Sanyo PLV-55WHD1 Service Manual page 6

Circuit Protections
● Lamp cover switch
The lamp cover switch (SW1861) cuts off the drive signal to the lamp circuit when the lamp cover is removed or no
close completely.
After opening the lamp cover for replacing the lamp unit, place the lamp cover correctly otherwise the LCD
Projection TV can not be turned on.
● Warning indicator
The LCD Projection TV is shut down and the WARNING indicator is flashing red
When the temperature inside the LCD Projection TV exceeds the normal temperature, it is automatically shut down
to protect the LCD Projection TV. The POWER indicator flashes red and the LCD Projection TV is being cooled
down. When the temperature inside the LCD Projection TV returns to normal, the POWER indicator is turned off
and the LCD Projection TV can be turned on. When the LCD Projection TV is turned on again, the WARNING indi-
cator stops flashing.
Check the items listed below;
> Installation and air circulation
> Temperature abnormality with temperature sensors
The LCD Projection TV is shut down and the WARNING indicator lights red
When the LCD Projection TV detects an abnormal condition, it is automatically shut down to protect the LCD
Projection TV and the WARNING indicator lights red. In this case, unplug the AC power cord and plug it, and then
turn the LCD Projection TV on again to verify operation. If the LCD Projection TV is turned off again or fails to be
turned on, the internal check and repair will be required.
Check the items listed below;
> Power failure protection circuit
> Temperature abnormality with temperature sensors and thermal switch
> Lamp cover switch
LAMP COVER SWITCH
(SW1861)
LAMP COVER
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