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WQ-740W/WQ-780W
WQ-740W
A
C103
470/16
B
R191
CN205
100
1
1
2
3
4
5
C
6
6
D
E
CN207
1
15V
+B
1
GND
F
2
HALL
3
LIVE
4
5
POWER
6
STEREO
7
7
G
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 6.
1
All manuals and user guides at all-guides.com
FM SIGNAL
X-BASS
VR101-A
VR101-B
R106
R112
12K
8.2K
C102
0.1
R101
R103
1K
560
R114
R116
8.2K
5.6K
R108
12K
C116
0.022(ML)
R104
560
R102
1K
R105
R111
12K
8.2K
C105
0.022
R113
R115
8.2K
5.6K
R107
12K C115
0.022(ML)
R182
33
R180
Q103
2.2
2SD2061
FUSIBLE
VOLTAGE
REGULATOR
R181
680
R631
56K
R632
56K
+B
R626
R628
R642
R629
R643
R650
330
330
330
330
330
330
D128
D132
D129
D133
D135
LIVE
LIVE
LIVE
HALL
HALL
+B
D126,D128,D129
D132,D133
IFR-553PD
D135,D136
D130:IFR-523HD
2
3
Figure 12 SCHEMATIC DIAGRAM (3/6)
GRAPHIC EQUALIZER
VR102-A
VR103-A
VR104-A
VR105-A
VR102-B
VR103-B
VR104-B
VR105-B
330Hz
1kHz
3.3kHz
10kHz
R130
R118
820
4.7K
R120
R122
R126
R128
R132
4.7K
2.2K
3.3K
1.5K
820
C118
C120
C122
0.022(ML)
0.012(ML)
0.0068(ML)
R129
R123
R117
3.3K
820
4.7K
R119
R121
R125
R127
4.7K
2.2K
3.3K
1.5K
C117
C119
C121
0.012(ML)
0.022(ML)
0.0068(ML)
+B
R183
5.6K
R184
C185
47K
10/16
R169
100
+B
C149
1/50
R168
470K C148
10/16
R651
330
+B
R637
56K
D136
HALL
C191
+B
22/16
GRAPHIC EQUALIZER PWB-B2
4
– 12 –
R138
3.9K
C176
500P
R136
680K
C126
1/50
R134
1K
C124
1/50
Q101
R135
9014 C
GRAPHIC
3.9K
EQUALIZER
AMP.
R137
680K
C177
500P
C125
1/50
C123
1/50
IC103 AN6884
SOUND LEVEL METER
9
8
7
6
5
4
3
2
C147
R167
82K
10/16
Q107
9012 G
R638
SOUND LEVEL METER
56K
LED CONTROL
R636
1K
Q106
9014 C
R640
33K
SOUND LEVEL METER
LED CONTROL
5
6
1
+B
+B
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