Question about Mitsubishi WD-52525 52" Rear Projection HDTV

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Mitsubishi WD52725 DLP

Hi!, I my Mitsubishi WD52725 has a solid Red status light. after turning the unit. The error code I get is 44. I have check the DVI cable, and it appears to be securely connected on both sides. Could you please provide assistance on how to troubleshoot?

Thanks

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  • fprihoda Jun 21, 2008

    The DVI Cable has been changed to a working cable (I validated this with my computer). Do you have any other suggestions? I am afraid that it is a light engine failure. Is there any checks I can do to confirm whether the light engine is still working or not?

  • fprihoda Jun 21, 2008

    I have the service manual, but from what I see, it only discusses how to change parts out. I have some of the wiring diagrams, but I don't know what voltages need to be verified. If you know the voltages to be verified could you please post.

    I am hoping this isn't a light engine and would really like to make sure.

    Is there a way to test the light engine independent of the TV itself?


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Your DVI Cable may be defective as a 44 code is DVI cable

Posted on Jun 21, 2008

  • Sonny Berry
    Sonny Berry Jun 21, 2008

    You would have to trouble shoot it with the service manual. If all the votages are correct and its not working then you can assume the light engine, but you will need to verify the voltages first as the light engine is exspensive.

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1 Answer

What is Mitsubishi DLP TV error code 44?


That is an Open(blown)

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My 73" mitsubishi dlp WD-73827 turns off and has a red status light blinking. I have replaced the bulb and the heat sensor... any answer to what else could be the problem?


It is helpful to have the sequence of the blinking red light. This may help:

MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927

Page 43

3. Error Code Operational Check

Note: The TV must be in "Shut Down" and not have been switched Off, to perform the Error Code Operational

Check. When the TV is switched Off, the code automatically resets to "12" No Error.



Pressing the front panel "DEVICE" and "MENU" buttons at the same time, and holding for 5 seconds,

activates the Error Code Mode. The LED flashes denoting a two digit Error Code, or indicating no problem

has occured since the last Initalization.



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.



4. Error Codes

The Error Code designations indicating malfunction, or no malfunction, are listed below:

POWER

LED

STATUS

LED

LAMP

LED

Power

Status Condition

Off Yellow Off Low

Power Excess heat. Check Lamp Filter

Off or On Off Yellow No

change

120w usage time over 7000 Hrs.

150W usage time over 3500 Hrs.

Off Off Blinks

Yellow

Low

Power Lamp Cover open

Off Blinks

Yellow Off " Filter Cover Open

Off Off Red Stby Lamp did not turn On

Off Blinks

Red Off Low

Power Fan Stopped

Off Red Off " Circuit failure (short or DVI

connector unplugged)

Abnormal LED Indications

Error Codes "DEVICE" & "MENU"



Error Codes Description



12 No error detected

22 Recovery from Reset

32 Lamp cover is Open

34 Lamp abnormality

35 DM Fan failed (Chassis Fan)

36 Exhaust or Lamp Ballast Fan failed

37 DMD Engine Fan failed

38 Lamp temperature abnormally high. Remove Lamp to check filter.

39 DMD temperature abnormally high

41 Short is detected (Standby Power Supplies)

42 Lamp Fan failed

44 DVI cable between Format and Engine disconnected

46 DMD Temp. Sensor not detected (check DT connector))

47 DM Temperature too high

48 Engine power supply short detected

51 Speaker Drive circuit short detected

52 HDD excess temperature (V30+ & V31 only)

55 HDD Fan Stopped (V30+ & V31 onlyt)

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Two thoughts:

First is this is a DLP set and the lamp may have failed

Second is it should have the self check which reads error codes---most of these sets that is the same:

" After you turn on the set, and get the regular red blinky lights, hold down the Device and Menu buttons together for about 5 seconds.
(then release both)

The Power light will start to flash in a two digit sequence.
For example, 3 flashes, then 7 flashes = 37.
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32 = Lamp Cover is open.
33 = Air filter cover is open.
34 = Lamp abnormality
36 = Light Engine (DMD or Lamp Fan stopped)
37 = Exhaust or Lamp Ballast Fan stopped
38 = Lamp Temperature High
39 = DMD Temperature High
41 = Short is detected
44 = DVI cable between FMT and Engine disconnected
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If you get the lamp abnormal it is likely your problem.

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BUT before you take the TV apart you can check the error codes by pushing "menu" and "Device" at the same time and holding for about 10 seconds. The status light will blink two numbers. ex. one flash pause two flashes is 12 Error Code Probable Cause

12 No error detected
22 Recovery from momentary Reset
32 Lamp Cover open
33 Air Filter Cover open
34 Lamp abnormality
35 Chassis Fan failure
36 Exhaust (Back Cover) or Lamp Ballast Fan failure
37 Engine (DMD or Lamp) Fan failure
38 Excess Lamp Temperature
39 Excess DMD Temperature
41 Short Detected
44 DVI Cable (between Chassis and Engine) disconnected


or use this table -

8566f47.jpg

You can buy replacement caps from Mouser electronics online. There are plenty of solutions detailing how to do this already posted.

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l#wd52725

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Hi troylove


the dvi cable could be bad in the set or needs to be sited. or one of the boards the dvi connects to. ( would bet it will be the DM board in the Chassis) it will need to be sent off for repair if it is the chassis.

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