Icom IC-M401EURO Service Manual Download Page 33

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11 - 2

11-2 MAIN UNIT

R76
150

PTTM

RMTM

DSC+

DSC-

VCC

GND

3
4

D16
1SS375

C228
470 P

R158 100

C227
0.001

C226
470 P

C252
0.001

R155
33 k

L26
0.10 H

C5
0.001

R6
10

R12
1.5 k

C20
100 P

R14
1.2 k

FI3 CFWS450F

C34
0.01

R25 100

L28 82 nH

C258

9 P

C259

9 P

C260
0.001

C33
0.1

VCC1

IN1

ENB

CLK

DATA

LOK

CP1

FI1

FO1

FO2

FI2

CP2

GND2

VCC2

IN2

GND1

IC2 UPD3140GS

C39
0.001

R165
100 k

R28 330

C40
0.01

R30
10

R31
2.2 k

C41
0.047

C42
2.2

R32
10 k

R29
1 k

PSTB

UNLK

PCK
PDATA

C26
0.001

R18
22 k

C36
10 P

C37
12 P

R26
330

C38
0.001

R16
RV-152

C266
0.001

R27
1.5 k

C35
18 P

X2 CR-659

SQL

DET

CP1

R11
100 k

C18
0.01

Q2
2SC2714 Y

IC1
TA31136FN

C21
0.01

C22
10

C24
0.001

R15
470

C25
0.001

C27 220 P

C28
220 P

R20
330 k

C29
0.001

R21
390

C30
0.1

C31
0.1

R22 1.5 k

C32
0.001

C19
0.22

R13
470

C275
0.001

R19
820

X1
CDBCA450CX24

R5
10 k

Q1 3SK272

C3
0.022

C6
68 P

L1
0.82 H

L2
56 nH

C9
10 P

L3
82 nH

C10
15 P

C11
0.001

R8
2.2 k

C12
0.01

FI1
FL-310

FI2
FL-310

C16
0.022

C14
6 P

C17
0.001

C7
0.001

C4
0.001

R9
1.5 k

R7
3.3 k

R3
10 k

C224
5 P

C225
12 P

C223
12 P

C254
0.001

R188
100

L27
4.7 H

R10
1.5 k

L25
82 nH

C221
12 P

C222
33 P

L24
82 nH

C215
12 P

C214
5 P

C212
0.01

R157
47

R163
1 k

C256
0.001

C249
0.001

R191
10 k

R208
82 k

C220
2 P

D20
MA77

D21
MA728

L21
82 nH

C253
0.001

R190
10 k

L22
82 nH

C216
33 P

R187
1 k

C218
1 P

C217
15 P

C213
47 P

C210
5 P

C209
12 P

L20
82 nH

C208
33 P

C207
12 P

C203
12 P

C202
33 P

C198
22 P

C199
47 P

C200
5 P

C201
12 P

L16
82 nH

D19
MA77

C206
2 P

C251
0.001

L17
82 nH

C204
1 P

R185
10 k

L19
82 nH

C211
47 P

L15
LA-243

C197
27 P

D15
XB15A308

BPFV

CHASSIS
unit

L11
LW-25

C105
22 P

D10
XB15A308

C106
0.001

L13
LA-243

L14
LA-253

L32
LA-243

C107
18 P

C108
5 P

C110
4 P

C109
27 P

C111
15 P

C280
4 P

C81
0.001

C80
47

C82
10 P

C88
220 P

VGG

VDD

IC3 SC-1302

Q12
2SB1202 S

R65
47 k

C84
1

C85
470 P

C86
0.001

C87
0.01

C89
0.001

C283
10 P

C284
220 P

C91
22 P

C92
0.001

R77
68

C102
22 P

R78
2.2 k

C103
0.001

D8
HSM88ASR

L12
LA-243

R79
2.2 k

C104
0.001

D9
HSM88ASR

