Sanyo PLC-XC50 - Fuse; Warning Temperature and Power Failure Protection

-6-
Circuit Protections
The projector will be automatically turned off when the internal temperature of the projector is abnormally high, or the
cooling fans stop spinning, or the power supplies in the projector are failed.
- If the WARNING TEMP. indicator is flashing, it may detect the abnormal temperature inside the projector. Check
the following possible causes and wait until the WARNING TEMP. indicator stops flashing, and then try to turn on
the projector.
- If the WARNING TEMP. indicator lights red, it may defect the cooling fans or power supply circuits. Check fans
operation and power supply lines referring to the chapter “Power supply & protection circuit” in the Chassis Block
Diagram section.
Possible causes
- This projector has an electrically operated filter which helps you to replace the filter easily. The projector monitors
the condition of the filter at all time and replaces a filter with a new one automatically hen it detects the clogging. if
the projector reaches a time set in the timer, please replace the filter by following instructions in the “Replace the
Filter Cartridge” below.
- Ventilation slots of the projector are blocked. In such an event, reposition the projector so that ventilation slots are
not obstructed.
-Checkifprojectorisusedathighertemperatureplace(Normaloperatingtemperatureis5to35˚Cor41to95˚F)
The projector is shut down and the WARNING
TEMP. indicator emits a red light .
When the projector detects an abnormal condition, it is
automatically shut down to protect the inside and the
WARNING TEMP. indicator becomes red. In this case,
disconnect the AC power cord and reconnect it, and then
turn the projector on once again for check. If the projector
cannot be turned on and the WARNING TEMP. indicator
still emits a red light it may detect the failure of cooling fans
or power supply circuits.
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.
Top Control
WARNING
lights red
Warning temperature and power failure protection
Fuse
A fuse(F601) is located inside of the projector. When the POWER
indicator is not lightning, the fuse may be opened. Check the fuse
as following steps.
The fuse should be used with the following type;
Fuse Part No.: 323 021 7804
TYPE 6.3AH 250V FUSE
LITTLE FUSE INC. TYPE 21506.3
How to replace the fuse
1. The fuse is placed on the filter board. Remove the cabinet top
and main board and AC Assembly following to the "Mechanical
Disassemblies".
2. Take the fuse off from fuse holder on the Filter board and replace
the new one with the specified type.
To install the fuse, take reversed steps above.
Fuse
AC Assembly