHM 1/10W ±5%.

R443 060-152-2

RESISTOR CHIP 1.5K OHM 1/10W ±5%.

R444 060-563-0

RESISTOR CHIP 56K OHM 1/10W ±5%.

R445 060-123-6

RESISTOR CHIP 12K OHM 1/10W ±5%.

R446 060-681-3

RESISTOR CHIP 680 OHM 1/10W ±5%.

R447 060-184-1

RESISTOR CHIP 180K OHM 1/10W ±5%.

R448 060-153-3

RESISTOR CHIP 15K OHM 1/10W ±5%.

R449 060-103-8Z

RESISTOR CHIP 10K OHM 1/10W ±5%.

R450 060-153-3

RESISTOR CHIP 15K OHM 1/10W ±5%.

R451 060-103-8Z

RESISTOR CHIP 10K OHM 1/10W ±5%.

R452 060-102-7

RESISTOR CHIP 1K OHM 1/10W ±5%.

R453 060-102-7

RESISTOR CHIP 1K OHM 1/10W ±5%.

R454 060-473-2

RESISTOR CHIP 47K OHM 1/10W ±5%.

R455 060-473-2

RESISTOR CHIP 47K OHM 1/10W ±5%.

R456 060-473-2

RESISTOR CHIP 47K OHM 1/10W ±5%.

R457 060-473-2

RESISTOR CHIP 47K OHM 1/10W ±5%.

R458 060-473-2

RESISTOR CHIP 47K OHM 1/10W ±5%.

R459 060-473-2

RESISTOR CHIP 47K OHM 1/10W ±5%.

R460 060-683-5

RESISTOR CHIP 68K OHM 1/10W ±5%.

R461 161-105-0Z

1M OHM 1/10W ±5%.

R462 002-474-5

RESISTOR CHIP 470K OHM 1/8W ±5%.

R463 060-474-3

RESISTOR CHIP 470K OHM 1/8W ±5%.

R464 060-473-2

RESISTOR CHIP 47K OHM 1/8W ±5%.

R465 060-184-1

RESISTOR CHIP 180K OHM 1/10W ±5%.

R466 060-184-1

RESISTOR CHIP 180K OHM 1/10W ±5%.

R467 060-472-1

RESISTOR CHIP 4.7K OHM 1/10W ±5%.

R468 060-473-2

RESISTOR CHIP 47K OHM 1/8W ±5%

R469 060-103-8Z

RESISTOR CHIP 10K OHM 1/10W ±5%.

R470 060-472-1

RESISTOR CHIP 4.7K OHM 1/10W ±5%.

R471 060-103-8Z

RESISTOR CHIP 10K OHM 1/10W ±5%.

R472 060-223-3

RESISTOR CHIP 22K OHM 1/10W ±5%.

R473 060-105-0Z

RESISTOR CHIP 1M OHM 1/8W ±5%.

R474 060-104-9Z

RESISTOR CHIP 100K OHM 1/10W ±5%.

R475 060-272-7

RESISTOR CHIP 2.7K OHM 1/10W ±5%.

R476 060-123-6

RESISTOR CHIP 12K OHM 1/10W ±5%.

R477 060-682-4

RESISTOR CHIP 6.8K OHM 1/10W ±5%.

R478 060-103-8Z

RESISTOR CHIP 10K OHM 1/10W ±5%.

LBI-38861C

OUTLINE DIAGRAM

MONOGRAM PORTABLE

RF BOARD

406112-D

MONOGRAM PORTABLE

SQUELCH BOARD

4161917B

NOTE: These outline diagrams may not reflect the actual boards in your radio unit. The diagrams are provided only as a guide.

LBI-38861C

OUTLINE DIAGRAM

MONOGRAM PORTABLE VCO BOARD 416914-B

MONOGRAM PORTABLE CONTROL BOARD 406115-H

NOTE: These outline diagrams may not reflect the actual boards in your radio unit. The diagrams are provided only as a guide.

LBI-38861C

OUTLINE DIAGRAM

TOP PANEL

416915-C

NOTE: These outline diagrams may not reflect the actual boards in your radio unit. The diagrams are provided only as a guide.

MONOGRAM PORTABLE

BATTERY TERMINAL

416953-A

LBI-38861C

OUTLINE DIAGRAM

FLEX PCB B 416916-B

PTT TALK 416954-A

FLEX PCB BOARD 4161916-B 416909-C

FLEX PCB A 416909-C

NOTE

These outline diagrams may not reflect the actual boards in your radio unit. The diagrams are provided only as a guide.

LBI-38861C

MECHANICAL PARTS BREAKDOWN

PARTS LIST

*COMPONENTS, ADDED, DELETED OR CHANGED BY PRODUCTION CHANGES

NOTE: When ordering parts for your Monogram radio, pre- cede all parts numbers with the prefix

R29/.

SYMBOL PART NO. DESCRIPTION

B1 611379 Screw Machine (FH) M2.6x10. B2 611380 Screw Machine (FH) M2.5x6. B3 7181528A Bottom Cover. B4 894566 Protector "A" NBR. B5 894567 Protector "B" NBR. B6 959-647BA Label Name AL Foil 34.7x17.8. B7 852991A Post 4.5x8.6 NI-PLT. B8 852950 Post 4.5x13.1 NI-PLT. B9 600727 Screw Machine (PH) #2-56x5. B10 771885 Latch Plate. B11 881476 Spring (Latch). B12 825642 Latch (Batt. Lock). B13 600747 Screw Machine (PH) #2-56x5. B14 906406 Felt 80x20x0.2t PVC. B15 600726 Screw Machine (PH) #2-56-7. BH1 Holder Conductive Spray.

