Read Sony ICF-CDK70 Service Manual online
ICF-CDK70
ICF-CDK70
29
29
6-12. SCHEMATIC DIAGRAM - POWER SUPPLY Section -
• See page 30 for IC Block Diagrams.
CN301
C957
C956
R968
R960
R967
C953
D950
C952
R959
Q951
R955
R950
R951
R952
R953
R954
C959
D952
R961
R962
C951
C950
D953
R313
R314
C117
R119
R120
R121
R219
C217
R221
R220
R222
C307
R122
Q202
Q102
R224
R124
R125
R225
R226
R126
R227
R127
C222
C122
R228
R229
C225
C223
C125
C310
R129
R128
C126
C311
C226
C128
R130
C228
R230
C227
C127
R958
R956
R957
Q952
C954
SP201
SP101
C909
C908
L902
L901
F901
JW901
C903
D903
D904
C904
C901
C902
D901
D902
C907
CN902
CN904
T901
CN901
CN303
C309
Q302
Q301
IC302
C123
C318
C316
Q953
Q950
R309
C219
C119
CN903
14P
0.1
100
10V
10
100
10
470
10V
UDZS-TE17
-6.8B
0.01
47
RT1P144C
-TP-1
10k
2.2k
2.2
k
2.2
k
2.2
k
10k
220
16V
MA111-TX
1k
1k
0.01
4700
16V
MC2836
10k
2.2k
1
50V
1k
4.7k
22k
1k
1
50V
22k
4.7k
100
100
10V
100
2SC3052EF-
T1-LEF
2SC3052EF-
T1-LEF
4.7k
4.7k
220k
220k
0
0
2.2k
2.2k
1
50V
1
50V
1k
100
47
10V
2200
47
10V
47
10V
100
1k
100
10V
10V
470
16V
16V
100
10V
0.22
2.2
0.22
2.2
1000
10V
1000
10V
1k
1k
1k
2SC3052EF
-T1-LEF
0.1
0.01
47
25V
3.15A
125V
0.01
IN4002-B5
IN4002-B5
0.01
0.01
0.01
IN4002-B5
IN4002-B5
100p
2P
2P
2P
4P
0.1
RT1N141C-TP-1
RT1P441C-TP-1
2200p
4700p
4700p
2SD2394-F
2SD2394-F
470
4700p
4700p
2P
POW_ON
A_MUTE
BUZZ
L_CH
R_CH
BUZZ
R_CH
L_CH
A_MUTE
POW_ON
R_CH
A-GND
L_CH
BUZZ
A_MUTE
POW_ON
AGC
D-GND
VT
U-GND
6V
TU-GND
M-6V
M-GND
STBY
RO
U
T
RIN
+
LIN+
RIPPLE
LOU
T
VC
C
BS
L
LN
F
RN
F
PR
E
GND
BS
R
POWER
GND
GND
POWER
(R-CH)
(L-CH)
(US)
(CND)
(AC IN)
POWER
TRANSFORMER
GND
B+
B+
GND
POWER AMP
Q301,302
STANDBY SWITCH
Q102,202
MUTING
Q951,952
REGULATOR CONTROL
+6V REGULATOR
+6V REGULATOR
(Page 23)
(Page 21)
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