Question about Sanyo DP42746 42 in. Plasma Television

4 Answers

Sanyo dp42746 half screen blacking out

I have had this tv for only 2 years and from time to time the bottom half of the screen blacks out. It seems like if i shut it off while its happening then it doesnt do it as much. This is not an all the time problem, just when it wants too. Any help would be appreciated.

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  • jimmcbroom Aug 02, 2008

    same problem as above except top half blacks out more often than bottom

  • nicola420 Aug 10, 2008

    my TV was doing the same thing and it eventually all went black

  • Anonymous Sep 04, 2008

    i have the same problem. i owned this tv for almost 2 years then the screen would go half black on the bottom until i tapped it. eventually it went completely black and made a little pop sound then nothing. no sound no screen but the power light still comes on. i took the back off and saw the diagnostic light flashed 12 times. does ne one know what that equates to?

  • Anonymous Sep 04, 2008

    ne ideas can be emailed to ronmartin50@hotmail.com thanx

  • Anonymous Sep 06, 2008

    the whole screen will go black from time to time.

  • bigbronco01 Sep 21, 2008

    My tv started up with the top and bottom halfs alternately blacking out on and off occaisonally just 3 mons. after 1 yr. warranty expired! Now that its just hit the 2yr old mark it made a loud buzzing noise,there was an explosion of color in middle of the screen, then it just went completely black, no picture at all, just sound. Does anyone know what components could fail causing these problems? Many other people seem to be experiencing these problems! Any ideas would be appreciated! Thanks

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So you think the y board i going to try that i change the main logic and the componet tuner board email me back directly gcolella@snet.net these tv are so expensive and pain to fix

Posted on Aug 10, 2008

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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

Posted on Aug 08, 2008

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I have had this t.v for about 2 years as well and the bottom half of the t.v has complete went black...Now from time to time the whole screen will go black...Is there any help out there for this problem?

Posted on Sep 17, 2008

This morning I experienced the same problems until a whole bunch of red dots started appearing on the TV. Then all of a sudden the picture won't show up. It has, sound but no picture.

Posted on Aug 02, 2008

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1 Answer

Sanyo turn it on green light comes on and stays on but tv will not model dp42746


open back panel and look for error code

to test all y sub boards remove the main power connection to the y main and turn the tv on if it powers on one of those boards are bad.. remove both sub boards. and plug in the y main. if it powers on then that board is good either, put your multimeter on 2k omh and test the upper ysub boards black connector, the top 2 pins with negative to the 5th pin positive. you should read 500-1k ohm if its way under 100 there is a short.

the bottom ysub board place the multimeters black probe on the bottom 2 pins of the black power conection and the red on the 4th pin.. results are the same.

low resistance means theres a short in the board.

Oct 03, 2011 | Sanyo DP42746 42 in. Plasma Television

1 Answer

Picture goes black on bottom half of the screen


You have a bad connection to the panel or bad caps on the boards. Not something for the DIY'er. High voltages in plasma sets.

Mar 31, 2010 | 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

1 Answer

Total black TV


hey hello, you have a bad buffer board. some tvs have them on the sides and another tvs have top and bottom of the screen.it should not cost more than $150.00 for the board. i think that's too much.a tech will determine easy and fast the one that is bad. that is a fast repair good luck

caypianan@yahoo.com

May 10, 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

1 Answer

Screen goes black but still have sound


MINE TOO AND SANYO TOOK THIS TV OFF ITS SUPPORT WE SHOULD ALL SUE THIS COMPANY gcolella@snet.net

Jul 26, 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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