Led Indications & Self Diagnostics - Mitsubishi Electric WD-73C1 Service Manual

MODELS: WD-73640 / WD-73740 / WD-73840 / WD-73C11 / WD-73CA1 /
The front panel Status LED provides an indication of the set's operation and the possible cause of a malfunction.
STATUS LED Indication
Off
Green
Slow Blinking Green
Fast Blink Green 80 seconds after Power Off
Fast Blinking Green 1 to 3 minutes after Power
Restored from AC interrupt, Power On, System
Reset or Software update.
STATUS LED Indication
Steady Red
Steady Yellow
Blinking Yellow
Blinking Red then Blinking Yellow
SELF DIAGNOSTICS
A blinking red and yellow Status LED will indicate an Error Code that can help determine the cause of a circuit
failure.

The number of Red blinks indicates the value of the MSD (tens digit) of the Error Code.

The number of Yellow blinks indicates the value of the LSD (ones digit) of the Error Code.
Example: If the Error Code is "37", the LED will continuously blink Red three times, followed by blinking Yellow
seven times.
See the following page for a list of Error Codes.
To perform a System Reset, press and hold the Power button for 10 seconds. Or, unplug the set for 10 seconds
then restore power.
WD-82740 / WD-82840 / WD-82CB1 / WD-92840
LED INDICATIONS AND SELF DIAGNOSTICS
NORMAL INDICATIONS
ABNORMAL INDICATIONS
Number of Red Blinks  Number of Yellow Blinks

3
Error Code: 37
Condition
Off (Standby)
Power On
Power Off with Timer Set. Power On normally
Power Off Lamp cooling. Wait for blinking to
stop to Power On.
Boot-up. Wait for blinking to stop to Power On.
Condition
Lamp Failure (See Error Code 66)
DMD Temperature Excessive
Lamp Cover Open (See Error Code 32)
Circuit Failure (See Self Diagnostics)
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