Icom IC-9100 User manual

S-14721XZ-C1
Jun. 2011
HF/VHF/UHF TRANSCEIVER

This service manual describes the latest technical
information for the IC-9100 HF/VHF/UHF TRANSCEIVER,
at the time of publication.
NEVER connect the transceiver to an AC outlet or to a DC
power supply that uses more than the specified voltage.
This will ruin the transceiver.
DO NOT expose the transceiver to rain, snow or any liquids.
DO NOT reverse the polarities of the power supply when
connecting the transceiver.
DO NOT apply an RF signal of more than 20 dBm (100 mW) to
the antenna connector. This could damage the transceiver’s
front-end.
To upgrade quality, any electrical or mechanical parts
and internal circuits are subject to change without notice
or obligation.
MODEL VERSION
IC-9100
[USA]
[EUR]
[EUR-01]
[ITR]
[ESP]
[TPE]
[KOR]
[CHN]
[FRA]
[EXP]
Be sure to include the following four points when ordering
replacement parts:
1. 10-digit Icom part number
2. Component name
3. Equipment model name and unit name
4. Quantity required
<ORDER EXAMPLE>
1110003491 S.IC TA31136FNG IC-9100 MAIN UNIT 5 pieces
8820001210 Screw 2438 screw IC-9100 Top cover 10 pieces
Addresses are provided on the inside back cover for your
convenience.
ORDERING PARTS
1. Make sure that the problem is internal before
disassembling the transceiver.
2. DO NOT open the transceiver until the transceiver 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 tuning tool MUST be used for all adjustments.
5. DO NOT keep power ON for a long time when the
transceiver is defective.
6. DO NOT transmit power into a Standard Signal
Generator or a Sweep Generator.
7. ALWAYS connect a 50 dB to 60 dB attenuator between
the transceiver and a Deviation Meter or Spectrum
Analyzer, when using such test equipment.
8. READ the instructions of the test equipment throughly
before connecting it to the transceiver.
REPAIR NOTES
INTRODUCTION CAUTION
Icom, Icom Inc. and the Icom logo are registered trademarks of Icom Incorporated (Japan) in Japan, the United States, the
United Kingdom, Germany, France, Spain, Russia and/or other countries.

TABLE OF CONTENTS
SECTION 1 SPECIFICATIONS
SECTION 2 INSIDE VIEWS
SECTION 3 CIRCUIT DESCRIPITON
3-1 RECEIVER CIRCUITS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3-2 TRANSMITTER CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
3-3 FREQUENCY SYNTHESIZER CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
3-4 VOLTAGE DIAGRAMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
3-5 PORT ALLOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
SECTION 4 ADJUSTMENT PROCEDURES
4-1 PREPARATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4-2 ADJUSTMENTS ON THE PLL UNIT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4-3 ADJUSTMENT ON THE MAIN UNIT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
4-4 ADJUSTMENT ON THE PA-B UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
4-5 ADJUSTMENTS ON THE RF-A UNIT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
4-6 ADJUSTMENTS ON THE RF-B UNIT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
4-7 ADJUSTMENT ON THE CTRL UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
4-8 ADJUSTMENTS ON THE FUNCTION DISPLAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
SECTION 5 PARTS LIST
SECTION 6 MECHANICAL PARTS
SECTION 7 BOARD LAYOUTS
DISPLAY BOARD AND DC-DC UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
PLL UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
MAIN UNIT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
CONNECT UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
PA-A UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
PA-B UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11
NETWORK UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13
CTRL UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15
BPF, JACK, MIC, VR-A/B/C, M-CH AND RIT UNITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17
RF-A UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19
RF-B UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21
SECTION 8 WIRING DIAGRAM
SECTION 9 BLOCK DIAGRAM
SECTION 10 VOLTAGE DIAGRAM
DISPLAY BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
CONNECT UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3
MAIN UNIT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-6
RF-A UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-12
RF-B UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-14
BPF UNIT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-18
PA-A UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-18
PA-B UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20
CTRL UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-22
DC-DC UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-23
NETWORK UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-24
PLL UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-25

