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Icom i703, Service Manual

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Icom i703 Service Manual Download Page 76

BUS LINE1

3

2

1

4

5

3

2

1

4

5

3

2

1

4

5

3

2

1

4

5

3

2

1

4

5

3

2

1

4

5

3

2

1

4

5

3

2

1

4

5

3

2

1

4

5

3

2

1

4

5

3

2

1

4

5

3

2

1

4

5

3

2

1

4

5

3

2

1

4

5

3

2

1

4

5

3

2

1

4

5

3

2

1

4

5

3

2

1

4

5

3

2

1

4

5

3

2

1

4

5

3

2

1

4

5

BUS LINE1

IT8V RL

IT3V

IT8V

IT3V

IT8V

4

8

7

6

5

1

2

3

IC560
NJM2904M

-

+

+

-

b

R571

100

a

C561 10p

L560
LR-391

C562 100p

C564 0.1

C569 330p

R565 47

C563 33p

D560 MA732

D562 MA732

C567 33p

D561 MA732

D563 MA732

R562

4.7k

R567

4.7k

C565
470p

C568
470p

R563

2.7k

R568

2.7k

R564

10k

R569

10k

C566
0.1

R574 68k

R575 33k

R561

100

C560 0.1

R572 33k

R573 33k

R566

100

C570 0.1

R700

1k

R703

1k

R701 47k

R702 47k

Q700
UM5K1N

C701

0.0047

C700

0.0047

L1S_

L1R_

L1S

L1R

R704

1k

R707

1k

L2R

R705 47k

R706 47k

Q701
UM5K1N

L2R_

L2S_

C703

0.0047

L2S

C702

0.0047

L3R

R711

1k

R708

1k

R709 47k

R710 47k

Q702
UM5K1N

L3R_

L3S_

C705

0.0047

L3S

C704

0.0047

L4R

R715

1k

R712

1k

R713 47k

R714 47k

Q703
UM5K1N

L4R_

L4S_

C707

0.0047

L4S

C706

0.0047

L5R

R719

1k

R716

1k

R717 47k

R718 47k

Q704
UM5K1N

L5R_

L5S_

C709

0.0047

L5S

C708

0.0047

L6R

R723

1k

R720

1k

R721 47k

R722 47k

Q705
UM5K1N

L6R_

L6S_

C711

0.0047

L6S

C710

0.0047

L7R

R727

1k

R724

1k

R725 47k

R726 47k

Q706
UM5K1N

L7R_

L7S_

C713

0.0047

L7S

C712

0.0047

L8R

R731

1k

R728

1k

R729 47k

R730 47k

Q707
UM5K1N

L8R_

L8S_

C715

0.0047

L8S

C714

0.0047

L9R

R735

1k

R732

1k

R733 47k

R734 47k

Q708
UM5K1N

L9R_

L9S_

C717

0.0047

L9S

C716

0.0047

CRR

R739

1k

R736

1k

R737 47k

R738 47k

Q709
UM5K1N

CRR_

CRS_

C719

0.0047

CRS

C718

0.0047

R800

1k

R803

1k

CIR

R801 47k

R802 47k

Q800
UM5K1N

CIR_

CIS_

C801

0.0047

CIS

C800

0.0047

R807

1k

C1R

R804

1k

R805 47k

R806 47k

Q801
UM5K1N

C1R_

C1S_

C803

0.0047

C1S

C802

0.0047

R811

1k

C2R

R808

1k

R809 47k

R810 47k

Q802
UM5K1N

C2R_

C2S_

C805

0.0047

C2S

C804

0.0047

R815

1k

C3R

R812

1k

R813 47k

R814 47k

Q803
UM5K1N

C3R_

C3S_

C807

0.0047

C3S

C806

0.0047

R819

1k

C4R

R816

1k

R817 47k

R818 47k

Q804
UM5K1N

C4R_

C4S_

C809

0.0047

C4S

C808

0.0047

R823

1k

C5R

R820

1k

R821 47k

R822 47k

Q805
UM5K1N

C5R_

C5S_

C811

0.0047

C5S

C810

0.0047

R827

1k

C6R

R824

1k

R825 47k

R826 47k

Q806
UM5K1N

C6R_

C6S_

C813

0.0047

C6S

C812

0.0047

R831

1k

C7R

R828

1k

R829 47k

R830 47k

Q807
UM5K1N

C7R_

C7S_

C815

0.0047

C7S

C814

0.0047

R835

1k

C8R

R832

1k

R833 47k

R834 47k

