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Icom IC-703 Service Manual Download Page 71

BUS LINE1

R8L

14V

5V

8V

T8L
T8V

R8V

BUS LINE3

3V

VCC2
IN+
IN-
OUT
GND

VCC

VCAOUT

CTL

VCAIN

NC

IC1601
M5282FP

1
2
3
4
5

6

7

8

9

10

IC1602
TC4W53F

5

6

7

8

1

2

3

4

COMS

R1611
47k

C1606

0.1

C1607

1

C1608

10

R1606

47k

C1610

10

MIGV

C1609
0.1

R1609
6.8k

AMOD

C1611

1

R1610

4.7k

VDD

X2

X1

X

X0

X3

A

B

Y0

Y2

Y

Y3

Y1

INH

VEE

VSS

1

2

3

4

5

6

7

89

10

11

12

13

14

15

16

IC1701
BU4052BCF

R1704        470k
R1705        470k

R1703        470k

R1702        470k

R1701        470k

C1701

10

R1707

47k

C1702

0.1

R1706

47k

C1703

0.47

DIN

MODS

D96S

R1708 4.7k

R1709 47k

Q1701
DTC114EE

C1721
1

R1721
100k

Q1721
2SC4081

R1722

220

R1725

820

R1724

1.5k

IC1751
TC4W53F

AMS

R1751
2.2k

C1752

0.0047

MINH

C1809

1

W1801

Q1803
2SK3018

W1813

R1811
RV-156

R1816

47k

R1815

1k

C1801
2.2

R1802

4.7k

R1818
470

R1803
EVM-3Y

R1804

4.7k

D1801

MA2S111

LO1
VCC
RF2
RF1

LO2

GND

IF2
IF1

IC1801
TA4107F

1
2
3
4

8
7
6
5

R1805
100

C1802
0.1

BFO

R1806

2.2k

R1807

RV-143

R1808
2.2k

D1802
1SS372

C1805

0.1

L1801
100

µ

L1802

2.2M

C1806

0.1

C1807

10

R1809
2.2k

R1819
680

C1808
0.1

R1817

100k

L1803
100

µ

a

R1810
10k

Q1801
DTC114EE

IC1901
TA4101F

1

2

3

4

5
6
7
8

BASE
BASE
GND
COLECT

BASE

OSCIN

VCC

IFOUT

C1904

0.1

C1903

0.1

C1902
100p

b c

C1901

0.1

R1901

100

SSAF

R1903

27k

C1906

10

C1907

0.1

C1908

0.1

R1902
100

C1905
0.1

C1909

0.1

C1910

10

BUS LINE1

R8L

14V

5V

8V

T8L
T8V

C2001

0.0047

D2001

RB876W

R2001
1k

R2003

56k

C2003

0.0047

R2005
1k

C2002

0.1

R2002

100k

R2004

47

C2004

0.0047

R2006

47k

R2007

10k

C2005
3.3

AMAF

Q2102
2SK3018

R2106

47k

R2105
1k

Q2101
DTA114EE

FMS

L2101

100

µ

C2103

10

C2104

0.1

IC2101
TA31136FN

1
2
3
4
5
6
7
8

9

10

11

12

13

14

15

16

OSCIN
OSCOUT
MIXOUT
VDD
IFIN
BIAS
FILOUT
FILIN

AFOUT

QUADIN

IFOUT

SOUT

NDET

NOUT

VSS

MIXIN

C2101

0.1

C2106

220p

R2101
150k

C2105

220p

R2102

15k

C2102
0.1

R2103
330k

C2107
0.01

FDET

NSQL

C2109
0.1

C2151

0.1

R2151       10k

C2152
0.01

C2110
100p

X2101

CDBC455CX24

R2104

3.3k

Q2103
DTA114EU

R2152
39k

R2153
0.01

R2154

150k

-
+

9

10

8

R2155

10k

IC2401
NJM2902M

FMAF

C2154

0.1

Q2104
2SK3018

R2108

47k

2NTH

R2109

1k

R1621
10k

R1622

6.8k

C1621

0.039

-
+

2

1

3

IC1621
NJM2902M

R1623
100k

R1624

10k

R1625

15k

COMI

COMV

C1645

0.1

R1649

100k

R1646
150k

IC1621
NJM2902M

5

7

6

+

-

R1644

100k

C1647

