S-15005XZ-C1 August 2013

HF TRANSCEIVER

This service manual describes the latest technical informa-

tion for the IC-F8101/F8100 HF 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 specifi ed voltage. This

will ruin the transceiver.

DO NOT expose the transceiver to rain, snow or liquids.

DO NOT reverse the polarities of the power supply when con-

necting 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 VERSION

NUMBER

TX

POWER ACCESSORIE

IC-F8101

EXP-01 #01 125W

– AUS-01 #02 100W

USA-01 #03 125W

IC-F8100 UN-01 #04 125W

IC-F8101

EXP-02 #11 125W RMK-6

AUS-02 #12 100W RMK-6

USA-02 #13 125W RMK-6

IC-F8100 UN-02 #14 125W RMK-6

IC-F8101

EXP-03 #21 125W HM-192

AUS-03 #22 100W HM-192

USA-03 #23 125W HM-192

IC-F8100 UN-03 #24 125W HM-192

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

1110003491 S.IC TA31136FNG IC-F8101 MAIN UNIT 5 pieces

8820001210 Screw 2438 screw IC-F8101 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 dis-assem-

bling the transceiver.

2. DO NOT open the transceiver until the transceiver is dis-

connected 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 trans-

ceiver is defective.

6. DO NOT transmit power into a Standard Signal Generator

or a Sweep Generator.

7. ALWAYS connect a 40/60 dB attenuator between the trans-

ceiver and a Deviation Meter or Spectrum Analyzer, when

using such test equipment.

8. READ the instructions of the test equipment thoroughly

before connecting it to the transceiver.

REPAIR NOTES

INTRODUCTION CAUTION

(IC-F8101 [EXP-02])

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 DISASSEMBLY INSTRUCTION

SECTION 4 CIRCUIT DESCRIPITON 4-1 RECEIVER CIRCUITS ...................................................................................... 4-1

4-2 TRANSMITTER CIRCUITS ............................................................................... 4-2

4-3 FREQUENCY SYNTHESIZER CIRCUITS ....................................................... 4-4

4-4 VOLTAGE BLOCK DIAGRAM ........................................................................... 4-4

4-5 PORT ALLOCATIONS ...................................................................................... 4-5

SECTION 5 ADJUSTMENT PROCEDURES 5-1 PREPARATION ................................................................................................. 5-1

5-2 FREQUENCY ADJUSTMENT .......................................................................... 5-3

5-3 TRANSMIT ADJUSTMENT ............................................................................... 5-4

5-4 RECEIVE ADJUSTMENT ................................................................................. 5-5

SECTION 6 PARTS LIST

SECTION 7 MECHANICAL PARTS

SECTION 8 BOARD LAYOUTS

SECTION 9 GENERAL WIRING

SECTION 10 BLOCK DIAGRAM

SECTION 11 VOLTAGE DIAGRAM

1-1

SECTION 1. SPECIFICATIONS

M General

• Frequency coverage: Receive 0.5–29.9999 MHz Transmit 1.6–29.9999 MHz

• Mode: AUS versions J3E (USB), A3E (AM; RX only) Other versions J3E (USB/LSB),

A3E (AM; RX only) A1A (CW), F1B (FSK), J2B (D1, D2, D3)

• No. of memory Ch.: 500 channels (maximum)

• Usable temp. range: –30˚C to +60˚C; –22°F to +140°F

• Frequency stability: ±0.3 ppm (–30˚C to +60˚C; –22°F to +140°F)

• Antenna impedance: 50 Ω • Power supply: 13.8 V DC (negative ground) AUS versions 10.8–15.6 V DC Other versions 11.73–15.87 V DC

• Current drain: Transmit Less than 28 A

(at maximum power) Receive Less than 3.0 A

(at maximum audio)

• Dimensions (projections are not included): Main/Front package 62(H)×174(W)×259(D) mm

2.4(H)×6.9(W)×10.2(D) in • Weight (approximately):

Main/Front package 3.9 kg, 8.6 lb

M Transmitter

• Output power (typical): AUS versions J3E HIGH 100 W p-p MID 50 W p-p LOW 10 W p-p Other versions J3E/A1A HIGH 125 W p-p MID 50 W p-p LOW 10 W p-p

A3E HIGH 30 W Carrier MID 12.5 W Carrier LOW 3 W Carrier

F1B/J2B HIGH 75 W p-p MID 50 W p-p LOW 10 W p-p

• Spurious emission: USA versions 64 dB

below peak output power Other versions 64 dB (typical)

below peak output power

• Carrier suppression: 50 dB below peak output power

• Unwanted sideband suppression: 400 Hz 55 dB below peak output power

1 kHz 65 dB below peak output power

• Duty cycle: Normal conversation 100% ( –30˚C to +60˚C;

