Icom IC-M504 Service Manual Download

Page: 33 / 35

VOLTAGE LINE

Explanatory notes

TX LINE

RX LINE

COMMON LINE

100k

R203

1.0

L67

R624

3.3k

R201

100k

R172

0.1

C502

0.001

C136

R81

8.2k

R42

0.01

C561

100k

R386

0.001

C123

33p

C185

1.5p

C45

80n

MA77

D22

C181

0.01

C119

50n

L71

470p

C31

27p

C625

Q61
3SK292

0.001

C622

33k

R26

R21

470p

C380

0.001

C504

10k

R111

470

R544

0.001

C219

47n

L65

10k

R210

R523

0.022

C523

V214E

D28

R153

0.001

C220

2.2k

R154

C393

2SC4226

27p

C35

100k

R171

33k

R28

220p

C503

150p

C42

1.5p

C46

330

R602

0.001

C146

0.47

L37

15p

C614

R611

0.001

C524

1.2

L42

1.5p

C193

0.22

C221

56n

0.01

C191

0.1

C506

MA77

0.001

C133

1.5k

R542

Q59
PMBFJ310

R125

470p

C48

R187

10k

R86

0.01

C22

C402

V214E

D31

8.2k

R328

0.001

C632

0.1

FL-372

FI4B

HVC350B

10p

C566

MA8036

D35

FL-372

FI4A

2.2k

R159

R66

617DB

L41

15p

C56

68k

R32

0.1

C218

R152

820

R212

0.001

FMW1

Q15

0.022

0.1

C215

2.2k

R634

3.3k

R522

220p

C153

470k

R211

0.1

L73

C555

KTC3880S

Q63

Q23
PMBFJ310

0.1

C611

R209

R150

10k

C392

0.001

C514

100k

R532

0.75p

C616

Q21

3SK292

FL-368

FI1

617DB

L55

0.22

C222

10k

R10

0.001

C544

470P

C57

0.01

C26

0.001

C23

R105
10k

0.047

C558

0.1

L76

0.1

C547

27p

C34

0.01

C559

R506

0.68

L64

R501

10k

82k

R126

22k

R27

C27

18p

C565

27p

C129

0.001

C20

0.001

C30

100p

C205

0.001

C548

R151

33k

18p

C563

68k

R52

0.1

C216

47p

C87

47p

C368

MA8036

D41

0.001

C88

3.9

L70

PMBFJ310

Q72

C542

0.22

C601

R144

470p

C24

0.001

C635

V214E

D27

470

R524

470

R31

R606

0.001

C610

0.1

C158

390

R84

0.47

L32

MA77

2SB1201

Q55

470p

C137

0.1

0.001

C145

L43

0.01

C204

0.001

C534

68k

R617

0.22

C552

0.001

C150

0.001

C122

HVC358B

D51

LA-253

L19

33k

R148

0.001

C391

0.001

C529

0.001

C626

33P

C78

100

R44

V214E

D30

V214E

D29

330

R11

22p

C623

C190

TA31136FNG

IC14

OSCIN

OSCOUT

MIXOUT

VCC

IFIN

DEC

FILOUT

FILIN

AFOUT

QUAD

IFOUT

RSSI

N-DET

N-REC

GND

MIXIN

15k

R499

617DB

L56

HVC358B

D52

0.001

C165

0.001

C81

R383

C128

1.0

L68

0.1

C546

0.001

C113

3.5p

C161

0.1

150p

C83

470

R219

47k

R23

HSM88ASR

D13

0.001

C44

0.001

C213

C40

2SC4226

5.6k

R610

3.5p

C164

617DB

L40

2.5p

C174

C520

0.001

C188

V214E

D26

33k

R498

C621

C562

0.1

C160

0.001

C401

470p

C52

680

R616

1.5k

R205

0.001

C89

LA-243

L31

0.001

C36

27p

C624

Q22
PMBFJ310

R182

TA31136FNG

IC2

OSCIN

OSCOUT

MIXOUT

VCC

IFIN

DEC

FILOUT

FILIN

AFOUT

QUAD

IFOUT

RSSI

N-DET

N-REC

GND

