Main-E Unit - Icom IC-M401E Service Manual

11-2 MAIN-E UNIT

5V
Q1 VCO5
2SC4116 L3 L4
2.7µH 80nH
R22
R21 R41
C43 C44
1k
1k D3
560 0.22 0.001
C42 HVC350BTRF
R24
47p
C21
560
R23
10
47k
Q2 DTC144EUA
D2
C23
D1 MA77
0.001
MA77
C22
R25
0.01
100
R5 C29
C28
470p
0.001
C24 C25
470p 10
R26 R28
C27
100k
33k 1
MOD
R27 C26
22k 0.01
R5
5V
R5
C2
100k
0.01
R1
1k
PSTB
IC1 µPD3140GS
R2
1k
PCK 1 VCC1 20
GND1
2 IN1 19
IN2
3 ENB 18
R3 VCC2
4 CLK 17
1k XB
PDATA
5 DATA 16
XI
6 T1 15
XO
7 LOK 14
GND2
8 13
CP1 CP2
12
R4 R6 9 FI1
FI2
10 11
1k 330
FO1 FO2
UNLK R7
C7
1k
0.001
C1 R8 R9 R10
0.022 10 2.2k 10k CP1
C4
C5
0.047
2.2
R323
39k
R328
8.2k
MOD R327 R326 R324
47k 15k 10k
AF5
C323 R325 C293 C292
0.0027 10k 0.001 0.01
5V
C316 R313 R309
10 150k 100k
C313
IC8
0.0047
NJM4558M
R315 C306
R317 R316 R312
JPW 56p
1 8 82k 82k 150k
2
7
3 6
4 5
R311
C312
4.7k
820p
C315 C314
R318
100k 0.01 56p
C349 C416
R417
0.001 15k 0.001
5V
C346 C347 C331
J6 R416
0.001 82p 0.01
82k
SP+ SP+
2 1
SP+
4 3
SP– SP–
SP–
5
6
BEEPM BEEPM
BPLVL BPLVL
8 7
VCC VCC
10 9
C348 C332 C333
82p 0.001 0.01
12 11
5V
C342 C343
5V
0.001 0.001
14 13
RCV RCV
R314
GND 560k
16 15
SEND SEND
D41
GND DA204U
18 17
GND C334 C335
22p 0.001 BEEPM
TMUT TMUT C311
20 19
0.1
GND
TXDET TXDET
to LOGIC-E
22 21
board J4 ATIS ATIS
OPC-1046
HI/LO HI/LO
24 23
R341
22k
SQLV SQLV
26 25
PTT PTT
28 27
BPFV BPFV
30 29
PTTM PTTM
Q41
32 31
RMUTM RMUTM
DTC144EUA
34 33
BPLVL
SQL SQL
36 35
GND
UNLK UNLK
38 37
PDATA PDATA
PSTB PSTB
40 39
PCK PCK
MAIN-E UNIT
C340 C339 C341 C338 C336 C337
47p 47p 47p 0.001 0.001 22p
5V
R55
C55
100
0.001
R44 R51
D4
100
680
R31 3.97V
HVC350BTRF
470
C57
R45
L6 R56 L7 D7
C45 C49 C52 C58
390 2.45V 470p
0.1µH 27k 56nH MA77
1.5p 470p 470p 33p
R52
C56
68k
C51 12p
2.35V
0.5p
C41 R42
Q7
39p 8.2k
2SC4215
Q4 Q6
2SC4226
2SC4215
L1
C47 R46 C48 C31
3.28V D8
0.001 180 470p 0.1µH
470p MA77
R32
C33
68k
MP1
R43 22p
0.89V C32
8.2k
5p
Q3
1 2 3 4 5 6
C46 2SC4215
1.5p
Q5
L2
2SC4226
C36 R34
56nH
0.001
68
C3 R36 C35 C34
0.1 56 27p 27p
R5
R206
R205
390
3.67V 1k
X1 C210
R11 CR-768 0.001 X2
C205
(21.250 MHz)
330 CDBCB450KCAY24
100p
R207 C209 C208
C11 C13 R208
1.5k 0.01 10
12p 18p 1.5k
IC2 TA31136FN
C12
TZC3R100A110R00 1 OSCIN 16
MIXIN
2 OSCOUT 15
GND
3 MIXOUT 14
N-REC
4 VCC 13
N-DET
5 IFIN 12
RSSI
6 DEC
11
IFOUT
7 FILOUT 10
QUAD
C215 C213 8 FILIN 9
R221
AFOUT
0.1 0.001
470k
R219
FI3 470
C212 C211
CFWLA450KFFA
270p 270p
C219 C218 C220
I O