–22°F to +140°F) Continuous Data mode 25% ( –30˚C to +30˚C;

–22°F to +86°F) All mode with Fan (CFU-F8100) is active 100%

( –30˚C to +45˚C; –22°F to +113°F)

M Receiver

• Sensitivity: J3E (Pre Amp ON) (0.5–1.5999 MHz) 14 dBµV (10 dB S/N) (1.6–29.9999 MHz) –14 dBµV (10 dB S/N)

A3E (0.5–1.5999 MHz) 22 dBµV (10 dB S/N) (1.6–29.9999 MHz) 6 dBµV (10 dB S/N)

• Spurious response rejection ratio: More than 70 dB

• AF output power (at 13.8 V DC): More than 4.0 W at 10%

distortion with a 4 Ω load • Clarifi er range: ±200 Hz

All stated specifi cations are typical and subject to change without notice or obligation.

2-1

SECTION 2. INSIDE VIEWS

• DISPLAY UNIT

LCD DIMMER CONTROLLER (Q6301)

RESET IC (IC6001)

LCD DIMMER CONTROLLER (Q6302)

FRONT CPU CLOCK (X6001)

FRONT CPU (IC6004)

LEVEL CONVERTER (IC6012)

+10 V REGULATOR (IC6011)

+5 V REGULATOR (IC6008)

+3 V REGULATOR (IC6007)

MIC ALC AMP (IC6005)

LCD DIMMER CONTROLLER (Q6303)

+8 V REGULATOR (IC6009)

LCD DIMMER CONTROLLER (IC6010)

2-2

• MAIN UNIT

ALC AMP (IC1102)

1ST TX IF MIXER (IC1401)

1ST TX IF BUFFER (Q1401)

RF AMP (Q1117)

1/2 PRESCALER (IC1603)

RSSI METER AMP (IC1103)

3RD TX IF MIXER (IC1402)

R8 LINE CONTROLLER (IC1804)

MAIN CPU (IC1806)

DDS (IC1703)

SRAM (IC1812)

D/A CONVERTER (IC1815)

SERIAL TO PARALLEL CONVERTER

(IC1105)

2ND TX IF AMP (Q1417)

2ND RX IF AMP (Q1415)

2ND RX IF AMP (Q1413)

YGR AMP (IC1101)

RF AMP (Q1116)

1ST LO AMP (Q1410)

1ST TX/RX IF BPF (FI1401)

2ND RX IF FILTER (FI1402)

LEVEL CONVERTER (IC1817)

LEVEL CONVERTER (IC1818)

2-3

• PA UNIT

BIAS CONTROLLER (for POWER AMP) (IC4002)

COOLING FAN DRIVER (Q4008)

SERIAL TO PARALLE CONVERTER (IC5001)

VARISTOR-2 UNIT

POWER AMP (Q4006)

PRE-DRIVE AMP (Q4003)

RF AMP (Q4002)

COOLING FAN DRIVER (Q4001)

VARISTOR-1 UNIT

POWER AMP (Q4007)

POWER COMBINER (L4014)

POWER DIVIDER (L4009)

2-4

• DSP-1 UNIT

GPS DRIVE (IC3623)

BUFF (IC3629)

CLOCK GENERATOR (IC3610)

A/D CONVERTER (IC3608)

BUFFER (IC3605)

BUFFER (IC3614)

BUFFER (IC3603)

BUFFER (IC3602)

D/A CONVERTER (IC3013)

D/A CONVERTER (IC3613)

MIC AMP (IC3004)

AGC LIMITTER (IC3617)

BUFFER (IC3601)

BUFFER (IC3604)

AF AMP (IC3001)

AF MUTE SW (IC3005)

LPF (IC3003)

BUFFER (IC3615)

BUFFER (IC3607)

CODEC (IC3611)

ELECTRONIC VOLUME (IC3008)

S/P CNVERTER (IC3012)

AF SW (IC3624)

AF SW (IC3625)

2-5

• DSP-2 UNIT

USB HUB (IC8207)

AF SW (IC8216)

USB BRIDGE (IC8209)

USB BRIDGE (IC8210)

USB CODEC (IC8208)

+3.3 V REGURATOR (IC8215)

RESET IC (IC8204)

AF SW (IC8217)

RESET IC (IC8205)

DSP (IC8201)

+1.2 V REGULATOR (IC8203)

3-1

SECTION 3. DISASSEMBLY INSTRUCTION

2. Removing the MAIN UNIT