Main C.b Section; Front 1 C.b Section; Front 2 C.b Section - Aiwa HV-FX780 Service Manual

SCHEMATIC DIAGRAM-5 (FRONT-1 SECTION)
FRONT-1 C.B
PKM02
1
2
3
4
5
6
7
R5A1
GND 8
1.8K
K.RTN 1 9
10
SW5A1
REC/ITR REW/
To
MAIN C.B
( SYSCON/SERVO )
SECTION
PMK02
SCHEMATIC DIAGRAM-6 (FRONT-2 SECTION)
FRONT-2 C.B
PMK01
GND 1
OTPB "H" 2
5.3VA 3
K. RTN 0 4
GND 5
To
R5A9
MAIN C.B
120
( SYSCON/SERVO )
SECTION
PMK01
LD5A1
SG5311
Q5A1
R
KRC103M
R5A3
R5A2 R5A4 R5A5
2.2K
1.5K 2.7K
3.9K
SW5A2 SW5A3 SW5A6
SW5A4 SW5A5
PLAY /F FWD
STOP PAUSE/
STILL
R5A6 R5A7 R5A8
1.8K 1.5K 2.2K
SW5A7 SW5A8 SW5A9 SW5A0
CH UP CH DOWN OPTB
ONE-TOUCH
PLAYBACK
29
WIRING-2 (FRONT-1 C.B SECTION)
1 2 3
A
FRONT-1 C.B
B
C
D
E
WIRING-3 (FRONT-2 C.B SECTION)
F
FRONT-2 C.B
G
H
I
J
4 5 6
SW5A1
REC
SW5A6
P/STILL
SW5A2
SW5A4
REW
FF
SW5A3
PLAY
SW5A5
STOP
PKM02
10 5 1
To
MAIN C.B
PMK02
To
MAIN C.B
PKM01
PKM01
5 1
Q5A1
E C B
C5A1
LD5A1
SW5A0 SW5A9
OPTB
POWER
SW5A7 SW5A8
CH UP CH DOWN
30