Troubleshooting - Panasonic PT-AE8000U Service Manual

6. Troubleshooting

6. 1. Summary of shut down system
When the abnormality of the lamp and the abnormality of the fan occurred, possess a shut down function to make a
standby state for safety promptly.
Monitor LED indication
No flashing or blinking
All indicator Illuminating
TEMP indicator
Flashing red
LAMP indicator
Flashing red
LAMP LED Lights
Shut down Detection
Power fuse
=> 8A 250V
Thermal fuse
=> More than 105 degrees C
IIC bus
=>FPGA initialized error
=>Communication error
No FAN sense signal
Each FAN sense signal:
=> Rotation speed is slower
than 50% of target for
more than 10 seconds.
IRIS sense signal
=> Unresponsiveness is more
than 1 minute
Interlock SW
=> Abnormal :OFF
Intake air temperature sensor:
=> Under -36 degrees C
Exhaust air temperature
sensor:
=> Under -36 degrees C
Intake air temperature sensor:
=> More than 43 degrees C
Exhaust air temperature
sensor:
=> More than 79 degrees C
Filter air temperature
sensor:
=> More than threshold
** degrees C
Lamp status
=> Lamp is off during the status
other than normal one
Lamp hours
=> Over 4000 hours
(Shouts down after 10
minutes.)
Value "**" is changed by "Lamp mode", or "Fan mode" and "Setting attitude"
Presumed Factor
Blown out of the fuse
(with some reason)
Blown out of the fuse
(with some reason)
Communication line is disconnection
in A-P.C.Board.
Connector is disconnected
Fan abnormal
Fan speed abnormal
Iris unit abnormal
Iris drive circuit abnormal
Lamp unit cover is not installed.
Connection problem with Intake air
temperature sensor.
Faulty temperature sensor.
Connection problem with Exhausting air
temperature sensor.
Faulty temperature sensor.
Intake air temperature error
High temperature of environment
Intake air window is closed
Exhausting air temperature error:
Closed ventilator
High altitude mode is not on.
Filter clogging
Closed Intake
High altitude mode is not on
Failed lamp ON,
lamp abnormal condition
Ballast block faulty,
Hot restart
Lamp usage hour is over the guideline.
INF - 15
OSD Warning Indication
－
－
－
－
－
－
－
－
－
More than 41 degrees C
=>"TEMPERATURE WARNING"
lower than 39 degrees C
=> Warring cancel
More than 77 degrees C
=>"TEMPERATURE WARNING"
lower than 75 degrees C
=> Warring cancel
"Air filter cleaning"
－
Over 3800 hours
=> "Replace lamp"