0.1

R1650

100k

C1641

1

R1641
10k

R1642

56

C1642

0.1

R1643
10k

C1646

0.1

R1648
100k

D1641
DA221

D1642
DA221

C1622

0.1

V+

GND

4

11

IC1621
NJM2902M

R2202

18k

C2201

0.1

R2201

15k

R2203

100k

C2202

0.1

R2204

100k

-
+

9

8

10

IC2201
NJM2058M

R2206
220k

R2205

100k

C2203

0.1

R2207
1k

D2221

1SS385

C2221

0.1

R2221
100k

C2222

0.1

R2222

100k

R2224

100k

-
+

13

14

12

IC2201
NJM2058M

R2223

150k

R2208

1k

R2209

1k

OVDK

V+

GND

4

11

IC2201
NJM2058M

C2204 0.1

VDD

IC2301
BU4052BCF

2

1

3

X2

X1

X

X0

X3

A

B

Y0

Y2

Y

Y3

Y1

INH

VEE

VSS

4

5

6

7

89

10

11

12

13

14

15

16

C2302

0.1

R2302

10k

C2301

10

R2306        27k

R2305        470k

R2304        47k

R2303        15k

AMAF

FMAF

SSAF

SQL

AFS2

AFS1

R2401
10k

R2402
10k

C2401
0.0047

-
+

2

1

3

IC2401
NJM2902M

R2403

47k

C2403
10

R2404

100k

Q2451
2SK3018

R2453
1k

k

DSTB

Q2452
2SK3018

l

DINT

R2452
1k

Q2454
2SK3018

j

MDT

R2454
1k

Q2455
2SK3018

i

MCK

R2455
1k

DSPS

o

-
+

9

8

10

IC1621
NJM2902M

R1663 470k

C1662 100p

R1662

4.7k

C1661

0.1

R1661
10k

W1661

C1601

1

MIC

R1601
1k

R1602
220

C1602

10

R1667

100k

R1665

10k

C1663

0.1

R1664

6.8k

VOXL

C1681

1

-
+

13

14

12

IC1621
NJM2902M

R1686 100k

C1682
470p

R1683
2.2k

R2601

15k

R2602

18k

R2603

47k

C2601

0.1

C2602

0.1

R2604
100k

-
+

6

7

5

IC2201
NJM2058M

R2606

270

C2604

0.1

R2607 150k

R2608
150k

R2611

150k

R2610

270k

R2612

390k

C2606

0.001

R2613
82k

C2607
0.0022

R2614
82k

-
+

2

1

3

IC2201
NJM2058M

C2608

120p

R2615
1.2k

Q2601
2SK3018

2N80

R2624

47k

R2623
1k

R2626

NTCG16

R2616

1k

R2625

3.3k

R2617

6.8k

R2618

RV-109

1

2

3

4

5

6

7

8

R2619

560

R2620
22k

R2622

27k

R2621

RV-148

C2652
1

R2651

100k

C2605
0.1

R2609
220k

TONE

FMS

5

6

7

8

1

2

3

4

IC2651
TC4W53F

C2651

0.1

R2652

100k

FMOD

RXS

POCV

R2702

10k

R2704
56k

HFS

Q2701
DTC114EE

R2705

RV-156

50MS

Q2702
DTC114EE

R2706

RV-156

FORL

R2707

RV-156

Q2703
2SK3018

R2724

47k

R2723
1k

C2704

0.1

R2725
1k

R2726

47k

Q2704
2SK3018

-
+

2

1

3

IC2701
NJM2902M

CP2711

R2709

47k

R2710
100k

C2701
22p

R2711
1M

R2712
2.2M

D2704
MA2S111

C2702 10

R2714
470

R2713
330

D2705

DAP222

IDS

R2722

10k

R2721

22k

R2742

10k

R2741

100k

C2705

0.1

Q2705
2SK3018

R2728

47k

R2727

1k

R2729
100k

R2743

100k

IC2701
NJM2902M

5

7

6

+

-

R2744
1M

R2745
470

REFL

D2741

DAP222

10

8

IC2701
NJM2902M

9

+

-

R2762
2.2M

R2761
470

R2764

33k

R2765
RV-150

R2766

33k

R2767
47k

R2768
47k

IDH

IDL

W2782