1 - 1
SECTION 1
.
SPECIFICATIONS
■General
• Frequency coverage : (unit: MHz)
Receive
0.030–60.000*1*2
136.000–174.000*1*2
420.000–480.000*1*2
1240.000–1320.000†
Transmit
1.800–1.999*2, 3.500–3.999*2,
5.330500*3, 5.346500*3, 5.366500*3,
5.371500*3, 5.403500*3,
7.000–7.300*2, 10.100–10.150*2,
14.000–14.350*2, 18.068–18.168*2,
21.000–21.450*2, 24.890–24.990*2,
28.000–29.700*2,50.000–54.000*2
144.000–148.000*2,430.000–450.000*2
1240.000–1300.000†
*
1Some frequency bands are not guaranteed.
*
2Depending on version.
*
3
USA version only. USB mode only.
• Mode : USB, LSB, CW, RTTY, AM, FM,
DV*
*The optional UT-121 is required.
• No. of memory channels : 297CH (99CH × 3 band)
(
396CH with UX-9100‡; 99CH × 4
bands)
• No. of scan edge
memory channels : 18CH (6 × 3 band)
(24CH with UX-9100‡; 6CH × 4
bands)
• No. of call channels : 3CH (1 × 3 band)
(4CH with UX-9100‡; 1CH × 4
bands)
• No. of Satellite
memory channels : 20CH
• Antenna connector : SO-239 ×3
Type-N ×2*
*When the optional UX-9100 is installed.
• Antenna impedance : 50 Ω
(at Antenna Tuner OFF)
• Usable temperature range : 0˚C to +50˚C (+32˚F to +122˚F)
• Frequency stability : Less than ±0.5 ppm 5 min. after
power ON.
(0˚C to +50˚C; +32˚F to
+122˚F)
• Frequency resolution : 1 Hz
• Power supply :
13.8 V DC ±15% (negative ground)
• Power consumption
Transmit
Max. power : 24.0 A (HF/50/144/430 MHz band)
11.0 A (1200 MHz band)†
Receive
Standby : 3.0 A (HF/50/144/430 MHz band)
4.0 A (1200 MHz band)†
Max. audio : 4.5 A (HF/50/144/430 MHz band)
5.5 A (1200 MHz band)†
• Dimensions : 315(W) ×116(H) ×343(D) mm
(projections not included) 12.4(W) ×4.57(H) ×13.5(D) in
• Weight (approximately) : 11.0 kg; 24.2 lb
11.95 kg; 26.3 lb (with UX-9100)
• ACC connector : 13-pin
• CI-V connector : 2-conductor 3.5 (d) mm (1⁄8″)
■Transmitter
• Output power (continuously adjustable)
Frequency band Output power
HF/50 MHz 2 to 100 W (AM: 2 to 30 W)*
144 MHz 2 to 100 W
430 MHz 2 to 75 W
1200 MHz†1 to 10 W
(at 13.8 V DC/+25˚C)
* In the AM mode, transmission can be performed only on
the HF/50 MHz frequency band.
• Modulation system
SSB : Digital PSN modulation
AM : Digital Low power modulation
FM : Digital Phase modulation
DV* :
GMSK Digital Phase modulation
*The optional UT-121 is required.
• Spurious emission
(Spurious domain)
HF bands : Less than –50 dB
50/144 MHz band : Less than –63 dB
430 MHz band : Less than –61.8 dB
1200 MHz band†: Less than –53 dB
(Out-of-band domain)
HF bands : Less than –40 dB
50/144/430 MHz band: Less than –60 dB
1200 MHz band†: Less than –50 dB
• Carrier suppression : More than 40 dB
• Unwanted sideband
suppression : More than 55 dB
(1200 MHz: More than 40 dB)†
• TX variable range : ±9.999 kHz
• Microphone connector : 8-pin connector
• Microphone impedance : 600
Ω
• ELEC-KEY connector : 3-conductor 6.35(d) mm (1⁄4″)
• KEY connector :
3-conductor 6.35(d) mm (1⁄4″)
• SEND connector : Phono jack (RCA)
• ALC connector : Phono jack (RCA)
†The optional UX-9100 is required for 1200 MHz frequency band operation.
‡Only when the 1200 MHz frequency band is selected.

