Fan Control Circuit - Sanyo PLV-Z3000 Service Manual

Chassis Block Diagrams
● Fan control circuit
MAIN BOARD
S16VF
IC7801
IC7802
IC7861
TH901
K8F
TH902
K8E
● Fan and sensor location
FAN(FN903)
FAN(FN901)
Q7821
Q7831
Q7841
FAN_SW
Q7851
FAN_SW
65
FAN_CTL0
176
FAN_CTL1
66
FAN_CTL2
177
FAN_CTL3
IC8841
TEMP.
SENSOR
68
THERM2
439
THERM_DET
281
THERM1
THERMISTOR(TH901)
FRONT
FAN(FN902)
FN901 FN902 FN903 FN904 FN905
1 2 1 2
FAN1
FAN_CTL0
FAN1
FAN2
FAN_CTL1
FAN2
FAN3
FAN_CTL2
FAN3
FAN4
FAN_CTL3
FAN4
FAN5
437
FAN_SW
IC4801
IC301
SUB CPU
SYSTEM
CONTROL
IC4401
COLOR
MANAGER
- 78 -
1 2 1 2 1 2
FAN_MTR1-5
Power-On : H
291
FAN_MTR1
343
FAN_MTR2
292
FAN_MTR3
344
FAN_MTR4
293
FAN_MTR5
TEMP. SENSOR IC(IC8841)_SIDE-B
THERMISTOR(TH902)
MAIN BOARD
FAN(FN904)
FAN(FN905)