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4. Temp. and airflow sensors
The projector provides 2 temperature sensor ICs and an airflow sensor. The temperature sensor ICs monitor internal
temperature and external temperature (around the intake duct ) respectively. The airflow sensor monitors intake air-
flow through the airfilter to detect the airfilter clogged.
- Internal temperature sensor A (IC8801)
- Internal temperature sensor B (IC8841) (around the intake duct)
- Airflow sensor (SS901)
- Panel (Polarized glass) thermistor (SW913)
- Shutter thermostat switch (SW914)
5. 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 the fan lock detection line, the projector will turn into the standby mode to protect
the other circuits defective.
- If the all of LEDs are blinking, the projector may defect the failure on the fan or the power supply lines. Check fan
operation and power supply lines referring to the chapter “Power supply and Failure Detection” in the Chassis Block
Diagram section.
Safety Protections
LED indication on the Error
SHUTTER LED blinking Shutter operation error
WARNING TEMP LED
blinking
Temp. Error detected by IC8801,
IC8841, SW913, SW914
LED indication on the Error
All of LEDs blinking
Power failure or Fan lock de-
tected
IC8841
SS901
SW913
SW914
IC8801
Summary of Contents for PLC-EF60A
Page 102: ... 102 IC Block Diagrams TC4052BFT Selector IC9005 TC90A69F PAL Y C Separator IC2101 ...
Page 103: ... 103 IC Block Diagrams TE7780 I O Expander IC4801 IC4802 MAS1390 G Sensor IC5711 ...
Page 104: ... 104 IC Block Diagrams ...
Page 153: ...KJ6 EF60A00 153 Mechanical Parts List L15 R G Optical Filter WV Optical Filter WV S05 S05 ...
Page 154: ...KJ6 EF60A00 154 Mechanical Parts List 1 2 0 5 L03 Integrator In Integrator In ...
Page 156: ...KJ6 EF60A00 156 Mechanical Parts List L09 Mirror R Mirror R S05 S05 ...
Page 157: ...KJ6 EF60A00 157 Mechanical Parts List 157 Relay lens Out L08 Relay Lens Out ...
Page 160: ... KJ6A Feb 2006 BB 400 Printed in Japan SANYO Electric Co Ltd ...
Page 184: ...Diagrams Drawings KJ6 EF60A00 ...