Schematic Diagram - Main Board (2/2) - Sony ICF-CDK70 Service Manual

6-6.

SCHEMATIC DIAGRAM - MAIN Board (2/2) -

BASS
ENC+
ENC-
KEY2
KEY1
KEY0
CLK
DATA
R+6V
(Page 22) 3.3V
VCC
6V
GND
RESET
U-GND
4.5V
RMC VCC
CN305
13P
M2-
M2+ C350
M1-
M1+ C351
COM
SW3 R352
CD MECHANISM
DECK BLOCK SW1 R351
SUPPLIED WITH SW7 R350
THE ASSEMBLED
SW2 R349
BLOCK
SW6 R348
SW5 R347
SW8 R346
NC
ICF-CDK70
• See page 30 for IC Block Diagrams.
(2/2)
C116 220p
C216 220p
R303 470
R304 470
C303
C302
C301
100
10V
BASS
ENC+
ENC-
KEY2
KEY1
KEY0
R302 100
R301 100
C894
IC802
1
S-80828CNMC
NC
GND
RESET SIGNAL
VCC
GENERATOR NC
OUT
0.1
0.1
R342
47k
22k
SW3 Q354 Q355
2SA1365EF 2SA1365EF
22k
SW1
R338
22k
SW7 470
22k
SW2
22k
SW6
22k
SW5
22k
SW8
Q350 Q351
2SC3440-F 2SC3440-F
R334
47k
R114
INPUT SELECTOR,ELECTRICAL VOLUME 470k
IC301
R2S15904SP
BASS L2
BASS L1
NC
BASS R2
R214 470k
NC
BASS R1
TRE L
VOLIN_R C210
C115 470p
TRE R 4.7 50V
IGOUT_R
C215 470p
D_GND
VOLIN_L C110
C304 47p
CLK 4.7 50V
IGOUT_L
C305 47p C319 0.1
DATA
IN_L4
47 10V C106 1000p
REF IN
IN_L TU
C103 1000p
VCC
IN_L CD
0.1 C109 100p
A_GND
IN_L AU
C209 100p
R OUT
IN_R AU
C203 1000p
L OUT
IN_R CD
C206 1000p
IN_ IN_R
R4 TU
C320
0.01
C880
C881
100
0.01
C886 10V
C885 L803
220 GND
0.01 1 H
10V
IN
OUT
L802
47 H L801
10mH
C883
C882
100
R856 R857 C884 0.01
10V
1k 47k 0.01
Q350-357
MOTOR DRIVE
R343 R344 R345
47k 47k 47k
Q356 Q357
2SA1365EF 2SA1365EF
R339 R340 R341
470 470 470
Q352 Q353
2SC3440-F 2SC3440-F
R335 R336 R337
47k 47k 47k
23 23
KEY2
KEY1
C113 R117
0.1 22k
BASS
ENC+
C112 R116 R110
0.022 10k 47k
ENC-
KEY0
C111 JC101 R111 R109
0.047 0 100k 2.2k
C213 JC201
0.1 0
R211 R209
100k 2.2k
C212 R216
0.022 10k
R210
47k
C211 R217
C104
0.047 22k R103 R104
R108 470k 1
1k 2.2k
50V
C105 1 50V R107 47k R105 1k
C102 1 50V R101 10k
C108 1 50V R112 22k
C101
1
C208 1 50V R212 22k C201
50V
1
C202 1 50V R201 10k 50V
C205 1 50V R208 470k R205 1k
R207 47k C204
R203 R204 1
1k 2.2k 50V
Q954
KTC3205-Y
+3.3V REGULATOR Q955,956
REGULATOR CONTROL
R963 Q955
470 RT1P144C-TP-1
R969
10
C962
0.1 R965 R964
47 1k
C960 D951
0.01 UDZS-TE17-3.9B
+3.3V REGULATOR
Q956
C961
IC803 R966 RT1N144C-TP-1
220
S-812C33AUA 10k
10V
Q358
R355 2.2
KTA1273-Y
R354 2.2
R353 2.2
R361 R357 C352
100 0 0.1
Q359
R362 R363 2SC3052EF-T1-LEF
22k 10k
D308 Q361
MA111-TX 2SA1235-F
D307
MA111-TX
R360
D309 1k
MA111-TX
Q360
2SA1235-F
Q362
R364 2SC3052EF-T1-LEF
10k
Q358-362
B+ SWITCH
ICF-CDK70
CN413
9P
C869 1000p KEY2
C868 1000p KEY1
BASS
ENC+
ENC-
(Page 25)
C867 1000p D-GND
LCH
A-GND
C856
0.1
RCH
L-CH
L-OUT
R-OUT
R-CH
14
R_CH
A-GND
L_CH
BUZZER BUZZ
P-CD
A-MUTE C858 100p A_MUTE
A-STBY C857 100p POW_ON
AGC
D-GND
VT
(Page 29)
U-GND
6V
TU-GND
C861 100p M-6V
M-GND
1
R358
2.2k
S-GND
VT
VM
R359
2.2k
D-GND
M-GND
(Page
A
22)
B