Holder None. Spray. BH2 752-515 Terminal(-) 0.6t NI-PLT. BH3 416953B Batt.PCB. BH4 853042 Bushing SN-PLT. BH5 894550 Cushion Hs50. BH6 881477 Contact (Batt.) NI-PLT. BH7 600725 Screw Machine (PH) #2-56x5. D1 894785 Rubber Cap Sili.Hs50. D2 894787 Rubber Holder Sili.Hz50. D3 406-115H Digital PCB. D4 772013 Shield Plate STPEO.3t. P1 665018 "E" Ring & 1.5 BLK. P2 723670C Bracket SUS304 Spray. P3 752483C Belt Clip Lexan 141-2032. P4 881496 Spring SUS304-WPA. P5 860110 Pin BSBM & 3.5x30 NI-PLT. PT1 PTT Pad SILL. Hs45 BLK (3 BUTT.)

PTT Pad SILL. Hz45 BLK (2 BUTT.) PT2 In-Plate SUS304 0.2t (3 BUTT.)

In-Plate SUS304 0.2t (2 BUTT.) PT3 Te-Plate PVC 0.2t 22x6.5 (3 BUTT.)

Te-Plate PVC 0.2t 22x6.5 (2 BUTT.) PT4 4360300 Tact Switch. PT5 406954A Felx PCB. PT6 772050 Plate PTT SPC 1t NI-PLT. R1 406-112D RF PCB. R2 416909D Flex PCB "B". R3 416916D Flex PCB "A". R4 2030436 Transistor SRFH1900. R5 650047 Nut UNC-NOB-32 Ni Plat. R6 Shield Plate Spte 0.21. R7 894785 Rubber Cap Hs50 Gray. R8 894787 Rubber Holder Sili. R9 416914B SQ PCB. R10 894786 Rubber Cap Hs50 Gray. R11 894786 Rubber Holder Sili.

SYMBOL PART NO. DESCRIPTION

R12 761-705 ABL A5056E. R13 771954A Shield Plate SPTE 0.3t. R14 662410 Washer (Spring) M4 Ni-Plat. T1 702-349B Top Panel ALDC 12 Spray. T2 416915D Interface PCB. T3 4320637 Push SW SPPH221BP011. T4 508159A Stopper Ass’y (10CH).

508130A Stopper Ass’y (16CH). T5 665060 "E" Ring & 2.5 Ni-PLT. T6 2511481 LED Lamp SEF33G2TT. T7 723 535 Holder (ANT) BSBM (1/4’-32). T8 650-985 Washer (ANT) SPTE 0.3t. T9 852761 Bushing (ANT) P.C Clear. T10 771-952 Shield Plate Spte 0.25t. T11 795-596 Overlay (10CH.) ALP 0.5t. T12 617120 Screw Machine (PH) M1.7x4. T13 825646-AA Knob (CH.) AL A5056E BLK. T14 830872 Cap Ne. Rubb. Hs70. T15 450-514-7 Volume 20kav 12m4-1. T16 650345 Nut BSBM M6xP 0.5 & 8.3. T17 830992A Dust Cap Nylon66 BLK. T18 894547 "O" Ring Sili. & 6.6x & 4.8. T19 825647-AA Knob (Cont.) AL A5056E BLK. T20 4216481 Connector HR10A-7R-65B. T21 894549 Gasket Sili. Rubb. BLK Hs40. T22 906381A Insulator PVC 0.3t BLK. T23 600747 Screw Machine (PH) #2-56x5. T24 852765 Ring (ANT MTG) BSBM & 13.8. T25 905481 Washer (ANT) & 8x & 11.5x1t. T26 650344 Nut BSBM M8 x P0.5 & 10. T27 650295 Nut (ANT) BSBM & 10.6 Ni-PLT. T28 416-915D Top Sub PCB. T29 612287 Screw Machine (PH) M2x3 Zn-PLT. T30 723688 Bracket SPTE 0.5t. T31 894544 Key Pad SILL. RUBB. BLK. Hs40. U1 621104 Screw Tapping (FH) 2.6x6-2S. U2 621460 Screw Tapping (PH) M2.6x5-2S. U3 831-121 Bezel Noryl Cone. Spray BLK.

831117A Bezel Noryl None. Spray BLK. U4 723776 Bracket (SPK) SPC 0.8t. U5 850924 Bushing Mic & 7.5x5.5 NBR. U6 593-175 Mic Condenser WM063T. U7 894600 Gasket Sili. Rubb. & 1 BLK. U8 906214A Double Tape 3M930 3x52. U9 906215 Double Tape 3M4930 3x59. U10 906369 Spk. Filter & 33.5x0.15t. U11 4201124 Speaker T036S25A-000. U12 718-154-B Upper Cover AL DC12 Spray. V1 771951 Shield Can BSP 0.4t. V2 906316 Felt 0.5t BLK. Sticker.

UHF MONOGRAM PORTABLE

LBI-38861C

SCHEMATIC DIAGRAM

DIGITAL BOARD 406115-H

LBI-38861C

SCHEMATIC DIAGRAM

RF BOARD

406112-H

LBI-38861C

Ericsson Monogram Series MGP 450, Monogram MGP 450 Maintenance Manual

Specifications and Main Features

Frequently Asked Questions

User Manual