Icom IC-FR3000 Series Manual de usuario

VHF FM REPEATER

iC-fr3000

iC-fr3100

INTRODUCTION

This service manual describes the latest service informa-

tion for the IC-FR3000/IC-FR3100 VHF FM REPEATER.

To upgrade quality, all electrical or mechanical parts and

internal circuits are subject to change without notice or

obligation.

DANGER

USE ONLY the specified AC voltage described on the

AC power socket. Other voltages may causes repeater

damage or personal injury.

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

DO NOT reverse the polarities of the power supply when

connecting the repeater.

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

mW) to the antenna connector. This could damage the

repeater’s front end.

ORDERING PARTS

Be sure to include the following four points when ordering

replacement parts:

1. 10-digit order numbers

2. Component part number and name

3. Equipment model name and unit name

4. Quantity required

1110003780 S.IC NJM2902V IC-FR3000 LOGIC UNIT 1 piece

8930056450 2368 6-key IC-FR3000 CHASSIS 5 pieces

Addresses are provided on the inside back cover for your

convenience.

REPAIR NOTES

Make sure a problem is internal before disassembling

the repeater.

DO NOT open the repeater until the repeater is discon-

nected from its power source.

DO NOT force any of the variable components. Turn

them slowly and smoothly.

DO NOT short any circuits or electronic parts. An insu-

lated tuning tool MUST be used for all adjustments.

DO NOT keep power ON for a long time when the re-

peater is defective.

DO NOT transmit power into a signal generator or a

sweep generator.

ALWAYS connect a 40 dB or 50 dB attenuator be-

tween the repeater and a deviation meter or spectrum

analyser when using such test equipment.

READ the instructions of test equipment thoroughly

before connecting equipment to the repeater.

VersionModel

Europe

U.S.A.

Germany

Symbol Frequency range

AC supply

USA

FRG2

Power

50 [W]100 –120 [V]

150 –174 [MHz]

148 –172 [MHz]

IC-FR3000

IC-FR3100

GEN2

220 –240 [V]

General GEN4

GEN74 50 [W]

220 –240 [V]

EUR2 25 [W]

TABLE OF CONTENTS

SECTION 1 SPECIFICATIONS

SECTION 2 INSIDE VIEWS

SECTION 3 CIRCUIT DESCRIPTION

3 - 1 RECEIVER CIRCUITS ................................................................................................... 3 - 1

3 - 2 TRANSMITTER CIRCUITS ............................................................................................ 3 - 2

3 - 3 PLL CIRCUITS................................................................................................................. 3 - 4

3 - 4 OTHER CIRCUITS.......................................................................................................... 3 - 5

3 - 5 POWER SUPPLY CIRCUITS ......................................................................................... 3 - 5

3 - 6 PORT ALLOCATIONS .................................................................................................... 3 - 6

SECTION 4 ADJUSTMENT PROCEDURES

4 - 1 PREPARATION................................................................................................................ 4 - 1

4 - 2 PLL ADJUSTMENT.......................................................................................................... 4 - 5

4 - 3 SOFTWARE ADJUSTMENT .......................................................................................... 4 - 6

SECTION 5 PARTS LIST

SECTION 6 OPTION UNIT INSTALLATION

SECTION 7 MECHANICAL PARTS AND DISASSEMBLY

SECTION 8 SEMI-CONDUCTOR INFORMATION

SECTION 9 BOARD LAYOUTS

9 - 1 FRONT UNIT..................................................................................................................9-1

9 - 2 VR UNIT......................................................................................................................... 9 - 1

9 - 3 TVCO UNIT.................................................................................................................... 9 - 1

9 - 4 RVCO UNIT.................................................................................................................... 9 - 1

9 - 5 LOGIC UNIT................................................................................................................... 9 - 3

9 - 6 RX UNIT......................................................................................................................... 9 - 5

9 - 7 TX UNIT ......................................................................................................................... 9 - 7