C101
0.001

C100
470 P

C83
1000

VCC

R56
4.7 k

Q10
2SC3775 3

R58
100

C73
0.001

R60
1 k

1SS355

D12

1SS355

R61
100

C75
0.001

R62
1 k

L10
82 nH

R63
33

R64
33

GND

C78
22 P

C77
0.001

L29
47 nH

C268
18 P

C71
0.001

C294
220 P

R57
4.7 k

L9
82nH

R59
10

C72
0.001

C74
12 P

C295
1 P

C79
18 P

L30
47 nH

L31
47 nH

C270
39 P

C271
18 P

C76
1 P

L6
0.1 H

R49
470

C61
470 P

L7
0.1 H

Q8
2SC4215 0

C63
22 P

R51
100

C64
470 P

C65
0.001

L8
0.1 H

C66
12 P

Q9
2SC4215 0

C67
18 P

D5
MA77

C70
10 P

R50
68 k

R52
27 k

D6
MA77

C62
5 P

C68
0.01 R54

2.2 k

R192
100

C267
18 P

R53
1 k

1
2
3
4
5
6

MP1

IC12
TC4W66FU

VCC

VCO5

D1
MA77

C48
0.001

R40 1.8 k

D2
MA77

C49
470 P

C50
0.22

C51
0.001

L4
2.7 H

C52
47 P

C53
39 P

L5
80 nH

D3
HVU350

D4
HVU350

R42
8.2 k

C56
0.001

R43
8.2 k

R44
100

R45
390

C57
470 P

Q5
2SC4226 R25

R46
180

Q6
2SC4226 R25

C58
470 P

C59
470 P

Q7
2SC4215 0

R48
68 k

R47
680

C54
1.5 P

C55
1.5 P

C60
0.5 P

Q3
2SC4116 BL

C44
0.001

R34
1 k

R36
100

R37 33 k

R38
100 k

R39
22 k

R41
560

R33
1 k

C43
10

R35
47 k

C257
0.01

C272
10

C45
0.01

C46
470 P

Q14
DTC144EU

R68
10 k

R70
10 k

Q15
FMW1

R71
RV-143

Q16
DTC144EU

C93
0.001

R74
100 k

C94
0.01

C95
22 P

C47
0.1

C190
0.001

C189
0.001

DET

R93
1 M

R87
100 k

R169
100 k

R91
1M

R95
1 M

C137
0.1

R96
2.7 k

Q21
2SC4116 BL

R98
470 k

C138
0.022

C139
0.022

C141
10

R102 1 k

R101
15 k

5V
VOL1

VBIAS

C136
2.2

R66
3.3

C90
0.01

R69
220

C135
0.01

R99
150 k

R100
15 k

C140
0.1

R97
390

MMIC

TMUTE

HI/LO

TXDET

VBIAS
5V
VOL1

R73
8.2 k

R82
2.7 k

C128
0.1

C96
0.01

C97
22 P

C278
47 P

C279
0.1

R81
10 k

C290
220 P

C289
10 P

RL1

D18
1SS355

PTT

Q18
DTC144EU

MIC

VOL1

VBIAS

CHASSIS UNIT

GND

SP+

D11
DSA3A1

C115
0.001

C293
470 P

C116
47 P

FI4
NFM60R20T/S2

FI5
NFM60R20T/S2

C118
470 P

SP—

SP+

PTT

MIC

C155
0.01

C156
10

R183
100 k

R126
100 k

R206
150 k

C235
0.1

5V
VBIAS
AF5

R141
18 k

C168
0.001

C169
0.01

C170
10

R142
6.2 k

R143
22 k

R140
10

IC10B
NJM4558M

C165
0.0047

IC11B
NJM4558M

IC10A
NJM4558M

VCC
T5
R5
5V

VCC
VOL2

IC11A
NJM4558M

R122
100 k

SQLV

HV
GND

PTT

MIC
GND

GND

VOL2

SP+

MICG

R80
100

C120
470 P

C121
0.001

C277
0.001

PTT

SQLV

From smart mic
(HM-132)

