Icom IC-M32 Service Manual page 28

A
5V
DET
MOD
RSSIV
5V 5V
VOLIN
C191
BEPST
0.01 R1 R6
NOISV R8 R9
1 k
47 k 3.58V
1 k 10
BEPO
TEMPV
BEEP
VOLO
R10
R2
C1
AFV 2.2 k
100 k
0.1
CP1
C11
C10
0.047 2.2
B X1
R4 C3
R3
CR-766
C
10 k 47 k 220 P
FCON
CPU5V
C4 R5
C2 D1
18 P 330
HVC376BTRF
0.01
5V
IC1
µPD3140GS
1 20
VCC1 GND1
2 19
IN1 IN2
PLST 3 18
ENB VCC2
SCK 4 17
CLK XB
SDATA 5 16
DATA XI
L1
6 15
T1 XO
6.8µH
UNLK
7 14
LOK GND2
8 13
CP1 CP2
9 12
FI1 FI2
10 11 C7 C8 C9
FO1 FO2
0.01 2 P 2 P
2nd Lo
PCON PCON
MODC MODC
MOD
RSSIV RSSIV
NOISV NOISV
R5V
FI170
C170
IC170
CFWM450E
R173 0.001
TA31136FN
1.5 k
1 2
1 16
OSCIN MIXIN
3 4 5 2 15
OSCOUT GND
3 14
MIXOUT N-REC
4 13
VCC N-DET
C181 5 12
IFIN RSSI
0.1
6 11
DEC IFOUT
7 10
FILOUT QUAD
C179 8 9
R176 FILIN AFOUT
120 P
6.8 k
DET
R174
220 k
C178 C177 C176 C175
0.1 0.001 0.001
0.22
R175 C180
47 k 120 P
DET DET
BEPST BEPST
SQLO
VOLO
C194
VOLIN
0.01
5V
IC190
R193
470 M62363FP-650C
1 24
VIN1 VIN8
2 23
FCON
VOUT1 VOUT8
PCON 3 22
VPUT2 VOUT7
4 21
VIN2 VIN7
5 20
VDD GND
DAST 6 19
LD RESET
SCK 7 18
CLK VDAREF
SDATA 8 17
DI DO
9 16 SQLI
VIN3 VIN6
R192
SQLO
MCON 10 15
390 VOUT3 VOUT6
BEPO 11 14 BEPST
VOUT4 VOUT5
BEEP 12 13 BEEP
VIN4 VIN5
R194
C192 C193
100 k
10 0.01
BEPO
BEEP
AFV
B
C
CPU5V
VCO CIRCUIT
R7
47 k
MP20
1
2
3
C6
C29 C31
0.001
0.001
0.001
L21 C32
R22 L22
560 2.7µH 80 nH 1.5 P
Q20 R26
8.2 k
DTC144EUA
C5
15 P
C26
C24 C25
0.1 0.001 47 P
C33
D21
R23 220 P
MA77
1 k
L20
82 nH
D20
R27
MA2S077
8.2 k
R20
MOD
100
C34
R24 R25
1.5 P
100 k 100 k
C12
C20 C21 C22 C27 C28 C30 D22
0.001
0.001 9 P
9 P 39 P 0.001 0.001 HVU350B
R170
C44
RX : 3.57V R36
390
1 k 0.001
C150
R150
R5V
0.001
100
C171 C160
82 P 0.0056
R171
1.2 k
RX : 4.20V
C153 C152 R151 L150 C151 R121 L122
X170
0.022 3.3 k 10 k 4.7µH
0.001 0.82µH 56 P
CDBC450CX24
R172
470
C174
0.001
Q150
3SK299
C142 C140
C154
12 P 12 P
0.001
RX : 0.91V
C143 R134 R133 C141
0.001 120 10 k 5 P
R155
1.5 k
R152
C159
R156 R154 C158 C157
1.5 k
0.01 470
100 k 0.001 0.022
R131
1 k
FI151 FI150
C156 R153
FL-363 21R15AB
RX : 1.45V
0.001
1.5 k
Q151 C135 R132
0.001 10 k
2SC2714 Y
C155
6 P
BEEP
AFV
CPU5V
11 - 2
T5V
V5V V5V R53
100
R32
R31
390
680
C52 R55
C50
3.3 k
0.001 0.001
R29
R30 C36 L23 R33 L24
390
68 k 0.001 0.1µH 39 k
0.1µH
C38 C40
0.001
15 P
Q23
C37
R52
2SC4215 Y
0.3 P
4.7 k
C39
12 P
Q21
2SC4226 R25
R100 C51
Q24
R34 1
22 P
2SC4215 Y
R28 470
C35
180
0.001
D50 R56
MA77
1.2 k
R35 L25
C41
Q22
68 k 0.1µH
0.001
2SC4226 R25
R50 C53
0.001
1 k
C43
C42
22 P
5 P
D51
D23
MA77
R65
HVU350B
150 k
Q25
PCON
2SC4215 Y
