Troubleshooting; Shutdown System - Panasonic PT-EZ770Z Service Manual

SECTION 1 SERVICE INFORMATION

6. Troubleshooting

6. 1. Shutdown system

This projector provides the shutdown function to set into the standby mode immediately for product safety when the projector
has the fan operation error or lamp lightning error.
LED indication status
Power supply block
Fuse : Rated 10A
Not lighting or flashing
Thermal fuse
Lamp cover switch
STANDBY/ON LED
blinks in red 1 time
FPGA initializing error or communication
STANDBY/ON LED error
blinks in red 3 times
Main software activation error
Intake air temperature sensor
TEMP LED lights
Exhaust air temperature sensor
Each FAN sense signal
TEMP LED blinks 3 times
(TEMP LED lights) Each FAN sense signal
Intake air temperature sensor
TEMP LED blinks 2 times
(TEMP LED lights)
Exhaust air temperature sensor
Lamp runtime
LAMP LED lights
(Shutdown in 10 seconds)
Lamp status
LAMP LED blinks 3 times
Ballast block
Fuse : Rated 5A
LAMP LED blinks 1 time Lamp memory communication error
*1 it depends on the lamp mode , fan
Shutdown detection
a Over 113ºC
a Shutdown immediately if switch is
OFF
a Lower than -20ºC
a Lower than -20ºC
a No signal
a Fan rotation is slower than 70% of
target for more than 5 seconds
a Higher than 48ºC
(Higher than 43ºC at highland mode)
a Higher than 87ºC *1
a More than 3000 hours
a Lamp is failure while the status is
other than normal operation
mode or installed position.
Probable cause
Blown out of fuse
(with another reason)
Blown out of thermal fuse (with another reason)
Check usage environment
Lamp cover is not installed securely
Failure on signal processing part
Main microprocessor writing error
Bad connection of intake air temperature sen-
sor/ Sensor error
Bad connection of exhaust air temperature sen-
sor/ Sensor error
Connector Disconnection
Fan rotation error
Fan rotation error
Intake air temperature error
Filter clogging
High temperature of environment
Ventilation holes are blocked
Exhaust air temperature error
Ventilation holes are blocked
Exhaust fan deterioration
High altitude mode is not set at highland
Lamp runtime is over
Lamp igniting error, lamp error, ballast error,
hot restart
Intake duct clogging
Ballast block error
Lamp is not installed or wrong lamp installed,
Connection error on the lamp memory cable
INF-27
OSD warning
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46ºC (High-altitude 41ºC) a
TEMP WARNING On
44ºC (High-altitude 39ºC) a
TEMP WARNING Off
89ºC a TEMP WARNING On
85ºC a TEMP WARNING Off
"REPLACE LAMP IN ** MIN-
UTES, POWER WILL TURN OFF
AND GO INTO STANDBY MODE
AUTOMATICALLY."
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The count down number 10 to 1
will be indicated in **.