Question about Sanyo 42 in. LCD TV

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42 inch flat screen will come on but shuts off

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  • 115 Answers

Kindly let me know the interval between on and off

Posted on Apr 13, 2014

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

freetek
  • 5568 Answers

SOURCE: i turn on t.v. but 5 secounds the t.v. turns off

Loss of sound + loss of video = failed/failing main power supply.
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 a separate board with mostly larger components on it; it will have a ferrite core transformer on it and several larger capacitors which are cylindrical and mounted vertically to the board.

Before touching anything inside, especially on that board, allow several hours to be safe since the larger capacitors can hold a painful voltage charge for some hours.

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.
If you choose to replace or have it done, the power supply still may not be at fault since most are capable of switching on and off if a downstream problem is causing an overload.


Posted on Jul 24, 2009

gopakumarg43
  • 73691 Answers

SOURCE: 42 " flat screen Sanyo. no picture no sound, power yes!

The main board should be checked. For more details Type in this site name < Electro-help> (DO NOT copy and paste the site name from here. Doing so may lead you to wrong place) to search box of your search engine [not in the address bar of your browser], and press "Enter".

It is an electronic equipments service help site.

Note the position of hyphen in between words in site name. The site will appear as it is in web; subtitled as Service help to electronic home entertainment equipments.

Pull up older posts.

You can locate this site, either at the bottom part of first search page, or at the top of second.

Detailed descriptions are there to help you.

Check the associated ads related to electronic spare parts. You might get details about the availability and price.

Posted on Jun 08, 2012

spr1949
  • 1182 Answers

SOURCE: sanyo 2008 flat screen 42 inch no picture have sound

If the problem is same with different input devices and you have ensured there are no loose contacts in power outlet, RC jack, cable and sockets, the TV needs servicing.

Posted on Aug 27, 2012

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I have a Sanyo 42 inch T.V. and it suddenly shut off. I tried turning it back on by using the remote. the green light comes on for a few seconds and shuts off again.the screen never powers up.


call to the tv service center and do the required things my dear..........
plz dont try to repair it without any experts becoz tv when switched off also contains many voltage in it...

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