MIXIN

KTC3880S

Q24

0.001

C203

R551

10p

C12

R502

33k

0.001

C159

0.001

C55

100p

C379

47n

L12

330

R622

390

R45

0.022

C202

1.5

L45

0.01

C187

C124

0.001

C125

0.001

C166

47k

R327

560

R41

12p

C173

0.001

C134

470k

R562

100k

R157

LA-243

L22

15k

R87

0.1

L74

0.01

C543

470p

C111

470p

C49

0.001

C550

0.001

C195

C32

L57

0.001

C617

180

R46

0.1

C156

HSB88WS

D32

HSM88ASR

D12

150

R563

100

R625

LW-25

L20

10k

R173

2.2k

R609

R89

2SC4226

Q10

C517

0.001

C521

R107 220

R158

2.2k

R534

0.01

0.001

C535

2.7

68n

L15

C21

0.1

C390

R504

10p

C527

0.001

C126

0.001

C367

LA-243

L21

R70

0.1

C501

3.3k

0.01

C533

8.2k

R43

330

R202

2.2k

R83

Q58
PMBFJ310

KTC4075

Q54

0.001

C82

0.001

C163

100p

C541

R507

100

C564

3.9

L72

33k

R213

22p

C217

0.001

C79

3.3k

R183

0.001

C140

560

R24

MA77

KTA2015

Q57

0.01

C209

R22

68k

R621

KTC4075

MAIN UNIT

0.01

C184

HSB88WS

D39

12p

C633

3.3k

R632

C118

15k

R149

C600

0.001

C539

10k

R382

C557

0.001

C47

MA77

100

R147

R521

0.1

C223

100

R623

22k

R214

0.001

C532

0.001

C505

0.01

C179

47n

L17

0.22

C551

0.5p

C175

33p

C41

KTC4075

Q71

KRC404

Q52

Q16
KRC404

KRC404

1.8k

R121

1.8k

R124

1.8k

R122

1.8k

R123

R106

1.5k

R385

R384

470

R608

680

R206

680

R541

100k

R127

3.3k

R531

330

R533

22k

R56

470

R631

470

R633

220

R635

3.3k

R603

470

R615

0.022

C531

15p

C612

10p

C613

10p

C615

C178

C176

3.5p

C177

C196

C516

3.5p

C511

0.5p

C515

22p

C522

0.75p

C51

15p

C58

C162

C186

10P

C634

C152

0.047

C602

0.1

0.47

L58

220k

R100

KTA2015

Q14

0.001

C138

0.001

C139

C512

220

R112

680

R25

680

R51

470

R55

6.8k

R561

15p

C537

22p

C373

470p

C376

22p

C374

100p

C375

0.001

C29

56n

L75

CP15

ANT

CHASSIS

CP20

GND

ANT

CP1

CP2

CP6

CP3

CP11

CP14

CP12

CP13

LS-440

L39

LS-440

L38

LS-440

L36

LS-440

L35

LS-440

L61

LS-440

L62

LS-440

L63

CP5

10p

C92

10p

C91

150

R88

30p

C142

18p

C143

15p

C127

R180

470p

C180

3.3k

R104

FL-399

FI2

CR-804

CR-827

2.2

C603

0.47

C606

0.47

C43

KRC402

Q17

to AF
unit J2

PCK
PDATA
UNLK
PSTB
SQL
S5V
DETM
DET70
MOD
GND
NC
GND
GND
TXDET
BPFV
TMUTE
ATT
H/L
RCV
SEND

KTC4080

Q75

KTC4080

Q74

KTC4080

Q64

KTC4080

Q76

15p

C11

18p

C13

2.2k

1.5k

R113

R505

270

R35

270

R33

R34

470

R186

R185

100

R114

22p

C121

15p

C151

0.01

C157

C510

10p

C206

10p

C207

15p

C33

270P

C212

270p

C211

L308CCB

D21

L308CCB

D14

PD3140GS

IC1

VCC1

IN1

ENB

CLK

DATA

LOK

CP1

FI1

FO1

FO2

FI2

CP2

GND2

VCC2

IN2

GND1

15k

R218

NTCG16

R220

