Switch Unit - Kenwood KDC-BT7539U Service Manual

A
PC BOARD
(COMPONENT SIDE VIEW)

SWITCH UNIT

X16-638x-xx (J76-0503-12)
S2
C12
S4
D12
D11
D4
VCC OUT
IC3
GND
D3
C3
S3
S6
Refer to the schematic diagram for the values of resistors and capacitors.
B C
PC BOARD
(FOIL SIDE VIEW)
SWITCH UNIT
X16-638x-xx (J76-0503-12)
X16-638x-xx
Ref. No. Address
IC3 6A
D
KDC-BT7539U/BT8041U
/BT8141UY/BT838U
Q7
Q6
CP3
R12
TP48
R6 C46
C45
4
5
IC4
1
8
C91
CP21
IC2
R62
4 3
CP20 R76
1 2
TP71
R75
26 25
X1
CP12
R78
C77
R79
R72
50 1
IC1
51
100
C81 C86
C82
CP17
C85
CP13
C83
R80
D20
75 76
R71
C84
CP15
D40
D19 CP16
R2 C43
R49
ILL+B
R41
D93
TP3
R42
D94
R43
TP5 D95
R47
TP6
R45
TP7
TP29
R44
TP9
TP28
R48
TP27
TP11
R46
C47 TP26
TP12
TP13
D92
TP23
TP14 R51
F-DC
TP15 R50
TP16
B E
E B
D41
R65
R66
R81
R69
R67
R1
E B
R3
R10
E
C13
X16-638x-xx
Ref. No. Address
IC1 4C
Q1 6D
Q3 6C
Q4 3C
Q5 6C
Q6 2D
Q11 5D
23
1
2
3
4
5
6
7