9 - 8 PA UNIT.......................................................................................................................... 9 - 9

9 - 9 REG UNIT...................................................................................................................... 9 - 11

9 - 10 JACK1 UNIT................................................................................................................... 9 - 11

9 - 11 JACK2 UNIT................................................................................................................... 9 - 11

SECTION 10 BLOCK DIAGRAM

SECTION 11 WIRING DIAGRAM

SECTION 12 VOLTAGE DIAGRAM

Measurement method

Frequency range

Type of emission

Channel spacing

Frequency stability

Number of channels

Antenna connector

Power supply requirement

Current drain (approx.)

Operating temperature range

Dimensions (proj. not included)

Weight (approx.)

RF output power (High/Low)

Modulation system

Maximum frequency deviation

Spurious emissions

Adjacent channel power

Input impedance

Receive system

Intermediate frequencies

Sensitivity (typical)

Adjacent channel selectivity (typical)

Spurious response

Intermodulation (typical)

Audio output power

Audio output impedance

IC-FR3000 IC-FR3100

SECTION 1 SPECIFICATIONS

All stated specifications are subject to change without notice or obligation.

RECEIVER TRANSMITTER GENERAL

EIA / TIA-603 ETS 300 086

[USA2], [GEN2], [GEN4], [GEN74], [EUR2], [FRG2]: 150.000–174.000 MHz

[GEN74]: 148.000–172.000 MHz

Wide (25 kHz): 16K0F3E

Middle (20 kHz): 14K0F3E

Narrow (12.5 kHz): 8K50F3E

[USA2], [GEN2], [GEN4], [GEN74], [EUR2]: 25/12.5 kHz

[FRG2]: 20/12.5 kHz

±2.5 ppm ±1.0 kHz

Max. 32 channel

Type-N ×2 (50 Ω)

[USA2], [GEN2]: 100–120 V

[GEN4], [GEN74], [EUR2], [FRG2]: 220–240 V

13.6 V DC (negative ground) 13.2 V DC (negative ground)

TX (at 50 W) 15.0 A TX (at 25 W) 10.0 A

RX (max. audio) 2 A

(stand-by) 1 A

–30˚C to +60˚C (–22˚F to +140˚F) –25˚C to +55˚C

410(W) ×110(H) ×360(D) mm; 16.1 (W) ×4.3 (H) ×14.1 (D) inch

12 kg; 26.5 lb

50/10 W 25/5 W

Variable reactance frequency modulation

[Wide]: ±5.0 kHz, [Middle]: ±4.0 kHz, [Narrow]: ±2.5 kHz

70 dBc typical 0.25 µW ≤1GHz, 1.0 µW >1 GHz

[Wide], [Middle]: 70 dB, [Narrow]: 60 dB

600 Ω

Double-conversion superheterodyne system

1st: 31.65 MHz, 2nd: 455 kHz

0.5 µV at 12 dB SINAD 6 dBµV (emf) at 20 dB SINAD

[Wide], [Middle]: 70 dB, [Narrow]: 60 dB

70 dB

2.5 W typical at 10% distortion with a 4 Ωload

4 Ω

9 - 12

JACK1 UNIT

¡BOTTOM VIEW

JACK2 UNIT

¡BOTTOM VIEW

to PA UNIT

EP2

to PA UNIT

EP1

PS 0VPS 15V BATTERY

–

PS 15V

BATTERY

+PS 0V

to LOGIC UNIT J10

AF GND

DISC OUT

DC GND

AF OUT

AF GND

E MODG

E MOD2

E MOD3

E MODG

E DTCS

E MODG

RSSI

131

+E15V

¡BOTTOM VIEW

REG UNIT The combination of this page and the previous page

shows the unit layout in the same configuration as the

actual P.C. Board.

1-1-32, Kamiminami, Hirano-ku, Osaka, 547-0003, Japan S-14004MZ-C1-1

Icom IC-FR3000 IC-FR3100 Service Manual

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