Mitsubishi Electric WD-57733, Service Manual

Page: 27 / 87

MODELS: WD-57733 / WD-65733 / WD-73733 / WD-57734 / WD-65734 / WD-73734 / WD-C657
WD-Y577 / WD-Y657 / WD-57833 / WD-65833 / WD-73833
Page 27
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.
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
Status LED Lamp LED Condition
Off Off Off Off (Standby)
Green Fast
Blink
Off Off Initialization (10 - 65 seconds) (AC Off)
Off Off
Green Fast
Blink
Lamp cooling (1 minute after PTV Off) (Fan
is still working)
Green Off Off Power On
Blinking Green Off Off Power On Timer is set
Power/Timer
LED
Status LED Lamp LED Condition
Off Yellow Off
Temperature high - room too hot.
Temperature sensor is disconnected
Off Off
Blinking
Yellow
Lamp cover open.
Lamp Failure - Lamp failed to turn On.
Off Off Red* Lamp is broken
Lamp turns Off during P-ON
Off Blinking Red Off Fan Stopped
Circuit failure (short)
Disconnected DVI cable, chassis to engine
Off Red Off No LAMP-EN signal from Engine to turn
the lamp On.
Ballast UART communication problem.
* 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.
NORMAL LED INDICATIONS
ABNORMAL LED INDICATIONS