Sharp CDC2900 Service Manual - Page 27

Power, Pwb-a2

Page 27 highlights

R924 56K 1K C924 15P CD-C622/C2900 CNP804 CNS804 C923 14 15 47P R946 +B 330(1/2W) RL901 R939 56K R938 56K Q906 2SC3331 C938 47/50 +B C936 C937 0.1 0.1 (ML) (ML) R936 56K R934 4.7 R937 4.7 +B D907 2 1SS133 1 Q908 3 KRC107 M R941 4.7K R942 4.7K R949 330(1/2W) R960 22(1/2W) +B 2 D960 1SS133 C961 47/50 1 R961 15K C960 10/50 R963 +B 1K R962 68K Q960 2SC3331 WTM801 1 2 3 4 5 C954 100/50 C956 100/50 8 7 6 5 4 3 2 1 2 1 M M901 FAN MOTOR HEADPHONES PWB-A5 1 5 FW801 JK970 HEADPHONES SP_REAR_L-CH SP_REAR_R-CH SP_REAR_L-CH_GND SP_REAR_R-CH_GND 16 OHMS/CH SP_L-CH SP_R-CH SP_L-CH_GND 6 OHMS/CH 622 ONLY SP_R-CH_GND SO901 SPEAKER TERMINAL +B 2900 ONLY D801 TS6B04GM F802 4.0A/125V C808 C807 0.047 0.047 D803 +B2 1N4004S +B D804 1N4004S -B 2900 ONLY D806 1N4004S D805 1N4004S ZD802 MTZJ30B C806 C805 0.047 0.047 F803 4.0A/125V F805 2.0A/250V 1N4004S D807 C812 220/50 220/50 1N4004S C813 C811 220/50 C804 47/50 C803 47/50 R803 47K D808 R806 2.2K R802 47 ZD801 MTZJ6.2A C802 100/35 R801 12K Q801 KTA1274 Y VOLTAGE REGULATOR D809 1N4004S 11 22 33 44 55 66 77 88 CNP802 CNS802 +B CNS801 CNP801 D802 1SS133 C801 0.0047 11 22 2900 ONLY RL801 T.F T801 POWER TRANSFORMER SO801 AC INPUT AC POWER SUPPLY CORD AC 120V/60Hz P29 12 - E TO DISPLAY PWB CNS806 D818 +B 1SS133 D815 1SS133 Q802 2 KRC107 M 1 +5V 1 2 AC _RLY_CON 3 3 UN_SW_5V 4 D_GND CNP806 C815 1000/6.3 C814 10/16 R808 220 Q803 AN78L05 3 1 2 D810 1SS133 D811 1SS133 D816 C810 1SS133 470/25 D813 1SS133 D812 1SS133 C809 0.047(ML) T802 POWER TRANSFORMER +B POWER PWB-A2 7 8 9 10 11 12 Figure 27 SCHEMATIC DIAGRAM (8/10) - 27 -

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– 27 –
CD-C622/C2900
Figure 27 SCHEMATIC DIAGRAM (8/10)
7
8
9
10
11
12
2900
ONLY
C956
100/50
C954
100/50
Q908
KRC107
M
C937
0.1
(ML)
C936
0.1
(ML)
D802
1SS133
JK970
HEADPHONES
CNP802
R946
330(1/2W)
R937
4.7
R934
4.7
R961
15K
D960
1SS133
C960
10/50
R963
1K
Q906
2SC3331
RL901
R936
56K
C938
47/50
WTM801
D810
1SS133
D813
1SS133
D812
1SS133
D811
1SS133
C809
0.047(ML)
56K
C924
15P
R924
1K
C923
47P
C813
220/50
C806
0.047
C805
0.047
D803
1N4004S
D806
1N4004S
D805
1N4004S
D804
1N4004S
ZD802
MTZJ30B
C804
47/50
Q801
KTA1274
Y
R806
2.2K
D807
1N4004S
D808
1N4004S
D809
1N4004S
C812
220/50
C811
220/50
RL801
C961
47/50
CNP804
R960
22(1/2W)
14
15
D907
1SS133
R938
56K
R939
56K
R949
330(1/2W)
R941
4.7K
R942
4.7K
Q960
2SC3331
1
2
3
4
5
6
7
8
R803
47K
C802
100/35
ZD801
MTZJ6.2A
C803
47/50
R802
47
1
2
CNP801
T802
C801
0.0047
M
M901
FAN
MOTOR
FW801
1
2
T801
POWER
TRANSFORMER
C810
470/25
Q803
AN78L05
1
D816
1SS133
2
3
C814
10/16
R808
220
C815
1000/6.3
D815
1SS133
D818
1SS133
Q802
KRC107
M
CNP806
R962
68K
R801
12K
SO801
AC INPUT
F802
4.0A/125V
F803
4.0A/125V
1
2
3
+B2
16
OHMS/CH
6
OHMS/CH
+B
+B
+B
+B
+B
+B
+B
CNS804
1
5
SP_REAR_L-CH
SP_REAR_R-CH
SP_REAR_L-CH_GND
SP_REAR_R-CH_GND
SP_L-CH
SP_R-CH
SP_L-CH_GND
SP_R-CH_GND
CNS801
T.F
F805
2.0A/250V
–B
+B
POWER
TRANSFORMER
3
2
1
D_GND
UN_SW_5V
AC
_RLY_CON
+5V
+B
CNS806
P29
12 - E
TO
DISPLAY
PWB
+B
AC
POWER
SUPPLY
CORD
AC
120V/60Hz
POWER
PWB-A2
HEADPHONES
PWB-A5
8
7
6
5
4
3
2
1
8
7
6
5
4
2
1
3
4
3
2
1
5
4
3
2
1
2
1
1
2
D801
TS6B04GM
CNS802
2900 ONLY
C808
0.047
C807
0.047
2900 ONLY
SO901
SPEAKER
TERMINAL
622 ONLY
VOLTAGE
REGULATOR