1
2
3
4

1
2
3
4
5
6
7
8

VOL1
HVS

C124
47 P

C125
0.001

R186
1 k

SP—

Q11
2SC3268

Q4
DTC144EU

Q27
2SC4226

VR-B BOARD

VR-A BOARD

R1
100 k

SQLV

HV
GND
VOL2
VOL1
HVS

GND

R1
100 k

1
2
3

1
2
3
4
5

GND

GND
GND

VOL1

SQLV
5V

VOL2

HVS

1
2
3
4
5
6
7
8

VCC
VCC

BPLVL

BEEPM

BPLVL

BEEPM

SP+

PCK

CP2

VCC

MOD

DET

VCC

PSTB

PDATA

UNLK

SQL

RMUTM

PTTM

BPFV

PTT

SQLV

HI/LO

ATIS

TXDET

SQL

RMUTM

PTTM

BPFV

PTT

SQLV

HI/LO

ATIS

TXDET

TMUT

SEND

RCV

TMUT

SEND

RCV

C192
22 P

C191
22 P

C193
0.001

C255
0.001

C261
0.001

C265
47 P

C264
47 P

C262
47 P

C194
0.01

C298
0.001

C195
0.001

C196
0.01

C297
82

C296
82 P

R193
1 k

R195
1 k

R194 1 k R196 1 k

D14
DA204U

R149
15 k

R151
22 k

R152
1M

IC9
LA4425A

C181
2.2

C182
0.01

C183
0.1

C185
470

C239
47 P

C240
0.001

C186
470

R154
4.7

C237
0.1

C127
47 P

C126
0.01

C187
0.1

C288
220 P

C287
10 P

C292
220 P

C291
10 P

R150
1.2 k

Q26
DTC144EU

C184
0.001

C188
47 P

BPLVL

BEEPM

Q22 2SA1588 GR

Q24 2SA1588 GR

R145
10 k

R146
2.2 k

Q23
DTC144EU

R147
10 k

R148
1 k

Q25
DTC114EU

C177
0.1

C178
0.01

C179
0.1

C180
0.01

SEND

RCV

R144
18

C172
0.01

C173
0.1

IC8 TA7805F

C174
0.1

C175
0.01

C171
100

C176
10

ATIS

R121
2.2 k

R203
18 k

R207
18 k

R204
1

R130
390 k

R123
150 k

C162
0.1

R172
15 k

R129
5.6 k

C233
0.001

C160
100 P

C202
0.0047

R171
390 k

C159
0.01

C234
56 P

R201
10 k

R113
100 k

C276
0.1

R176
33 k

R177
560

C236
0.1

R175
22 k

R174
2.2 k

Q29
2SC4116 BL

R132
82 k

R133
82 k

C164
820 P

C166
56 P

R131
150 k

R134
39 k

R135
103 k

R136
12 k

R137
15 k

R138
RV-110

R139
8.2 k

C246
0.0027

AFOUT

QUAD

IFOUT

RSSI

N-DET

N-REC

GND

MIXIN

FILIN

FILOUT

DEC

IFIN

VCC

MIXOUT

OSCOUT

OSCIN

2ndLO

MIC

from/to

LOGIC BOARD

C23
0.22

C299
0.1

C300
0.001

R216
47

C281
47 P

R215
12 k

R210 10 k

R212
333 k

R211
68 k

R214
2.7 k

R213
12 k

C286
220 P

C285
10 P

IC13
NJM2125F

C98
0.001

0.80 V at -3dBu RX

4.98 V

4.92 V

2.70 V

0.87 V

0.27 V

2.47 V

4.28 V

0.89 V

2.35 V

2.45 V

3.28 V

3.97 V

580mVp-p at 3kHz DEV

RX: 3.55 V

RX: 1.28 V

RX: 4.97 V
TX: 0.00V

RX: 0.00 V
TX: 4.94 V

RX: 4.94 V
TX: 0.00 V

2.29 V

2.91 V

4.90 V

SQL OPEN: 4.95 V
SQL CLOSE: 0.00 V

TX: 0.05 V
RX: 4.21 V

3.67 V

TX_H: 8.55 V
TX_L: 5.15 V

RX: 0.73 V

RX: 4.85 V

RX: 3.07 V

RX: 0.89 V

RX: 1.66 V

CH16_RX: 4.91 V
CH88_RX: 0.00 V

TX_H: 3.13 V
TX_L: 3.24 V

13.8 V

Summary of Contents for IC-M401EURO

Page 1: ...SERVICE MANUAL VHF MARINE TRANSCEIVER ...

