Service manual

CD-C831W
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• NOTES ON SCHEMATIC DIAGRAM can be found on page 12.
Figure 18 SCHEMATIC DIAGRAM (3/9)
F832
T500mA
L 250V
D821
1SS133
D820
1SS133
C909
2200/50
R830
820 (3W)
C910
2200/50
C918
47/50
D904
1SS133
D903
1SS133
D906
1SS133
Q907
2SC3331
Q906 2SC3331
R928 1K
R930
10K
Q904 2SC3331
R93
56K
C938
47/50
R925
0.1(1W)
D833
1SS133
D832
1SS133
C828
0.1
(ML)
C827
0.1
(ML)
C833
0.1
(ML)
Q822
KIA7806P
31
Q821
AN78L05
1
Q824
KIA7812P
3 1
R827
22K
C826
47/25
C829
3300/25
R825
33
R832
22K
C825
22/25
C824 0.047(ML)
IC901
STK407-040B
POWER AMP.
Q823
KTD2058 Y
C904
10/50
R912
100(1/4W)
C907
10/50
R916
1K
R917
56K
C916
15P
C915
120P
C917
47/50
R918
680
R921
22K
R922
680
R923
56K
C924
15P
R924
1K
C923
47P
D803
1N4004S
D
1
D
1
D804
1N4004S
1234
5
6
7
8
9
10
11
12 13
14
15
Q905
2SC3331
R931
10K
R929
1K
C921
0.022
R939
56K
C920
0.022
R926
0.1 (1W)
R803
47K
C802
100/35
ZD801
MTZJ6.2A
C803
R802
2
C830
47/25
C821
0.047(ML)
R837
10K C832
0.1(ML)
C831
47/25
2
C911
100/50
C912
100/50
R913
100 (1/4W)
Fusible
R966
22K
C905
220P
C902
220P
R903
100K
R901
100K
C903
1/50
C901
1/50
R904
68K
R902
68K
R905
1K
R907
1K
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
2
3
R801
12K
NC
NC
A_GND
D_GND
M_12V
–15V
SP_RLY
A_GND
L
R
SP_DET
CD_GND
M_GND
A_12V
+5V
–VF
VF2
VF1
CD_+B
(2Ch)
+
+
–
–
–Vcc –Vcc +Vcc
Ch1
Ch2
Ch1 Ch2 Out Out
+B1
+B2
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
–B
–B
CNS806
P21 12 - E
TO DISPLAY PWB
MAIN PWB-A1(2/2)
FM SIGNAL
P16 2 - D, P17 12 - G
TO MAIN SECTION
D
T
Fusible
R
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR