Question about Sanyo DP42746 42 in. Plasma Television

Open Question

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

Posted by on

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad
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

Ad
  • 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

caroldon
  • 17130 Answers

SOURCE: The sound just suddenly quit on my Sanyo model

Test the preamp outputs - audio/line out - of the TV to be tested on an amplifier . If there is sound then the fault is with the power amplifier within the TV. If not there is fault in the SIF- sound IF and preamap.
To trace you will need to use a signal trace and injection with a voltage check on the output IC. If absent check for open fusible resisitors or if this burns out the IC is short and must be replaced. Check also the speaker.

Posted on Oct 05, 2011

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How do I go back to Digital add on search when my boyfriend scanned for the analog channels. Sanyo TV model # dp42545


Usually you have to go to chanel setup and scroll down to DTV setup up or DTV auto tuning and click on the remotes enter button and choose to scan for the Digital channels (DTV) Then tell your boyfriend that they don't broadcast in analogue anymore.

May 09, 2015 | Sanyo Televison & Video

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/

Dec 04, 2014 | Sanyo Televison & Video

1 Answer

Sanyo 50" plasma flatscreen, hdtv


Picture frozen on one picture for some channels and blank on others. Sound is on. What could this be? We have a 50" Sanyo. HELP!

Apr 13, 2011 | Sanyo DP32746 32 in. LCD Television

2 Answers

50 inch Sanyo Vizon Plasma TV. Has sound but no picture for last few days. 2 years old


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.

Sep 06, 2009 | Sanyo Televison & Video

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.




Aug 22, 2009 | Sanyo DP42746 42 in. Plasma Television

4 Answers

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

Mar 16, 2009 | Sanyo DP50747 50 in. Plasma TV

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

Not finding what you are looking for?
Sanyo DP42746 42 in. Plasma Television Logo

Related Topics:

112 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sanyo Televison & Video Experts

The Knight
The Knight

Level 3 Expert

75581 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

 Grubhead
Grubhead

Level 3 Expert

5487 Answers

Are you a Sanyo Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...