C2781

1

Q2781
2SA1576

R2786
1k

R2787

10k

R2783
10k

R2781
2.2M

D2781
MA8036

D2782
DAP222

EALC

R2788

100k

12

14

IC2701
NJM2902M

13

+

-

W2785

R2789
470

ALCL

p

BUS LINE3

3V

IC2701
NJM2902M

V+

GND

4

11

C2791

0.1

MAIN

UNIT

(2)

MAIN

UNIT

(4)

MICE

W1601

R1607

1k

R1723

1k

C1722

1

C1751

0.1

R1820
100

Q1802
DTA114EE

L1901

100

µ

R2107
3.3k

R2153 150k

R2301

10k

R1645

100k

R1647
100k

C2402

0.0022

e

R1684

10k

R1666
100k

C1664

0.1

R1668

47k

MAIN UNIT(3)

5V

8V

T8V

5V

8V

5V

14V

T8L
T8V
8V
R8L

5V

8V

8V

8V

5V

8V

8V

3V

8V

R2708
220k

AMS

R7305 100k

FMS

T8V

8V

5V

T8L

5V

5V

T8V

C1723
1

AMS

R1812

NTCG16

8V

5V

5V

8V

BFO

BFO

R8V

8V
5V

8V

8V

8V

5V

8V

FMS

8V

3V

8V

8V

8V

8V

OTHER MODE: 0V

   FM MODE: 3.1V

11 - 4

Summary of Contents for IC-703

Page 1: ...HF 50MHz ALL MODE TRANSCEIVER i703 SERVICE MANUAL...

Page 2: ...de back cover for your convenience REPAIR NOTES 1 Make sure a problem is internal before disassembling the transceiver 2 DO NOT open the transceiver until the transceiver is disconnected from its powe...

Page 3: ...4 1 4 2 PLL ADJUSTMENTS 4 2 4 3 TRANSMITTER ADJUSTMENTS 4 4 4 4 RECEIVER ADJUSTMENTS 4 8 4 5 SET MODE ADJUSTMENTS No 1 4 10 4 6 PA UNIT ADJUSTMENTS 4 12 4 7 SET MODE ADJUSTMENTS No 2 4 14 SECTION 5 P...

Page 4: ...odulation AM Low level modulation FM Variable reactance modulation Spurious emissions Below 30 MHz Less than 50 dB Above 30 MHz Less than 60 dB Carrier suppression More than 40 dB Unwanted sideband su...

Page 5: ...SC4081 LCD driver IC2 SED1522F0C VR board Back light dimmer Q2 2SB1132 Q3 2SC4081 Key dimmer Q13 2SB1132 Q14 2SC4081 PA UNIT Expand IC IC600 ISPLSI2064VE Buffer IC560 NJM2904M Comparator IC640 TA75393...

Page 6: ...rter IC6501 M62364FP Balanced modulator IC1801 TA4107F Automatic gain control circuit YGR amplifier IC101 PC2709T 1st mixer D701 HSB88WS 1st IF amplifier Q811 2SK508 1st IF filter FI851 FL 348 2nd mix...

Page 7: ...ER CIRCUIT MAIN UNIT The 1st mixer circuit mixes the receive signals with the 1st LO signal to convert the receive signal frequencies to a 64 455 MHz 1st IF signal The signals from the preamplifier ci...

Page 8: ...right column via the Tx Rx switch D1402 The filtered or bypassed signals are applied to the 2 ampli fiers Q1101 Q1201 and buffer amplifier Q1251 to obtain a detectable level at the demodulator circuit...

Page 9: ...reshold level set by the RF SQL control The RF SQL setting is picked up at the sub CPU DISPLAY board IC6 pin 97 The main CPU compares the S meter signal and RF SQL setting and controls the AF selector...

