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Circuit Protects
The projector will be automatically turned off when the internal temperature of the projector is abnormally high, or the cool-
ing fans stop spinning, or the power supplies in the projector are failed.
- If the WARNING indicator is flashing, it may detect the abnormal temperature inside the projector. Check the following pos-
sible causes and wait until the WARNING indicator stops flashing, and then try to turn on the projector.
- If the WARNING 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
- Air filters are clogged with dust particles. Remove dust from the air filters by following instructions in the “Air filter care and
cleaning” 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)
Warning temperature and power failure protection
the projector is shut down and the WARNING indi-
cator lights red.
When the projector detects an abnormal condition, it is automat-
ically shut down to protect the inside of the projector and the
WARNING indicator lights red. In this case, unplug the AC power
cord and reconnect it, and then turn the projector on once again
to verify operation. If the projector cannot be turned on and the
WARNING indicator still lights red, it may defect the cooling fans
or power supply circuits.
CAUtIoN
DO NOT LEAVE THE PROJECTOR WITH THE AC POWER
CORD CONNECTED UNDER AN ABNORMAL CONDI-
TION. IT MAY RESULT IN FIRE OR ELECTRIC SHOCK.
Indicators
WARNING
emit a red light
Содержание PLC-XE50
Страница 79: ... 79 IC Block Diagrams BA7078 Sync Separator IC5301 AN5870 Signal Switch IC5201 ...
Страница 80: ... FA5502 P F Control IC601 HIN202EIB RS 232C Driver IC3801 80 IC Block disgrams ...
Страница 81: ... L3E07110 LCD Driver Gamma Correction IC401 L3E06150 D A S H LCD Driver IC501 IC531 IC561 81 IC Block disgrams ...
Страница 82: ... L3E01060 Level Shift IC2501 IC2531 IC2561 M62334 DAC IC3501 82 IC Block disgrams ...
Страница 83: ... NJW1141 Audio Control IC5001 PW190 Scaler IC301 83 IC Block disgrams ...
Страница 84: ... STR Z2156 Power OSC IC651 84 IC Block disgrams ...
Страница 105: ...51 51 51 51 3 110 101 68 67 66 Red 114 Green 115 Blue 116 Polarized Grass 105 Mechanical Parts List ...
Страница 106: ...Integrator Lens In 109 102 106 Mechanical Parts List ...
Страница 107: ...103 113 104 111 117 118 108 112 112 107 105 106 107 Mechanical Parts List ...
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Страница 112: ...SM5110899 00 PLC XE50 Nov 2007 DC 350 Printed in Japan ...