Q808
UM5K1N

C8R_

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

C820

0.0047

C770 22

W753

W754

L761 2.2

µ

R750 39

C751 0.0047

C750 0.0047

D750
DAN202K

L1R_

L1S_

L750 LA-459

W750

RL750 ATX222

W755

W756

L751 LA-460

L762 2.2

µ

L2S_

R751 39

C753 0.0047

L2R_

C752 0.0047

D751
DAN202K

RL751 ATX222

W757

W758

L752 LA-461

L763 2.2

µ

L3S_

R752 39

C755 0.0047

L3R_

C754 0.0047

D752
DAN202K

RL752 ATX222

W759

W760

L753 LA-567

L764 2.2

µ

L4S_

R753 39

C757 0.0047

L4R_

C756 0.0047

D753
DAN202K

RL753 ATX222

W762

W761

L754 LA-568

L765 2.2

µ

L5S_

R754 39

C759 0.0047

L5R_

C758 0.0047

D754
DAN202K

RL754 ATX222

W764

W763

L755 LA-569

L766 2.2

µ

L6S_

R755 39

C761 0.0047

L6R_

C760 0.0047

D755
DAN202K

RL755 ATX222

W766

W765

L756 LA-570

L767 2.2

µ

L7S_

R756 39

C763 0.0047

L7R_

C762 0.0047

D756
DAN202K

RL756 ATX222

W768

W767

L757 LR-428

L768 2.2

µ

L8S_

R757 39

C765 0.0047

L8R_

C764 0.0047

D757
DAN202K

RL757 ATX222

W770

W769

L758 LR-429

L769 2.2

µ

L9S_

R758 39

C767 0.0047

L9R_

C766 0.0047

D758
DAN202K

RL758 ATX222

W772

W771

L770 2.2

µ

CRS_

R759 39

C769 0.0047

CRR_

C768 0.0047

D759
DAN202K

RL759 ATX222

C783       27p

L850 2.2

µ

CIS_

R850 39

C851 0.0047

CIR_

C850 0.0047

D850
DAN202K

RL850 ATX222

RL851 ATX222

D851
DAN202K

C852 0.0047

C1R_

C853 0.0047

R851 39

C1S_

L851 2.2

µ

D852
DAN202K

RL852 ATX222

C854 0.0047

C2R_

C855 0.0047

R852 39

C2S_

L852 2.2

µ

D853
DAN202K

RL853 ATX222

C856 0.0047

C3R_

C857 0.0047

R853 39

C3S_

L853 2.2

µ

D854
DAN202K

RL854 ATX222

C858 0.0047

C4R_

C859 0.0047

R854 39

C4S_

L854 2.2

µ

D855
DAN202K

RL855 ATX222

C860 0.0047

C5R_

C861 0.0047

R855 39

C5S_

L855 2.2

µ

D856
DAN202K

RL856 ATX222

C862 0.0047

C6R_

C863 0.0047

R856 39

C6S_

L856 2.2

µ

D857
DAN202K

RL857 ATX222

C864 0.0047

C7R_

C865 0.0047

R857 39

C7S_

L857 2.2

µ

D858
DAN202K

RL858 ATX222

C866 0.0047

C8R_

C867 0.0047

R858 39

C8S_

L858 2.2

µ

D859
DAN202K

RL859 ATX222

C868 0.0047

C9R_

C869 0.0047

R859 39

C9S_

L859 2.2

µ

D860
DAN202K

RL860 ATX222

C870 0.0047

C0R_

C871 0.0047

R860 39

C0S_

L860 2.2

µ

C872 9p

C873 18p

C874 36p

C876
150p

C877 150p

C881 0.001

C875
150p

C878 150p

C882 150p

C880 220p

C879 330p

C885 0.001

C883 0.001

W870

W871

C891

0.0047

C890

0.0047

L890 EXC-ELDR25C

R675 47k

R674 SA05C

FORL

REFL

W562

PO

-

+

-

+

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

PA
UNIT(3)

PA
UNIT(1)

L1

L2

L3

L4

L5

L6

L7

L8

L9

CR

C2

C1

C3

C4

C5

C6

C7

C8

C9

PA UNIT(2)

PO

PO

ANT

3.1V

10mS or more

8.0V

10mS or more

11 - 10

Summary of Contents for i703

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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