Page 10: ...n 8 The resulting signals from pin 9 are then applied to the buffer amplifier Q1721 via the analog switch IC1701 External modulation input from the ACC socket J6951 pin 11 is also applied to Q1721 Whi...

Page 11: ...F circuit amplifies the displayed frequency signal to obtain 10 W of RF output power for HF 50 MHz bands The HF 50 MHz RF signals from the 1st mixer D701 via the low pass filter pass through one of 8...

Page 12: ...fier IC2701 and applied to the ALC circuit as the reference voltage For the current APC the driving current at the power ampli fier is detected in the voltages IDH and IDL which appear at both termina...

Page 13: ...ers and is then applied to the 1st mixer D701 as a 1st LO signal 3 3 3 2ND LO AND REFERENCE OSCILLATOR CIRCUITS MAIN UNIT The reference oscillator IC9601 Q9621 X9501 generates a 64 MHz frequency used...

Page 14: ...l passes through the C646 to shift the its phase for 90 degrees The signal is applied to the phase detecting circuit L640 The output side signal is applied to the amplifiers Q643 Q811 The amplified si...

Page 15: ...5 regulator circuit IC5 Q10 Q11 D9 The out put voltage is applied to the SUB CPU IC6 LCD driver IC2 etc Line 8V 5V 3 5 3 VOLTAGE LINES DISPLAY BOARD 1 2 3 4 5 8 9 16 18 19 20 21 22 23 25 26 27 28 31...

Page 16: ...signal High While the speech compressor is ON Outputs 9600 bps packet mode control signal High While 9600bps packet mode is ON Outputs optional DSP unit control sig nal High While the DSP unit is ON...

Page 17: ...the phone plug is insert ed Input port for the RIT SUB key Input port for the main dial s A phase signal Input port for the main dial s B phase signal Input port for the sub dial s A phase signal Out...

Page 18: ...0 100 MHz Measuring range 0 to 5 kHz Frequency range At least 100 MHz Measuring range 0 100 Frequency range 1 kHz 10 Measuring range 1 100 Frequency range DC 100 MHz Measuring range 0 01 10 V Imput im...

Page 19: ...ay frequency 29 99999 MHz Mode USB Receiving Display frequency 60 00000 MHz Mode USB Receiving MAIN MAIN MAIN Connect an RF volt meter to check point CP9611 Connect a frequency counter to check point...

Page 20: ...ce frequency adjustment Reference frequency check point R9552 VCO2 lock voltage adjustment C9252 VCO1 lock voltage adjustment C9202 VCO1 and VCO2 lock voltage check point CP9151 CP9671 CP9611 MAIN UNI...

Page 21: ...nd set as 1 5 kHz 3 mV Transmitting Display frequency 14 10000 MHz Mode USB MIC GAIN 5 Connect an audio generator to MIC connector and set as 1 5 kHz 30 mV Transmitting Display frequency 52 00000 MHz...

Page 22: ...5 Transmit total gain adjustment R833 Id APC adjustment R2765 Transmit peak power adjustment R1203 R1203 Carrier suppression adjustment R1807 R1803 Output power adjustment R2705 R2706 MAIN UNIT TOP VI...

Page 23: ...k position Connect an audio generator to MIC connector and set as 1 kHz 30 mV Transmitting Display frequency 14 10000 MHz Mode CW RF POWER H KEY SPEED 60 BRK BK semi break in CW paddle n Connect an RF...

Page 24: ...4 7 FM deviation adjustment R2621 AM modulation adjustment R1811 R2618 R2707 CW carrier level adjustment R1853 MAIN UNIT TOP VIEW...

Page 25: ...FF Set an SSG as Frequency 14 15150 MHz Level 500 V 53 dBm and OFF Modulation OFF Receiving Display freq 14 15000 MHz Mode USB P AMP ATT Preamp ON NB ON Connect an SSG to the ANT con nector and set as...

Page 26: ...4 9 Receiver peak adjustment L1101 L1102 L1201 Receiver total gain adjustment R1203 Noise blanker adjustment L1052 L1053 L882 L881 MAIN UNIT TOP VIEW...

