Question about Sony KV-27S66 27" TV

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My sony kv27s66 turn on than off after one sec

My sony kv27s66 turn on than off after one sec

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  • Sony Master
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The tv got problems on the power suply thats why going on to protection mode

Posted on Aug 25, 2008

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Why does my rca 32" flat screen tv. when i turn it on the light on front comes on but the screen will come for a few sec. then go black ?


bad High voltage NPN power transistor
throw out the tv - get another one at a thrift store for $20 - I have seen sony wega at this price or free on craigslist

Jul 27, 2014 | RCA F32650 32" TV

1 Answer

Sony Kv27S66-I'm seeing horizontal lines through the screen the last few days. Checked the cable connection, reset the set-up, but no change. Color is still excellent on the TV, anything I can do or...


You must pull the main board out and re solder the vertical IC. This IC is mounted on a large heat sink. I remember that this vertical IC is of the TDA series. It would have seven pins. The pins will have to be re soldered, please do not use too much solder. You do not want to short the pins with excess solder. Next, you will need to check and replace the capacitors that are near and next to the vertical IC. We are talking about four capacitors, in this area. These caps, when weak, will create those horizontal lines you talk about. Second, the weak cap will cause the vertical IC to over heat and the pins will separate from their perspective grounds. Thanks for asking me, and show all hands of support!

May 06, 2011 | Sony KV-27S66 27" TV

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Hey! I'm trying to turn on my Sony Trinitron KV27S66 but it flashes the standby light and doesn't show an image. What is wrong with my TV? What can I do to fix it?


Hey there,

Is it set to the correct input?
There should be a button on the set or on the remote called "input" or "source".

If you're trying to watch tv, make sure it's set to Cable, etc.

Hope this helps!

Mar 24, 2011 | Sony KV-27S66 27" TV

1 Answer

My Sony Trinitron stand by/timer light is on and will let me put tv on but only stays on for a few seconds . Model #KV27S66 Oct 99


Your TV has an overload due to some faulty components inside it. This type of fault is usually noted with overheating of horizontal output transistor connected to LOT of the TV. This may be due to LOT fault, or fault to the transistor itself. When it overheats, it put a short between supply rail, and the power supply regulator system inside your TV will detect that short and will shut down automaticaly. Please note; if the TV works after some time, say after 15 or 20 minutes; and again shuts down after working for a short period, and the cycle repeats, surely there is a winding short inside LOT, which cannot be detected by normal multimeter measurments. If it is so, replace LOT and the horizontal output transistor at the same time.

Oct 14, 2010 | Sony Televison & Video

1 Answer

Sony triniton


Yes, The tv has no vertical deflection, Unplug tv,locate IC1509,Q1505 with a ohm.meter in the ohm. posistion, if faulty,replace them,the way to do that is on the board you will see the letters C=collector,B=base E=emitter,put the meter on dioed scale,take the leads from the meter and touch one to the E and one to the B at the same time, now reverce the leads to the same E and B ,if it reads in both directions its bad......unsolder with desoldering iron and replace it with same or sub. resolder

Feb 20, 2010 | Sony FD Trinitron WEGA KV-21CL10 21" TV

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Everytime i turn on my tv it will shut down automatically in 2 sec.


when i turn on my tv it displays red colour then it goes off after 2 sec

Dec 17, 2009 | Sony FD Trinitron WEGA KV-21CL10 21" TV

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Sony FD Trinitron Model: KV-32HS420. Turns on for 3 sec.


Its a problem with the capacitors on the main board. If you open it up you will notice that 1 or maybe two of them have puffed at the tops. Sony will fix this for you for about 200 buxs or if your able to, pull the capacitors yourself and take them to radioshack. You might spend 15 bux tops.

Jul 01, 2009 | Sony FD Trinitron WEGA KV-32HS510 32" TV

1 Answer

Sony kp53hs10


Try (with your remote) hit Display + Channel 5 + Volume - + Power hit each key within 1 sec of each other and the tv should go into error check mode on the screen and display some data, record that and google.

Mike

Dec 22, 2008 | Sony KP-53HS10 TV

1 Answer

Sony Wega


Please count light flashing again. Light flash time is "0.3 Sec" and there would be pause (light Off time) for "3 Sec". Start counting after pause to next pause.

May 31, 2008 | Sony FD Trinitron WEGA KV-34HS420 34" TV

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