Led Indications; Led Indicator Diagnostics; Error Code Operational Check - Mitsubishi Electric WD-57733 Service Manual

MODELS: WD-57733 / WD-65733 / WD-73733 / WD-57734 / WD-65734 / WD-73734 / WD-C657

LED Indicator Diagnostics

The front panel LEDs provide an indication of the set's operation, and the possible cause of a malfunction. There are three
front panel LEDs, "Power", "Status" and "Lamp". The LED display shows the current status or indicates a possible
malfunction.
Power/Timer
LED
Off
Green Fast
Blink
Off
Green
Blinking Green
Power/Timer
LED
Off
Off
Off
Off
Off
* A red Lamp LED only occurs after 3 attempts to light the lamp.
Each attempt (pressing POWER) must be at least 65 seconds apart. .
During each attempt ballast striking may be audible.

3. Error Code Operational Check

Note: The TV must be in "Shut Down" and not have been switched Off, to perform the Error Code Opera-
tional Check. When the TV is switched Off, the code automatically resets to "12" No Error.
Pressing the front panel "INPUT" and "MENU" buttons at the same time, and holding for 5 seconds,
activates the Error Code Mode. The "TIMER LED" flashes denoting a two digit Error Code, or indicating no
problem has occurred since the last Initialization.
Note: The front panel buttons must be used, NOT those on the Remote Control.
•
The number of flashes indicates the value of the MSD (tens digit) of the Error Code.
•
The flashing then pauses for approximately 1/2 second.
•
The LED then flashes indicating the value of the LSD (ones digit) of the Error Code.
•
The Error Code is repeated a total of 5 times.
Example: If the Error Code is "23", the LED will flash two times, pause, and then flash three times.
WD-Y577 / WD-Y657 / WD-57833 / WD-65833 / WD-73833
NORMAL LED INDICATIONS
Status LED Lamp LED
Off Off
Off Off
Green Fast
Off
Blink
Off Off
Off Off
ABNORMAL LED INDICATIONS
Status LED Lamp LED
Yellow Off
Blinking
Off
Yellow
Off Red*
Blinking Red Off
Red Off
Condition
Off (Standby)
Initialization (10 - 65 seconds) (AC Off)
Lamp cooling (1 minute after PTV Off) (Fan
is still working)
Power On
Power On Timer is set
Condition
Temperature high - room too hot.
Temperature sensor is disconnected
Lamp cover open.
Lamp Failure - Lamp failed to turn On.
Lamp is broken
Lamp turns Off during P-ON
Fan Stopped
Circuit failure (short)
Disconnected DVI cable, chassis to engine
No LAMP-EN signal from Engine to turn
the lamp On.
Ballast UART communication problem.
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