Icom Ic-7100 User manual

S-15008XZ-C1

July 2013

HF/VHF/UHF ALL MODE TRANSCEIVER

This service manual describes the latest technical information

for the IC-7100 HF/VHF/UHF ALL MODE 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 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

IC-7100

USA #02

EUR #03

EUR-01 #04

ITR #05

ESP #06

TPE #07

KOR #08

CHN #09

FRA #12

EXP #13

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-7100 MAIN UNIT 5 pieces

8820001210 Screw 2438 screw IC-7100 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 dB to 50 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 thoroughly

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............................................................................... 3-2

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

3-4 VOLTAGE BLOCK DIAGRAM ........................................................................... 3-4

3-5 PORT ALLOCATIONS ...................................................................................... 3-5

SECTION 4 ADJUSTMENT PROCEDURES

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

4-2 FREQUENCY ADJUSTMENT .......................................................................... 4-3

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

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

SECTION 5 PARTS LIST

SECTION 6 MECHANICAL PARTS

SECTION 7 BOARD LAYOUTS

SECTION 8 WIRING DIAGRAM

SECTION 9 BLOCK DIAGRAM

SECTION 10 VOLTAGE DIAGRAM

1-1

SECTION 1

SPECIFICATIONS

'ENERALD

s&REQUENCYCOVERAGE     UNIT-(Z

Receive

0.030000 –199.999999*1*2

400.000000 –470.000000*1*2

Transmit

1.800000 – 1.999999*2, 3.500000 – 3.999999*2,

5.255000 – 5.405000*1*3,

5.332000*3*4, 5.348000*3*4, 5.358500*3*4,

5.373000*3*4, 5.405000*3*4,

7.000000 – 7.300000*2, 10.100000 – 10.150000*2,

14.000000 – 14.350000*2, 18.068000 – 18.168000*2,

21.000000 – 21.450000*2, 24.890000 – 24.990000*2,

28.000000 – 29.700000*2,50.000000 – 54.000000*2,

70.000000 – 70.500000*2, 144.000000 – 148.000000*2,

430.000000 –450.000000*2

1Some frequency ranges are not guaranteed.

2Depending on version. *3USA version only.

4Center frequency.

s-ODE  53",3"#72449!-&-

WFM (RX only), DV

s.OOFMEMORYCHANNELS #((99CH × 5 bank)

s.OOFSCANEDGEMEMORYCHANNELS

6 CH (2 × 3 edges)

s.OOFCALLCHANNELS  #((2 × 2 band)

s!NTENNACONNECTOR  3/×2

sAntenna impedance: 50 ø

s5SABLETEMPERATURERANGE

–10˚C to +60˚C;

+14˚F to +140˚F

s&REQUENCYSTABILITY  ,ESSTHANÒPPMMINUTES

after power ON. (0˚C to +50˚C;

+32˚F to +122˚F at 430 MHz band)

s&REQUENCYRESOLUTION  (Z

s0OWERSUPPLY  6$#Ò

(negative ground)

s0OWERCONSUMPTION

Transmit

Max. power: 22.0 A

Receive

Standby: 0.9 A

Max. audio: 1.2 A

s$IMENSIONSPROJECTIONSNOTINCLUDED

Main unit: 167(W) ×58(H) ×225(D) mm;

6.6(W) ×2.3(H) ×8.9(D) in

Controller: 165(W) ×64(H) ×78.5(D) mm;

6.5(W) ×2.5(H) ×3.1(D) in

s7EIGHTAPPROXIMATELY

Main unit: 2.3 kg; 5.1 lb

Controller: 0.5 kg; 1.1 lb

s!##CONNECTOR  PIN

s$!4!CONNECTOR  CONDUCTORDMM1⁄10″)

s$!4!CONNECTOR  PIN

s2%-/4%CONNECTOR  CONDUCTORDMM1⁄8″)

TransmitterD

s/UTPUTPOWER(at 13.8 V DC/+25˚C): (continuously adjustable)

&REQUENCYBAND /UTPUTPOWER

HF/50 MHz 2 to 100 W (AM: 1 to 30 W)*

70 MHz 2 to 50 W (AM: 1 to 15 W)*

144 MHz 2 to 50 W

430 MHz 2 to 35 W

* In the AM mode, transmission can be performed only on

the HF/50/70 MHz frequency band.

