Question about Sony FD Trinitron WEGA KV-21CL10 21" TV

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Sir, I have Sony Trinitron 21' KV2197 model TV which has twice been repaired ocally. The problem were of SMPS. But this time, again the set blown off expecting SMPS circuit problem vis-a-vis EHT problem as cut photos is seeing from botom side of the screen. I think to get the kit(board) replaced. Let me know: From where I can get 21' original sony kit. How much it costs. Can this be replced with some other equivelant/digital spare kit of other model. Can I replace the same as being TV Mechanic having experience more than 15 years. Regard, Harjinder Kumar.

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Posted on Jan 02, 2017

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welcomejee
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SOURCE: sony tv model kv-sz29n50 trinitron

Please confirm do you see this kind of picture in TV?
Mention exact model number to help you.

7a33dec.jpg

Posted on Oct 22, 2008

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techman
  • 3130 Answers

SOURCE: sony trinitron KV G21S2(i think)

Id you have no TV repair experience, play it safe and take the set into an authorized Sony repair place to estimate the cost to repair. Yes I know it would be nice to repair, but how much do you know about component level printed circuit board repair? You will need to first get a service manual, know how to read a circuit diagram, thats a schematic, and know how every circuit works with each other to make the TV set operate. I do appriciate the fact you would like to repair this yourself, but there is no magic fix in most cases when it comes to electronics. There is circuit diagnosise involved. Best advice would be to call in a pro to assist you in these types of repairs. Good Luck

Posted on Jun 23, 2007

SOURCE: Sony Trinitron Vega KV-34HS420

MUZ, 
Any luck with your TV yet?

Posted on May 21, 2008

  • 4234 Answers

SOURCE: Sony Trinitron 29inch Color TV

The 2 blinks are an indication of over-current. This is usually because of a shorted component. The most common is the horizontal output transistor. This will be a 3-legged part attached to a heat sink close to the flyback transformer (part with red wire coming out the top). This transistor will be marked C4856 or something similar. Update this with the exact marking and I'll provide you with the full part number and approximate cost.

Dan

Posted on Jul 14, 2008

  • 4234 Answers

SOURCE: Sony Trinitron Picture Tube replacement

I think that you will find the picture tube to be more expensive than a replacement TV, if it is still available (unlikely). That being said, it is also unlikely that the tube itself is the problem, The more common problem is the horizontal output transistor or the flyback transformer. Either part should still be available for a reasonable cost. Check with a local servicer for the part numbers and costs. These are common parts.

Dan

Posted on May 19, 2009

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