to AF
unit
CP11-CP14

JTB450C24

LT450EW

FI6

I O

LT450EW

FI3

I O

C120

0.001

C105

C100

2.2k

R101

R108

C607

C208

PDATA

BPFV

PCK

PSTB

UNLK

SEND

DET70

DETM

SQL

H/L

TXDET

VCO5V

RCV

T5V

RVCOV

MODI

TMUTE

GND
GND

R10V

S5V

MOD

DRAIN BIAS

IC3

RF OUTPUT

TE BIAS

RF INPUT

S-A

V35

4.93V

4.26V

Rx: 4.90V
Tx: 0V

Rx: 7.71V
Tx: 0V

Rx: 5.02V
Tx: 0V

Rx: 10.12V
Tx: 0V

Rx: 0V
Tx: 5.02V

4.93V

Rx: 0V
Tx: 4.80V

Rx: 3.51V

Rx: 1.63V

Rx: 1.95V
Tx: 1.88V

Rx: 0V
Tx: 4.80V

Rx CH16: 5.49V
WX10: 9.20V

Rx: 4.83V
Tx: 0V

Rx: 0V
TxH: 4.73V
TxL: 0V

Rx: 0V
TxH: 1.34V
TxL: 1.36V

Rx: 8.46V

Rx: 8.44V

Rx: 0.79V

11 - 3

11-3 MAIN UNIT

Summary of Contents for IC-M504

Page 1: ...SERVICE MANUAL VHF MARINE TRANSCEIVER S 14225HZ C1 q Dec 2006 ...

Page 2: ...when the transceiver is defective 6 DO NOT transmit power into a 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 test equipment thoroughly before connecting equipment to the transceiver To upgrade quality all electrical or mechanical parts ...

Page 3: ...PROCEDURES 5 1 PREPARATION 5 1 5 2 FREQUENCY ADJUSTMENT 5 2 5 3 TRANSMIT ADJUSTMENT 5 3 5 4 RECEIVE ADJUSTMENT 5 4 SECTION 6 PARTS LIST SECTION 7 MECHANICAL PARTS AND DISASSEMBLY SECTION 8 SEMICONDUCTOR INFORMATION SECTION 9 BOARD LAYOUTS 9 1 AF UNIT 9 1 9 2 MAIN UNIT 9 1 9 3 HM 126B G 9 3 9 4 VR BOARD 9 3 9 5 SQL BOARD 9 3 9 6 DIAL BOARD 9 3 9 7 LOGIC BOARD 9 3 SECTION 10 BLOCK DIAGRAM SECTION 11...

Page 4: ...er More than 70 dB Audio harmonic distortion Less than 10 at 60 deviation Residual modulation More than 40 dB Audio frequency response 1 dB to 3 dB of 6 dB oct from 300 Hz to 2500 Hz Microphone impedance 2 kΩ M RECEIVER Receive system Double conversion superheterodyne system Intermediate frequencies 1st IF 21 7 MHz 2nd IF 450 kHz Normal RX 1st IF 31 05 MHz 2nd IF 450 kHz CH70 RX Sensitivity 13 dBµ...

Page 5: ...5 1 5 2 2 6 5 1 A 5 6 A 5 6 5 7 2 6 5 1 5 7 2 6 5 1 5 2 3 6 5 1 5 2 9 0 6 1 7 6 2 7 6 5 7 3 6 5 1 5 7 3 6 5 1 8 6 8 6 5 2 4 6 5 1 5 2 4 6 5 1 9 6 9 6 5 7 4 6 5 1 5 7 4 6 5 1 0 7 3 0 7 3 5 2 5 6 5 1 5 2 5 6 5 1 1 7 1 7 5 7 5 6 5 1 5 7 5 6 5 1 2 7 2 7 5 2 6 6 5 1 5 2 6 6 5 1 3 7 3 7 5 7 6 6 5 1 5 7 6 6 5 1 4 7 4 7 5 2 7 6 5 1 5 2 7 6 5 1 7 7 1 7 7 1 5 7 8 6 5 1 5 7 8 6 5 1 5 2 9 6 5 1 5 2 5 1 6 1 A ...

Page 6: ... Normal RX IC2 TA31136FNG FM IF IC CH70 RX IC14 TA31136FNG RX VCO TX CH70 RX VCO APC circuit Q14 KTA2015 Q15 FMW1 PLL IC IC1 µPD3140GS Antenna switch D14 D21 L308CCB 1st mixer Normal channels D32 HSB88WS LOGIC BOARD MAIN UNIT AF UNIT AF power amplifier IC9 LA4425A AF power amplifier for hailer IC14 LA4485 E Microphone amplifier IC7 NJM4558M Electric volume IC13 M62429FP S5V regulator IC10 KIA7805A...