R66 C56
47 k
0.01
R96
R5V 220
C110 C109
R120 C120 L95
0.001 470 P 0.001
2.2 k 0.01 0.1µH
C108
47 P
C121
L121 L120
Q90
56 nH 82 nH 0.001 RX : 0.79V
1st Lo C131 2SC4226 R25
L130
82 nH 12 P
C123 C122 R95
C130 C107 C106
C133 C132
10 P 15 P 5 P 0.01 470 P 100
13 P
33 P
L133 C138 C137 C134
80 nH 13 P 2 P 1 P
R5V
D130
MA77
L131
C139 L132 R130
33 P 80 nH 10 k 82 nH Power Save OFF : 4.96V RX : 4.96V TX : 4.93V
Q221 Q222
Q220
2SA1588 GR 2SA1588 GR 2SA1588 GR
R220 R222 R224
10 k 10 k 10 k
BPFS
R221 R223 R225
Q223
4.7 k 4.7 k 4.7 k
DTC144EU
C220 C221
C222 C223
22
C136 0.01
0.01 0.01
0.001
BPFS
5V
AFV
CPU5V
TXMS
T5V
R54
33
Q351
DTA144EUA
L50 EP2
T5V
0.1µH
R386 C381 C61 C62 R72 L53 C63 C67
10 k 0.001 33 0.001 47 18 nH 470 P 470 P
Q50
2SC4226 R25
C54 Q54
15 P
RD07MVS1
Q53
L51
82 nH RD01MUS1
C65
100 P
C75
R384
5W TX : 3.02V
2.2 k 22 P
C58 1W TX : 2.33V
R57 C55 0.1 R71
100
82 24 P
R73
R75
R67
1 k
100
100 k
T5V
R69
IC50 15 k
5 R68
1 NJM2125F
100
4
3
C57 C59 R70 C64 R74 C66
C60
2
15 k 0.001
0.1 470 P 0.001 10 k 0.01
RX 3.21V
R381
C99
10 k C97 C96 L91 C94 C92
2 P 12 P 82 nH 12 P
1 P 47 P
R383
12 k
R94 D92 R115
C105
33 k MA77 47
D353
[M31]
MA728
R90 L92 C95 C93 C115
R93 10 k 82 nH 33 P 4 P 0.001
C104 C102 L94 C100
[M31]
1 k 80 nH
47 P 12 P 12 P
C98
R91
1 k 0.001
C101 L93
C103
D93 33 P
80 nH
5 P
MA728
CH16 RX : 4.96V
CH88 RX : 0.00V
BPFS
T5V
5V
Power Save OFF : 5.00V
Q230
Q225
2SB1132 Q
2SB1132 Q
5V VCC
R385 1 k
R227
4.98V
10 k
1 5
CTRL VIN
2
GND
3 4
Q231
NB VOUT R230
Q224
27 k XP6501 AB
IC220
XP6501 AB
C226 NJM2870F05
C224
R228
0.01
22 22 k
CPU5V
R231 C231
R226 C225 C227 C228 C229
C230
1 M 1
2.2 k 0.22 22 0.001 0.001 10
R232
1K
LEDS
AFV
CPU5V
MAIN UNIT
VCC
T5V
R76
150
EP3
C68
C73
47 P L58
0.001
2.7 µH
L55
31 nH
L56 L57 C72 L80 C74 C80 L81 L82
CP80
8.5 nH 22 nH 0.001 50 nH 0.001 0.001 30 nH 32 nH
ANT
D52
C84 C89
1SV307
11 P 7 P
R380
MP50
15 k
C71 C81 C82 C83 C85 C86 R80
C70
22 P 9 P 82 k
91 P 30 P 18 P 18 P 24 P
D91
RB706F
R382
2.7 k
C380
0.001
5W TX : 2.29V
1W TX : 0.65V
R81
L90 C87
22 k TDETV
0.5 P
50 nH
C88 R82
0.001 10 k
D80
RB706F
D90 C91 C90
1SV307 10 P 9 P
T5V
VCC
VCC
7.5 V
VCC
CP241
GND
C240
CP240
0.001
T5V
5V
R240 R241 R242
680
100 680
VCC
Back-Light ON : Back-Light ON :
AF Mute OFF :
3.91V 3.82V
7.48V
AFV
DS240 DS242 DS244
FY1101F-TR
SML-311YT SML-311YT
DS241 DS243 DS245
R233 R235
SML-311YT SML-311YT
330 k FY1101F-TR
2.2 k
Q240
CP245
DTC144EUA
R245
1 k
C233 R236
C232 R234 150 k
0.01
0.1 3.3 k
AFV
Explanatory notes
+B LINE
TX LINE COMMON LINE
RX LINE