Motor Driving Circuit - Sanyo PLV-Z4 Service Manual

Chassis Block Diagrams
● Motor driving circuit
IC301
SCAN
CONVERTER,
SYSTEM
CONTROL
<PW386>
FIN RIN
H
L
H
L
MAIN BOARD
269
IRIS_PWM
58
IRIS_SENS
5
157
IRIS_OPEN
RIN
4
285
IRIS_CLOSE
FIN
5
149
DOOR_OPEN
RIN
4
151
DOOR_CLOSE
FIN
204
DOOR_CLOSE_SW
205
DOOR_OPEN_SW
MOTOR FUNCTION TABLE of BA6287
OUT2 OUT1 OUTPUT MODE
L L H FORWARD MODE
H H L REVERSE MODE
H L L BRAKE MODE
L OPEN OPEN STAND-BY MODE
CTL(-)
DRV(+)
DRV(-)
CTL(+)
6V
5V
IC8701
GND
MOTOR DRIVER <BA6287>
OUT1
DRIVER
CONTROL
TSD
LOGIC
OUT2
DRIVER
TSD : Termal Shut Down
IC6551
MOTOR DRIVER <BA6287>
OUT1
DRIVER
CONTROL
TSD
LOGIC
OUT2
DRIVER
FUNCTION
OPEN
CLOSE
BRAKE
STAND-BY
-74-
LAMP
IRIS
K8G
MOTOR
M
K8H
1
M
7
IRIS
MOTOR
PROJECTION LENS
K8N
1
M
7
DOOR
MOTOR
DOOR SW_B BOARD
5V = DOOR
SW8811
CLOSE
K8L
K8811
Open
5V = DOOR
SW8801
OPEN
K8M
K8801
Open
DOOR SW_A BOARD