Question about Mitsubishi WD-52525 52" Rear Projection HDTV

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Signal board Hey wich one is the signal board? Also PTS quoted me $249 to repair the format board, I am pretty sure that that one board was my problem, I checked over the rest of the boards and other than a few bloated Caps They looked fine, I am in the process of replacing those caps and just waiting on the format board to return from repair.....thanks James

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  • xx007xx Sep 24, 2008

    do you mean the one that the cable card inserts into? if so I looked over it really well and changed out the 4 - 16v 1000uF capacitors for added insurance, I am gonna go ahead and put the tv back together without sending it out because they told me that they did some work on the format card and that tells me that that is where the problem lies, I also changed out the four same caps on the power supply card(two of them were bloated out and were about to go) thanks James

  • xx007xx Sep 26, 2008

    Well thank you very much, I just got my format board back from PTS and it costed me 264 dollars, but I am happy because five hours later I got the TV back up and running like a champ, glad to have my big screen back, thanks.......James

  • karimatuszyk Oct 01, 2008

    can anyone help me on tearing my tv apart..i got a wd52525 and can't get into boards cuz of silver covers..please email is


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The signal board is the one all the way to the left it has the one with the cable inputs ..1 to 3 (LF to RT) 1 = Signa board,2=DM board,3=FMT board....

Posted on Sep 24, 2008

  • lancergsr00 Sep 25, 2008

    ok give it a try, if it still have a problem try to check the signal board its the one with the coaxial cable ,the one where you connect the cable tv box ....


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When trying to adjust contrast, setting jumps from 42 to 58

oK, I will tell you what Philips told me some years ago about this set and others made at that time.

You have any unusual problem, remote does not work, sound goes out or up and down, etc etc it is the small signal module.

The set has a small signal board (from back it is large board on far left) and the small signal module plugs into it. SSM is about 4 by 5 inches and all surface mounted parts.

The board will have a part number on a label on it.

EVERYTHING is routed thru this board from either the remote or the front control board.

They may still be available on an exchange basis from someone like PTS ELECTRONICS but were over 100 the last time I looked a few years ago.

95% chance your problem is that board.


REGARDS, sd tech

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1 Answer

Main board malfunctioning where can I get a replacement part? left part number at work - believe it is 933B86600

The boards are no longer available from Mitsubishi, which board (signal, deflection, power) are you looking for?

A national company called PTS ELECTRONICS does repair some boards.

Let me know actual problem and I can advise.

SD TECH (San Diego's #1 Mitsubishi tech)

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You have a small signal board that needs reworked. Also known as the convergence board. Send off to PTS Electronics.

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Where can I get a Mitsubishi Signal Board 930b881001 New or repaired

boards for these sets are never available any more from Mitsubishi----google PTS---they repair, rebuild all kinds of circuit boards.

Aug 06, 2009 | Mitsubishi WT-46809 46" Rear Projection...

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Whats with my tv?

Good Day;

Replace all caps that are swollen, but resolve your checker pattern:

1. Tile or block pattern replace D8F00 and D8F01 part # 264P828010, also replace C8F26 and C8F29 part # 141P148000 (1 uFD, 25 V) on the FMT PCB (part # 930B924002).

The diodes have a stripe (line) that is the cathode, at one end of the device, the board will reflect that line. Good Luck, big IRISH. PS ; De solder as best as you can, glue is under part, heat one end, while prying up, heat other end. It will come off with moderate to mid high heat.

Sep 01, 2008 | Mitsubishi WD-52525 52" Rear Projection...

1 Answer

Replace conversion board

Signal / Main PC board AKA the "A" board is send for repair only = PTS corp ....Part # TNPH 0370.....250.00 Approx.
Replace IC7001 & 7002....STK392-110 and inspect resistors.
If you have good electronic repair skills,you might attempt to
DIY...otherwise, hire a senior tech,if possible...............T.

Feb 06, 2008 | Televison & Video

1 Answer

Dvd plays fine sound/picture...No sound or picture with cable input

To answer your question no, there are no fuses associated with the tuner input - through the "F" connector jack.
You have there a V26 chassis which has, among other things, standard digital and analog signal inputs. If one works but not the other - and you've verified it's not the cable then the only alternative is the signal board, Mitsubishi p/n# 930b923002...
But don't rush out and buy this puppy, it's a fairly expensive board and there are alternatives to replacing it new or used - PTS Electronics can rebuild this board for half the cost of a new one and most techs use PTS for that reason.
My best advice is to have a qualified shop estimate the repair and if they decide that the signal board needs to be replaced and quotes you a price ask them then about having it rebuilt.
Also take the unit to them to save the pickup/delivery charges and ask for your estimate in writing...
Hope this helps!

Dec 06, 2007 | Mitsubishi WD-52525 52" Rear Projection...

2 Answers

Mitsubishi WS-65809 65 in Projection TV problem with vertical stripes

I'm fairly sure that the 2hdw board is the culprit here. The 2hdw pwb is Mitsubishi original p/n# 935c966001 which has since been substituted to p/n#935c966002 and costs roughly $420.00 dollars plus shipping.
It's a common failure in these units, but it's not a difficult repair for a reputable shop..
Another alternative is to have ashop pull that board and send it in to PTS Electronics for rebuild. That might save about $100.00 dollars.
Please don't rate me badly for the bad news.
Good Luck!

Nov 25, 2007 | Mitsubishi WS-65809 65" Rear Projection...

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