Page 7: ...AF unit J2 J5 D A A D B Removing the LOGIC board 1 Disconnect 3 connectors from J6 J4 and J3 2 Unsolder 2 points A 3 Unscrew 7 screws B and remove the LOGIC board from the front panel Removing the MAIN unit 1 Disconnect the flat cable A from J2 2 Unsolder 14 points B 3 Unscrew 6 screws C and remove the MAIN unit from the chassis Removing the AF unit 1 Disconnect 2 flat cables A from J1 and J2 2 Di...

Page 8: ...from the VCO Q72 D51 D52 The converted 1st IF signal is amplified by the 1st IF amplifier Q22 Q23 and passed through two 1st IF filters FI1 FI2 to filter out adjacent signals The filtered 1st IF signal is amplified by the 1st IF amplifier Q24 then applied to the FM IF IC IC2 pin 16 4 1 4 2nd IF AND DEMODULATOR CIRCUITS MAIN UNIT The 1st IF signal is converted into the 2nd IF signal and demodulated...

Page 9: ...tion circuit modulates the VCO oscillating signal with the AF signals from the microphone The MIC signals from the microphone amplifier circuits are applied to the D2 of TX CH70 RX VCO Q4 Q5 D1 D3 and modulate the VCO oscillating signal by changing the reactance of D2 The modulated VCO output signal is buffer amplified by Q6 and Q7 then applied to transmit amplifiers as a transmit signal via the T...

Page 10: ...vided at the prescaler and programmable counter according to the PDATA signal from the CPU LOGIC BOARD IC1 pin 49 The divided signal is phase compared with the reference frequency signal from the reference frequency oscillator X1 at the phase detector The phase difference is output from pin 8 as a pulse type signal after being passed through the internal charge pump The output signal is converted ...

Page 11: ...from pin 9 The demodulated signals are applied to the DSC filters AF UNIT IC12 and AF circuits 4 4 4 DSC DECODE AF UNIT The demodulated signals from FM IF IC MAIN UNIT IC14 pin 9 are filtered at the LPF IC12 pins 1 3 and HPF IC12 pins 5 7 to extract the DSC signal The filtered signals are applied to the DSC decoder IC IC15 pin 2 The decoded DSC signal is output from pin 7 then applied to the CPU L...

Page 12: ... S4 Low When the key is pushed 53 SCAN Input port for the SCAN key LOGIC UNIT S3 Low When the key is pushed 54 H L Outputs transmit power select signal to the TX power controller MAIN UNIT Q17 High 25 W Low 1 W Pin No Port Name Description 58 UNLK Input port for PLL unlock signal from the PLL IC MAIN UNIT IC1 pin 7 High While the PLL is unlocked 59 OPTIN Input port for optional unit attachement de...

Page 13: ...Measuring range 10 mV to 10 V FM deviation meter Frequency range 30 300 MHz Measuring range 0 to 10 kHz External speaker Input impedance 4 Ω Capacity More than 5 W Audio generator Frequency range 300 3000 Hz Output level 1 500 mV Attenuator Power attenuation 40 or 50 dB Capacity More than 30 W 5 1 PREPARATION To the antenna connector To DC power connector Standard signal generator 0 1 µV to 32 mV ...

Page 14: ... check point CP1 1 3 2 3 V Verify LOCK VOLTAGE DSC receive 1 Receiving MAIN Connect a digital multi meter or oscilloscope to the check point CP1 1 3 2 3 V MAIN Verify REFERENCE FREQUENCY 1 Channel CH16 156 800 MHz Output power Low Connect a power meter to the ant enna connector Transmitting Rear Panel Loosely couple a fre quency counter to the antenna connector 156 800 MHz 500 Hz MAIN C12 2EFERENC...

Page 15: ...156 800 MHz Output power Low Connect an audio generator to the MIC line see the page 5 1 and set as Frequency 1 kHz Level 30 mV Set the FM deviation meter as HPF OFF LPF 20 kHz De emphasis OFF Detector P P 2 Transmitting Rear Panel C o n n e c t a n F M d ev i a t i o n m e t e r t o t h e a n t e n n a connector through an attenuator 4 25 4 35 kHz MAIN R327 5 3 TRANSMIT ADJUSTMENT 2 EVIATION ADJU...

Page 16: ...TIVITY except the signal level Level 4 dBu 111 dBm Receiving External speaker Squelch open MAIN Turn R214 clockwise to close the squelch T h e n t u r n R 2 1 4 counter clockwise to set the point where the squelch opens RECEIVE SENSITIVITY DSC receive 1 SQUELCH Max counterclockwise Connect an SSG to the antenna connector and set as RECEIVE SENSITIVITY except the frequency Freqency 156 525 MHz CH70...

