Temperature Sensors (Th901, Th90, Ic8841) - Sanyo PLC-XT25 Service Manual

Circuit Protections
Temperature sensors (TH901, TH902, IC8841)
The projector provides a temperature sensor IC on the Main board and  thermistors. The temperature sensor IC
moniors arround the lamp house, the thermisstors are placed on the blue panel holder and on the intake duct.
- Internal temperature sensor A (IC8841) (arround the lamp house)
- Panel sensor B (TH90) (arround the blue panel)
- Room temperature sensor C (TH901) (arround the intake duct)
IC8841
(Behind PWB)
the projector is shut down and the WArNING teMP. indi-
cator is blinking red.
When the temperature inside the projector reaches a certain
level, the projector will be automatically shut down to protect
the inside of the projector. The POWER indicator is blinking
while the projector is being cooled down. When the projector
has cooled down enough (to its normal operating tempera-
ture), it can be turned on again by pressing the ON/STAND-
BY button.
✔
Note:
• T he WARNING TEMP. indicator continues to blink even after
the temperature inside the projector returns to normal. When
the projector is turned on again, the WARNING TEMP. indica-
tor stops blinking.
top control
WARNING TEMP.
blinking red
-7-
TH90
TH901