Sharp WQ-780W - Page 12

WQ-740W/WQ-780W
– 12 –
• NOTES ON SCHEMATIC DIAGRAM can be found on page 6.
A
B
C
D
E
F
G
H
1
2
34 5
6
Figure 12 SCHEMATIC DIAGRAM (3/6)
WQ-740W
R191
100
R180
2.2
R181
680
15V
GND
LIVE
STEREO
R135
3.9K
VOLTAGE
REGULATOR
R182
33
R650
330
D135
LIVE
C182
100/16
C181
0.1
C180
100/16
D131
1
6
FUSIBLE
D130:IFR-523HD
+B
HALL
1
7
FM SIGNAL
X-BASS
VR101-A
VR101-B
VR102-A
VR102-B
VR103-A
VR103-B
VR104-A
VR104-B
VR105-A
VR105-B
330Hz 1kHz 3.3kHz 10kHz
GRAPHIC EQUALIZER
C103
470/16
C102
0.1
C106
0.022
R644
68K
VR101-A
50K(B)
R106
12K
R110
18K
C108
0.01(ML)
R112
8.2K
VR102-A
100K(B)
R114
8.2K
R116
5.6K
R120
4.7K
C110
0.0068(ML)
R118
4.7K
VR103-A 100K
R122
2.2K
C112
0.0022(ML)
C114
100P
VR104-A
100K(B)
R126
3.3K
R128
1.5K
R132
820
R134
1K
VR105-A
100K(B)
R130
820
C124
1/50
C118
0.022(ML)
C116
0.022(ML)
C120
0.012(ML)
C122
0.0068(ML)
R103
560
R101
1K
R104
560
R105
12K
C105
0.022
VR101-B
50K(B)
R645
68K
R109
18K
R113
8.2K
C107
0.01(ML)
R111
8.2K
VR102-B 100K
R115
5.6K
C109
0.0068(ML)
R117
4.7K
VR103-B
100K(B)
R119
4.7K
R121
2.2K
C111
0.0022(ML)
VR104-B
100K(B)
R123
3.3K
R125
3.3K
R127
1.5K
R129
820
C113
100P
VR105-B
100K(B)
R131 820
R133
1K
(B)
Q101
9014 C
R137
680K
C125
1/50
C177
500P
R107
12K
C115
0.022(ML)
C123
1/50
C121
0.0068(ML)
C119
0.012(ML)
C117
0.022(ML)
R138
3.9K
C176
500P
R136
680K
Q102 9014 C
C126
1/50
R108
12K
(B)
R102
1K
R628
330
D128
LIVE
R642
330
D132
LIVE
R629
330
D129
HALL
R643
330
D133
HALL
+B
+B
R631
56K
R632
56K
R183
5.6K
R184
47K
C185
10/16
C184
10/16
C183
0.1
+B
+B
+B
+B
R169
100
C149
1/50
R168
470K
C148
10/16
C147
10/16
R167
82K
D115
R615
47
R614
47
D114 D113 D112 D111
R611
47
R612
47
R613
47
1234
5
6
7
8
9
D111~D113:IFR-553PD D114,D115:IFR-523HD
+B
+B
1
2
3
4
6
5
CN205
1
2
3
4
6
5
7
CN207
P9 12-C
CNS101
TO MAIN PWB
TO MAIN PWB
CN4
P9 10-G
GRAPHIC
EQUALIZER AMP.
IC103 AN6884
SOUND LEVEL METER
GRAPHIC EQUALIZER PWB-B2
SOUND LEVEL METER
LED CONTROL
R636
1K
SOUND LEVEL METER
LED CONTROL
R638
56K
R640
33K
C191
22/16
R637
56K
POWER
R626
330
D126
POWER
D130
STEREO
R651
330
D136
HALL
D126,D128,D129
D132,D133
D135,D136
IFR-553PD
Q103
2SD2061
Q107
9012 G
Q106
9014 C
GRAPHIC
EQUALIZER
AMP.
D134
1N4148
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