Read Sony ICF-CD853V Service Manual online
ICF-CD853V
20
20
5-8.
SCHEMATIC DIAGRAM – MAIN Section (1/2) –
•
See page 24 for IC Block Diagram.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
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] : CD PLAY
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
C225
C124
C125
C313
C314
R
1
3
4
R
2
3
4
C226
C126
R131
C224
R232
D304
R315
C316
R133
R233
Q207
Q107
CN303
R
3
3
1
C
3
1
2
R
3
1
3
C
1
2
3
R129
C221
C222
R228
R
1
2
8
C
1
2
2
C121
R127
Q103
C116
R138
C115
R124
Q203
R224
C215
C216
R238
R125
R225
C
3
1
0
R227
KH951
TM901
TM902
C902
R903
R901
C903
D901
D902
D903
C904
C905
R
9
0
4
D905
D906
C907
C908
C909
D907
D908
D909
D910
C910
R902
D
9
1
1
CN305
CN901
R951
R956
R953
R954
R955
C953
D951
C954
C955
C956
R958
C957
C958
C959
R966
R960
D953
C961
C962
C963
C964
R964
C967
C968
D954
C969
C970
CN301
CN302
C228
C128
R
2
2
6
R
1
2
6
C
3
0
9
C
3
0
8
R
3
1
2
R
3
2
3
Q305
C326
C325
Q301
R309
C307
D303
R220
C217
C117
R120
R229
R308
Q206
Q106
C321
C322
L301
C318
C319
C320
Q302
R109
C104
R102
C103
R104
R112
R108
C302
C106
C107
R110
R114
Q101
Q102
R202
C203
R204
R212
R208
R213
R206
R113
R107
R106
D301
C301
R207
R209
C205
C207
R210
R214
Q201
Q202
C72
R318
R301
R21
R20
C73
R317
R329
R132
R961
D
3
0
5
R
3
2
4
R
3
2
5
R
3
2
6
D
3
0
6
D
3
0
7
D
3
0
8
R
3
2
7
C
7
5
C
7
4
C49
R303
R304
C105
C206
R122
C119
C219
R222
C327
R330
R
3
2
1
R
3
2
0
R
3
1
9
C324
C323
C
9
0
1
C
9
5
1
C
9
5
2
R
9
6
2
C965
C966
R322
C317
Q108
Q208
R137
R235
R136
C127
R237
C227
R328
CN304
R236
T901
J301
SP201
SP101
R135
RV301
S301
R311
Q303
C
2
2
3
IC302
R231
Q951
Q952
D952
Q953
C960
R965
Q955
JC
3
Q1
C204
Q304
C328
S302
1000
6.3V
6.3V
100
10V
10V
1000
6.3V
6.3V
1000p
10 50V
1
0
0
1
0
0
0.01
0.01
2.2
100
10V
10V
22k
1SS119
0
10
50V
1k
1k
KTC3203Y
KTC3203Y
4P
1
0
k
4
7
1
0
V
1
k
1
0
00
p
10k
0.47
50V
47
10V
220
2
2
0
4
7
1
0
V
0.47
50V
1k
2SC4081-T106
0.22
6.8k
4700p
10k
2SC4081-T106
10k
4700p
0.22
6.8k
4.7k
4.7k
1
0
0
1
0
V
1k
4P
0.47
100k
10k
47 35V
1SS119
1SS119
1SS119
47
35V
47
35V
4
.7k
1SS119
1SS119
0.1
0.1
0.1
1N4002B
1N4002B
1N4002B
1N4002B
0.1
220k
M
T
Z
J-T
-7
7
-22
B
7P
4P
1
1
470
1k
470
0.01
MTZJ-T-77-3.9A
220
10V
10V
0.01
470
10V
10V
220
0.01
220
10V
10V
0.01
220
100
MTZJ-T-77
-4.3B
0.01
220
10V
10V
0.01
220
10V
10V
100
0.01
220
10V
10V
UDZS-TE17
-4.3B
0.01
220
10V
10V
20P
14P
0.1
0.1
4
7
k
4
7
k
4
7
0
0
p
2
2
0
0
p
1
0
k
4
7
k
2SB1013
2.2
50V
50V
220
10V
10V
DTA144EUA-T106
100k
4.7
50V
50V
DAP202U-T
-106
1k
1000p
1000p
1k
10k
2.2k
2SD1757K
2SD1757K
47
10V
0.01
100p
100p
100p
DTC144EUA-T106
1k
47
10V
4.7k
4.7
50V
50V
3.3k
220k
470k
220
10V
10V
1000p
1000p
470k
220k
2SC4081
-T106
2SC4081
-T106
4.7k
4.7
50V
50V
3.3k
220k
470k
220k
470k
220k
470
470k
1SS119
4.7
50V
50V
470
1k
4.7
50V
50V
1000p
470k
220k
2SC4081
-T106
2SC4081
-T106
1000p
47k
1k
47k
2.2k
0.01
470
47k
22k
1k
1
S
S
1
1
9
1
0
0
1
0
0
1
0
0
1
S
S
1
1
9
1
S
S
1
1
9
1
S
S
1
1
9
1
0
0
1
0
0
0
p
1
0
0
0
p
47
10V
47
47
4.7
50V
50V
1000p
10k
4.7
50V
50V
4.7
50V
50V
10k
100
10V
10V
47k
4
.7
k
4
.7
k
4
.7
k
47
10V
0.01
4
7
3
5V
0
.0
1
6
8
0
0
1
6
V
1
k
1000p
1000p
100
470
10V
10V
2SC4081
-T106
2SC4081
-T106
470
100k
1k
1
470
1
2.2k
7P
1k
100k
20k/20k
1k
DTA144EUA-T106
1
0
0
0
p
BA5417
2.2
2SD2396K
2SD2396K
MTZJ-T-77
-6.8B
KTC3203Y
470
10V
10V
100
2SD596
0
2SA1576A
47 10V
2SA1576A
220
10V
10V
A1
A2
A3
A4
A5
A6
A7
A8
P
R
EG
ND
2
P
REG
N
D
1
N
F R
R
IN
L IN
N
F L
FILTER
S
TBY
PO
W
ER G
ND
B
S L
L OU
T
V
CC
R
O
U
T
BS
R
(NC
)
(1/2)
D901-903,905-910
RECT
POWER
TRANSFORMER
(AC IN)
1
7
(L-CH)
(R-CH)
Q107,207
HEADPHONE
SWITCH
Q108,208
BUFFER
-2
-1
VOLUME
MEGA BASS
OFF
ON
1
7
Q201,202
AMP
AMP
Q101,102
MUTING
MUTING
INVERTER
B+ SWITCH
Q103,203
BASS BOOST
SWITCH
SWITCH
Q302,303
STANDBY
INVERTER
POWER AMP
+3.3V REGULATOR
+6V REGULATOR
+3.9V REGULATOR
B+ SWITCH
+3.9V REGULATOR
CD LID
OPEN/CLOSE
2
1
DETECT
1
µ
H
(Page
17)
(Page 21)
(Page
23)
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