Page 2: ...supply when connecting the transceiver DO NOT apply an RF signal of more than 20 dBm 100mW to the antenna connector This could damage the trans ceiver s front end REPAIR NOTES 1 Make sure a problem is internal before disassembling 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...

Page 3: ...DURES 5 1 PREPARATION 5 1 5 2 PLL ADJUSTMENTS 5 2 5 3 TRANSMITTER ADJUSTMENTS 5 3 5 4 RECEIVER ADJUSTMENTS 5 3 SECTION 6 PARTS LIST 6 1 IC M401EURO 6 1 6 2 HM 132 6 5 SECTION 7 MECHANICAL PARTS AND DISASSEMBLY 7 1 IC M401EURO 7 1 7 2 HM 132 7 3 SECTION 8 SEMI CONDUCTOR INFORMATION SECTION 9 BOARD LAYOUTS 9 1 VR A BOARD 9 1 9 2 VR B BOARD 9 1 9 3 HM 132 9 1 9 4 LOGIC BOARD 9 2 9 5 MAIN UNIT 9 4 SEC...

Page 4: ...um frequency deviation 5 0 kHz Frequency stability Less than 0 25 µW Spurious emissions 70 dBc Residual modulation 40 dB Audio harmonic distortion Less than 10 at 60 deviation Audio frequency response 1 dB to 3 dB of 6 dB octave from 300 Hz to 3000 Hz RECEIVER Receive system Double conversion superheterodyne system Intermediate frequencies 1st 21 7 MHz 2nd 450 kHz Sensitivity Less than 2 dBµ emf t...

Page 5: ...00 157 150 157 150 157 200 157 250 157 300 157 350 157 400 156 025 156 025 156 075 156 075 156 125 156 125 156 175 156 175 156 225 156 225 156 275 156 275 156 325 156 325 156 375 156 425 156 475 156 525 156 575 156 625 Receive 161 700 157 100 161 750 157 150 161 800 161 850 161 900 161 950 162 000 160 625 156 025 160 675 156 075 160 725 156 125 160 775 156 175 160 825 156 225 160 875 156 275 160 9...

Page 6: ...I3 CFWS45QF 1st mixer Q1 3SK272 Antenna switching circuit 1st IF filter FI1 FI2 FL 310 YGR amplifier Q11 2SC3268 AF power amplifier IC9 LA4425A Pre driver Q10 2SC3775 3 PLL IC IC2 PD3140GS EEPROM IC2 HN58X2432TI VR A board VR B board MAIN MPU IC1 HD6473847RH System clock X1 CR 691 Speaker Reset IC IC6 S 80942A NMP DD6 LOGIC board ...

Page 7: ...12 kg of torque MUST be applied to ensure water resistance REMOVING THE MAIN UNIT Remove the shield cover Unsolder DC cable 4 points and antenna connector B 2 points as shown below Unscrew 2 screws C and 6 screws D to remove the MAIN unit A C B D Slide the case free of the chassis in the direction of the arrow ...

Page 8: ...al The 1st IF signal is applied to two crystal filters FI1 FI2 to suppress out of band signals and is then amplified at the IF amplifier Q2 The amplified signal is applied to the 2nd mixer circuit IC1 4 1 4 2ND IF AND DEMODULATOR CIRCUITS MAIN UNIT The 2nd mixer circuit converts the 1st IF signal to a 2nd IF signal A double superheterodyne system which converts receive signals twice improves the i...

