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My Sony KV29LS60E shuts down after a minute or so,and then nothing is lit

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Turns off by itself

Looks like SMPS problem. Check the power supply circuits for any leakage or short. SMPS will shut down for any fault condition in the circuit. After checking finally check opto isolator in SMPS and replace with new ones.

DO NOT SWITCH ON TV if OPTO I C is removed. SMPS will go out of control and the power supply capacitors will explode due to raise in voltage!

Jul 09, 2010 | Sony FD Trinitron WEGA KD-32FS130 32" TV

2 Answers

Same problem - tv shuts down

Sounds like you've got a problem alright, It's definitely heat related. I would suggest unplugging it and having it looked at by a professional.

I am an electronics tech and can tell you that you should not try to fix it yourself. There are voltages inside that tv that can literally throw you across a room and kill you instantly,

Also, I advise leaving it unplugged until it is looked at, A short can cause a fire.

Sep 30, 2009 | Sony KV-36XBR400 36" TV

1 Answer

We have an RCA flatscreen TV, less than 6 months old, which will come on fine, but then after a minute the picture will go completely out. The audio remains just fine. When we shut down the TV and power...

have you look your sleeping timer on you tv isit on put it off right now if it continue behaveihg like that seek nearest sony daelers immedirtry coz your warrant is okey nice day

Apr 23, 2009 | Sony KV-36XBR400 36" TV

1 Answer

My Sony flat screen when first turned on will run just fine for about 30 minutes. Then it will start turning off and on about a dozen times, be ok for about 20 minutes and do it again. I finally just turn...

You might be able to see what is shutting the set off. Sony models employ a memory for failures. When the set is off push: Display, 5, Volume down, Power. Make sure your push all within 1 second. The set should come on with a display of the errors. A list of items followed by 0 ro 1. anything with a 1 has shut the set off. With that info at least you will know going to a Sony repair center what you can expect to pay or at least have a better idea.

Mar 25, 2009 | Sony FD Trinitron WEGA KV-32FS100 32" TV

1 Answer

Sony 36brx800 shuts off on own

As a TV tech the simple answer is no! If you were a well qualified electronics tech but just not used to TV's then the answer might be a very weak 'maybe' and that's if you had a TV tech talking you thru the whole process on the phone.

shutdown probs can be the power supply, bad solder joints, or also very likely the high voltage power supply. Meaning the area where the TV generates upwards of 30 thousand volts!! The set has overvoltage protection that makes sure that things don't completely fry, catch on fire etc.

Ya really need special training to avoid getting zapped with tazer like volts or worse! Sorry but safety says better stay out of this one!

Feb 11, 2009 | Sony FD Trinitron WEGA KV-36XBR800 36" TV

1 Answer

KV-27TH70 SONY TV Shuts Down for no Reason

hi there, normally bad/broken connections in the horizontal or on the flyback. hjope this helps.

Aug 04, 2008 | Televison & Video

2 Answers

Turns off on its own like it was in sleep mode

Probable bad connect / bad caps in power supply.......
Fixable .....usually about $100.00 in the shop..............T.

Dec 07, 2007 | JVC AV-27D305 27" TV

1 Answer

T V Shuts off by itself, after a couple of minutes.

Hi there,
here is some tips for ur TV which blinks 4 time.
1 Probable

Solution • +13V is not supplied.
(A Board)
• IC503 voltage list is faulty.
(A Board)


• Has entered standby state
Solution after horizontal raster.
•Vertical deflection pulse is
•Power line is shorted or power
supply is stopped.

this info must remady ur problem.

Dec 03, 2007 | Sony KV-36XBR400 36" TV

1 Answer

Sony TV kv29LS60e - over voltage protection

it is power supply problem. your oscillator for switching ckt or switching output failure. if you are not tech person call him for help. it is not a major problem good luck.

Oct 02, 2007 | Sony KV-29LS60 29" TV

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