Icom Ic-pcr1500 User manual

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iC-pcr1500

iC-pcr2500

S-14222MZ-C1

Jun. 2006

COMMUNICATIONS RECEIVERS

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This service manual describes the latest service information

for the IC-PCR1500 and IC-PCR2500 COMMUNICATIONS

RECEIVERS at the time of publication.

Be sure to include the following four points when ordering

replacement parts:

1. 10-digit Icom parts numbers

2. Component name and informations

3. Equipment model name and unit name

4. Quantity required

1110001811 S.IC TA7S04F IC-PCR2500 Main-A unit 5 pieces

8810008960 Screw FH M2.6 IC-PCR2500 Chassis 8 pieces

Addresses are provided on the inside back cover for your

convenience.

NEVER connect the receiver to an AC outlet or to a DC

power supply that uses more than 16 V. Such a connection

could cause a fire hazard and/or electric shock.

DO NOT expose the receiver to rain, snow or any liquids.

DO NOT reverse the polarities of the power supply when

connecting the receiver.

DO NOT apply an RF signal of more than 20 dBm (100 mW)

to the antenna connector. This could damage the receiver’s

front end.

1. Make sure a problem is internal before disassembling

the receiver.

2. DO NOT open the transceiver until the receiver is

disconnected from its power source.

3. DO NOT force any of the variable components. Turn

them slowly and smoothly.

4. DO NOT short any circuits or electronic parts. An

insulated turning tool MUST be used for all adjustments.

5. DO NOT keep power ON for a long time when the

receiver is defective.

6. READ the instructions of test equipment thoroughly

before connecting equipment to the receiver.

To upgrade quality, any electrical or mechanical parts

and internal circuits are subject to change without

notice or obligation.

Icom, Icom Inc. and logo are registered trademarks of Icom Incorporated (Japan) in the United States, the United

Kingdom, Germany, France, Spain, Russia and/or other countries.

INTRODUCTION CAUTION

ORDERING PARTS REPAIR NOTES

MODEL VERSION SYMBOL

IC-PCR1500

IC-PCR2500

Europe EUR-1

U.K. UK-1

U.S.A. USA-1

Canada CAN-1

France FRA-1

South East Asia SEA-1

Export EXP-2

EXP-3

IC-PCR2500* U.S.A. USA-3

*UT-122 is already installed as DIGITAL UNIT.

(IC-PCR2500)

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TABLE OF CONTENTS

SECTION 1 SPECIFICATIONS

SECTION 2 INSIDE VIEWS

SECTION 3 DISASSEMBLY INSTRUCTIONS

SECTION 4 CIRCUIT DESCRIPITON

4-1 RECEIVER CIRCUITS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4-2 PLL CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

4-3 DIGITAL MODE OPERATION WITH UT-122. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

4-4 POWER SUPPLY CIRCUITS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

4-5 CPU PORT ALLOCATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

SECTION 5 ADJUSTMENT PROCEDURES

5-1 PREPARATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5-2 MAIN-A UNIT ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

5-3 MAIN-B UNIT ADJUSTMENT (PCR2500 only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

SECTION 6 PARTS LIST

SECTION 7 MECHANICAL PARTS AND DISASSEMBLY

SECTION 8 SEMICONDUCTOR INFORMATION

SECTION 9 BOARD LAYOUTS

9-1 LOGIC UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

9-2 MAIN-A UNIT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

9-3 MAIN-B UNIT (PCR2500 only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5

9-4 UT-122 (Optional product; DIGITAL UNIT for [PCR2500; USA-3]) . . . . . . . . . . . . . . . . . . . . . . 9-7

SECTION 10 BLOCK DIAGRAM

SECTION 11 VOLTAGE DIAGRAM

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1 - 1

SECTION 1 SPECIFICATIONS

MGENERAL

• Frequency coverage *999999.908–000010.0: ,1 *2

999999.668–000.158 000000.0031–000.698 999999.0181–100000.0031 *999999.7681–000.2581 1

*999998.5032–000.7981 1

*999999.1182–000.7532 1

*999999.8682–000.3582 1

*999997.9013–000.8982 ,1 *

*999997.4513–000.6313 ,1 *

*999999.9923–000.1813 ,1 *

• Mode :FM, AM, WFM, USB*1, LSB*1, CW, DV*1,*2, P25*1,*3

*1: For PCR2500.Available on Main band only.

*2: For PCR2500.Available when optional UT-118 is installed.

*3: For PCR2500.Available when optional UT-122 is installed, and depending on versions.