Page 9: ... to obtain the pre emphasis charac teristics The amplified signals are passed through the MIX circuit IC10A pins 2 1 to do amplitude limiting and are then applied to the splatter filter IC10B pin 5 to suppress unwanted 3 kHz or higher signals The filtered signals are then applied to the modulation circuit 4 2 2 MODULATION CIRCUIT MAIN UNIT The modulation circuit modulates the VCO oscillating signa...

Page 10: ...put signal with a refer ence frequency and then outputs the out of phase signal pulse type signal from pin 8 The pulse type signal is converted into DC voltage lock voltage at the loop filter R29 R31 R41 C41 C42 C50 C51 and is then applied to varactor diodes D3 D4 of the VCO to stabilize the oscillated frequency The lock voltage from the loop filter is amplified at the buffer amplifier Q7 and then...

Page 11: ...mputer and contains LCD driver serial I O timer A D converter programmable I O ROM and RAM SYSTEM CLOCK CIRCUIT X1 is a ceramic oscillator and oscillate 9 8304 MHz system clock for the CPU IC1 RESET CIRCUIT IC6 is a reset IC When turn power ON IC6 outputs a reset signal LOW pulse to the CPU IC1 pin 15 via the RES line LOW BATTERY DETECTOR VCC voltage is divided by R74 R75 and is applied to the low...

Page 12: ...smit mute signal High While transmitting Input port for DS 100 data Outputs cloning data signal Input port for the squelch volume level Input port from the FM IF IC MAIN unit IC1 for the squelch operation Input port for the connected power supply voltage detection low battery indicator Input port for TX LED control signal 93 94 95 96 97 98 99 Input port for the HM 132 functions 2 02 V UP is pushed...

Page 13: ...IPMENT Audio generator Standard signal generator SSG Oscilloscope AC millivoltmeter External speaker Attenuator Dummy load GRADE AND RANGE Frequency range 300 3000 Hz Measuring range 1 500 mV Frequency range 0 1 300 MHz Output level 0 1 µV 32 mV 127 to 17 dBm Frequency range DC 20 MHz Measuring range 0 01 20 V Measuring range 10 mV 10 V Input impedance 4 Ω Capacity 5 W or more Power attenuation 40...

Page 14: ... Output power Low Transmitting Operating channel ch16 Output power Low Connect an RF power meter or a 50 Ω dummy load to the antenna connector Transmitting MAIN Rear Panel Connect a digital multi meter or oscil loscope to the check point CP1 Loosely couple the frequency counter to the antenna con nector 1 8 V 1 6 V 156 8000 MHz MAIN Verify C36 C36 Reference frequency adjustment CP1 PLL lock voltag...

Page 15: ...nnect a DC volt meter to the check point CP2 Less than 0 56 µV 0 8 V MAIN Verify R16 This output level of a standard signal generator SSG is indicated as SSG s open circuit 5 3 TRANSMITTER ADJUSTMENTS OUTPUT POWER FREQUENCY DEVIATION ADJUSTMENT ADJUSTMENT ADJUSTMENT CONDITION MEASUREMENT VALUE POINT UNIT LOCATION UNIT ADJUST 1 1 Operating channel ch16 Output power High Transmitting Operating chann...

Page 16: ...5 4 R71 Output power adjustment R138 Frequency deviation adjustment R16 Squelch level adjustment CP2 Squelch level check point J2 PTT 4 1 r q AC millivoltmeter 2 200 mV Audio generator 300 Hz to 3 kHz ...

Page 17: ...003560 S RESISTOR ERJ3GEYJ 103 V 10 kΩ S Surface mount R62 7030004120 S RESISTOR ERJ3GEYJ 203 V 20 kΩ R63 7030004120 S RESISTOR ERJ3GEYJ 203 V 20 kΩ R64 7030004120 S RESISTOR ERJ3GEYJ 203 V 20 kΩ R65 7030004120 S RESISTOR ERJ3GEYJ 203 V 20 kΩ R66 7030004120 S RESISTOR ERJ3GEYJ 203 V 20 kΩ R67 7030004120 S RESISTOR ERJ3GEYJ 203 V 20 kΩ R68 7030004120 S RESISTOR ERJ3GEYJ 203 V 20 kΩ R69 7030004120 S...

Page 18: ... 3 L2 6200002410 S COIL NL 252018T 056J L3 6200002430 S COIL NL 252018T 082J L4 6200003090 S COIL NL 322522T 2R7J 3 L5 6200008190 S COIL 0 25 1 9 8TL 80N L6 6200009180 S COIL ELJRE R10J F3 L7 6200009180 S COIL ELJRE R10J F3 L8 6200009180 S COIL ELJRE R10J F3 L9 6200002430 S COIL NL 252018T 082J L10 6200002430 S COIL NL 252018T 082J L11 6170000230 COIL LW 25 L12 6110001600 COIL LA 243 L13 611000160...

Page 19: ...03450 S RESISTOR ERJ3GEYJ 122 V 1 2 kΩ R151 7030003600 S RESISTOR ERJ3GEYJ 223 V 22 kΩ R152 7030003800 S RESISTOR ERJ3GEYJ 105 V 1 MΩ R154 7030000100 S RESISTOR MCR10EZHJ 4 7 Ω 4R7 R155 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 kΩ R157 7030003280 S RESISTOR ERJ3GEYJ 470 V 47 Ω R158 7030003320 S RESISTOR ERJ3GEYJ 101 V 100 Ω R163 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 kΩ R165 7030003680 S RESISTOR ER...

Page 20: ...C1608 JB 1E 103K T A C160 4030007130 S CERAMIC C1608 CH 1H 101J T A C162 4030011600 S CERAMIC C1608 JB 1C 104KT N C164 4030009490 S CERAMIC C1608 JB 1H 821K T A C165 4030006880 S CERAMIC C1608 JB 1H 472K T A C166 4030007100 S CERAMIC C1608 CH 1H 560J T A C168 4030006860 S CERAMIC C1608 JB 1H 102K T A C169 4030006900 S CERAMIC C1608 JB 1E 103K T A C170 4510004630 S ELECTROLYTIC ECEV1CA100SR C171 45...

Page 21: ...7170 S CERAMIC C1608 CH 1H 221J T A C293 4030006850 S CERAMIC C1608 JB 1H 471K T A C294 4030007170 S CERAMIC C1608 CH 1H 221J T A C295 4030009510 S CERAMIC C1608 CH 1H 010B T A C296 4030007120 S CERAMIC C1608 CH 1H 820J T A C297 4030007120 S CERAMIC C1608 CH 1H 820J T A C298 4030006860 S CERAMIC C1608 JB 1H 102K T A C299 4030011600 S CERAMIC C1608 JB 1C 104KT N C300 4030017200 S CERAMIC GHM1030 R ...

Page 22: ...E 1 MP2 8930055600 2438 Key board A 1 MP3 8310050810 2438 Window plate 1 MP4 8610011030 Knob N 286 BLACK 2 8610011040 Knob N 286 A WHITE 2 MP5 8930014280 SP net 1 MP6 8810008660 Screw PH B0 M3x8 NI ZU BT 4 MP7 8830001580 Sonicrock SL M3 5 8 4 MP10 8110007580 2490 E cover BLACK 1 8110007610 2490 E cover A WHITE 1 MP12 8930052280 O ring AC 2 MP13 8310051220 2438 C Bush plate 1 MP14 8610009240 Knob s...

Page 23: ...ARD DS1 L MP1 L MP3 L MP14 C W3 F MP14 C MP14 C W1 C MP14 C MP15 C MP2 M MP10 C MP16 C MP25 C MP26 C IC3 M W1 C MP20 C MP3 C MP5 C J1 C MP28 C W2 C MAIN UNIT MP17 C MP7 C MP2 C MP8 C UNIT abbreviations C CHASSIS PARTS L LOGIC BOARD M MAIN UNIT VA VR A BOARD VB VR B BOARD F FRONT UNIT MP15 C MP22 C W1 C MP4 F R1 VB MP3 F R1 VA MP1 F MP13 F MP3 M MP4 M MP5 F MP24 C MP27 C MP23 C MP5 M MP5 M MP6 M 7 ...