Page 17: ... B 120 5 39 R82 7030003440 S RES ERJ3GEYJ 102 V 1 k B 124 7 39 1 R83 7030003580 S RES ERJ3GEYJ 153 V 15 k B 122 6 38 4 R84 7030003440 S RES ERJ3GEYJ 102 V 1 k B 122 6 39 7 R85 7030003680 S RES ERJ3GEYJ 104 V 100 k B 61 6 58 4 R86 7030003210 S RES ERJ3GEYJ 120 V 12 B 64 4 54 4 R87 7030003520 S RES ERJ3GEYJ 472 V 4 7 k B 63 50 4 R88 7030003680 S RES ERJ3GEYJ 104 V 100 k B 67 8 49 5 R89 7030003640 S ...

Page 18: ...6110001600 COL LA 243 L31 6110001600 COL LA 243 L32 6200007360 S COL ELJND R47J T 18 8 35 L35 6150003821 COL LS 440 LF L36 6150003821 COL LS 440 LF L37 6200007360 S COL ELJND R47J T 12 6 14 5 L38 6150003821 COL LS 440 LF L39 6150003821 COL LS 440 LF L40 6130003000 S COL 617DB 1714 P3 T 37 1 5 6 L41 6130003000 S COL 617DB 1714 P3 T 48 9 5 6 L42 6200010440 S COL C2520C 1R2G A 1 2U T 57 9 8 5 L43 620...

Page 19: ... 10 k T 62 45 7 R383 7030003440 S RES ERJ3GEYJ 102 V 1 k T 61 3 44 4 R384 7030003440 S RES ERJ3GEYJ 102 V 1 k T 35 5 31 9 R385 7030003460 S RES ERJ3GEYJ 152 V 1 5 k T 35 5 30 6 R386 7030003680 S RES ERJ3GEYJ 104 V 100 k T 107 8 43 R498 7030003620 S RES ERJ3GEYJ 333 V 33 k T 14 1 26 9 R499 7030003580 S RES ERJ3GEYJ 153 V 15 k T 13 1 29 5 MAIN UNIT REF ORDER DESCRIPTION M H V NO NO LOCATION R501 703...

Page 20: ...68 4030017420 S CER ECJ0EC1H470J T 67 3 56 4 C373 4030017400 S CER ECJ0EC1H220J T 88 54 4 C374 4030017400 S CER ECJ0EC1H220J T 86 9 54 4 C375 4030017430 S CER ECJ0EC1H101J T 87 58 6 C376 4030017730 S CER ECJ0EB1E471K T 88 58 6 C379 4030017430 S CER ECJ0EC1H101J T 80 1 57 9 C380 4030017730 S CER ECJ0EB1E471K T 80 1 57 MAIN UNIT REF ORDER DESCRIPTION M H V NO NO LOCATION C390 4030016930 S CER ECJ0EB...

Page 21: ... H V NO NO LOCATION R306 7030003800 S RES ERJ3GEYJ 105 V 1 M T 36 1 31 1 R307 7030003440 S RES ERJ3GEYJ 102 V 1 k B 61 1 19 2 R308 7030003770 S RES ERJ3GEYJ 564 V 560 k B 67 3 26 4 R309 7030003680 S RES ERJ3GEYJ 104 V 100 k B 66 6 22 3 R311 7030003520 S RES ERJ3GEYJ 472 V 4 7 k B 63 22 1 R312 7030003610 S RES ERJ3GEYJ 273 V 27 k B 67 3 29 5 R313 7030003680 S RES ERJ3GEYJ 104 V 100 k B 71 1 31 R314...

Page 22: ...04601 ELE 16 ME 1000 HC C370 4030011600 S CER C1608 JB 1E 104K T T 13 9 53 8 C375 4030016930 S CER ECJ0EB1A104K T 49 3 32 3 C377 4030017420 S CER ECJ0EC1H470J T 2 4 50 9 C378 4030017460 S CER ECJ0EB1E102K T 3 3 50 9 C381 4510008500 S ELE EEE1CA101WP T 11 2 20 2 C382 4030016790 S CER ECJ0EB1C103K T 9 9 24 3 C383 4030011600 S CER C1608 JB 1E 104K T T 9 8 25 4 C384 4030011600 S CER C1608 JB 1E 104K T...

