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Mit dlp showing error code of 44 ( dvi cable disconnected from light engine)

Hello,
I am a tv tech that is working on a mitsub dlp that is showing an error code of 44, ( dvi cable disconnected from light engine.). the cable pins are checking ok, and the solder connections on both the framer module & interface module in the main cluster to the left of the light engine check fine. am I looking at a bad framer module, or maybe a bad board in the main cluster? I have already changed the 1000ufs@ 16 in the DM, & also the 3300ufs in the power supply that feed 5v over to the ballast for startup, but I have never seen this type of problem before. any help would be appreciated.
thank you,
david klebs
klebsguitars@yahoo.com

Posted by on

  • mkzar Jan 18, 2009

    I had red status light and an error code of 12 - everything ok. Replaced 3300uf's and others on the power board and 1000ufs on the DM board. Now I'm getting error 44 for a DVI cable. I feel like I fixed something! But I think it is either a bad power PCB or optical engine. Not sure I want to waste any more money on this 52525. Anyone have any ideas?

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Finding a Ballast for Mitsubishi WD-62327

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Posted on Feb 03, 2008

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SOURCE: M50WH72S

go to:
http://personafile.com/RCA-50-DLP-High-Definition-Television-Stand-Included-M50WH72S-P034909000018.htm

There you will find the information that came with the TV.

Posted on Nov 23, 2008

Shuttle83
  • 1139 Answers

SOURCE: ws-55511 DM 5volts draged down blinking led

Hello,

Did you check the caps on the DM board? They usually go bad after a period of time. Remove the DM board and the metallic cover and there should be 4 to 7 capacitors (There are different revisions of the DM board). Check these caps also, replace if needed.

Thank you,

Shuttle83

http://www.electron-age-technologies-llc

Posted on Apr 14, 2009

  • 668 Answers

SOURCE: want to replace caps which board is the DM board?

Once you take the shield assembly off, you will see a board, I believe it is the DM Board board. There are four Capacitors grouped together probably rated at 35v 1000 mfd, 105 degree. They should be replaced with 35v 680mfd,105 degree Capacitors. Now once that is done, there is another board under that one. This is the Format Board. It also has 4 Capacitors that should also be replaced. They are the same value as the first Board and should be replaced with the same 35v 680mfd, 105 degree Capacitors.
Please note the Flex connectors at the bottom of the DM and Format Boards. They may not be available from Mitsubishi any more so be gentle with them and make sure the are installed properly when reinstalling the Boards back into the chassis. There is one other Board you should look at. The Power Supply Board is the board on the back of the chassis and also has a number of Capacitors that fail. Most all of the Capacitors that fail through out this chassis will have bulging tops. So any you see bulging, you should replace whether they are on the DM, Format , or Power Supply.
I hope this helps,
Skyassoc

Posted on Jan 07, 2010

SD Tech
  • 14553 Answers

SOURCE: I have a Mitsubishi WS-65909 w/a steady blinking

Only one of two reasons for your problem--either the DM is bad OR:

These sets sometimes develop a problem with the front keyboard---micro switches in back of the plastic buttons can fail (reset one is common).

Remove front speaker grill and inspection plate behind it and follow the group of wires coming down from the front keyboard to the right top edge of the opening.

About 8 inches to the right you will find two plugs that are inline--they go to the keyboard--disconnect both and turn set on with REMOTE (remote receiver is behind the screen).

If the set now functions you have a bad micro switch on the keyboard (most likely the reset) and two choices---either leave the keyboard unplugged and just use the remote or remove entire screen and get at the circuit board and locate and replace defective micro switch.

Lots of people miss this as a possible choice--easy to do to either know it is the keyboard or not.

If set does not operate this way DM is bad regardless of how caps look.

SD TECH0d60ab8.jpg

Posted on Feb 08, 2010

Testimonial: "Thanks. I had found and tried the front control panel solution prior to your response but to no avail. Thanks for the help. Take care."

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How do I fix DVI cable between FMT and Engine disconnected


Are you sure its disconnected? It may have a FMT failure. The cable is inside the back of the TV. you need to remove the rear panel to see it. There should be a white ended cable that plugs in that looks like a monitor wire but short.

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Inspect the lamp first to see if shattered--set has a self check feature also:

Mitsubishi TVtroubleshooting
Here's something that might also be useful. After you turn on the set, and getthe regular red blinky lights, hold down the Device and Menu buttons togetherfor about 5 seconds.
The Power light will start to flash in a two digit sequence.
For example, 3 flashes, then 7 flashes = 37.
Here are the error codes, and the corresponding problem:
12 = No error detected, check power supply.
32 = Lamp Cover is open.
33 = Air filtercover is open.
34 = Lamp abnormality
36 = Light Engine (DMD or Lamp Fan stopped)
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38 = Lamp Temperature High
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Tv doesnt show anything


Got (if model listed is correct) any blinking lights?

Set has a self check:

Here's something that might also be useful. After you turnon the set, and get the regular red blinky lights, hold down the Device andMenu buttons together for about 5 seconds.
The Power light will start to flash in a two digit sequence.
For example, 3 flashes, then 7 flashes = 37.
Here are the error codes, and the corresponding problem:
12 = No error detected, check power supply.
32 = Lamp Cover is open.
33 = Air filtercover is open.
34 = Lamp abnormality
36 = Light Engine (DMD or Lamp Fan stopped)
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38 = Lamp Temperature High
39 = DMD Temperature High
41 = Short is detected
44 = DVI cablebetween FMT and Engine disconnected

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Hi, These are some codes to your DLP HDTV.

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) disc

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The error codes are all different for the various models. But your WD62327 is the VK26 chassis DLP heres the error codes and the meaning for your model. Let me know if you need more help.
12 No Error detected, check Power Supply
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 & Engine disconnected.

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I found this list of codes
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

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The Power light will start to flash in a two digit sequence.

For example, 3 flashes, then 7 flashes = 37.


Here are the error codes, and the corresponding problem:

12 = No error detected, check power supply.
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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Mitsubishi TV troubleshooting
Here's something that might also be useful. 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.
The Power light will start to flash in a two digit sequence.
For example, 3 flashes, then 7 flashes = 37.

Here are the error codes, and the corresponding problem:
12 = No error detected, check power supply.
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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1 Answer

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Here's something that might also be useful. 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.
The Power light will start to flash in a two digit sequence.

For example, 3 flashes, then 7 flashes = 37.


Here are the error codes, and the corresponding problem:

12 = No error detected, check power supply.
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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