Maxon PM200 service manual

Service Manual PM200/250

SM-PM200/250-01

PM200/250

Service Manual

Service Manual PM200

AMENDMENT RECORD SHEET

All amendments to this manual should be incorporated as soon as they are received and

recorded below:

Issue No. Effective Date Reason for Change Date Signature

All Engineering Bulletins relevant to this product should be placed at the rear of this

binder. Please ensure that this manual is updated with any replacement pages, which

may accompany these Engineering Bulletins.

Always read all Engineering Bulletins before carrying out work on a radio.

Please read the WARNINGS on the next page before referring to subsequent
sections.

Page 2 of 54

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Service Manual PM200

WARNINGS

1. WARNING! NEVER connect the transceiver to an AC outlet. This may pose a fire hazard

or result in an electric shock.

2. NEVER operate the radio transmitter without a suitable artificial load or antenna connected.

3. NEVER connect the transceiver to a power source of more than 16V DC such as a 24V

battery.

4. NEVER cut the DC power cable between the DC Plug and fuse holder. If an incorrect

connection is made after cutting, the transceiver may be damaged.

5. NEVER place the transceiver where normal operation of the vehicle may be hindered or

where it could cause bodily injury.

6. NEVER expose the transceiver to rain, snow or any liquids.

7. NEVER modify a radio or accessory except as instructed in the service manual, engineering

bulletins or formal communication as this may invalidate any warranty, guarantee or type

approval.

8. USE the supplied microphone only. Other microphones have different pin assignments and

may damage the transceiver. (ACC-700, optional DTMF MIC. ACC-703 )

9. DO NOT use or place the transceiver in areas with temperatures below -30

°C, In areas subject to direct sunlight, such as the dashboard.

+60

10. AVOID operating the transceiver without running the vehicle’s engine. The vehicle’s

battery will quickly run out if the transceiver transmits while the vehicle’s engine is OFF.

11. AVOID placing the transceiver in excessively dusty environments.

12. AVOID the use of chemical agents such as benzene or alcohol when cleaning, as they

damage the transceiver surfaces.

13. BE CAREFUL! The transceiver will become hot when operating continuously for long

°C or above

periods.

14. DO NOT operate this equipment in environments containing explosive materials or

vapours.

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Service Manual PM200

Contents

Amendments ....................................................... 2

Warnings ............................................................. 3

Introduction.......................................................... 6

Using this Manual.........................................................................................6

Amendments to this Manual........................................................................6

Specification ........................................................ 8

General ..........................................................................................................8

Transmitter....................................................................................................10

Receiver.........................................................................................................12

Maintenance and repair..................................... 14

Introduction...................................................................................................14

Test Equipment Connection........................................................................16

Microphone and PTT Connections .............................................................16

Transmitter Performance Tests...................................................................17

Receiver Performance Tests .......................................................................18

Alignment ......................................................................................................20

Disassembly and Re-assembly of the Radio................................21

PLL Alignment.................................................................................21

Transmitter TCXO Alignment.........................................................22

Receiver Alignment ........................................................................22

Receiver Performance Tests..........................................................23

Detailed functional description .......................... 25

UHF Transmit ................................................................................................25

UHF Receive..................................................................................................27

Control Details ..............................................................................................28

Troubleshooting................................................. 29

Diagnostic Function ....................................................................................29

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Service Manual PM200

ASIC ................................................................. 30

ASIC Control ................................................................................................30

APC (Automatic Power Control) ....................... 35

Schematics and PCB layout Index.................... 37

Main Control Schematic
TX RF Schematic
RX RF Schematic
VCO Schematic
Front Panel Schematic
Main PCB Layouts
Front Panel PCB Layouts
Main PCB Silk Ref
Front Panel Silk Ref
RF RX Block Diagram

Parts List............................................................ 38

Mechanical Exploded View..........................................................................38

Parts List .......................................................................................................39

Contact Details .................................................. 54

Note:

Although this manual is a generic manual for PM200 and PM250 there

are a number of differences between PM200 and PM250. A separate

appendix has been written which includes the drawings and part list for

the PM250. Please be aware that all drawings and parts are only

relevant to the PM200. All features and functions are relevant to both

models. The PM250 appendix can be downloaded from the MaxonCIC

website

Page 5 of 54

http://www.maxoncic.co.uk/

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Service Manual PM200

Introduction

This Maxon Service Manual is a comprehensive guide for the maintenance and field repair

of this equipment. It covers all versions of the PM-200/250 radio. Before using this manual

please read the whole of this introductory chapter, this will help you to make the best use

of it. If you have not done so already, please also read the warnings immediately in front of

this chapter before proceeding any further.

Using this Manual

The organization of this manual has been made to access the location and referencing of

information, as quickly as possible.

Section 3 - Installation, Commissioning & Alignment. This describes connections to the

radio, how to commission it and how to align the radio should this become necessary.

Section 4 - Detailed Functional Description.

Section 5 - Troubleshooting..

Amendments to this Manual

From time to time during its lifetime, this product will be changed and improved. To cover

such changes, amendments to this manual will be issued in the form of replacement

and/or additional pages. It is important that anyone working on a product has all the

relevant information. Therefore you should incorporate amendments to this manual on

receipt. Please follow the instructions accompanying the amendment (in the form of an

Engineering Bulletin) and be sure to complete the amendment record at the front of this

manual.

On occasion it may be necessary to issue product information more quickly than can be

achieved with an amendment. In this case the information will be distributed as a Maxon

Engineering Bulletin. Engineering Bulletin numbers are prefixed with a category letter – A,

B or C.

E.g. CATEGORY C – ENGINEERING BULLETIN 120

Category C describes how Maxon recommends an improvement and/or a modification to
make an improvement to a product

Engineering Bulletin 120 index number allocated to this bulletin.

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Service Manual PM200

‘A’ Category A Engineering Bulletins will only be released if, by using the equipment

manufactured by Maxon or its subcontractors, a risk to operator safety or an infringement

of Type Approval is probable.

All units affected should be returned for modification to Maxon CIC Europe Works

Department on receipt of such a Bulletin.

‘B’ Category B Engineering Bulletins are for equipment manufactured by Maxon CIC

that may have component batch problems.

All equipment affected that is in service is to be returned to the Distributor or Dealer

workshop for modification. Maxon CIC will supply replacement components free of charge.

‘C’ Category C Engineering Bulletins are for improvement or modification to equipment

manufactured by Maxon.

Dealer/Distributor to modify affected units in the field on the next service call. Maxon will

supply components free of charge.

Please place these at the back of this manual and refer to them before carrying out any

work. This Service Manual should be updated with any accompanying replacement pages.

You may wish to retain the previous issue pages for future reference.

Page 7 of 54

Service Manual PM200

Specification

General

Performance Specifications R&TTE Directive 1999/5/EC

ETSI EN 300 086-1/-2; ETSI EN 300113-2

EMC Directive 89/336/EEC

ETSI EN 301 489-1/-5

LV Directive 73/23/EEC EN 60950-1

72/245 EC as assembled by 2004/104/EC

Frequency coverage (UHF) 440.000 – 480.000MHz

(VHF) 146.000 – 174.000MHz

Channel Spacing 12.5 kHz, / 25 kHz

(12.5 / 25 kHz switchable by CPU control)

RF Output Power PM200 2W - 25W nominal (+/-20%)

RF Output Power PM250 5W - 45W nominal (+/-20%)

Modulation Type F3E/G3E

Audio Power 4W (Internal 16 Ω speaker)

Intermediate Frequencies 45.1MHz First I.F.

455 kHz Second I.F.

