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Any ideas on why a sony 42 inch lcd shuts itself off and won't come back on?

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It normally indicates a problem inside the tv. It may be as simple as a fuse in the back of the tv. It definaltey sounds like it needs servicing

Posted on Oct 25, 2008

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Sony 42" won't turn on


TWO things to look at---inspect the lamp this model should use for brightness. Look to see what lights on front of set are on or BLINKING.

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Tv remains on for about 20 minutes then shuts off by itself and won't come back on. please help


does the power indicator blink when the set shuts down? If so thats an error code let me know the number of blinks and I will assist with the reason why the set is shutting down.

Jan 20, 2012 | Sony BRAVIA KDL-52W4100 52 in. LCD HDTV

1 Answer

I Have a Sony 42" LCD television that ets hot to


This is probably a bad capacitor, if the tv is no longer on warranty I would way look on the power supply board inside the tv at the capacitors, they are the round cylinders and the bad ones will have a slight bulge in the top or worse, a good spot to see a little more info is http://en.wikipedia.org/wiki/Capacitor_plague/

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Hi I have a Sony Bravia KLV-40S200A which wont turn on. The standby button flashes five times then pauses for about 4 seconds then flashes again. Any ideas?


I had a similar problem with my 42 Inch Philips 42PLF5432D/37 LCD HD TV. It would turn on but then shut back off after about 10 seconds. Then it wouldn't turn on at all. The problem was a bad capacitor. Several bad capacitors. They are inexpensive and fairly easy to replace if you don't mind digging around in the back of your set and soldering some new ones on your Power Supply Board. Or take the less inexpensive route and look for a whole new Power Supply Board. Good luck. Hope this helps.

Dec 08, 2010 | Sony BRAVIA KDL-40S2010 40 in. LCD...

2 Answers

My Sony Bravia KLV26S400A has been giving me problems lately. It works normal initally and after a while it shuts itself off and the \"Timer/Standby\" light blinks 8 times. Any idea what the problem is?...


I had a similar problem with my Phillips 42 in. LCD HD TV.

Here's the problem. The Power Supply Board. I opened my TV up(warranty was up of course) and found several bad capacitors. Phillips and several other companies were sold capacitors that although were highly rated failed within 5 years because of a lack of preservatives. All sorts of electronic equipment is now being effected due to these defective capacitors.
Solutions?
1. Take it in and have it fixed
2. Open it up, check the board for faulty capacitors(bulged or leaking) Buy a new Power supply board and install it.
3. Remove PSB, remove faulty capacitors and replace with compatible new ones.
Capacitors are very inexpensive. Less than a dollar a piece.

Hope this helps

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2 Answers

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Power supply problem. Any light coming on at all? in the front panel or visible from the back through the case?

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LG TV


its sounds like the psu board i had the same problem costs £70 + £6.95 postage website is www.sjstv.co.uk/ if not. there is a helpline you can ring just give them your make and model number he will tell you its really helpful 09064701706

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3 Answers

Sony LCD Projection TV turning OFF!!!


I also have a Sony KDF-42WE655 42" Lcd television. We just changed the lamp (bulb) several weeks ago and has noticed that everytime we turn on the television it stays on about 30-40 seconds then cuts off. After about 15-20 seconds it cuts itself back on. Weird!! It must have something to do with changing the bulb!?!?

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