Page 27: ...PTT switch Transmit using an external PTT switch 1 1 2 3 1 1 2 3 4 5 6 1 2 3 4 5 6 S0 LEVEL S9 LEVEL 60dB LEVEL GO FILTER CAL CHK 10 W SET 5 W SET 2 5 W SET 1 W SET 0 5 W SET POmin CHK 10 W SET 5 W SE...

Page 28: ...smit using an external PTT switch Transmit using an external PTT switch Connect a 50 dummy load or power meter to ANT connector Connect a 50 dummy load or power meter to ANT connector 1 2 1 2 Push and...

Page 29: ...o ground Connect an audio generator to MIC connector and set as 1 5 kHz 30 mV Transmitting Transmitting PA Rear Panel PA Connect a digital multimeter to check point CP151 Connect a DC ammeter between...

Page 30: ...4 13 Idling current adjustment R159 R164 SWR detection check point CP41 SWR detection adjustment C561 J640 J642 J641 Antenna tuner adjustment plug replacement point PA UNIT TOP VIEW...

Page 31: ...to the following set ting or push UP DN to scroll the display Push MENU GO to set adjust ment value Push MENU GO to set adjust ment value Push MENU GO to set adjust ment value USB NOTE In case of not...

Page 32: ...SISTOR ERJ3GEYJ 471 V 470 R3 7030003400 S RESISTOR ERJ3GEYJ 471 V 470 R4 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 k R5 7030003340 S RESISTOR ERJ3GEYJ 151 V 150 R6 7030003440 S RESISTOR ERJ3GEYJ 102 V 1...

Page 33: ...YJ 821 V 820 R141 7030003430 S RESISTOR ERJ3GEYJ 821 V 820 R143 7030003800 S RESISTOR ERJ3GEYJ 105 V 1 M C1 4030006880 S CERAMIC C1608 JB 1H 472K T C2 4030006880 S CERAMIC C1608 JB 1H 472K T C4 403000...

Page 34: ...501 1160000070 S DIODE DAN202K T146 D520 1160000070 S DIODE DAN202K T146 A only D521 1160000070 S DIODE DAN202K T146 A only D560 1750000950 S DIODE MA732 TX D561 1750000950 S DIODE MA732 TX D562 17500...

Page 35: ...0 7030010820 S RESISTOR ERJ1TYJ 221U 220 R211 7030010820 S RESISTOR ERJ1TYJ 221U 220 R213 7030003500 S RESISTOR ERJ3GEYJ 332 V 3 3 k R214 7030003500 S RESISTOR ERJ3GEYJ 332 V 3 3 k R216 7030010810 S R...

Page 36: ...S RESISTOR ERJ3GEYJ 274 V 270 k R682 7030003610 S RESISTOR ERJ3GEYJ 273 V 27 k R683 7030003280 S RESISTOR ERJ3GEYJ 470 V 47 R684 7030003770 S RESISTOR ERJ3GEYJ 564 V 560 k R685 7030003440 S RESISTOR...

Page 37: ...4030006880 S CERAMIC C1608 JB 1H 472K T C83 4030011600 S CERAMIC C1608 JB 1E 104K T C84 4510004590 ELECTROLYTIC 16 MV 470 HC C85 4030011600 S CERAMIC C1608 JB 1E 104K T C86 4030006880 S CERAMIC C1608...

Page 38: ...8 JB 1H 472K T A only C533 4030006880 S CERAMIC C1608 JB 1H 472K T A only C534 4030006880 S CERAMIC C1608 JB 1H 472K T A only C540 4030011600 S CERAMIC C1608 JB 1E 104K T C541 4030011600 S CERAMIC C16...

Page 39: ...880 S CERAMIC C1608 JB 1H 472K T C866 4030006880 S CERAMIC C1608 JB 1H 472K T C867 4030006880 S CERAMIC C1608 JB 1H 472K T C868 4030006880 S CERAMIC C1608 JB 1H 472K T C869 4030006880 S CERAMIC C1608...