Page 24: ...5 MP13 8850001850 ICOM washer Y 5 MP14 8930052340 O ring AE 5 MP15 8930052350 O ring AF 1 MP16 8930056460 2449 MIC sheet 1 MP17 8930054910 2449 SP Rubber 1 MP18 8850001610 Spring washer M4 SUS 1 MP19 8810009260 Screw PH B0 2 6 NI BT 3 MP21 8810009240 Screw BiH M4 10 ZK 1 MP23 8810008900 Screw PH M3 6 NI 1 REF NO CHASSIS PARTS ORDER NO DESCRIPTION QTY REF NO MC1 7700002500 Microphone KUC3523 040245...

Page 25: ...E C B E C 2SC4081 R Symbol BR 2SC4116 BL Symbol LL B E C 2SC4226 R25 Symbol R25 2SK1069 4 Symbol FJ G1 G2 S D 3SK272 Symbol DU B E C DTA144 EU Symbol 16 B E C DTA114 EU Symbol 16 B E C DTC114 EU Symbol 24 B E C DTC144 EU Symbol 26 DTC114 TU Symbol 04 B E C D G S B B E E C C DIODES DA204 U Symbol K MA77 Symbol 4B A K HVU350B Symbol BO HSM88ASR Symbol C3 A C 1SS355 Symbol A 1SS375 Symbol FH DSA3A1 M...

Page 26: ...ARD LAYOUTS 9 1 VR A BOARD 9 2 VR B BOARD 9 3 HM 132 TOP VIEW BOTTOM VIEW 1 B 5585B R1 W1 GND GND VOL2 VOL1 HVS 5 W1 1 to Main unit J5 1 W1 R1 B 5586B GND SQLV 5V 3 W1 1 to Main unit J5 R1 R2 R3 R4 C1 S4 S2 MC1 S 3 S1 ...

Page 27: ... C24 X1 R46 R47 C14 R78 R76 R4 D4 C4 C3 C6 J1 J1 1 C5 D5 D6 C1 D3 D2 Q9 Q6 C25 C26 R36 R3 Q5 Q7 R77 R6 D1 C9 R34 IC7 IC4 R39 R89 R2 R79 C11 C13 R35 Q3 R83 R10 C20 R75 R74 R1 C2 B5679A ICOM J4 J4 SP SP BPLVL VCC 5V GND GND TMUT TXDET HI LO SQLV PTT BPFV SQL UNLK PSTB SP SP BEEPM VCC 5V RCV SEND GND GND ATIS PTTM RMUTM GND PDATA PCK 40 2 39 J4 1 to Main unit J6 J3 From HM 132 DATAS DATAS DATAM DATAM...

Page 28: ...9 3 BOTTOM VIEW DS1 DS3 DS4 DS5 DS7 DS8 DS6 ...

Page 29: ...R68 R69 R74 R37 C100 C101 C202 C207 C226 C11 C10 C9 C258 C60 C259 L7 C61 R33 C260 C32 R27 C38 R135 R137 R136 C45 R39 C33 C34 R169 R91 R81 R82 C128 R87 C135 R95 R93 C137 C140 R165 C39 R46 R42 R47 C51 L6 R52 R163 C214 R157 C253 C212 C211 R187 W8 C213 C215 C223 C224 R188 C254 R7 C6 C3 C4 L27 R5 R6 C5 C19 C20 C21 R14 R22 C29 C30 C204 C203 W6 C208 C206 R185 C252 R155 C227 C228 L26 R158 R3 C225 R190 C25...