0.001
0.001 0.1
R218
R213 R212
33k
33k 820
4.95V C216
0.1
2.73V R215
R214
47k
22k
R294 R291
10 5V 8.2k VBIAS
C217
R216
22p 8.2k
R292 R293 C291
22k 18k 10
5V
AF5
VBIAS
IC7
R305 R301
100k 100k
NJM4558M
AF5 IC11
1 8
2 7 NJM2125F
C304
3 6
0.01
4 5
C305 C303 R303 C302 CP3
R307
270p 2.2k 0.01
5.6k 0.1
MICAF
R302
R308
R304
10k
390k
68k
C221 C222 C223
R222
0.22 0.22 0.1
R306 12k
C301
1k 0.1
VCC
C415
0.0027
DSC
5V
R415
39k
C377
47p C372 C371
220p 10p
RL1
FTR-P3CP012W1
C378
0.001
D43
1SS355
SP–
HVS
SP+
HVS
VCC
C376 C375 C374 C373
220p 10p 220p 10p
VOL2
VCC
C352 C355
2.2 47
C359
R354 IC9
47p
15k
LA4425A
R351
15k
C356 R356
C353
C351 R353 47 4.7
1 5
1
0.01 1M
4
2
C357
0.1
3
R352
R355 C354
1.2k
3.3M 0.001
C358
C361 C362 C363 C364
47p
0.001 47p 0.01 47p
Explanatory notes
TX LINE VOLTAGE LINE
RX LINE COMMON LINE
11 - 2
R94
R93
C81
22 22
0.001
R85 R91
10 2.2k
L16
R83
C93
68nH
2.2k
0.001
R82 L15 C101 L17
NL 252018T-082J 22p NL 252018T-047J
39 C86 R86
C91 C94
0.001 10k
18p 3p
C102 C103
18p 39p
C83 L14
47p Q10
47nH
Q12
R92
2SC4226
100
2SC3775
R84
390
R81
C84 C85 R87 C87
1k
18p 18p 10k 47p
R88 R95 R96 C95 C96 C97
C82 C88
1k 39
0.001 100 0.001 0.001 47p 470p
L11 L12
C75
0.1µH 0.1µH
0.001
R74
2.2k
C77
R5
4p
C74
0.01
R5
R8
C184
7.53V
R182
0.01
R201
10
1.5k
1.16V
R202
C203 C202
470 C188 C187 L42 C185 C186 R183
0.001 0.022
R203
0.001 0.1 0.82µH 2.5p 56p 1k
C204
100k
0.01
R204
1.5k
Q22
C189
3SK131
C195
FI2 FI1 0.001
Q23 0.001
FL-363 21R15AB
R185
2SC2714 (21.7 MHz) (FL-368)
1.5k
C193
6p
R233
DEMOD
1k
470mVp-p at 1 kHz –3 kHz DEV C231
0.22 C235
R237 C236
10
2.7k 0.1
R223
2.7k 0.80V at –8dBµ RX
R234
R224
R231 470k
CP5
10k 15k Q31
C233 C234
2SC4116
5 0.022 0.022
R225
1
68k
4
R232
3 C237
15k
2.2
2
C232 TX 4.98V
R227
R226
33k 0.1 RX 0.00V
12k R235 R236
220k 390
MICAF
VCC
DSC
5V
VOL1
VOL1
13.79V
FI4
NFE31PT152Z1E9L
HV
1 2
CP18
C370
3 C367
C368 C369 to DC POWER
0.1
0.001 47p 47
GND
CP19
W2
2 D42
1
OPC-1041A
DSA3A1
SP+ CP16
3 SQL BOARD
FI5
NFE31PT152Z1E9L C345 C344
to EXT SP
470p 470p
SP– CP17 R1
10k-B
W1
GND
1 1
SQLV
2 2
5V
3 3
J5
GND GND
9
1 1
SQLV SQLV
2 2
5V 5V
W1
3 3 R1 10k-A
GND GND GND
4 4
1 1
GND GND
GND
5 5 2 2
VOL2 VOL2
6 6 3 3 VOL2
VOL1 VOL1
7 7 4 4
HVS HVS
8 8 5 5
10 VOL1
HVS
OPC-1099
VR BOARD
T5
IC3
RA35H1516M
VCC
R123
820
T5
C146 C107 C108 C109 C110
0.1 47p 470p 0.001 22
L18 C125
NL 252018T-047J 0.001
1 2 3 4
CP11
CP14
CP13
C104 CP12
18p R121
TX H: 3.44V 2k