s-ODULATIONSYSTEM

SSB: Digital PSN modulation

AM: Digital Low power modulation

FM: Digital Phase modulation

DV: GMSK Digital Phase modulation

s3PURIOUSEMISSION

(Spurious domain)

HF bands: Less than –50 dB

50 MHz band: Less than –63 dB

70/144/430 MHz bands:

Less than –60 dB

(Out-of-band domain)

HF bands: Less than –40 dB

50/70/144/430 MHz bands:

Less than –60 dB

s#ARRIERSUPPRESSION  -ORETHAND"

s5NWANTEDSIDEBANDSUPPRESSION

More than 50 dB

s-ICROPHONECONNECTOR  PINMODULARJACK

s-ICROPHONEIMPEDANCE  ø

s%,%#+%9CONNECTOR  CONDUCTORDMM1⁄8″)

s+%9CONNECTOR  CONDUCTORDMM1⁄8″)

1-2

ReceiverD

s2ECEIVESYSTEM

SSB/CW/RTTY/AM/FM/DV:

Triple superheterodyne system

WFM:

Double superheterodyne system

s)NTERMEDIATEFREQUENCIES

1st: 124.487 MHz

(SSB/CW/RTTY/AM/FM/DV)

134.732 MHz (WFM)

2nd: 455 kHz

(SSB/CW/RTTY/AM/FM/DV)

10.7 MHz (WFM)

3rd: 36 kHz

(SSB/CW/RTTY/AM/FM/DV)

s3ENSITIVITY

SSB, CW

(10 dB S/N): 0.15 μV (1.80–29.9950 MHz)*1

0.12 μV (50 MHz)*2

0.15 μV (70 MHz)*2

0.11 μV (144/430 MHz)*3

AM (10 dB S/N): 13.0 μV (0.5–1.8 MHz)*1

2.0 μV (1.80–29.9950 MHz)*1

1.0 μV (50/70 MHz)*2

1.0 μV (144/430 MHz)

FM (12 dB SINAD): 0.5 μV (28.0–29.7 MHz)*1

0.25 μV (50/70 MHz)*2

0.18 μV (144/430 MHz)*3

WFM (12 dB SINAD): 10.0 μV (76–108 MHz)*3

DV (1% BER): 1.0 μV (28.0–29.7 MHz)*1

0.63 μV (50/70 MHz)*2

0.35 μV (144/430 MHz)*3

*1Preamp 1 is ON, *2Preamp 2 is ON, *3Preamp is ON

s3QUELCHSENSITIVITY

&REQUENCYBAND 3QUELCHSENSITIVITY

HF*1SSB : Less than 5.6 μV

FM : Less than 0.3 μV

50/70 MHz*2SSB : Less than 5.6 μV

FM : Less than 0.3 μV

144/430 MHz*3SSB : Less than 5.6 μV

FM : Less than 0.3 μV

*1Preamp 1 is ON, *2Preamp 2 is ON, *3Preamp is ON

s3ELECTIVITY)&lLTERSHAPEISSETTO3(!20

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

s3PURIOUSANDIMAGEREJECTIONRATIO

HF band: More than 70 dB

50/70 MHz bands*: More than 70 dB

*except 1/2 IF through on 50/70 MHz

bands

144/430 MHz bands*: More than 65 dB

*except IF through on 144 MHz

band

s!&OUTPUTPOWER  -ORETHAN7AT

distortion with an 8 øload

s!&OUTPUTIMPEDANCE  ø

s2)4VARIABLERANGE  ÒK(Z

s0(/.%3CONNECTOR  CONDUCTORDMM1⁄8″)

s%XTERNAL30CONNECTOR  CONDUCTORDMM1⁄8″)/

8 ø

s$30!.&ATTENUATION  -ORETHAND"

(with 1 kHz single tone)

s$30-.&ATTENUATION  -ORETHAND"

s$30.2ATTENUATION  -ORETHAND"

(noise rejection in SSB)

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

2-1

SECTION 2

INSIDE VIEWS

• DISPLAY UNIT

(TOP VIEW)

AF MUTE SW

(Q403)

FRONT CPU CLOCK

(X201)

DC-DC CONVERTER

(IC701)

AF MUTE SW

(Q404)

KEY BACKLIT DRIVER

(IC601)

LED DRIVER

(IC901)

2-2

• DISPLAY UNIT

(BOTTOM VIEW)

