Question about Westinghouse SK-32H540S 32 in. LCD TV

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When i turn my tv on i can see picture for about 2 seconds, then it just goes black. how do i fix?

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  • 11,361 Answers

It can be the 24vdc power supply problem or backlight inverter problem, those are the palces to look.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.

Please post back what you find.

Posted on Oct 12, 2010

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6 Suggested Answers

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Posted on Jan 02, 2017

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dickgs
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SOURCE: TV turn on and off

Your TV has a power problem, it maybe high or low supply voltage that causes the TV to turn it self off because of an error. A technician from the manufacturer knows what error it has just by looking at the flashing standby light. Best is to take it to an authorize service center for repair... ^_^

Posted on Jan 16, 2008

  • 66 Answers

SOURCE: Sharp LCD TV picture goes off few seconds after

it has problem in picture tube

Posted on Nov 16, 2009

  • 2 Answers

SOURCE: Picture goes out right after turning on, have to

My 3 year old Sharp LC-40C32U would start up fine but within a minute would go dark (audio continued fine). For a while I could turn the set off and on again and it would be fine, but over time this became less effective. My solution, which has worked for a week now, was to a) unplug the set's power cord; b) after 3 minutes plug it back in and turn the set on; c) on the remote hit MENU and slide over to SETUP (3 clicks to the right if the screen is dark) and one up to RESET; d) hit ENTER and follow the prompts. This puts the set in it's factory configuration so you will have to rescan for channels. Worked for me.

Posted on Dec 15, 2009

  • 2 Answers

SOURCE: No picture

I had one that had a black screen and fixed the problem by repairing the inverter. When I opened the unit I looked at the capacitors on the inverter board and found them swollen. I looked at the bottom of the board and found that the fuse had opened up. The caps were a cheap quality low temp variety 150uF at 25V I replaced them with 330uF 25 volt 105C caps. I then replaced the 2.5A surface mount fuse with an axial 2.5A pico fuse and the TV worked beautifully.

Posted on Jan 08, 2010

  • 16 Answers

SOURCE: TV goes black

The power and inverter boards are combined in this model. If you inspect the three transformers that power the lamps you will most likely see that one or more is deformed (looks like it is slightly melted). You will also notice that the board under the transformer is discolored due to heat. This board is also known for bad solder connections. The actual repair would be to replace the transformer (T1, T2, or T3) but as of writing this I have not found that part available without having to buy the complete board.

Posted on Mar 23, 2010

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