Number of Channels 208 Channels

Frequency Source PLL Synthesiser

Frequency Stability +/- 2.5ppm

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Service Manual PM200

Power Supply 13.8Vdc nominal

10.8Vdc minimum (extreme)

15.6Vdc maximum (extreme)

Current Consumption OFF <10µA

Standby (muted)<140mA

Unmuted with 25% AF power <350mA

Unmuted with 50% AF power <450mA

Unmuted with 100% AF power <1000mA

Transmit @ 2W RF output <2.0A

Transmit @ 25W RF output <7.0A

Environmental

Temperature Range

Operating -15 to +35°C (nominal)

-20 to +55°C (extreme),

Humidity EIA/TIA 603 (95%)

ESD 20kV (C-MIC = 15kV)

EMC EMC Directive 89/336/EEC May 89

ETS 301 489-1/-5

Physical Dimensions 161.8(W) mm x 168.8(D) mm x 44(H) mm

Weight 1.46kgs

Programmer PM200 PC Programmer

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Service Manual PM200

Transmitter

Test Method is ETS 300.086 2001 unless stated. Performance without Sub-Audio

Modulation.

PM200 Power Output

High Power 25W nominal adjusted

Low Power 2W nominal adjusted

PM250 Power Output

High Power 45W nominal adjusted

Low Power 5W nominal adjusted

Audio Freq. Deviation

Nominal Peak

12.5 kHz +/-1.5 kHz +/-2.5 kHz

25 kHz +/-3.0 kHz +/-5.0 kHz

With or without audio sub-modulation (10% peak deviation)

Audio Characteristic

(Method as FTZ17 TR 2049 July 1988)

Modulation Type F3

Within +1/-3dB of limit wrt 1 kHz:

300Hz to 2.55 kHz for 12.5kHz channel spacing

300Hz to 3.0 kHz for 20 / 25kHz channel spacing

TX Spurious Emission (conducted and radiated)

Below 1GHz Better than –36dBm

1 – 4GHz Better than –30dBm

MIC Sensitivity

At Accessory/Mic connector 12mV +/- 3.5mV

Values for 60% peak dev.

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Service Manual PM200

Transmitter Audio Distortion (Without CTCSS)

1 kHz < 5% (nominal)

Transmitter Audio Distortion (With CTCSS)

1 kHz < 8% (nominal)

Audio frequency = 1 kHz, with any CTCSS freq. combined.

Hum and Noise (Residual Modulation)

Method as FTZ 17 TR 2049 July 1988

Better than 40dB (with PSOPH)

Sub Audio Tones - CTCSS

Tone Range 67 to 250.3Hz @ 0.3% accuracy

Tone Standard RS-220A EIA

Nominal Tone 10% (8-15%) Pk Sys Dev.

Sub Audio Tones - DCS

Tone Standard Normal and Inverted

Tone Deviation 10% (3%) Pk System Dev. (UK)

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Service Manual PM200

Receiver

Test Method is ETS 300.086 2001 unless stated. Performance without Sub-Audio

Modulation

Sensitivity

12dB SINAD (nominal) UHF: Better than –117dBm

Amplitude Characteristic Within +/- 3dB

Co-channel Rejection

12.5 kHz From 0dB to –12dB

25 kHz From 0dB to –8dB

Adjacent Channel Selectivity

Nominal

12.5 kHz Better than 60dB

25 kHz Better than 70dB

Spurious Response Rejection

Better than 70dB (100 kHz – 4GHz)

Intermediation Response Rejection

+/- 25 / 50 kHz Better than 65dB

+/- 50 / 100 kHz Better than 65dB

Blocking >85dB

(+/-1MHz, +/-5MHz, +/-10MHz)

Rx Spurious Emissions (radiated) - nominal

9 kHz – 1GHz Better than –57dBm

1GHz – 4GHz Better than –47dBm

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Service Manual PM200

AF Power 4W max. (Internal 16Ω speaker)

AF Distortion – Method as FTZ 17 TR 2049

1 kHz < 5% (nominal)

RX Hum and Noise

Method as TIA / EIA-603

12.5 kHz <40dB No PSOPH

25 kHz <40dB No PSOPH

Sub Audio Tones - CTCSS

Tone Range 67 to 250.3Hz @ 0.3% accuracy

Tone Standard ETSI 300.219

Decode Sensitivity

Method (Decrease Signal Level, @ 10% peak dev. with no audio tone)

All Tones <=9dB SINAD

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Service Manual PM200

Maintenance and repair

Introduction

This section covers the tests which should be undertaken prior to customer handover.

All of the following tests can be carried out without having to gain access to the interior of

the radio.

Recommended Test Equipment

The alignment and performance test procedures assume the use of the following

equipment. The functions of most of the equipment may be found in a “Communications

Test Set”. This type of equipment is available from a number of test equipment

manufacturers.

Throughout this book, reference will be made to the use of the Communications Test Set.

Where applicable, the equivalent discrete item of test equipment may be used. For

example, if measuring power, a stand-alone power meter and a dummy load could be

used instead of the Test Set

Discrete Test Equipment

RF Signal Generator

RF Power Meter

RF Frequency Counter

Spectrum Analyser and notch filter
(optional)

Audio Signal Generator

Audio Power Meter

SINAD Meter

Modulation Meter

Oscilloscope

Voltmeter

DC Power Supply, 0 - 15V 10A min.

Use fig.1 as a suggested connection diagram to connect up the recommended

Note:

discrete test equipment.

Page 14 of 54

Combined Equipment

Communications Test Set (e.g. HP
8920B, Stabilock 4040 or similar).

Accessories

PM200 Microphone.

ACC - 2006

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Service Manual PM200

Test Equipment Configuration

(Fig. 1)

Prerequisites

For the following tests, signal generator modulation level should be set to Average
System Deviation, i.e. 60% of maximum system deviation.

The level should therefore be set to:

1.5 kHz for 12.5 kHz channel spacing

3.0 kHz for 25 kHz channel spacing

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Service Manual PM200

EEPROM programming

Ensure that the EEPROM has the required customer parameters programmed, otherwise
ensure that a test EEPROM is programmed with at least the lowest, middle and highest
RX/TX frequencies prior to aligning the UHF scanning mobile radio.

Test Equipment Connection

Test equipment connections for performance and Alignment tests are shown in figure 1.

Connect the power supply leads as follows:

1. Ensure the power supply is switched off.

2. Positive lead of the power supply to the red wire terminal tag of the 13.8V D.C.

connector.

3. Negative lead of the power supply to the black wire terminal tag of the 13.8V D.C.

connector.

Microphone and PTT connections.

The microphone and PTT connections are via the 6 pin socket on the front panel. The

specification for the connector is shown in figure 2. RX audio can be monitored at the

3.5mm jack on the rear panel.

Connect

pin outs

1 Data In/out

2 GND
3 N/F
4 HOOK IN
5 MIC_HI_INPUT
6 PTT_INPUT

7 +8V
8 BUSY_I/O

(Fig. 2)

Page 16 of 54

Function

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Service Manual PM200

Transmitter Performance Tests

Power Output

a) Connect the transmitter to the Communications Test Set (CTS) with the power meter

set to read 25W for the PM200.

b) Set the power supply to 13.8Vdc and connect a dc voltmeter across the power supply

to monitor the supply voltage.

c) Set the CTS to the same frequency as the radio and then set the PTT to start

transmitting. Check and record the power output. The nominal power output is 2W for

low power and 25W for high power.

d) Reduce the power supply voltage to 11Vdc and then set the PTT to start transmitting.

The output power should be greater than 65% of the level measured above.

Frequency Error

a) Using the frequency counter check that the transmit frequency is within +/- 750Hz of

the frequency which is programmed into the radio.

