Icom IC-FR3000 Series User manual

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
<SAMPLE ORDER>
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.
1.
2.
3.
4.
5.
6.
7.
8.
VersionModel
Europe
U.S.A.
Germany
Symbol Frequency range
AC supply
USA
FRG2
Power
50 [W]100 –120 [V]
150 –174 [MHz]
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
70 dB
2.5 W typical at 10% distortion with a 4 Ωload
4 Ω
AC
DC
TX
RX

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
J3
+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
© 2003 Icom Inc.

Icom IC-FR3000 IC-FR3100 Service Manual
Icom IC-FR3000 IC-FR3100 Service Manual
Icom IC-FR3000 IC-FR3100 Service Manual
Icom IC-FR3000 IC-FR3100 Service Manual
Icom IC-FR3000 IC-FR3100 Service Manual
Icom IC-FR3000 IC-FR3100 Service Manual
Icom IC-FR3000 IC-FR3100 Service Manual
Icom IC-FR3000 IC-FR3100 Service Manual
Icom IC-FR3000 IC-FR3100 Service Manual