Page 40: ...1 1130003830 S IC TC7S04F TE85R IC5851 1130010520 S IC SN74HCT244APWR IC5901 1140011200 S IC M30620FCMGP IC5961 1130011210 S IC CAT24WC64J TE13 IC5981 1110005820 S IC R3112N281A TR IC6101 1130007700 S...

Page 41: ...03220 S TRANSISTOR 2SC4406 4 TL Q9401 1590001870 S TRANSISTOR DTA114EE TL A only Q9600 1560001260 S FET 2SK3018 T106 Q9621 1560000330 S FET 2SK210 GR TE85R Q9651 1530003150 S TRANSISTOR 2SC4673D TD Q9...

Page 42: ...018T R15J A only L526 6200005010 S COIL NL 252018T 100J A only L541 6200003240 S COIL NL 322522T 221J L542 6200003240 S COIL NL 322522T 221J L551 6200003260 S COIL NL 322522T 101J L552 6200002000 S CO...

Page 43: ...0 S RESISTOR ERJ3GEYJ 391 V 390 A only R502 7030003280 S RESISTOR ERJ3GEYJ 470 V 47 A only R503 7030004050 S RESISTOR ERJ3GEYJ 1R0 V 1 A only R504 7030003280 S RESISTOR ERJ3GEYJ 470 V 47 A only R505 7...

Page 44: ...00 R1344 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 k R1361 7030003500 S RESISTOR ERJ3GEYJ 332 V 3 3 k R1362 7030003640 S RESISTOR ERJ3GEYJ 473 V 47 k R1363 7030003320 S RESISTOR ERJ3GEYJ 101 V 100 R1364...

Page 45: ...03440 S RESISTOR ERJ3GEYJ 102 V 1 k R2453 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 k R2454 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 k R2455 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 k R2456 7030003440 S RESI...

Page 46: ...03440 S RESISTOR ERJ3GEYJ 102 V 1 k R5807 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 k R5812 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 k R5814 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 k R5815 7030003440 S RESI...

Page 47: ...1 7030003720 S RESISTOR ERJ3GEYJ 224 V 220 k R9053 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 k R9054 7030003320 S RESISTOR ERJ3GEYJ 101 V 100 R9101 7030003800 S RESISTOR ERJ3GEYJ 105 V 1 M R9102 70300034...

Page 48: ...C593 4030007150 S CERAMIC C1608 CH 1H 151J T C594 4030007140 S CERAMIC C1608 CH 1H 121J T C595 4030011340 S CERAMIC C1608 CH 1H 471J T C596 4030007170 S CERAMIC C1608 CH 1H 221J T C601 4030006880 S CE...

Page 49: ...40 S CERAMIC C1608 CH 1H 471J T C1701 4510004630 S ELECTROLYTIC ECEV1CA100SR C1702 4030011600 S CERAMIC C1608 JB 1E 104K T C1703 4030012610 S CERAMIC C2012 JB 1C 474K T C1721 4510004440 S ELECTROLYTIC...

Page 50: ...30006880 S CERAMIC C1608 JB 1H 472K T C6703 4030006880 S CERAMIC C1608 JB 1H 472K T C6704 4030006880 S CERAMIC C1608 JB 1H 472K T C6751 4030006880 S CERAMIC C1608 JB 1H 472K T C6752 4030006880 S CERAM...

Page 51: ...0004630 S ELECTROLYTIC ECEV1CA100SR C9502 4030011600 S CERAMIC C1608 JB 1E 104K T C9503 4030006880 S CERAMIC C1608 JB 1H 472K T C9504 4030006880 S CERAMIC C1608 JB 1H 472K T C9521 4030006980 S CERAMIC...

Page 52: ...THER SX2591 Shield B 1 MA EP2 0910055866 PCB B 5904F EP101 6910012350 S BEAD MMZ1608Y 102BT EP801 6910012350 S BEAD MMZ1608Y 102BT EP812 6910012350 S BEAD MMZ1608Y 102BT EP831 6910012350 S BEAD MMZ160...

Page 53: ...33 8510015060 2591 shield plate 1 MP35 8930060140 Sheet CI 1 MP36 8930060140 Sheet CI 1 MP38 8930060310 Shield tape P 1 MP39 8930060300 Shield tape O 1 MP40 8930060290 Shield tape N 1 CHASSIS UNIT ORD...