RESET IC

(IC202)

CURRENT LIMITTER

(Q501)

CONTROL DATA INTERFACE

(IC501)

EXTERNAL SEND SW

(Q502)

AF OUTPUT CONTROL

(Q401)

FRONT CPU

(IC201)

2-3

DC-DC CONVERTER

CIRCUIT

• MAIN UNIT

USB CODEC

(IC602)

SRAM

(IC6204)

MAIN CPU

(IC6202)

REAL-TIME CLOCK

(IC6201)

DV DSP

(IC5502)

IF DSP

(IC5001)

EXPANDER

(IC7004)

EXPANDER

(IC7002)

+8 V REGULATOR

(IC161)

DRIVE CURRENT

BUFFER

(IC12)

1ST LO AMP

(IC2401)

ALC CONTROLLER

(IC1502)

S-METER AMP

(IC1501)

2ND RX IF FILER

(FI4602)

2ND RX IF FILER

(FI4601)

1ST DDS CLOCK FILTER

(FI2151)

EXPANDER

(IC7001) EXPANDER

(FI4101)

AF LPF

(IC5083)

+8 V REGULATOR

(IC51)

MAIN CPU CLOCK

(X6202)

USB HUB CLOCK

(X511)

AGC AMP

(IC5091)

+1.3 V REGULATOR

(IC5501)

1/2 DIVIDER

(IC5052)

SUB CPU CLOCK

(X6401)

CODEC

(IC5071)

D/A CONVERTER

(IC5072)

SUB CPU

(IC6401)

EXPANDER

(IC7005)

3RD RX/TX IF SWITCH

(IC4502)

3RD RX/TX IF SWITCH

(IC4503)

EXPANDER

(IC7003)

USB CODEC

(IC602)

USB HUB

(IC511)

DATA LINE LEVEL CONVERTER

(IC11)

2-4

• PA UNIT

144 MHz/430 MHz BAND

TX POWER DETECT BUFFER

(IC651)

DRIVE AMP

(Q251)

“T8V” LINE CONTROLLER

(Q292)

“14V” LINE SWITCH

(Q391)

SERIAL TO PARALLEL

CONVERTER

(IC751)

“T8V” LINE SWITCH

(Q492)

TX POWER AMP

(Q301)

TX POWER AMP

(Q302)

HF/50 MHz/70 MHz BAND

TX POWER DETECT BUFFER

(IC960)

3-1

• RF CIRCUITS

• LPF TABLE

SECTION 3

CIRCUIT DESCRIPTION

3-1 RECEIVER CIRCUITS

RF CIRCUIT (PA UNIT)

• While operating on the HF, 50 MHz and 70 MHz bands

The RX signal from the antenna connector ([ANT1]: J1) is

passed through the power/SWR detect circuit (D961 and

D962) and one of the LPFs, depending on the operating

band, to remove unwanted out-of-band signals. (See the LPF

TABLE below.)

The ﬁltered RX signal is passed through the TX/RX SW

(RL801) and LPF (L801, L802, C801, C803 and C805) for fur-

ther removal of unwanted signals, and then passed through

the mute SWs (D181 and D182).

When the attenuator is turned ON, the RX signal is passed

through the 18 dB attenuator (

MAIN UNIT: D3082 and D3083).

The RF signal is passed through one of the BPFs, depend-

ing on the operating frequency, to remove unwanted signals.

(See the BPF TABLE on page 3-2.)

The ﬁltered signal is applied to the pre-AMP circuit.

PRE-AMP CIRCUIT (MAIN UNIT)

When the pre-AMP is turned ON, the RX signal is ampliﬁed

by the pre-AMP (Q3201).

The ampliﬁed signal is applied to the 1st RX IF circuits.