Page 30: ... C284 C81 C286 C285 C87 C98 R150 R149 R213 R210 C265 C264 C86 C85 C172 C173 C287 C174 C164 R131 R206 R183 R172 C282 R203 R207 R204 R126 C160 R123 R121 C159 C276 R201 R113 R122 C175 C288 C290 C289 C292 C291 C116 C115 C188 C293 C187 C118 C281 C278 R174 R176 R175 C236 C237 C165 C166 R133 R132 C235 C233 C234 R171 C162 C155 R130 R129 R177 C103 R73 R65 C280 C109 C197 C107 D16 L21 MP7 D5 D6 L24 L25 C300 ...

Page 31: ...T HI LO T5 TMUT Q16 DTC144EU Q14 DTC144EU Q12 2SB1143 S Q15 FMW1 R5 T5 RCV SEND VR A BOARD D11 DSA3A1 IC8 TA7805F Q24 2SA1588 GR Q25 DTC144EU Q22 2SA1588 GR Q23 DTC144EU HV 5V VCC ANT BPFV Q1 3SK272 D10 XB15A308 D15 XB15A308 Q27 2SC4226 R25 T5 MPU IC1 HD6473847RH PTT DECODER MULTI RESET EEPROM D A BUFF GPS GATE CTRL BUFF MIC AMP RS CTRL T5 CTRL 5 REG REVERSE CONECT PROTECT PWR AMP LEVEL CONV FM DE...

Page 32: ...I NMEAI VCC VCC TAG SCN 5V 5V ATIS DSENC1 DSENC2 DSENC3 DSENC4 DSENC5 DSENC6 DSENC7 ATIS 5V 5V UP DN VCC PTT KEYM KEYM 5V 5V CH16 CH 5V NMEAI 5V VCC HANG BEEPM DIM3 RRXD RTXD DIM3 CONT1 CONT2 OENA 15 IC3 BU4094BCFV PDATA PCK RMUTM PTTM EXSTB S27 DS1 TTR5341 S28 S13 S14 S17 S16 S15 S20 S19 S18 S21 S23 S22 S24 S26 S25 C0 C2 C1 C3 S2 S1 S3 S5 S4 S7 S6 S10 S8 S11 S12 S9 1 2 3 4 7 6 5 10 9 8 11 13 12 1...

Page 33: ...1 RV 143 Q16 DTC144EU C93 0 001 R74 100 k C94 0 01 C95 22 P C47 0 1 C190 0 001 C189 0 001 DET 5V DET 5V R93 1 M R87 100 k R169 100 k R91 1M R95 1 M C137 0 1 R96 2 7 k Q21 2SC4116 BL R98 470 k C138 0 022 C139 0 022 C141 10 R102 1 k R101 15 k 5V VOL1 VBIAS C136 2 2 R66 3 3 C90 0 01 R69 220 C135 0 01 R99 150 k R100 15 k C140 0 1 R97 390 MMIC TMUTE HI LO TXDET VBIAS 5V VOL1 R73 8 2 k R82 2 7 k C128 0 ...

Page 34: ...IS UNIT W1 to MAIN unit J4 to LOGIC board J3 PTT MIC UP DN 16 9 MC1 C1 470 P R1 12 k W2 W1 S1 S2 R2 6 8 k S3 R3 15 k R4 33 k S4 PTT MICG MIC GND 1 2 3 4 PTT MICG MIC PTTG KEYM GND 1 2 UP_ON 2 0V DN_ON 3 0V 16 9_ON 3 8V ...

Page 35: ...8155 Fax 425 454 1509 URL http www icomamerica com Customer Service Phone 425 454 7619 Glenwood Centre 150 6165 Highway 17 Delta B C V4K 5B8 Canada Phone 604 952 4266 Fax 604 952 0090 URL http www icomcanada com A B N 88 006 092 575 290 294 Albert Street Brunswick Victoria 3056 Australia Phone 03 9387 0666 Fax 03 9387 0022 URL http www icom net au 146A Harris Road East Tamaki Auckland New Zealand ...

Page 36: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 13808IZ C1M 2001 Icom Inc ...

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