Page 54: ...9702 8930059930 Sponge HG 1 MP9703 8930045530 Magic tape F 1 MP9704 8930060170 Rubber sheet BE 1 MP9705 8930060180 Rubber sheet BF 1 MP9961 8510015390 2591 reg plate 1 MAIN UNIT ORDER NO REF NO DESCRI...

Page 55: ...T RF SQL CH VFO A PO S1 5 5 3 7 9 20 40 10 60dB USB M1 SPL A B A B MP25 C MP20 C MP4 C MP12 C MP14 C J1 C MP8 C MP18 F MP12 F MP21 F MP11 C MP11 C MP22 C MP28 C J2 D MP10 C MP26 F MP11 F MP3 F MP24 C...

Page 56: ......

Page 57: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 13912HZ C1 C 2003 Icom Inc...

Page 58: ...D MP3 F DS4 D EP7 D DS5 D J2 D R2 VR W1 F MP15 F MP7 F VR BOARD R1 VR S1 VR SP1 C MP21 C MP29 C MP9700 M MP9625 M MP9624 M MP30 C MP9701 M MP9702 M MP5901 M WS1 M MP701 M MP9621 M MP15 C MAIN UNIT PA...

Page 59: ...E Symbol UW Symbol UV Symbol KD Symbol 14 Symbol 14 Symbol 24 Symbol JA Symbol K2 Symbol RD07MVS1 Symbol K1 Symbol 9U Symbol 3X B C E B C E B C E B C E B E C B E C B E C B E C B C E D G S S D G D G S...

Page 60: ...ARD LAYOUTS 8 1 DISPLAY BOARD TOP VIEW POWER P AMP ATT TUNER CALL RIT SUB MENU F 1 F 2 F 3 PHONES LOCK DISPLAY TS MODE LRXD 1 7 2 8 to MAIN unit J5101 J1 LTXD 8V AFO GND MIC MICE PWRK 8 1 8 2 JACK BOA...

Page 61: ...J1 U D AF PTT MICEL MICL GND SQLS DN 1 to VR board J1 13 2 12 J3 AFL SQL AFV UP SFT GND AFL AF AF AFS AFS 5V PWRK to DISPLAY board MICE MIC GND AFO 8V LTXD LRXD AF RF SQL M CH SHIFT SPEAKER PHONES 13...

Page 62: ...DRES MDT3 TDTS IDL GND LRXD 7 1 8 to JACK board J1 2 J5101 LTXD 8V AFO GND MIC MICE PWRK DRES 10 2 to UT 106 9 1 J2453 DSTB MCK DSPS GND DINT MDT 5V GND GND MSST 1 7 2 to Optional unit UT 102 8 J7121...

Page 63: ...1 8 16 9 1 10 6 1 5 7 14 8 1 4 8 5 1 1 1 1 8 16 9 1 1 1 7 14 8 8 16 9 7 14 8 7 14 8 7 14 8 7 14 8 1 1 4 8 5 8 4 1 5 7 14 8 6 10 5 1 8 16 9 1 1 7 14 8 1 12 24 13 16 9 1 8 BOTTOM VIEW MAIN UNIT 8 4...

Page 64: ...unit J1 RX P4 P5 ANT CHASSIS J1 GND 1 17 2 18 to MAIN unit J6751 J41 TSWL TPHK REFL GND MCK3 PWRS TOE IDH TGK TPZS TPZL FORL DRES MDT3 TDTS IDL GND START 1 17 2 18 to MAIN unit J6701 J1 TPWR POWS GND...

Page 65: ...BOTTOM VIEW PA UNIT 8 6...

Page 66: ...VCO REG P8V IC9681 TA78L05F 2nd PLL REG Q9681 2SC4081 2nd VCO REG 8V PSS DIN AMP IC2201 NJM2058M AMP IC2201 NJM2058M DET D2221 1SS385 Q6201 DTC114EE SW UNLK Q9801 XP4311 D9801 DAP222 SW UNLK Q6342 2SB...

