Service manual
– 17 –
CD-C831W
Figure 17 SCHEMATIC DIAGRAM (2/9)
7
8 9 10 11 12
CNP303
R640 47K
R642
47K
6
02 1.5K
C604
4.7/50
6
04 1.5K
C606
4.7/50
6
06 1.5K
608 1.5K
C602
4.7/50
C654
4.7/50
C652
1/50
C651
3.3/50
C653
4.7/50
C650
3.3/50
C620
10/50
ZD602
MTZJ2.4B
R641
47K
R653
220K
R655
5.6K
R651
680
R157
220K
L103
100µH
Q121
2SC3331
R153
10K
R630
330
(1/2W)
C628
0.22
C
614 0.22
C
612 0.033
R612
22K
0
C616
10P
R626 2.2K
R624
330
C618
0.022
C631
390P
C632
390P
R632
22K
R633
22K
R634
22K
R652
220K
R650
680
R654
5.6K
R656
1K
L104
330µH
R168
12
R162
47K
R164
4.7K
C150
0.0039
R167
100K
R166
47K
R160
150
R631
22K
R638
220K
R637
220K
JK601
9
8
7
6
5
4
3
2
1
CNP701
R158
220
Q124
2SA1015 GR
Q128
KTC3203 Y
C151
0.027
(ML)
C152
47/25
Q126
KRC104 M
IC101
AN7345K
PLAYBACK AND
RECORD/PLAYBACK AMP.
R141
56
R135
8.2K
C129 470P
R139 560
C141
1/50
C128
3.3/50
C131
0.001
C146
220/10
R146
10K
C135 0.068
C139 0.0033
R145
10K
R137
6.8K
C145
22/25
C140
0.0033
C130
470P
C142
1/50
R140 560
C132
0.001
R138
6.8K
C134
22/25
C136
0.068
R142
56
C133
22/25
9
8
7
6
Q122
2SC3331
C154
47/16
R156
220K
C630
0.022
D601
1SS133
D602
1SS133
CNS701
P20 1 - D
TO DISPLAY PWB
P18 1 - E
TO POWER SECTION
7
6
8
4
5
MAIN PWB-A1(1/2)
SP_DET
SP_RLY
+5V
VF2
–VF
VF1
–15V
M_12V
REC_R
+5V
–15V
SPA_SIG
A_GND
M_12V
D_GND
REC/PLAY
T_BIAS
T_T1 T2
S_MUTE
HI_CUT
SP_RLY
SP_DET
SPN_P
VF2
-VP
VF1
DO
CLK
CE
DI
0V
0.7V
0.7V
0V
0V
11.6V
0V
0V
0V
0V
VIDEO
IN
0V
Vcc
ALC
GND
ALC
RIPPLE
Nor/CrO2
+
+
–
–
Hich=CHROME
56K
56K
0V
+B
–B
–B
+B
DI
A_12V
D_GND
SW601
SPAN SELECTOR
FM/AM(KHz)
CLK
CE
DO
TUN_L
A_GND
TUN_R
–B
+B
+B
–B
+B
+B
+B
+B
+B
–B
1
2
P24 6 - A
TO TUNER PWB
A
L
CD SIGNAL
L-CH
R-CH
R154
10K
REC_L
R134
68K
11.7V
0V
11.6V
3
17
15
16
10
9
8
7
6
5
4
3
2
1
11
12
13
14
15
16
17
18
19
20
21
22
10 11 12
17
18
1
9
16
15 14 13
R136
8.2K
MUTING
MUTING
SWITCHING
BIAS
BIAS OSC
CNS303
Q650
2SC3331
Q651
2SC3331
50/9
100/10