1 - 2
■Receiver
• Receive system
HF/50/144/430 MHz band : Double superheterodyne system
1200 MHz band†: Triple superheterodyne system
• Intermediate frequencies
1st : 64.455 MHz (HF/50 MHz band)
10.850 MHz (144 MHz band)
71.250 MHz (430 MHz band)
243.950 MHz (1200 MHz band)†
2nd : 36 kHz (HF/50/144/430 MHz)
10.950 MHz (1200 MHz)†
3rd : 36 kHz (1200 MHz)†
• Sensitivity
SSB, CW : 0.16 µV (1.80–29.99 MHz)*1
(10 dB S/N) BW=2.4 kHz 0.13 µV (50.0–54.0 MHz)*2
0.11 µV (144/430/1200†MHz)
AM (10 dB S/N) : 12.6 µV (0.5–1.799 MHz)*1
BW=6 kHz 2.0 µV (1.80–29.99 MHz)*1
1.6 µV (50.0–54.0 MHz)*2
1.4 µV (144/430 MHz)
FM (12 dB SINAD) : 0.5 µV (28.0–29.7 MHz)*1
BW=15 kHz 0.32 µV (50.0–54.0 MHz)*2
0.18 µV (144/430/1200†MHz)
DV (1% BER) : 1.0 µV (28.0–29.7 MHz)*1
CH Space=12.5 kHz 0.63 µV (50.0–54.0 MHz)*2
0.35 µV (144/430/1200†MHz)
• Squelch sensitivity
Frequency band Squelch sensitivity
HF SSB : Less than 5.6 µV*1
FM : Less than 0.3 µV*1
50 MHz SSB : Less than 5.6 µV*2
FM : Less than 0.3 µV*2
144/430 MHz SSB : Less than 1.0 µV
FM : Less than 0.18 µV
1200 MHz†SSB : Less than 1.0 µV
FM : Less than 0.18 µV
*1Preamp 1 is ON. *2Preamp 2 is ON.
• Selectivity (IF filter shape is set to SHARP.)
SSB (BW: 2.4 kHz) : More than 2.4 kHz/–6 dB
Less than 3.4 kHz/–40 dB
CW (BW: 500 Hz) : More than 500 Hz/–6 dB
Less than 700 Hz/–40 dB
RTTY (BW: 500 Hz) : More than 500 Hz/–6 dB
Less than 800 Hz/–40 dB
AM (BW: 6 kHz) : More than 6.0 kHz/–6 dB
Less than 10.0 kHz/–40 dB
FM (BW: 15 kHz) : More than 12.0 kHz/–6 dB
Less than 22.0 kHz/–40 dB
DV
(CH space: 12.5 kHz) : More than –50 dB
• Spurious and image rejection ratio
HF/50 MHz band* : More than 70 dB
*except IF through on 50 MHz band
144/430 MHz band : More than 60 dB
1200 MHz band†: More than 50 dB
• AF output power : More than 2.0 W at 10%
(at 13.8 V DC) distortion with an 8
Ω load
• AF output impedance : 8
Ω
• RIT variable range : ±9.999 kHz
• PHONES connector : 3-conductor 6.35 (d) mm (1⁄4″)
• External SP connector : 2-conductor 3.5 (d) mm
(1⁄8″)/8
Ω
• DSP ANF attenuation : More than 30 dB
(with 1 kHz single tone)
• DSP MNF attenuation : More than 70 dB
• DSP NR attenuation : More than 6 dB
(noise rejection in SSB)
■Antenna tuner
• Matching impedance range
HF bands : 16.7 to 150
Ω unbalanced
(Less than VSWR 1:3)
50 MHz band : 20 to 125 Ω unbalanced
(Less than VSWR 1:2.5)
• Minimum operating input : 8 W (HF bands)
power 15 W (50MHz band )
• Tuning accuracy : VSWR 1:1.5 or less
• Insertion loss : Less than 1.0 dB
(after tuning at RF power 100 W)
All stated specifications are typical and subject to change without notice or obligation.