Page 23: ...96N97 15SK 10KB 2685 1 ORDER NO REF NO DESCRIPTION QTY ACCESSORIES W1 8900009041 Cable OPC 891A 1 EP1 6910013530 Bead ZCAT2035 0930A BK 1 MP1 8010018154 2345 mobile bracket 4 ZK Black 1 8010020464 2345 mobile bracket C 4 Gray 1 MP2 8810001490 Screw PH A M5 20 SUS 4 MP3 8850000180 Flat washer M5 SUS 4 MP4 8850000500 Spring washer M5 SUS 4 MP5 8610010561 2040 knob bolt 1 Black 2 8820001271 2040 knob...

Page 24: ...1 S R1 V MP3 F MP7 F MP6 F MP9 F MP23 F AF UNIT VR BOARD DIAL BOARD SQL BOARD LOGIC BOARD MAIN UNIT S1 D MC1 F MP1 F MP21 F MP21 F MP21 F MP10 F Unit abbreviations C CHASSIS PARTS M MAIN UNIT A AF UNIT F FRONT PARTS L LOGIC BOARD V VR BOARD S SQL BOARD D DIAL BOARD R1 V R1 S S1 D MP1 L DS1 L MP4 L MP2 L MP42 C MP5 C MP42 C MP42 C MP42 C MP3 C MP4 C MP41 C MP5 C MP1 C MP5 C MP42 C MP5 C MP11 F MP11...

Page 25: ...C MP14 C MP2 C MP5 C MP8 C MP15 C MP16 C MP9 C MP21 C MP18 C MAIN UNIT MP1 C SP1 M MP17 C CHASSIS PARTS W1 8900014820 Cable OPC 948 Gray 1 8900013590 Cable OPC 949 Black 1 MP1 8210022750 2352 front panel 1 Gray 1 8210021410 2352 front panel A 1 Black 1 MP2 8210020380 2352 rear panel Gray 1 8210020120 2352 rear panel A Black 1 MP3 8930052160 2352 key 1 MP4 8930052150 2352 PTT rubber 1 MP5 893005214...

Page 26: ...A PCK EXTOE OPTIN 6 1 to CHASSIS unit W3 J6 ICF3 EXTRXD EXTTXD PTTC MICG AF MIC 2 1 to CHASSIS unit W1 J11 SP SP HAILO 2 1 to CHASSIS unit W2 J12 HAILO DETO 14 13 2 1 to option SCRAMBLER unit J3 MICO DETI MICI OPSTB SDATA SCK GND GND GND SCON OPTIN GND 5V HV GND to MAIN unit J1 to CHASSIS unit W1 GND GND HV HV SECTION 9 BOARD LAYOUTS 9 1 9 1 AF UNIT TOP VIEW H5 H10 H15 H20 H25 H30 H35 H40 H45 H50 ...

Page 27: ...15 H120 H125 H0 V5 V10 V15 V0 V25 V30 V35 V20 V45 V50 V55 V40 V65 V60 HV 1 4 to AF unit CP11 CP14 J1 HV GND GND 9 2 BOTTOM VIEW MAIN UNIT H5 H10 H15 H20 H25 H30 H35 H40 H45 H50 H55 H60 H65 H70 H75 H80 H85 H90 H95 H100 H0 V5 V10 V15 V0 V25 V30 V35 V20 V45 V50 V55 V40 V65 V60 BOTTOM VIEW AF UNIT ...

Page 28: ... 3 1 to LOGIC board J3 W1 SQLV S5V SQL 9 5 SQL BOARD TOP VIEW H5 H10 H0 V5 V10 V15 V0 GND 4 1 to LOGIC board J3 W1 DIALB DIALA GND DIAL 9 6 DIAL BOARD TOP VIEW H5 H10 H15 H20 H25 H30 H35 H40 H45 H50 H55 H60 H65 H70 H75 H80 H85 H90 H95 H100 H105 H110 H115 H120 H125 H130 H135 H140 H145 H150 H155 H0 V5 V10 V15 V0 V25 V30 V35 V20 V45 V50 V55 V40 V65 V70 V75 V60 V80 LO DX 16 CH WX SCAN H L POWER HAIL C...

