— 70 —
- MAIN BOARD Section -
IC201,402 LB1641
IC802 MC14052BCP
1
2
3
4
5
6
7
8
9
10
GND
MOTOR
DRIVE
NOISE
FILTER
CLAMP
FWD.IN
REV.IN
VCC 1
VCC 2
NOISE
FILTER
MOTOR
DRIVE
MOTOR
DRIVE
MOTOR
DRIVE
T.S.D
O.C.P
FWD/REV/STOP
CONTROL LOGIC
1
2
3
4
5
6
7
8
OVER LOAD DET
F/F
OFFSET DET
LATCH/
AUTORESET
V
CC
ON
MUTE
AC OFF
DET
V
CC
IC1202 uPC1237HA
11
15
14
12
9
1
5
2
4
6
7
8
16
13
10
VDD
SELECT A
VSS
VEE
INH 7
SELECT B
0
1
2
3
3
0
1
2
3