Distortion and Deviation Measurements

a) Set the radio to the middle TX frequency. Connect the oscilloscope to the AF output of

the modulation meter.

b) Set the audio signal generator to 1 kHz tone, low output impedance and adjusts its

level for 60% system deviation:

12.5 kHz channel spacing 1.5kHz dev.

25 kHz channel spacing 3kHz dev.

c) Press and hold the PTT button.

d) Measure the audio distortion. This should be less than 5%.

e) Increase the audio signal generator level by 20dB (10x voltage). The peak deviation

should be:

12.5 kHz channel spacing <= 2.2 kHz dev.

25 kHz channel spacing <= 4.3 kHz dev.

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Service Manual PM200

f) Release PTT.

When CTCSS and DCS performance checks are also required, ensure that the lowest,

middle and highest RX/TX frequencies include: (see below for suggested test channel

set-up).

Lowest RX/TX freq. ch. 67.0 Hz CTCSS

Middle RX/TX freq. ch DCS Code 072

Highest RX/TX freq. ch 250.3 Hz CTCSS

The middle RX/TX frequencies should be halfway between the lowest and the highest

frequencies.

Receiver Performance Tests

Sensitivity

Set the radio to the correct channel.

SINAD performance test is used to test the sensitivity of the radio receiver.

Select the required frequency to be measured (without CTCSS enabled)

a) Connect the RF signal generator, modulated with a 1 kHz tone, to the radio.

b) Set the frequency of the RF signal generator, to correspond with to the RX frequency

of selected channel

c) Connect the SINAD voltmeter to the external speaker socket on the radio. Ensure that

the radio has been programmed to path the audio to the external accessory socket.

d) If signal is not present press the monitor button. Set the volume control to mid-range.

e) Set the RF signal generator deviation to:

12.5 kHz channel spacing 1.5 kHz dev.

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25 kHz channel spacing 3 kHz dev.

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

g) Check that the signal generator

Page 18 of 54

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Service Manual PM200

RF level is < -117dBm (0.31μVpd).

Squelch

a) Ensure that both the radio and the signal generator are set to the appropriate channel

spacing.

b) With the above setting, reduce the RF level to –130dBm (speaker should be muted).

Adjust the RF output level until the radio unmutes. Sinad reading should be in the range

of 8db to 12db.

Audio Output

a) Set the RF signal generator to 1mV Pd (-47.0dBm) and the tone and deviation as

above.

b) Connect the audio power meter set to16Ω to the external speaker socket on the radio.

Program audio to external socket i.e. Audio test enable.

Note: The audio power meter should be set to 16Ω.

c) Adjust the volume control on the radio under test to maximum (Volume Level 8).

The voltmeter should indicate >= 5V.

The audio power meter should read >= 6.25W.

This concludes the Performance Tests.

If the Radio should fail any of these tests it will be necessary to turn to the next section
on Alignment.

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Service Manual PM200

Alignment

WARNINGS

Any repairs or adjustments should only be made by, or under the supervision of a

qualified radio-telephone service technician.

CAUTION

This radio contains static sensitive devices. Static safe precautions should be

observed; in particular we would recommend the use of a suitable floor mat, table

mat, bonding cords and a wrist strap. The soldering iron should have an earthed

tip.

Care should be exercised in the handling of static sensitive components and they

should always be transported in the correct containers.

Never remove, or insert, static sensitive devices with the power applied.

Alignment Section Frequency Table

Note: The Above frequency Table should be used whenever the alignment section refers

to a channel Number.

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Service Manual PM200

Disassembly and Re-assembly of the Radio

In order to carry out the following Test and Alignment procedures it will be necessary to

gain access to the inside of the radio.

Care should be exercised when opening up the radio for maintenance or repair.

Removing and replacing the main cover

a) Turn the radio over, so that the radio is upside down.

b) Remove the four holding screws.

c) Lift the cover off.

d) Replace the main cover by reversing the above procedure.

Removing and replacing the front panel

a) Firstly, remove the main cover, as described above.

b) Remove the two black screws on the sides, which hold the front panel to the base of

the radio.

c) Turn the radio the normal way up and remove the front panel.

d) Replace the front panel by reversing the procedure.

PLL Alignment

RX VCO

a) Select Channel 1.

b) Check that the VCO tuning voltage at TP1 (Please see fig.3) is >1.3V

c) Select Channel 3

d) Check that the voltage at TP1 is <9V

e) If the voltage is >9V it will be necessary to adjust RX coil, (see drawing below),

reducing the voltage set in b nearer to 1.3V.

TX VCO

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a) Select Channel 1.

b) Set the PTT switch to on. Check that the VCO tuning voltage at TP1 is >1.5V.

c) Set the PTT switch to off. Select Channel 3.

d) Set the PTT switch to on and check that the voltage at TP1 is <10V.

e) If the voltage is >10V it will be necessary to adjust TX coil, (see Fig.3 below) reducing

the voltage set previously in b) nearer to 1.5V.

f) Set the PTT switch to off.

RX Adjust

VCO

Transmitter TCXO Alignment

TCXO

a) Select Channel 2.

b) Set the PTT switch to on.

c) Using the frequency counter, adjust the TCXO, so that the transmit frequency is within

+/- 300Hz of the required frequency.

d) Set the PTT switch to off.

If no further alignment is to be carried out, it may be necessary to reset the squelch.

Receiver Alignment

The receiver is, by design, a broadband device. It should require no special alignment

unless repairs are performed on the receiver.

The following alignment may be performed:

TX Adjust

(Fig.3)

TP1

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Service Manual PM200

a) Select Channel 2 on the radio.

b) Set the RF generator to the receiver frequency and the RF level to 1mV Pd (-47dBm).

c) Set the AF signal to 1 kHz.

d) Set the deviation to:

12.5 kHz channel spacing 1.5 kHz deviation

25 kHz channel spacing 3 kHz deviation

e) Monitor the audio output level and the distortion, setting the volume control to mid-

range. (Volume level 5)

Squelch

a) Connect the RF signal generator to the radio.

b) Set the RF signal generator to the receive frequency of the current channel two.

c) Connect the SINAD meter to the speaker socket on the rear panel.

d) Set the volume control to mid-range.

e) Set the deviation to:

12.5 kHz channel spacing 1.5 kHz

25 kHz channel spacing 3 kHz

f) Set the AF generator to 1 kHz.

g) With the above setting, reduce the RF level to –130dBm. The radio should be mute.

h) Adjust the RF level until the radio ummutes. SINAD meter reads 8dB to 12dB. The

radio should unmute. If radio does not unmute adjust RV2 for 12.5 kHz channel spacing

and RV3 for 25 kHz channel spacing.

This completes the receiver alignment process.

Receiver Performance Tests

SINAD or noise quieting sensitivity performance tests may be used to test the sensitivity

of the receiver. Both tests are given below.

12dB SINAD Sensitivity

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The SINAD performance test may be used to test the sensitivity of the receiver.

a) Connect the RF signal generator, modulated with a 1 kHz tone, to the radio.

b) Set the frequency to correspond to the Rx frequency of the radio.

c) Using the Audio breakout Box, connect to the SINAD voltmeter to the external speaker

socket on the radio.

d) Press the monitor if radio is muted button and set the volume control to mid-range.

e) Set the RF signal generator deviation to:

12.5 kHz channel spacing 1.5kHz dev.

25 kHz channel spacing 3kHz dev.

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

g) Check that the signal generator RF level is < -117dBm (UHF).

Squelch sensitivity

The RF input level to open the squelch is usually set in the range -123.5 dBm to -

117dBm (0.15 to 0.3mV). The squelch should open with SINAD set between 8dB and

14dB (no CCITT).

The squelch should close between 2dB and 4dB below the value at which it opens.

