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A
B
TO MAIN PWB
CNP935
P40 1-H
C
1
2
3
TO MAIN PWB
4
CNP915
5
6
P40 1-G
7
8
TO POWER AMP.
1
2
CNP210
3
P55 12-D
4
CNS600B
D
E
TO MAIN PWB
1
1
CNP905
2
2
3
3
P40 1-G
F
G
H
1
MIC PWB-C7
EX_MD-R
1
1
2
2
EX_MD-L
3
3
4
4
AUX_OUT-R
5
5
6
6
AUX_OUT-L
7
7
8
8
AUX_IN-R
9
9
10
10
AUX_IN-L
11
11
+10V
+B
1
–10V
+B
2
MIC_L-CH
3
A_GND
4
5
MIC_SW
6
RELAY1
7
A_GND
8
HP_OUT-R
9
A_GND
10
HP_OUT-L
11
RELAY
12
IC602
IC603
PIN
PIN
NO. VOLTAGE
NO. VOLTAGE
1
1
–
–
2
2
–
–
3
–
3
–
4
–
4
–
5
0V
5
0V
6
6
4.8V
4.7V
7
7
4.8V
4.7V
8
8
4.8V
4.7V
A/D_SW
NAME_IN
D_GND
D_GND
D_GND
: Eliminated/Change PARTS
2
Figure 5 SCHEMATIC DIAGRAM (1/7)
IC601
PIN
NO. VOLTAGE
1
0V
2
0V
3
0V
R609
4
–11.1V
1K
5
0V
6
0V
7
0V
R603
8
10.8V
68K
R601
C601
1K
10/50
IC601
NJM4558D
MIC AMP.
C611
10/50
R623
100(1/2W)
R624
100(1/2W)
R633
22K
C631
100P
C632
L631
R636
100P
2.2µH
4.7K
R634
22K
C633
0.022
3
4
– 5 –
MIC VOLUME
VR601
20K(B)
R611
C621
NC
1K
10/50
D615
R620
1SS133
1.5K
C615
R615
Q601
10/50
1.5K
KTC3199 GR
C603
220P
C605
R607
220P
330
2
–
1
+
3
5
7
R617
6
1K
8
4
C613
0.022
R605
22
C609
C614
3.3/50
10/50
C626
100P
L603
330
L602
330
L601
2.2µH
J644
1K
J675
1K
R631
3.3K
1
1
6
2
2
5
3
3
4
R632
4
4
3
3.3K
5
5
2
6
6
1
R151
C646
1K
0.022
JACK PWB-E
D-GND
C627
0.022
5
MD-X7H
NC
MICROPHONE
JK601
C625
100P
HEADPHONES
JK901
HP_GND
INPUT LEVEL
VR602
20K(B)
A_GND
R_IN
L_IN
D_GND
JK151
MD IN/AUX1
6
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Troubleshooting
