Question about Sanyo DS31590 31" TV

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DP42746 SANYO 41'' TV

I HAVE NO PICTURE AND SOUND.PROBLEM STARTED WITH THE LOWER HALF OF THE SCREEN BLACKED OUT.THEN EVERYTHING WENT OUT.

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The problem might be in the electrolitic capacitors, replace them all, specially those that are located in the power supply. Check if there is one fisically damage, bubbled or inflated. Remember that they need the same capacitance (uf) and the same or higher voltaje.

Posted on Apr 12, 2009

  • luisrgomez Apr 12, 2009

    let me know if it worked please!

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I HAVE NO PICTURE AND SOUND. PROBLEM STARTED THE UPPER PART OF THE SCREEN
BLACKED OUT, THEN ALL OF THE SCREEN WENT OUT. WHAT CAN I DO?

Posted on Nov 22, 2008

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1 Answer

I have a Sanyo DP42746 and it is about 3 years old. Yesterday the picture went out, but the sound still worked. It went off for a minute and then came back on. It is starting to get worse in that it is...


For what it's worth, you can download the official Sanyo repair manual for this TV (DP42746) at http://www.eserviceinfo.com/downloadsm/43343/sanyo_dp42746.html. I uploaded it here when I had the same issue with my TV last year.
The solution is almost always to replace the Power Board (Y-Main) and the Upper and Lower Y Buffers. The parts and costs (from Sanyo in July 2009) are listed below (NOTE: Sanyo will not ship these parts to anyone but a repair shop):
1. V4 Y-Main (Y-Sustain) Circuit Board (Part # LJ92-01200A, Alt Part # LJ41-02759A) - USD $139.00
2. Upper Y-Buffer Circuit Board (Part # LJ92-01202A, Alt Part # LJ41-02760) - USD $64.00
3. Lower Y-Buffer Circuit Board (Part # LJ92-01203A, Alt Part # LJ41-02761A) - USD $64.00

Sanyo charges USD $10.50 for shipping, which brings the total cost for parts to USD $277.50. From my research, a shop would probably charge between USD $500 and $700 to do this repair.
FYI - there is a class action lawsuit pending against Sanyo for this issue. The V4 Y-Main (Y-Sustain) Circuit Boards fail VERY frequently in this TV due to overheating. Hope this helps.

Feb 23, 2010 | Sanyo Televison & Video

1 Answer

42 inch DO42746 no picture or sound


It is still possible the z sustain board is bad. or an x driver board.

Jun 26, 2009 | Sanyo DP42746 42 in. Plasma Television

2 Answers

DP42746 Sanyo 42'' Plasma TV-CLASS ACTION STARTED


Sorry you wont get any help from Sanyo or Wallmart. Buy another TV repair people will take your money.

Jun 23, 2009 | Sanyo DP42746 42 in. Plasma Television

3 Answers

Black screen of death - DP42746


I am a military spouse and our same tv did the same thing on Super Bowl Sunday 2009! We did everything we know to do: call the company, called the repair man, etc. There apparently isn't a solution to this that wouldn't cost more than the tv is worth. So I got an attorney to start a class action:

If you would like to be compensated for your TV please contact me @

Danimimozi@gmail.com


There are no fees or anything to do so.

Jun 05, 2009 | Sanyo DP42746 42 in. Plasma Television

2 Answers

No sound and black screen


lets get together, start a list of names and sue companies selling crappy wares at way too high prices! email saryejade@aol.com

Nov 09, 2008 | Sanyo DP42746 42 in. Plasma Television

4 Answers

Sanyo dp42746 half screen blacking out


http://cgi.ebay.com/philips-plasma-Y-board_W0QQitemZ270262136649QQcmdZViewItem?hash=item270262136649&_trkparms=72%3A552%7C39%3A1%7C66%3A2%7C65%3A12&_trksid=p3286.c0.m14.l1318

Jul 20, 2008 | Sanyo DP42746 42 in. Plasma Television

2 Answers

Sanyo DP42746 42 in. plasma TV


Well I have the same problem with green light and no sound and no pix. After i opened it all up i checked the main power supply board and found all fuses good and the 12vdc side of the board dead. My best guess is this power board has many problems. All the driver boards for the screen are located on the perimiter of the screen. If you loose part of the power supply board you will loose part of functions of the tv. At this time i am looking to replace the entire power board. Will let you know the location and fix soon as i find it. jim jamesgibson@nycap.rr.com

Jun 19, 2008 | Sanyo DP42746 42 in. Plasma Television

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