• Number of memory channels :2600

• Tuning steps :1 Hz, 10 Hz, 20 Hz, 50 Hz, 100 Hz, 500 Hz, 1 kHz, 2.5 kHz, 5 kHz, 6.25 kHz,

8.33 kHz, 9 kHz, 10 kHz, 12.5 kHz, 15 kHz, 20 kHz, 25 kHz, 30 kHz, 50 kHz,

100 kHz, 125 kHz, 150 kHz, 200 kHz, 500 kHz, 1 MHz, 10 MHz, USER TS

• Operating temperature range :0°C to +60°C; +32°F to +140°F

• Frequency stability :±3 ppm (–10°C to +60°C)

• Power supply requirement :12 V DC ±15% (Negative ground)

*999999.92–000010.0: ,1 *2

000002.15–002.05 999999.701–005.78 00000.641–000.441 00000.044–000.034 00000.0031–000.0421 *999999.9923–010.0: ,1 *2

)lacipyt(Am056ybdnatS:NOrewoP A2.1nahtsseLoidua.xaM )lacipyt(Am055)NO-SABVBSU(CP:FFOrewoP )lacipyt(Am51)FFO-SABVBSU(CP

• Current drain (At 12 V DC ; approx.)

• Dimensions (projections not included) :146(W)×41(H)×206(D) mm; 53⁄4(W)×15⁄8(H)×81⁄8(D) in

• Weight (approx.) :1.2 kg; 2 lb 10 oz (PCR1500)

1.35 kg; 2 lb 15 oz (PCR2500)

• Antenna connector :BNC (50 Ω)

)lacipyt(Am056ybdnatS:noitarepodnabelgnis A2.1nahtsseLoidua.xaM )lacipyt(Am058ybdnatS:noitarepohctawlauD A5.1nahtsseLoidua.xaM )lacipyt(Am055)NOSABVBSU(CP:FFOrewoP

)

laci

(

Am51

)

FFOSABVBSU

(

*: PCR2500 only.

*1:.ylno

ylno dnabniaMnoelbaliavA.0052RCP-CIroF .zHM000000.0031ot05;egnarycneuqerfrevoc s

dnabbuS

*2:ylnoegnarzHM000.0003–594.0:deetnarauG

A.S.U

ecnarF

evobanahtrehtO

[PCR1500]

[PCR2500]

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MFW )DANISBd21;.veDzHk5.25/zHk1( Vµ4.1nahtsseL:zHM999.996–000.05 Vµ8.1nahtsseL:zHM000.0031–000.007 :zHM999.9922–100000.0031 Vµ81nahtsseL Vµ65nahtsseL:zHM000.0003–000.0032

MF )DANISBd21;.veDzHk5.3/zHk1( Vµ36.0nahtsseL:zHM999.92–000.82 Vµ36.0nahtsseL:zHM999.94–000.03 Vµ5.0nahtsseL:zHM999.932–000.05 Vµ5.0nahtsseL:zHM999.972–000.042 Vµ5.0nahtsseL:zHM999.992–000.082 Vµ5.0nahtsseL:zHM999.996–000.003 Vµ36.0nahtsseL:zHM000.0031–000.007 :zHM999.9922–100000.0031 Vµ6.5nahtsseL Vµ81nahtsseL:zHM000.0003–000.0032

MA )N/SBd01;.DOM%03/zHk1( Vµ52nahtsseL:zHM997.1–594.0 Vµ5.2nahtsseL:zHM999.41–008.1 Vµ5.2nahtsseL:zHM999.94–000.51 Vµ2nahtsseL:zHM999.992–000.05 Vµ2nahtsseL:zHM999.996–000.003 Vµ5.2nahtsseL:zHM000.0031–000.007 WC/BSS )N/SBd01( Vµ5nahtsseL:zHM997.1–594.0 Vµ5.0nahtsseL:zHM999.41–008.1 Vµ5.0nahtsseL:zHM999.94–000.51 Vµ4.0nahtsseL:zHM999.996–000.05 Vµ5.0nahtsseL:zHM000.0031–000.007

MRECEIVER

• Receive system :Triple-conversion superheterodyne and down converter

• Intermediate frequencies :1st: 266.700 MHz, 2nd: 10.700 MHz, 3rd: 450 kHz (except for WFM mode)

• Sensitivity :

1 - 2

• Selectivity :

)lacipyt(Bd6–/zHk8.2nahteroMMA/WC/BSS )lacipyt(Bd6–/zHk0.6nahteroMMF/MA/WC/BSS )lacipyt(Bd6–/zHk51nahteroMMF/MA )lacipyt(Bd6–/zHk05nahteroMMFW/MF/MA )lacipyt(Bd6–/zHk032nahteroMMFW