2 - 1
SECTION 2
.
INSIDE VIEWS
RF-B UNIT
PA-B UNIT
PA-A UNIT
NETWORK UNIT
CONNECT UNIT
PLL UNIT
BPF UNIT
VARIABLE
CAPACITORS
• THE VIEW FROM THE BOTTOM OF CHASSIS
• THE VIEW FROM THE TOP OF CHASSIS

2 - 2
DC-DC CONVERTER
(IC2001)
• MAIN UNIT
(TOP VIEW)
BUFFER
(IC4405)
DSP
(IC4001)
LPF
(IC4402)
UT-121
(Optional product)
CMOS BUFFER
(IC6101)
CPLD
(IC1261)
LPF
(IC4404)
LPF
(IC4403)
BUFFER
(IC4401)
EEPROM
(IC4202)
CODEC
(IC4461)
BUFFER
(IC4483)
BUFFER
(IC4482)
LPF
(IC3453)
BUFFER
(IC4481)

2 - 3
DSP
(IC5001)
• MAIN UNIT
(BOTTOM VIEW)
BUFFER
(IC4661)
LPF
(IC4603)
CODEC
(IC5451)
BUFFER
(IC4601)
LPF
(IC5405)
BUFFER
(IC5482)
CMOS BUFFER
(IC6102)
ANALOG SW
(IC6002)
ANALOG SW
(IC3504)
+5 V REGULATOR
(IC2101)
LPF
(IC3601)
APC
(IC3271)
ID DETECTER
(IC3251)
S/P CONVERTER
(IC3204)
CMOS SW
(IC1162)
CPU
(IC1201)
EEPROM
(IC1081)
CMOSS BUFFER
(IC6103)
CODEC
(IC5452)
CODEC
(IC4651)
ANALOG SW
(IC3503)
BUFFER
(IC4602)
AGC DET
(IC3522)
ANALOG SW
(IC3518)
S/P CONVERTER
(IC3202)
ANALOG SW
(IC6001)
CMOS SW
(IC1161)
S/P CONVERTER
(IC3201)
ANALOG SW
(IC3506)
BUFFER
(IC1163)
VCA
(IC3401)
ANALOG SW
(IC3421)
ANALOG SW
(IC3422)
AF AMP
(IC3452)
ANALOG SW
(IC3517)
S/P CONVERTER
(IC3203)

2 - 4
2ND RX IF MIXER (VHF BAND)
(D251, D255)
1ST RX IF MIXER (VHF BAND)
• RF-B UNIT
TX POWER SUPPLY LINE SW
(Q35)
RX POWER SUPPLY LINE SW
(Q32)
D/A CONVERTER
(IC1)
DC AMP
(IC71)
1ST RX IF AMP (UHF BAND)
(Q2021)
1ST RX IF FILTER (UHF BAND)
(FI731)
1ST RX IF FILTER (VHF BAND)
(FI331A/B)
1ST RX IF AMP (VHF BAND)
(Q1021)
RF AMP (VHF BAND)
(IC2651)
1ST RX IF MIXER (UHF BAND) 2ND RX IF MIXER (UHF BAND)
(D251, D255)

2 - 5
• PLL UNIT
DDS-A
(IC702)
DDS-B
(IC1502)
SERIAL-PARALLEL
CONVERTER
(IC1402)
ANALOG SW
(IC1454)
DDS B
(IC1051)
32 MHz REFERENCE
FREQUENCY
OSCILLATOR
(X151)
PLL IC
(IC201)
LEVEL CONVERTOR
(IC1054)
PROGRAMMABLE CLOCK GENERATOR
(IC662)
ANALOG SW
(IC1455)
LEVEL CONVERTOR
(IC1053)
1ST TX/RX LO FILTER
(FI401)
SERIAL-PARALLEL
CONVERTER
(IC104)
SERIAL-PARALLEL
CONVERTER
(IC1401)
SERIAL-PARALLEL
CONVERTER
(IC103)