Note: Please refer to frequency table (page 20) whenever a channel number is

referred to.

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Detailed functional description

UHF Transmit

The transmitter is comprised of:

 Microphone audio

 Frequency synthesiser

 Power amplifier and harmonic filter

 Automatic power control

Microphone Audio Circuit

Microphone audio is fed through the front panel PCB onto the main PCB, where it is

amplified, limited the inside parts of the CMX881 and pre-emphasised before being

applied to the VCO and TCXO (via pin 2 on TCXO module).

Frequency synthesiser circuit

With data received from the EEPROM (U6) the frequency synthesiser circuit controls and

produces the RF carrier frequency for the transmitter during transmit and the local

oscillator frequency for the receiver. The frequency synthesiser circuit is comprised of:

 RX/TX Voltage Controlled Oscillator (VCO)

 Charge Pump and Loop Filter

 Dual Modulus Prescaler

Voltage Controlled Oscillator

Contains two VCOs. One for producing carrier frequencies during transmit and one for

producing the local oscillator frequency during receive. The module also has RX and TX

power line filters.

RX/TX VCO

The VCO consist of an RX VCO and a TX VCO. It is switched RX/TX by the power

source.It is connected to the buffer as a cascade bias in order to save power. The

varicap diode D201, D202, D301 are low-resistance elements and produce a change in

frequency With a change in reverse bias voltage(1.2~10v) .L203,L303 are resonant coils,

which change the control voltage by the tuning core. D201modulation diode modulates

the audio signal.

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Charge Pump and Loop Filter

Transistors Q903 to Q904 and associated resistors and capacitors form the charge pump

and loop filter. The phase detector output from U1 pins 7 and 8 are combined by the

charge pump to produce a 0 – 15 tuning volt signal. The signal is filtered by the loop

filter to remove any residual reference frequency harmonics from the signal. After

filtering, the signal is applied to the voltage controlled oscillator module.

Dual Modulus Prescaler

The prescaler divides the VCO frequency by 64 or 65.

Power Amplifier and Harmonic Filter

The power amplifier contains transistors Q12, Q13, Q34, Q39, Q41, Q28 and associated

inductors, capacitors and resistors. When the radio is in transmit mode the diode D1 is

forward biased enabling the modulated RF signal from the VCO (amplified by the first

stage amplifier / buffer Q12 and Q13) to pass to the pre-driver Q34 via Q41. The output

signal is passed from Q39 to Q28 where it is then amplified for transmission. The

amplified RF signal is passed through strip-line coupler and is fed to the harmonic low

pass filter, comprising L21, L22, L25, C96, C98, C99, C100, C109, C110 and then to the

antenna connector (ANT). The strip-line coupler provides a sample of the RF signal for

the automatic power control. During transmit D1 is forward biased which connects the

power amp to the antenna. D2, D3 are forward biased inhibiting transmit signal power

from being fed to the receiver circuitry.

Automatic Power Control

The automatic power control contains the strip-line coupler, diodes D30, D13, resistors

and U11. In transmit mode a reference level is supplied to the differential amplifier U11,

and compared with the DC voltage fed back from the coupler, the output of U2 then

drives the PA module through Q34 and Q41, which determines the final output power.

The U7 D-A converter sets high or low power depending on the APC Program.

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Service Manual PM200

UHF Receive

The receiver is comprised of:

 Front End Filter / RF amplifier

 First mixer and first IF amplifier

 Second mixer, second IF amplifier and FM detector

 Receiver audio circuit(CMX881)

 Mute (Squelch) circuit

RF amplifier

The receiver Front End module contains two stages of filtering and an amplifier, Q601.

The module filters out the unwanted frequencies and provides a gain of typically 12dB for

the wanted frequencies. The wanted RF signal at the operating frequency is passed to

the first mixer.

The signal received from the antenna is routed through the 7th order Chebyshev low-

pass filters contained C601, C603, C604, CL603, C605, C608 and L601, L602, L604 and

passed through Front End Module (RF amplifier) via pin 1. The front-end module

contains D602 to Q601, the front end module is configured to enable the RF signal at the

operating frequency to pass to the first mixer.

First Mixer and First IF Amplifier

The VCO local oscillator signal routed through buffer transistors Q2 is filtered by C14,

C15, C16, L2, L4 and D4 produces a difference frequency IF of 45.1MHz from output of

front end module and the filtered VCO local oscillator signal at pin 2. The 45.1MHz

difference frequency is filtered by the 2-pole crystal filter FL4,5. The tuned circuit T1 and

T2 and associated components provide matching of the crystal filter to ensure good

pass-band response and selectivity. The IF signal is amplified by Q3 and passed to the

second mixer, second IF and FM detector U2.

Second Mixer, Second IF, FM Detector

U2 is a single conversion FM receiver integrated chip and contains the second mixer,

second IF amplifier and FM detector. The second local oscillator frequency is

determined by the crystal Y6 connected to pin 1 of U2. The first IF signal is received at

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Service Manual PM200

pin 16 of U2 and applied to the mixer. The output of the second mixer, a frequency of

455kHz, is the difference between the IF signal and the second local oscillator. The

455kHz passes via pin 5 and is applied to a 455kHz bandpass filter, FL2, (20/25kHz

channel spacing) or FL3 (12.5kHz channel spacing). The selection of the filters is

accomplished by diodes D11 (input) and D12 (output) whose bias is controlled by

software and applied to the diodes from pin 100 of the microprocessor (U18). The output

of FL2/FL3 is passed via pin 11 to a high gain amplifier coupled to the adjustable

quadrature detector Y1 (pin 10). Any detected signal is produced at pin 91 of U18 and

applied to the Receiver Audio Circuit and the Mute (Squelch) circuit.

Receiver Audio and Sub-audio Circuit

The receiver audio circuit has been fully controlled by Baseband Process, CMX881

supported by CML using internal firmware program.

Frequency and CTCSS/DCS data storage

Control Details

EEPROM

RX/TX channels, CTCSS/DCS as well as other data from the programmer are stored in

the EEPROM. The data stored is retained without power supplied. This is a non-volatile

memory. The EEPROM may have information re-programmed or erased. U6 is an

EEPROM with 32Kbite capacity and data is written and read serially.

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Troubleshooting

Obvious checks, such as battery performance on load, should be made before pulling the

radio apart. The use of a power supply isolates this cause.

The alignment procedures, given in Section 5, list how standard tests such as SINAD

measurements can be made. These can be used to check the performance of the

receiver.

Diagnostic Function

The diagnostic function is designed to inform the user about the operational status of the

radio.

The possible audible and visual warnings are:

Status Description LED Colour Audible Tone

Normal Power On Ready N/A Melody
Busy Amber N/A
Correct S.A. Tone Green N/A
Transmit Red N/A
Scan Flashing Green N/A
Busy Lock Flashing Yellow Single Tone
PC Program Write

Reading

Warning Time-Out Timer N/A Single Tone
Error EEprom Flashing Red Repeating Single

Tone
PLL Error Flashing Red Repeating Dual Tone
Filtering Circuit Error Flashing Red Repeating Triple

Tone

(Fig.4)

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ASIC

ASIC Control

Key Assign:

Programmable Key P3 (long Press) assigned to the ASIC Control using the PC

Programmer. When the PM200 has finished programming remove lead, switch off and on

again. Long press of the P3 key will access the ASIC mode.

(Fig.5)

The Asic is used the make adjustments to the following parameters:

Balance Deviation CTCSS Balance Mic gain Peak Deviation CTCSS Deviation

Key Display Parameter

P1 Mod-1 Balance Deviation

P2 Mod-2 CTCSS Balance

P3 Gain- Mic Gain

Down ▼ TX ------ Peak Deviation

Emergency rGain- CTCSS Deviation

(Fig.6)

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TRANSMITTER Control

Mod1 Control

Press P1 Key for tuning Mod1.

