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SCHEMATIC DIAGRAM - 8
KEY CIRCUIT
1
2
3
TO
VOLUME
4
CIRCUIT
(CN502) ON
5
SCHEMATIC
6
DIAGRAM-9
7
8
CP502
12
KEY2
11
KEY1
10
LED CK
9
LED DT
8
TO
REM
PANEL
7
CIRCUIT
AF_MUTE
6
(CN905) ON
BK+5V
SCHEMATIC
5
+5V
DIAGRAM-4
4
D_GND
3
HP_GND
2
HP_R
1
HP_L
W905
TONE CIRCUIT
10
R_TIN
9
AGND
8
7
TO
DGND
PANEL
6
CIRCUIT
5
(CN906) ON
R_TOUT
SCHEMATIC
4
-14V
DIAGRAM-4
3
+14V
2
SEL2
1
SEL1
W906
COM
B
A
3
1
2
C921
100P
D933
SLR325MCT31
5
R948
TO
4
270
KEY CIRCUIT
3
LED_DIGIT
(W907) ON
SCHEMATIC
2
LED_TAPE
DIAGRAM-8
1
KEY_DIGIT
W907
R932
R933
R934
R935
R931
1.5K
1.8K
1K
1.2K
2.2K
R941
R942
R943
R944
1K
1.5K
1.8K
1.2K
Z901
REMOTE SENSOR
1
R957
4.7K
2
3
Q1681-Q1682
2SD1915FTA
MUTING
R1681
R1683
R1685
22
22
22
C1683
R1695
R1697
R1693
R1691
3300P
22
22
22
22
<0.7V>
R1679
1K
R1699
3.3K
C1685
0.01
C1684
<0.7V>
3300P
R1680
1K
R1696
R1694
R1698
R1692
22
22
22
22
R1686
R1688
R1682
R1684
R1690
22
22
22
22
R516 470K
C516
C520
C518
50V4.7
33P
220P
2
1
3
4
GND
-
+
IC505
+
-
VCC
8
7
6
5
IC505
NJM4580DD
C519
R515
50V4.7
470K
TONE AMP
VR901
C521
C522
BALANCE
50V4.7
50V4.7
CONTROL
R522
R521
22K
C920
22K
100P
C523
C524
R949
0.012
0.012
270
D934
SLR325YCT31
C525
C526
VR503
0.068
0.068
BASS
R523
R524
3.9K
3.9K
R946
R947
3.3K
4.7K
:-B SIGNAL LINE
:+B SIGNAL LINE
R936
R938
R937
3.3K
4.7K
6.8K
C924
C925
16
15
16V10
0.01
R945
2.2K
IC902
BU2090A
EXPANDER
1
C926
100P
R1687
R1689
22
22
<0V>
Q1681
<0V>
CP503
<0V>
4
4
Q1682
3
3
<0V>
2
2
1
1
CN503
22
C512
50V4.7
VR502
BALANCE
TO
INPUT
SELECTOR
CIRCUIT
(CP351) ON
SCHEMATIC
DIAGRAM-1
C511
50V4.7
VCR3 IN
C527
C528
5600P
5600P
R526
R525
2.2K
2.2K
TO
VR504
VOLUME
TREBLE
3
CIRCUIT
R527
R528
2
(CP506) ON
1.2K
1.2K
SCHEMATIC
1
C530
DIAGRAM-9
C529
0.027
0.027
W506
:MAIN SIGNAL LINE
ORANGE
D944
SLR325YCT31
R928
270
14
13
12 11 10
9
IC902
2
3
4
5
6
7
8
D936
SLR325YCT31
D935,D937-D938
SLR325VCT31
LED_DRIVE
LED_DIGIT
LED_TAPE
KEY_TAPE
HP601
HEADPHONES
HEADPHONES
CIRCUIT
FRONT VCR3
INPUT CIRCUIT
1
VCR2_L
2
3
VCR2_R
4
S301_L
5
6
S301_R
W351
R421
1K
L CH
C441
R423
C443
100P
220K
0.01
R422 1K
R CH
R424
C442
220K
100P
VIDEO
R351
C358
4.7K
JK352
5
TO
4
TONE
CIRCUIT
3
(W907) ON
2
SCHEMATIC
DIAGRAM-8
1
W907
S301
RSP2D018-A
SLIDE SWITCH
TO
1
PANEL
CIRCUIT
2
(CN352) ON
SCHEMATIC
3
DIAGRAM-3
W352
S301
TO
INPUT
1
SELECTOR
CIRCUIT
2
(CP353) ON
SCHEMATIC
3
DIAGRAM-1
W353
1
1
E351
2
2
0.01
3
3
W355
EARTH
TERMINAL
CIRCUIT
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