Page 29: ...0 V55 V40 V65 V70 V75 V60 V80 1 2 to Microphone HM 126 J6 KEY GND 1 8 to Microphone HM 126 J4 NC PTT HANG MICG MIC SP NC AF 1 10 to DIAL SQL VR boards J3 GND DIALA DIALB ENT S5V SQLV GND VOL1 VOL2 VOLG 1 to AF unit J1 2 39 40 J1 OPSTB EXTSTB PSTB UNLK EXTRXD MIC MICG TXDET SQL BPFV EVCK FOG VOL2 VOL1 RCV GND NC VCC SP SP OPTIN EXTOE PCK PDATA EXTTXD ICF3 DSCENC DSD70 DSDM WXDEC EVDATA FOGC BEEP GN...

Page 30: ...P FM FI6 LT450EW BUFF IC14 TA31136FN 2ND IF 2ND 31 05MHz Q63 KTC3880S FI4 FL 372 Q64 KTC4080 SHIFT Q2 KRC404 D1 D2 MA77x2 R10V Normal channels R10V R10V NMEAI NMEAO NMEAI Q37 KRA304 IC29 NMEAO VCC NMEAI IC6D IC6C EXT SP OPTION NMEAI SAFO EXT SP HAIL ICF3 NJM2107F PTTC POWER DIVIDER D14 D21 L308CCBx2 RF OUT DET VOL M62429FP EL IC13 IC14 LA4485 HV Q61 TPC6104 Q62 KRC404 R10V Q52 KRC404 S5V Q54 KTC40...

Page 31: ...2 TAOUT 29 P67 TXD1 SDA1 30 P66 RXD1 SCL1 31 P65 CLK1 32 P64 CTS1 RTS1 CTS0 CLKS1 33 P63 TXD0 SDA0 34 P62 RXD0 SCL0 35 P61 CLK0 36 P60 CTS0 RTS0 37 P57 TDY CLKOUT 38 P56 ALE 39 P55 HOLD 40 P54 HLDA 41 P53 BCLK 42 P52 RD 43 P51 WRH BHE 44 P50 WRL WR 45 P47 CS3 46 P46 CS2 47 P45 CS1 48 P44 CS0 49 P43 A19 50 P42 A18 51 P41 A17 52 P40 A16 53 P37 A15 54 P36 A14 55 P35 A13 56 P34 A12 57 P33 A11 58 P32 A...

Page 32: ...22 C317 100 C381 LA4425A IC9 1 2 3 4 5 100k R243 0 01 C247 1M R270 100k R260 1M R247 1 C260 100k R278 2 2 C448 0 001 C293 0 01 C292 0 0068 C323 10k R325 NTCG16 R324 15k R326 1 C250 1 C249 0 47 C453 J3 0 01 C589 0 0022 C587 0 1 C588 0 0047 C313 820p C312 56p C314 12p C306 270p C303 47p C318 0 1 C301 0 01 C351 0 1 C423 47p C425 47p C424 KRC404 Q62 0 R298 2SB1143 Q71 XP6501 Q72 1 2 3 4 5 6 10k R592 1...

Page 33: ...C111 470p C49 0 001 C550 0 001 C195 5p C32 L57 15µ 0 001 C617 180 R46 0 1 C156 HSB88WS D32 HSM88ASR D12 150 R563 100 R625 LW 25 L20 10k R173 2 2k R609 10 R89 2SC4226 Q10 2p C517 0 001 C521 R107 220 39 R158 2 2k R534 0 01 C2 0 001 C535 2 7µ L3 68n L15 10 C21 0 1 C390 47 R504 10p C527 0 001 C126 0 001 C367 LA 243 L21 0 R70 0 1 C501 3 3k R9 0 01 C533 8 2k R43 330 R202 2 2k R83 Q58 PMBFJ310 KTC4075 Q5...

Page 34: ...ICOMAMERICA COM USTOMER 3ERVICE 0HONE LENWOOD ENTRE IGHWAY ELTA 6 ANADA 0HONE AX 52 HTTP WWW ICOMCANADA COM MAIL INFO ICOMCANADA COM 5NIT ARDEN 2OAD LAYTON 6 USTRALIA 0HONE AX 52 HTTP WWW ICOM NET AU MAIL SALES ICOM NET AU ARRIS 2OAD AST 4AMAKI UCKLAND EW EALAND 0HONE AX 52 HTTP WWW ICOM CO NZ MAIL INQUIRIES ICOM CO NZ 2OOM TH LOOR ONG 3ILVER ANSION O 9ONG ING 2OAD AIDIAN ISTRICT EIJING HINA 0HONE...

Page 35: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14225HZ C1 q 2006 Icom Inc ...

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