This is used for TX audio tone gain by attenuator.

Default value is 1. (N/S band)

Mod2 Control

Press P2 Key for tuning Mod2.

This is the same as tuning TX audio deviation gain by attenuator.

Default value is 1. (N/S band)

INPUT Gain Control

Press P3 Key for tuning TX Input Gain.

This is used for TX modulation gain.

Default value is 2 (S band) or 0 (N band).

TX LIMIT Control

TX LIMIT: Press Down key for tuning TX limit.

This is used for TX audio deviation.

It is possible tune PEAK FM Deviation at Mic deviation 20dB up.

Default value is 3100 (S band) or 1600 (N band).

TONE Deviation

It is possible tune PEAK FM Tone Deviation by pressing Emergency key at the channel

set.

CTCSS:

The higher the numeric value the more the deviation will increase.

Default value is 58200 (S band) or 57800 (N band).

DCS:

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It is possible to tune PEAK FM Tone Deviation by pressing

Emergency key at the channel set DCS.

The higher the numeric value the more the deviation will increase.

Default value is 58045 (S band) or 57645 (N band).

Note: Please refer to frequency table (page 20) whenever a channel number is referred

to.

Receiver Audio Adjustment

Note: this option can only be used on a channel without CTCSS or DCS.

It is possible to tune the RX Audio output gain by pressing emergency key on a

channel that is without signaling. The higher the numeric value the more the

external and internal audio will increase.

Default value is 58200 (S band) 57745 (N band)

Set the unit to the mid-frequency range of S Band. Activate PTT and adjust RV5 for

desired 3 KHz deviation at MIC sensitivity around 11.5mV.

Increase the signal level to 20dB from standard level

Adjust RV4 the TX data with 400Hz standard audio level.

Select Channel 11, and increase the signal level to 20dB from standard level

Activate PTT and confirm less than 5 KHz deviation.

Set the unit without Modulation and adjust ASIC control as below.

If the modulation is >1 KHz

It will be necessary to adjust DCS ASIC control lower than 58045

If the modulation is <1 KHz of 0.5 and more than 5 KHz deviation.

It will be necessary to adjust TX LIMIT control lower than 3100.

Select Channel 17, and increase the signal level to 20dB form standard level

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it will be necessary to repeat parameter n to o,

Activate PTT and confirm less than 2.5 KHz deviation

If the modulation is >0.5 KHz

It will be necessary to adjust DCS ASIC control lower than 57645

If the modulation is <1 KHz of 0.5 and more than 5 KHz deviation.

It will be necessary to adjust TX LIMIT control lower than 1600.

Measure the audio distortion. This should be less than 5%

Release PTT.

Increase the audio signal generator level by 20dB (10 x voltage). The peak deviation

should be:

12.5 kHz channel spacing <= 2.0 kHz dev.

25 kHz channel spacing <= 4.2 kHz dev.

If the modulation is >4.21 KHz it will be necessary to repeat parameters as above.

Measure the audio distortion. This should be less than 5%.

Normal setting (Fig.7)

P1 P2 P3 EMG Down Up

Without tone CH Mod1 Mod2 Gain RX Gain Limiter Save

CTCSS CH Mod1 Mod2 Gain Tone align Limiter Save

DCS CH Mod1 Mod2 Gain Tone align Limiter Save

S Band setting default value (Fig.8)

P1 P2 P3 EMG Down Up

Without tone CH 1 1 2 6 3100 Save

CTCSS CH 1 1 2 58200 3100 Save

DCS CH 1 1 2 58045 3100 Save

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N Band setting default value (Fig.9)

P1 P2 P3 EMG Down Up

Without tone CH 1 1 2 6 1600 Save

CTCSS CH 1 1 2 57800 1600 Save

DCS CH 1 1 2 57645 1600 Save

Asic control sequence (Fig.10)

tone(CTCSS) Tone(DCS) Gain Limiter

57645 57545 0 1200 3100

57745 57645 1 1400 3200

57800 57745 2 1600 3300

57945 57800 3 1800 3500

58045 57945 4 1900 3800

58145 58045 5 2200 4000

58200 58145 6 2500

58300 58200 7 2800

58400 58300 3000

If you want to raise deviation, amend to the higher number.

If you want deviation to be lower, amend to lower number.

DCS S Band 58200 (58045)

N Band 57745 (57645)

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APC (Automatic Power Control)

Installation of APC software

The APC (Automatic Gain Control) is used to adjust the RF power output via a PC.

Click on the setup.exe file and follow on screen instructions

APC Set-up

PC PM200/250 programming lead PM200

(Fig.11)

APC Test Program

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1.) Open APC programmer

2.) Select the Port and the Baud Rate (Baud Rate default 19200bps)

Press save button, to save port and baud rate Settings.

3.) Connect programming lead to PC and radio, switch radio on.

4.) Press the “Read information Of Radio” button, the radio will download the AD value.

5.) The AD value is split into four frequency bands; any changes to the AD value will

affect all power values for that frequency band

Frequency Bands

440 – 450

450 – 460

460 – 470

470 – 480

(Fig.13)

6) The AD value range is in hexadecimal, therefore the higher the value the higher the

power out-put. The highest value is ff, the lowest value is 100.

7.) Select the required channel using the UP channel button on the APC AD value

change section.

8.) To change the AD value the radio must be in TX mode i.e. actually transmitting, using

the ▼ button until the required value is set. To do this correctly it is advised to transmit

into either a power meter with a 50Ω load or a communications test-set.

9.) Once the value is set stop TX and press the ▲ button to exit and value is

automatically saved.

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Service Manual PM200

Schematics and PCB layout Index

This section contains PCB layouts pertaining to the PM200 Radio. Associated Main

Schematics may be found in the wallet at the rear of this binder.

Order of

drawings

Schematics

1 Digital Schematic A4 + A1

2 RF TX Schematic UHF and VHF A4 + A1

3 RF RX Schematic UHF and VHF A4 + A1

4 VCO Schematic UHF and VHF A4

5 Control Header Schematic UHF and VHF A4

Layouts

6 Main Board Layout Top UHF and VHF A4

7 Main Board Layout Bottom UHF and VHF A4

Drawing description Size of drawing

8 Front Panel Layout top UHF and VHF A4

9 Front Panel Layout Bottom UHF and VHF A4

Silk Screen

Layouts

10 Main Board Top Silk Screen UHF and VHF A4

11 Main Board Bottom Silk Screen UHF and VHF A4

12 Front Panel top Silk Screen UHF and VHF A4

13 Front Panel Bottom Silk Screen UHF and VHF A4

Block Diagram

14 RF RX Block Diagram UHF and VHF A3

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Parts List

The following pages detail the mechanical and electronic parts for the Maxon PM200

Mobile Radio. Refer to Exploded diagram for the PM200.