Page 67: ...72 J7121 J6751 J6801 8V MUDL AFO SEND MICE MIC SQLS 6 4 2 1 3 5 J6851 CIV NC CIVE J6901 DASK J6921 DOTK GND 4 3 2 1 8 7 6 5 12 11 10 9 13 J6951 DATA to microphone REMOTE KEY ACC EXT SP SEND BDT ISPO E...

Page 68: ...ATTD TUND SUBD RITD Q18 XP4111 R5 150 Q1 DTC114EE C33 0 0047 R30 1k C32 0 0047 C31 0 0047 W1 C7 0 0047 L1 100 D5 MA2S111 D6 MA2S111 R42 1k R46 2 2k R44 3 3k R47 47k R45 3 3k C8 0 0047 C9 0 0047 D7 DA...

Page 69: ...R416 47k R412 1k PRES Q415 2SK3018 TXH TXL Q411 DTA114EE R415 47k Q414 2SK3018 Q410 DTA114EE R414 47k R410 1k R411 1k PROL PROS 3V 3V 14V 5V C510 39p C511 0 0047 R505 270 L508 10 D502 MA77 D601 MA77...

Page 70: ...7k C1321 0 1 O I FI1301 FL 65 R1323 100 C1322 0 1 R1324 10k D1311 MA77 R1006 680 NBLV C1341 0 1 D1305 MA77 R1341 10k FI1341 CFWS455G C1342 0 1 2F80 R1342 47k R1343 100 I O R1344 10k D1313 MA77 C1361 0...

Page 71: ...1k D2221 1SS385 C2221 0 1 R2221 100k C2222 0 1 R2222 100k R2224 100k 13 14 12 IC2201 NJM2058M R2223 150k R2208 1k R2209 1k OVDK V GND 4 11 IC2201 NJM2058M C2204 0 1 VDD IC2301 BU4052BCF 2 1 3 X2 X1 X...

Page 72: ...010 1k R6012 1k R6013 1k C6001 0 0047 R6002 47k C6006 0 0047 C6008 0 0047 C6007 0 0047 R6005 10k D6001 MA2S111 B0 B5 B6 B7T B7R C6101 0 1 R6151 1k C6151 0 0047 DRES PCK PDT PMST PDST PBST _P2ST UNLK P...

Page 73: ...02 12p C9401 27p C9403 33p L9403 68n C9404 4p C9407 68p C9408 120p L9404 0 22 C9405 18p C9409 68p R9403 18 R9402 270 R9404 270 1LO C9681 10 R9681 10k IC9681 TA78L05F C9682 10 C9683 0 1 C9684 0 1 C9685...

Page 74: ...OTK EP6922 EP6921 C6851 0 001 C6852 0 001 C6853 0 001 C6854 0 001 C6855 0 001 Q6851 2SK3018 R6853 47k R6852 1k SQSS DOUT AFO DIN C6856 1 C6962 1 AAF 4 3 2 1 8 7 6 5 12 11 10 9 13 J6951 L6953 BM27 400...

Page 75: ...00p D520 DAN202K D521 DAN202K C502 27p C513 0 0047 C506 18p RL501 ATX222 C511 0 0047 C505 68p C512 0 0047 L501 LR 426 L500 LR 426 C510 0 0047 C507 68p D500 DAN202K W500 W501 RL500 ATX222 D501 DAN202K...

Page 76: ...8R_ C8S_ C817 0 0047 C8S C816 0 0047 R839 1k C9R R836 1k R837 47k R838 47k Q809 UM5K1N C9R_ C9S_ C819 0 0047 C9S C818 0 0047 R843 1k C0R R840 1k R841 47k R842 47k Q810 UM5K1N C0R_ C0S_ C821 0 0047 C0S...

Page 77: ...D641 1SS355 RL640 AHY107 C643 0 0047 Q640 2SK3018 R681 270k C669 0 001 R680 10k C671 0 1 C670 0 001 R679 270k R678 10k Q642 2SK3018 C645 0 0047 D647 1SS355 C661 0 0047 RL641 AHY107 W644 L645 10 C664 0...

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