C145 C121
TX L: 2.74V R97 C100 C140 R104
18p
47 10p 220p 0.1 470
R126
2k
C98 C99
T5
47p 470
Q16 C122
0.001
FMW1
C112 C113 D12
1 2
C105 C106
470p 0.1 HSM88ASR
R103
22 0.001
1M
C118
Q13 0.001
2SA1577
5 4 3 R114
Q15
R113
470
10k
DTC144EUA
R110
5.6k
TMUT C117
C116 R112
470p
470p
2.2k
R107
C115 R111 C119 R115
0.001 3.3k 10k 0.001 15k
R5
R8
R177 C182 R176
22k 0.001 1.5M
C183 C175 L38
L39 C176
LS-440
6p LS-440 0.75p 0.5p
C178
C173
10p
10p
C177 C174
R178 R181
R155
10k 100k 3p 2p
100k
R172 R171
100k 100k
D27
D28
R173
1SV214
1SV214
10k
C163
C179
CH16 RX: 3.86V 0.1 0.001
CH28 RX: 6.70V
R168 R167
JPW JPW
5V
VBIAS
R252 R257
R241 R243
1M 2.7k
1M 1M
R412
C252
22k
1
5V
Q61
TX 0.00V 2SC4116
R262
IC4 SQL OPEN 5.01V R261
100k 10k
TC4W66FU SQL CLOSE 0.00V
PTT
1 8
2 7
3 6 MMIC
R414 R413
4 5 MICAF R246
2.2k 33k
100k
Q34
C241
DTC144EUA
0.01
D31
1SS355
SQL
VCC
R381
DSC
18
5V
R8
R5
T5
IC10
C381
10
5.02V TA7805S
2 1 VCC
5V
O I
G
RX: 7.60V
3
TX: 0.00V C386 C385 C384 C383 C382
100 0.01 0.1 0.1 0.01
RX: 5.01V
Q55
TX: 0.00V
2SB1132
R8 VCC 5V
RX: 0.00V
T5
TX: 4.94V
Q56
Q53
2SC4116 Q51
R386 2SA1577
2SA1588
3.9k
R5 5V T5 5V
R384 C390 C389 C388 R382 C387
C392 C391
R387
10k 0.1 10 0.001 10k 0.1
10 0.001
4.7k
R385 R383
2.2k 560
Q54 Q52
DTC144EUA
DTC144EUA
SEND
T5
VCC
L20 D14 L21 L22
C126
LW-25
XB15A308 0.001 LA-243 LA-243
CP15
L19 R124
LA-243 82k
C127 C130 C133
18p 27p 5p
R122
2k
C124
L31
18p
LA-243
R127
2k
C144
0.001
C123 D21
C141 C142
0.001
22p XB15A308
27p R141
15
D13
HSM88ASR
TX H: 1.9V
TX L: 1.99V
C137 R125
0.001
100k
Q17
DTC144EUA
R116
82
C134 C135 C138 C139
0.01 22p 0.01 22p
C120
0.001
6.70V
R147
100
C157 C156
0.001 0.1
R153 R150
1 39k
W2
L36
LS-440
R151 C158
47k 0.01
C164
R154
3p
390
3.66V
C162 Q21
C154 L35 C150
10p 3.5p LS-440 10p
3SK131
1.64V
R149 C152
R146
10p
100k 100k C149
8p
D26 C161 C160 C159 R152
D25
1SV214 3p 0.1 0.001 150
1SV214
D24
1SS375
C153
0.001
R166 R165 R164 R163 R162 R161
JPW JPW JPW JPW JPW JPW
R8
5V
C414
0.1
T1
12T01
C413
0.1
R411
560
C411
47p
VCC
R8
R5
T5
J7
DSC+ 5 DSC+
1 1
DSC– DSC–
2 2 to DS-100
DATAS–
VCC VCC
3 3
GND GND
ICF3 GND
C412 4 6 4
1 8
0.1
DATAS+
2 9 7
to
LOGIC-E
DATAM–
board J1
3 10 6
DATAM+ DATAM+
1
4 5
DATAM–
2
DATAS+
3
DATAS– GND
4
ICF3
5
GND
6
R401
100
PTT
J4
PTT PTT
5
1 1
MICG MICG
2 2
MIC MIC
3 3
GND GND
4 4
6 SMART MIC
MC1
HM-132
C401 C402 C403
HANG
0.001 470p 0.001
to 1
KEYM
LOGIC-E
2
GND
board J3
3
to ANT
VCC
DSC–
DSC+