Mechanical Exploded View

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Service Manual PM200

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Service Manual PM200

Parts List

PART NO. NAME & DESCRIPTION Q’ty REFERENCE-

NO

CHASSIS ASS'Y

M2X5 (+)PH ZN 2

612289 2X5 BLK (+)MACHIN 1

613323 3X8 NI-PLAT 3

613580 3X6 NI-PLAT 12

613670 M3X22 (+)BH NI 4

71A356 ALDC 12 UPPER COV 1

71A367 ALDC 12 BOTTOM CO 1

752972 PBS 0.3T ANT TERMI 1

752973 PBS 0.3T POWER TER 1

752977 PBS 0.3T POWER PLA 1

772745 NSP 0.3T SHIELD CA 1

895247 NEOPRENE RUBBER 1

896007 NBR CAP RUBBE 1

896493 SILICON RUBBER T1.0 1

FRONT PANEL ASSEMBLY

2512864Z L-115 VEGWLAMP LED 1 DS4

2523203 KLS-020MSYLED DISPL 1 DS3

2523292 ISO9238P LCD DISPL 1 DS5

4201280 16 OHM 6 W PB-06401 1 SP1

4208017 8PIN TOP ENTRY TYPE 1 J1

4217334 ZW-12-10-G-D-400-10 1 J6

4222675 8283-0211:2MM PITCH 1 J2

4300951 RK0971111ZOP 1 S7

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504671 2P 85MM 2P HOUSIN SPK wire 1

4360685 SKHWALA010TACK SWIT 1 S6

4360696 1194 YELLOW 5 S1.2.3.4.5

05B0005Z 0 1/16W 5% T 16 3 R5.7.44

05B1046Z 100K 1/16W 5% T 16 4 R8.17.38.43

05B4739Z 47K 1/16W 5% T 16 5 R10.11.12.13.14

06E1511 150 1/ 4W 5% T 32 3 R23.24.25

0601016Z 100 1/10W 5% T 20 5 R18.19.20.21.22

0602013Z 200 1/10W 5% T 20 7 R1.2.3.4.6.40.41

0603911Z 390 1/10W 5% T 20 3 R26.28.30

130A736Y 0.01UF GRM39 X7R1 7 C9.10.11.12.13.14.15

1410460 10UF 293D106X00 1 C2

2000749 KRC244S TRANSISTO 2 Q2.3

2020925 KRA110SPK BRT 2 Q5.6

2203780 KIA78L05F I.C REGUL 1 U4

2218835 HT1622 I.C 1 U3

2431040 KDS160 DIODE 10 D1.2.3.4.5.6.7.8.9.10

2513180 KPT-1608SGC 1 DS1

3111426Y 10UH:NL322522T-100J 1 L1

406735A PCB 1 A1

814-562 LENS LCD 1 1

826-638 VOL KNOB 1 2

881-764 SPRING VOL 1 3

801-823 FRONT COVER ESCUTCHEON 1 4

907-596 TAPE LENS 3M 9448HK 0.16T 1 44

896-321 LENS LED SILICONE RUBBER 1 43

896-448 KEYPAD SILICONE RUBBER 1 5

907-013 FELT SPEAKER T0.3(BLK) 1 42

895-779 GASKET SPK 1 41

Page 41 of 54

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Service Manual PM200

895-627 SPEAKER HOLDER 1 34

416180A FRONT PANEL PCB 1

FRONT-END ASS'Y

05B0005Z 0 1/16W 5% T 16 1 R(C607)

05B2230Z 22K 1/16W 5% T 16 1 R601

05B4706Z 47 1/16W 5% T 16 1 R602

1310928Y 10PF GRM39 COG1 3 C603.613.618

1311057Y 11PF GRM39 COG1 1 C620

1312405Y 12PF GRM39 COG1 2 C616.623

1313062Y 13PF GRM39 COG1 1 C608

1314058Y 14PF GRM39 COG1 1 C619

1320121Y 20PF GRM40 COG2 1 C(L603)

1320253Y 20PF GRM39 COG2 1 C617

1327340Y 27PF GRM39 COG2 1 C605

1339407Y 3.9PF GRM39 COG3R 1 C622

1347571Y 47PF GRM39 COG4 1 C609

1347724W 470PF C1608 C0G1 1 C611

1356315Y 5.6PF GRM39 COG5 1 C614

1360143Y 6PF GRM39 COG0 2 C615.621

1380110Y 8PF GRM39 COG0 3 C601.604.624

2003070 AT-41532 TRANSISTE 1 Q601

2430494Z KDS226 DIODE CHI 2 D601.602

3119433 14NH 03095TL 3 L604.607.608

3119828 0.30X0.90$X4T(R) 5 L601.602.605.606.609

MAIN B'D MANUAL ASS’Y

101A028Y 1000UF 25V 20% 10 1 C27

1048195 470UF 25V 20% 1 C156

1801266Z 0.01UF 63V 1 C803

1804751 0.47UF 4 1 C801

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Service Manual PM200

1804762 0.047UF 4 1 C802

2003225 PD55035S RF POWER 1 Q28

2216786 TDA1519C I.C AUDIO 1 U14

2220130A KIA7808PI I.C REGUL 1 U20

2431765 XB15A407A2GB 2 D1.2

2450087X 1N5404 DIODE REC 1 D21

2622280Z 3.579545MHZ 1 Y7

2634180 44.645M -30 15PM 3 1 Y6

2703169Y LTWM455HT(2.832.689 1 FL3

2703510Z LTM455FW(2.832.685) 1 FL2

2712255 45N15B4 45.1MHZ 2 FL4.5

3000081Z EI-19(CHOKE) 1 L28

3106273 5.0X0.8X7.5T:R 1 L46

3109131 1.0X0.45X4T:R(SMD) 2 L31.33

3111789 2.5X0.5X10T:R 1 L23

3111790 2.5X0.7X3T:R 1 L24

3112027 1.2X0.3X2T SMD (R) 1 L18

3120655 2.95X1.3X2T:L 1 L21

3120666 3.45X1.3X2T:L 1 L25

3120688 3.98X1.3X2T:L 1 L22

3204238 FB-64-5111 FERRITE 1

4208358Z 3.5& SKJS-3501G 1 J1

4210021 6PIN SINGLE LINE 2 CON1.2

4217323 BCS-112-L-D-HE 1 J4

4227461 52231-1417CONNECTOR 1 J2

907600 CU PLATE STIC 85 X 1

MAIN B'D SMD ASS'Y

05B0005Z 0 1/16W 5% T 16 58 R(LK1.2.4.5.6.7.8.9.

10.11.12. 13.14.15.17

18.19.21.24.30.31

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Service Manual PM200

39.40.101,03.22,5,67

32) R7.9.12.15.55.

76.85.91.107.114,18,

33,46,72,87,97.203.209

249,254,256,284.304,

5,6.505.C112

05B1002Z 10 1/16W 5% T 16 2 R506.714

05B1013Z 100 1/16W 5% T 16 9 R5.14.23.62.103.217.

426.901. 910

05B1024Z 1K 1/16W 5% T 16 12 R8.63.100.101.123.171

191.192.216.308.902

909

05B1035Z 10K 1/16W 5% T 16 26 R4.18.20.21.26.30.31

53.82.83.86.95.97.1

35.158.225.243.255.

283.295.298.500.501.

502.503.903

05B1046Z 100K 1/16W 5% T 16 12 R3.35.38.50.61.119.1

25.159.196.220.307.712

05B1057Z 1M 1/16W 5% T 16 3 R47.145.302

05B1134Z 11K 1/16W 5% T 1608 1 R32

05B1222Z 1.2K 1/16W 5% T 16 1 RV1

05B1233Z 12K 1/16W 5% T 16 2 R81.270

05B1529Z 1.5K 1/16W 5% T 16 1 R36

05B1530Z 15K 1/16W 5% T 16 1 R904

05B1541Z 150K 1/16W 5% T 16 1 R57

05B1804Z 18 1/16W 5% T 16 1 R121

05B1815Z 180 1/16W 5% T 16 2 R78.80,238

05B1826Z 1.8K 1/16W 5% T 16 1 R37

05B1837Z 18K 1/16W 5% T 16 2 R33.111

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05B1848Z 180K 1/16W 5% T 16 1 R51

05B2032Z 20K 1/16W 5% T 16 4 R98.275.278.281

05B2207Z 22 1/16W 5% T 16 2 R1.17

05B2218Z 220 1/16W 5% T 16 8 R45.70.200.207.221.

