Question about Sanyo DP42746 42 in. Plasma Television

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I have a sanyo plasma dp42545 plasma and the picture just quit working I have sound but no picture.What could be the problem I'm a tec savy person and could fix it myself if i knew the problem

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

freetek
  • 5568 Answers

SOURCE: no picture but sound plasma tv

If it is affecting video only, the display's power supply is probably at fault and without some technical background and a couple of test instruments, you will not be able to do the repair yourself. 
What you can do though is; unplug the set, let it stand overnight or at least several hours, remove the back panel and look for two separate boards with mostly larger components on them; they will have ferrite core transformers on them and several larger capacitors which are cylindrical and mounted vertically to the board.

 
Before touching anything inside, especially on either board, allow several hours to be safe since the larger capacitors can hold a painful voltage charge for some hours.  
 
The section most likely to fail and cause your problem will be one that you see associated more with the display than the incoming AC line; the latter is the main power supply and its failure would result in no sound or video. 
 
If you see signs of overheating such as discoloration of the board material, it may not be repairable but if you can find a part number on the board, you might be able to buy the power supply and install it yourself.
 
If there are no signs of heat damage to the board, there may be companies offering to repair it as a subassembly instead of repairing the whole set which could be much more expensive.


Posted on Oct 01, 2008

  • 2 Answers

SOURCE: Sanyo Sucks re DP50474 PLASMA

Call back and ask for a supervisor. I had the same problem and they are replacing the boards in my TV but I have to pay the labor. Insist on speaking with a supervisor.

Posted on Jan 13, 2009

  • 1738 Answers

SOURCE: 42' plasma won't show picture or sound.

It is your man power supply board.

Posted on Dec 09, 2009

  • 8457 Answers

SOURCE: Our Big Screen TV a 42

The problems must be trouble shoots by the shop.The priced to trouble shoot and replacing boards should aroud $500-$600 dollars.

Posted on Jul 14, 2010

  • 8457 Answers

SOURCE: My 27" Sanyo DS27800 when

U using the RCA AV cable Y,R,W plug into those tv video input holes wright?Tries another RCA Y,R,W AV cable,see if it work?U have tools like a soldering iron,a roll of solders,also can u do basic soldering?Tries take some alchahol clean the Yellow input hole and take the tv aparts resolders it connections joints,now the video out it should work again,if not yellow input hole might be shorted require replacing.

Posted on Jan 27, 2011

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1 Answer

Sanyo DP42545 no picture no sound


Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

Dec 06, 2014 | Sanyo Televison & Video

1 Answer

Hi have a Sanyo DP42545 no video, no sound looking for some help yes i am a tec


Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/

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Sanyo DP50710 50'' plasma TV turns on power light then turns off/ on on its own. No picture. After checking all fuses and capacitors, we installed rand new power supply board. Still the sa


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This set has LG insides, it will have failed on either the Y-Sustain PCB or the Z-Sustain PCB.

Quite common.

Repair estimates should be $250 - £350 depending on which has failed.

Stick it on eBay, it will fetch good money faulty.

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1 Answer

I have a sanyo DP42746 42in. Plasma. NO picture no sound.


EVERY brand has failures.

This is why I recommend buying the extended warranty. The repair would cost about $300-400. It is most likely the power supply, you could replace it yourself, but the parts are very hard to find.




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Ysus board number for a sanyo 50'' plasma model dp50747


This is a Sanyo Vizon 50" plasma the model number is DP50747 .. hope this helps the website for this product is www.sanyoctv.com and the phone number is 1-800-877-5032

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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

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