Question about Sony FD Trinitron WEGA XBRKV-40XBR800 40" TV

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Sound suddenly comes low and sometimes fade out

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I got a problem my tv sony trinitron kv-xg29m20 the problem is when the tv comes on the picture is not full the sound comes then suddenly its cutsoff and the redlight flashes


By not full I assume you mean the picture is reduced in size all round. If this is the case then you most likely have a power supply problem. Check the HT voltage, if this is low then check all electrolytic capacitors in the power supply for reduction in value.
Regards Vintie

Oct 15, 2013 | Sony FD Trinitron WEGA KV-34HS420 34" TV

1 Answer

My sony vega comes on and has a normal picture for a while then suddenly fades to black and turns off while the red light at the bottom blinks. Is is a bad bulb?


How many time do this red light blinks at one time switch ON? Count it. These blinks are called fault indication, called blinking codes. If you wish to get more details about these blinking codes, check this site. It has blinking codes details to many brand TVs including Sony. http://electronicshelponline.blogspot.com/ Pull up previous posts, either by brand search, or view it in Mosaic / Timeslide / Flipcard option.

Aug 17, 2013 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

Sony KV-27S65 27" Television suddenly has very low volume


that problem is very common on a sony tv,the sound IF and video IF of your tv is bad..video and sound IF is located near the tuner section of your tv.some sony model,the IF section and TUNER section are packed in one enclosure. it your tv sound IF is packed together with the tuner,then replace the tuner with a new one.some are packed separately so you need to replace just the IF module only..you can also try to adjust the IF by using a plastic smsll screw driver adjust the IF clock wise or counter clock wise untill you achive a good reception do it with the tv power is on..be carefull with the high voltage...

tnx and please rate my help..

Jun 03, 2010 | Sony KV-27S65 27" TV

1 Answer

Philip 29PT6021 switched off suddenly


Capacitors problem in vertical circuit

Sep 12, 2009 | Sony KV-32FV1 32" TV

1 Answer

Bizzare problem with the color


Sounds like something may be wrong with your cable line might need to have it checked.

Aug 19, 2009 | Sony KV-32FS13 TV

1 Answer

Sony Wega 32in with a volume problem


use it with energy of any shockwave

Jul 11, 2009 | Sony Televison & Video

1 Answer

Sony trinitron 29 inch kv j29mn


Possibly dry solder joints or faulty coupling capacitors around the audio section.

Jan 20, 2008 | Sony FD Trinitron WEGA KV-27FS120 27" TV

3 Answers

Picture Fades to Black


Sounds to me like a bad solder connection. I would suspect the crt filiments first, since you said it fades out. Could be bad solder connections any number of places.

Feb 11, 2007 | Sony FD Trinitron WEGA KV-30HS420 30" TV

1 Answer

Sony KV-24FV12 Image intermittant Blackout


Hello Robert, the picture tube on your TV set is exausted. Please contact your nearest Authorized Sony Service for further help/advice. After all, Sony is a good choice. The next TV set you buy could be one of Sony-s Bravia LCD. Kind regards, Arpad

Dec 20, 2006 | Sony KV-24FV12 24" TV

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