223.231.244

05B2229Z 2.2K 1/16W 5% T 16 5 R69.122.179.239.907

05B2230Z 22K 1/16W 5% T 16 12 R19.22.25.27.137

226,229.230.246,294

05B2241Z 220K 1/16W 5% T 16 4 R49.56.109.131

05B2296Z 2.2 1/16W 5% T 16 2 R296.297

05B2427 2.4K 1/16W 5% T 16 1 R6

05B2438Z 24K 1/16W 5% T 16 2 R213.253

05B2713Z 270 1/16W 5& T 16 1 R241

05B2724Z 2.7K 1/16W 5% T 16 1 R274

05B2735Z 27K 1/16W 5% T 16 3 R16.235.288

05B2746Z 270K 1/16W 5% T 16 2 R199.299

05B3040Z 300K 1/16W 5% T 16 1 R713

05B3303Z 33 1/16W 5% T 16 2 R77.132

05B3314Z 330 1/16W 5% T 16 4 R54.198.205.214

05B3325Z 3.3K 1/16W 5% T 16 1 R157

05B3336Z 33K 1/16W 5% T 16 2 R208.315

05B3622 3.6K 1/16W 5% T 160 1 R154

05B3907Z 39 1/16W 5% T 16 1 R79

05B3929Z 3.9K 1/16W 5% T 16 4 R2.227.260.908

05B3930Z 39K 1/16W 5% T 16 2 R228.236

05B4333Z 43K 1/16W 5% T 16 3 R102.110.152

05B4706Z 47 1/16W 5% T 16 1 R292

05B4717Z 470 1/16W 5% T 16 1 R293

05B4728Z 4.7K 1/16W 5% T 16 15 R11.48.60.117.130.150

160.166..167.175.240

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257.258.259.291

05B4739Z 47K 1/16W 5% T 16 17 R28.52.68.99.138.144

173.182. 184.222.224

234.245.251.269. +

301.309

05B4740Z 470K 1/16W 5% T 16 3 R94.120.185

05B5109Z 51 1/16W 5% T 1608 3 R66.905.906

05B5604Z 56 1/16W 5% T 16 2 R13.59

05B5615Z 560 1/16W 5% T 16 2 R141.242

05B5626Z 5.6K 1/16W 5% T 16 7 R10.74.194.218.247.30

303

05B5637Z 56K 1/16W 5% T 16 4 R24.108.156.711

05B6832Z 68K 1/16W 5% T 16 1 R34

05B7521Z 7.5K 1/16W 5% T 16 3 R96.287.289

05B8232Z 82K 1/16W 5% T 16 1 R237

05B9129Z 9.1K 1/16W 5% T 16 1 R183

0592718Z 270 1/ 8W 5% T 32 1 R129

06C1016Z 100 1/ 2W 5% T 50 2 R90.126

0600008Z 0 1/10W 5% T 20 2 R(C132.180)

0601027Z 1K 1/10W 5% T 20 1 R67

0601050Z 1M 1/10W 5% T 20 1 R267

0601225Z 1.2K 1/10W 5% T 20 1 R58

0602035Z 20K 1/10W 5% T 20 2 R29.310

0605618Z 560 1/10W 5% T 20 2 R89.92

751036 10K RH03E1C14X 2 RV2.3

752231 22K RH03E1CJ4X 1 RV4

130A604Y 0.1UF GRM40 X7R1 4 C59.155.159.162

130A736Y 0.01UF GRM39 X7R1 37 C31.36.60.129.133.137

147.176 .177.182.

198.201.202.210.212.

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226.229.243.245.267.

275.276. 286.309.310

313.314.316.195.

317.321.904.905.908.

909.910. 911

130A747Y 0.1UF GRM39 Y5V1 36 C2.6.35.37.38.40.41.

42.43.44. 45.47.65.69

70.72.75.88.90.91,108

172.191.205, 214.257.

271.274.278, 279.323.

331.423. 424.902

130A758Y 0.001UF GRM39 X7R1 18 C32.33.101.102.127.

138.171.174.189.190.

287.288.291.292.307.+

308.329.330

130B307 UMK107CG 102JZ 5% 0 3 C32.54.506

1301755 0.01UF GRM40 X7R1 3 C277.311.312

1301986 0.01UF GRM40 X7R1 1 C3

130A990 0.012UF GRM39 X7R1 1 C170

1302509 0.0027UF GRM39 X7R2 1 C263

1303407 0.0033UF GRM39 X7R3 1 C262

1304327Y 0.0047UF GRM39 X7R4 3 C50.51.164

1305313Y 0.5PF GRH111COG0 1 C96

1306068Y 0.068UF GRM40 X7R6 1 C232

1306244 0.68UF GRM40 Y5V6 1 C163

1307098Y 0.75PF GRH111COG0 1 C109

1308062 0.0082UF GRM39 X7R8 1 C104

1310897Y 1UF GRM40 Y5V1 3 C26.242.901

1310928Y 10PF GRM39 COG1 3 C12.16.266

1310939Y 100PF GRM39 COG1 2 C237.280

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1311057Y 11PF GRM39 COG1 2 C14.301

1311354Y 1UF GRM39 Y5V1 3 C46.175.421

1311529Y 10PF GRM111COG1 1 C258

1312405Y 12PF GRM39 COG1 2 C130.165

1312416Y 120PF GRM39 COG1 6 C1.22.58.67.183.230

1313040Y 13PF GRM40 COG1 1 C203

1313062Y 13PF GRM39 COG1 2 C181.234

1314058Y 14PF GRM39 COG1 1 C29

1315648Y 15PF GRM39 COG1 4 C122.303.332.334

1315758Y 150PF GRM39 COG1 2 C103.119

1315912Y 1.5PF GRM111COG1 2 C98.197

1316041Y 16PF GRM39 COG1 2 C28.83

1318342Y 18PF GRM39 COG1 4 C9.57.259.260

132A022Y 2.2UF JMK107F225 1 C52

1320253Y 20PF GRM39 COG2 2 C15.19

1322257Y 22PF:GR111COG220J50 1 C255

1322598Y 22PF GRM39 COG2 3 C77.145.146

1322608Y 220PF GRM39 COG2 26 C5.10.49.78.79.81.84,85

86.105.113.134.167,173

187. 208.221.223. 225.

244. 248.249. 325.360

1322983Y 2.2PF GRH111COG2 2 C110.169

1327339Y 2.7PF GRM39 COG2 1 C272

1327340Y 27PF GRM39 COG2 3 C17.121.219

1331024Y 3PF GRM39 COG0 1 C235

1331035Y 30PF GRM39 COG3 1 C30

1333314 3.3PF GRH111COG3 1 C256

1333491Y 33PF GRM39 COG3 2 C18.123

1333600 330PF GRH111COG3 2 C107.118

1336140Y 36PF:GR111COG360D50 1 C186

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1339130 3.9PF GRH111COG3 1 C296

1339361Y 390PF GRH111COG3 1 C124,125

1340077Y 4PF GRM40 COG0 1 C206

1347560Y 4.7PF GRM39 COG4 1 C299

1347571Y 47PF GRM39 COG4 4 C25.120.268.300

1347670Y 4.7PF GRM40 COG4 1 C204

1347724W 470PF C1608 C0G1 22 C11.89.115.126.139.

140.141.143.144.149.

150.151.152.160.184.+

220.239.250.252.281.