LPF

BPF

LPF

“L1”

“L2”

“L3”

“L4”

“L5”

“L6”

“L7”

D961,D962

PWR/SWR

DET

TX/RX

ATT

BPF

TX/RX

LPF

HPF

TX/RX

ANTENNA

LPF

ANTENNA

BPF

LPF PWR/SW R

DET

LPF

MUTE

LPF

ATT

LPF

PRE

AM P

PRE

AM P

BPF

MUT E

144 MHz band

7.3-14.35MHz

430 MHz band

fc=270M

fc=74.8MHz

From the TX circuit

PA UNIT

fc=200M

21.45-33.0MHz

14.35-21.45MHz

fc=700M

144/430MHz

430 MHz

HF/50MHz/70MHz

144 MHz

0.03-2.0MHz

2.0-4.0MHz

4.0-7.3MHz

33.0-74.8MHz

(74.8-200 MHz)

(74.8-200MHz)

D181,D182

Q481 Q451

Q551

D422,423,424 D433,D434 D651,D661

(400-470 MHz)

(400-470MHz)

20dB

LPF

MUT E

D3072

BPF

ATT

BRF

HPF

LPF

“B1”

LPF

PRE

AMP

Q3201

HPF

13.9-20.9MHz

f c=500MHz

1.6-2.0MHz

2.0-3.4MHz

6.9-13.9MHz

3.4-6.9MHz

0.03-1.6MHz

74.8MHz and below

74.8MHz or above

To the 1st RX IF circuit

(74.8MHz and below)

To the 1st RX IF circuit

(74.8MHz or above)

40.0-60.0MHz

1.6-74.8MHz

60.0-74.8MHz

18dB

20.9-40.0MHz

fc=74.8MHz

D3272

“B2”

“B3”

“B4”

“B5”

“B6”

“B7”

“B8”

“B9”

From the

TX circuit

From the

TX circuit

Filter Operating frequency

(MHz)

Filter switches

Components Control line

(Active High)

0.030000 to 1.999999

RL880 RL881 L881, L882 C882 to C886, C888 to C890, C893, C894, C896, C897, C899 L1

2.000000 to 3.999999

RL920 RL921 L921, L922, C922 to C929, C933, C984 L2

4.000000 to 7.300000

RL840 RL841 L841 to L843, C842 to C848, C850, C854 to C859 L3

7.300001 to 14.350000

RL900 RL901 L901 to L903, C902, C907 L4

14.350001 to 21.450000

RL940 RL941 L942, L943, C944 to C947, C950, C953 L5

21.450001 to 32.999999

RL820 RL821 L822, L823, C824 to C828, C833, C835 L6

33.000000 to 74.799999

RL860 RL861 L861 to L863, C863 to C866, C868, C869, C873, C875 to C878 L7

3-2

• BPF TABLE

• While operating on the 144 MHz and 430 MHz bands

The RX signal from the antenna connector ([ANT2]) is passed

through the power/SWR detect circuit (D651 and D661) and

LPF (L591 to L593, C591 and C592).

144 MHz BAND SIGNAL

The RX signal is passed through the LPF (L541 to L543,

C542 to C547) and TX/RX SW (RL531).

When the attenuator is turned ON, the RX signal is also

passed through the 20 dB attenuator (D551 and D552).

The RX signal is then passed through the BPF (MAIN UNIT

: D553 to D556, L552, L553 and C553) and applied to the

pre-AMP (Q551).

The ampliﬁed signal is passed through another BPF (MAIN

UNIT: D557 to D560, L557 and C561), RX mute (D181 and

D182), BPF (MAIN UNIT: D3272, L3271, L3272, C3271 to

C3273) and LPF (L3261 to L3263, C3261 to C3267), and

then applied to the 1st RX IF circuit.

430 MHz BAND SIGNAL

The RX signal is passed through the HPF (L441, L442, C441

to C443), mute SW (D433 and D434) and TX/RX SW (D422

to D424).

When the attenuator is turned ON, the RX signal is also

passed through the 18 dB attenuator (D451 and D452).

The RX signal is then passed through the BPF (MAIN UNIT

: D454, L452 and C454) and applied to the pre-AMP (Q451).

The ampliﬁed signal is passed through the 2-staged BPF

(MAIN UNIT: D455, L453, C468 and D456, L454, C473), and

applied to the RF AMP (Q481).

The ampliﬁed signal is passed through the RX mute (D181

and D182), BPF (D3272, L3271, L3272, C3271 to C3273)

and LPF (L3261 to L3263, C3261 to C3267), and then ap-

plied to the 1st RX IF circuit.

Filter Operating frequency

(MHz)

Filter switches

Components Control line

(Active High)

B0 0.030000 to 1.599999 D3111 D3112 L3112, C3112, C3113, C3115 B0

B1 1.600000 to 1.999999 D3121 D3122 L3103 to L3106, C3102 to C3106 B1

B1 and B2 2.000000 to 3.399999 D3121 D3122 and D3131 D3132