Question about Sony KV-T29CF1 TV

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Dead Sony KV t29

Sony KV t29. worked well for years and suddenly stopped working....dead. When you switch on all you hear is a "bshh" sound then a ticking/pulse (about 2 per second) around the psu and eht side. Can't see any dry joints nor sign of overheating parts (by touch). I'm hoping someone has had a similar experience and can help. I have no diagrams . Plse help. much appreciated...Kind regards Marcie57

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  • Marcie57 Mar 29, 2008

    Thanks Mr Niceguy

    50% success so far. Found cracked joint and shorted 2SC4927. Where would I find the main regulator ICs and the white .1ohm resistor? Would apperciate you feedback

    Bst Rgds


  • Marcie57 Apr 02, 2008

    HI MrNice guy. Repaced the transistor and checked all components as described. No other problems. TV works wonderful now. Thank you for your help. Much appreciated. Have a good day. Marcie57


2 Answers

Excellent job

Posted on Apr 04, 2008

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Check the horizontal output transistor for short. if so then check main regulator ICs for short and white .1ohm resistor for open. also check horizontal transformer for cracked solder as this is the cause for failure

Posted on Mar 29, 2008

  • MATT BECKER Mar 31, 2008

    if you look at the deflection board from the bottom side. the regs and resistor are on the left side of board on other side a large transformer. they ar e3 legged devices. the resistor is acting like a fuse and can be easily seen from the top side. check all components and see where you get. remember to check the horizontal transformer for cracks, should be near C4927 i think that it is a 6 pin trans that is where the fail started.


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