282.306

1356315Y 5.6PF GRM39 COG5 1 C298

1356579Y 5.6PF GRH111COG5 1 C99

1360143Y 6PF GRM39 COG0 2 C4.82

1368381Y 6.8PF GRM39 COG6 1 C13

1370071Y 7PF GRM40 COG0 1 C111

1370193Y 7PF GRH111COG0 1 C100

1380110Y 8PF GRM39 COG0 1 C196

1380176Y 8PF GRM111COG0 1 C200

1382323Y 82PF GRM39 COG8 3 C55.68.154

1382423Y 8.2PF GRM39 COG8R2 1 C264

1390061 9PF GRM426COG0 1 C222

1410361 1UF 293D105X00 8 C71.73.185.218.253.

284.294.318

1410460 10UF 293D106X00 1 C320

1410514 10UF 293D106X00 3 C20.188.251

1410592 10UF 293D106X06 6 C135.136.246.270.273

0.319

1410723Y 10UF TSM1A106AS 5 C34.39.161.216.283

1422326Z 22UF 293D226X00 1 C158

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1447200Z 4.7UF 293D475X00 4 C153.233.333.335

1447419Z 4.7UF 293D475X00 8 C24.66.76.142.148.194

236.241

2000035 BFR92A REEL 3 Q2.3.13

2001164 BLT50 (SOT223) 1 Q41

2003069 2SK3075 FET RF PO 1 Q39

2003289 BFP193 TRANSISTO 1 Q34

2003339 KTC4075V-Y-RTK 4 Q18.32.35.37

2003340 KTA2014V-Y-RTK 1 Q905

2003431 NTD20N06LT4G (CASE 1 Q25

2020925 KRA110SPK BRT 4 Q20.21.24.701

2020958Z KRC104SND TRANSISTO 14 Q5.6.8.10.11.16.19.22

26.27.30.38.42.48

2021065 KTA1504SY TRANSISTO 2 Q902.903

2021131 KTC3875S(BL) 4 Q7.15.901.904

2021164 KTA1663 TRANSISTO 3 Q14.23.47

2031817Z PBR951 TRANSISTO 1 Q12

2180577Z KRA104S TRANSISTO 8 Q1.4.9.29.31.33.36.40

2201104 KIA358F I.C OP AM 6 U4.5.9.11.12.15

2205201 TA31136FN I.C IF DE 1 U2

2208169 MAX232ACSE (SO16) 1 U3

2211967Y CAT25C32V1-TE13 1 U6

2212953Z TK71733SCLI.C VOLT. 1 U22

2213446Z TK71750SCLI.C VOLT. 1 IC1

2214771 LM1877M-9 I.C DUAL 1 U19

2217936 MB15E03SL I.C PLL 1 U1

2218809 CMX881E1 I.C 1 U13

2218813 MT8870DN1 I.C 1 U34

2218824 AD5300 8BIT BIGITA 1 U7

2218909 M30624FGPGP(LQFP,10 1 U18

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2232249 MC14066BDR2G 1 IC406

2310777Z LP2951CMX I.C VOLT. 1 U10

2411798 Z02W5.6Y 5.6V 0.2 3 D5.22.23

2430494Z KDS226 DIODE CHI 2 D901.902

2430515 KDS184S DIODE SI 2 D8.16

2430526 KDS193 DIODE SI 1 D20

2430636 KDS181S A3DIODE SWI 4 D11.12.17.19

2430878 UPP9401(T&R)50V 2. 1 D3

2431040 KDS160 DIODE 1 D10

2431226 HSMS-2817 #L31 1 D4

2490142 BAT74 DIODE DUA 2 D13.30

2690423Y VX-F7M-2.0FX 1 Y2

2703587 CDBCB455KCAY24-R0 1 Y1

3002238 617PT-1667=P3 2 T1.2

3108596 18NH:LL2012-F18NM 2 L3.29

3112445 12NH HK160812NJ 1 L37

3114009 2.7UH LK16082R7K 6 L5.6.11.13.15.35

3117626 18NH LL1608-FH1 4 L1.2.4.16

3120435 22NH LL1608-FH2 2 L38.39

3121300 0.68UH SWI0805FTR 1 L27

3121322 1UH SWI0805FT1 1 L12

3121333 1.2UH SWI0805FT1 1 L47

3121652 100NH SWI0805CTR 2 L7.8

3121674 150NH SWI0805CTR 1 L14

3121849 10NH SWI0603CT1 1 L17

3212152 BCM201209A600 45 R39.40.41.42.43.44.46

65.87.112.116.139

140.143.149.161.

162.165.168.169.170.

174.178. 181.188.189

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193.211.212.233.

250.252.262.263.264.

265.266. 271.272.273

276.277.280.282,85

4A6148A 136.4 X 184.7 X 1.6 1

406753A 18.2 X 10.9 X 1.6T 1

416172A 145 X 98 X 1.6T F 1

416180A 102.5 X 37.8 X 1.6T 1

PACKING ASS'Y

91D412 DW1"E" 310(W)X 392 0.2

91D423 SW 1S"E" 200(W)X 9 2

91D434 SW 1S "E" 302(W)X 2 1

921015E P.E 100X150XT0.05 1

922535E P.E 250X350XT0.05 1

VCO ASSEMBLY No. 57790VA

05B1013Z 100 1/16W 5% T 16 2 R206.306

05B1046Z 100K 1/16W 5% T 16 1 R202

05B1815Z 180 1/16W 5% T 16 1 R307

05B2218Z 220 1/16W 5% T 16 1 R207

05B2229Z 2.2K 1/16W 5% T 16 4 R204.205.304.305

05B4728Z 4.7K 1/16W 5% T 16 2 R203.303

130A758Y 0.001UF GRM39 X7R1 1 C215

1305159Y 0.5PF GRM39 COG0 1 C205

1310917Y 1PF GRM39 COG0 1 C203

1310928Y 10PF GRM39 COG1 1 C311

1311057Y 11PF GRM39 COG1 1 C202

1313062Y 13PF GRM39 COG1 1 C302

1315637Y 1.5PF GRM39 COG1 1 C204

1322608Y 220PF GRM39 COG2 5 C212.216.301.312.316

1331024Y 3PF GRM39 COG0 2 C213.313

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Service Manual PM200

1340121Y 4PF GRM39 COG0 4 C208.217.308.317

1347702Y 470PF GRM39 X7R4 1 C201

1356315Y 5.6PF GRM39 COG5 2 C206.211

1370137Y 7PF GRM39 COG0 2 C214.314

1380110Y 8PF GRM39 COG0 1 C306

2000673 2SC5084-O TRANSISTO 4 Q202.203.302.303

2020925 KRA110SPK BRT 2 Q204.304

2420224 1SV229 DIODE VAR 3 D201.202.301

3110517 0.033UH:NL252018T-0 2 L205.305

3110672 0.1UH:NL252018T-R10 2 L201.301

3110759 0.47UH:NL252018T-R4 1 L202

3110782 0.82UH:NL252018T-R8 2 L204.L(R309)

3112182 VCOOSC1.2T E558AN-1 2 L203.303

406833A 17 X36 X0.8 FR4 1

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Service Manual PM200

Contact Details

Should you have any queries regarding this manual, or the information within it, please

contact:

Maxon House,

Cleveland Road,

Hemel Hempstead,

Hertfordshire,

United Kingdom,

HP2 7EY

Tel: + 44 (0) 1442 267 777

Fax: + 44 (0) 1442 215 515

[e-mail]

www.maxoncic.co.uk

Technical Support:

Tel: + 44 (0) 1442 226 170

Email:

Customer and Sales Support:

Telephone: + 44 (0) 1442 267 777

Email:

[e-mail]

[e-mail]

Repairs:

Tel: + 44 (0) 1442 267 777

Email:

Page 54 of 54

[e-mail]

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