Read Sony ICF-M770L / ICF-M770S / ICF-M770SL Service Manual online
ICF-M770L/M770S/M770SL
12
12
E C B
Q111
R157
R159
C147
C143
C144
R156
E C B
Q106
R158
R153
C145
D103
K
A
R177
C104
Q109
B C E
R105
D101
AK
C106
R104
Q102
B C E
Q101
B C E
R103
C140
Q108
B C E
R109
C141
JC107
JC105
R102
R163
R162
R179
R197
R198
R178
R199
R101
C152
Q103
B C E
R136
R174
C115
R137
R164
C118
Q110
B C E
R152
Q104
B C E
R139
C117
C116
R142
R143
C150
R108
R138
R160
R134
R118
R135
R140
C148
R151
R150
Q105
B C E
C142
C132
C133
R141
JC103
C135
C134
C128
R144
C136
C149
R148
R154
Q107
B C E
R149
R155
C138
C137
C139
R196
R195
R194
R193
R192
R191
R190
R189
R188
R187
R186
R185
R184
R183
R182
R181
R180
R111
R107
C108
R161
R120
D106
K
A
C113
R121
R124
R122
R123
R125
R126
R127
R128
R129
R130
R131
R133
R132
C124
C123
C122
C121
C130
R169
R171
R170
C109
R168
R175
R172
R167
R113
R147
JC106
R110
R106
R166
R165
R176
R173
AK
D102
IC101
IC103
IC102
IC104
S101
S102
S103
S104
S105
S107
S108
D105
D104
JW131
S114
JW127
JW128
JW130
JW129
S115
L102
C129
+
C146
+
T101
S111
L103
C151
+
C105
+
S113
15
1
JW119
JW120
JW115
JW114
JW113
JW121
JW122
JW123
JW124
JW125
JW126
JW132
JW133
JW134
L101
JW111
JW112
JW109
JW110
JW108
JW107
JW106
JW105
S117
S119
S118
S116
JW117
JW116
S109
S120
JW103
JW102
JW101
JW104
S106
JW135
LCD101
LIQUID CRYSTAL DISPLAY
KEY BOARD
(11)
11
1-684-570-
5
4
1
3
A
MAIN
BOARD
TIME SET
ON/OFF
S110
SLEEP
STANDBY
LIGHT
S112
SCAN
1
14
15
28
29
42
43
56
4 3
1 2
R116
R117
R114
R115
M770S/
M770SL
M770L/
M770S
(M770SL)
(M770L)
1
17
TUNE/
TIME
SET
6
OPERATION
7
5
4
3
2
1
BAND
PRESET TUNING
STATION SELECT/ PRESET
D104, 105
(LCD BACK LIGHT)
T101
4 3
1 2
HOLD
HOLD OFF
A
B
C
D
E
F
G
H
I
1
2
3
4
5
6
7
8
R112
X101
CLOCK
mb/CLOCK (M770S/M770SL)
(M770L)
5-5.
PRINTED WIRING BOARD – KEY Board –
•
See page 9 for Circuit Boards Location.
D101
I-4
D102
I-7
D103
I-6
D104
D-7
D105
D-7
D106
D-3
IC101
I-5
IC102
B-3
IC103
D-3
IC104
D-4
Q101
I-4
Q102
I-4
Q103
G-5
Q104
F-4
Q105
E-5
Q106
I-6
Q107
E-7
Q108
I-3
Q109
I-4
Q110
F-3
Q111
I-6
• Semiconductor
Location
Ref. No.
Location
(Page 10)
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