Power Failure And Fan Lock Detection - Sanyo PLC-WM5500 Service Manual

Circuit Protections

Power failure and fan lock detection

The projector provides the detection circuits of the power failure and the fan lock. When the detection circuit detects
an error at the power supply line or at the fan operation circuit, the projector will turn into the standby mode to protect
the other circuits defective.
The projector is shut down and the LAMP indicator is
lighting and other indicators are blinking.
When the projector detects an abnormal condition, it will be
automatically shut down to protect the inside of the projector
and the LAMP indicator lights on and other indicators blink
In this case, unplug the AC power cord and plug it, and then
turn on the projector once again to verify operation. If the
projector cannot be turned on and these indicators still light-
ing and blinking, it may operate the power failure protection
function.
Check that the filter cartridge is installed correctly.
CAUTION
DO NOT LEAVE THE PROJECTOR WITH THE
AC POWER CORD CONNECTED UNDER AN AB-
NORMAL CONDITION. IT MAY RESULT IN FIRE
OR ELECTRIC SHOCK.
LAMP indicator lights on
and other indicators
blink.
-8-
LED indicators