Question about Sony FD Trinitron WEGA KV-SW29M50 29" TV

3 Answers

Sony tv model kv-sz29n50 trinitron

Whene i flug my tv i see in video horizontal block booth side there is waist video whene i flug my tv the power is off thene i turn on again i see the problem video there is waist and booth side is block hep me pls! thnks a lots!

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  • luckyjoy Oct 22, 2008

    yes the same the problem tv model KV-SZ29N50 SERIAK NO.1001409 POWER ~110-240 VOLTS 50/60HZ 138 WATS THIS IS ONLY I SEE BACK PANEL THE INFORMATOIN THANK YOU VERYMUCH SIR FORE YOURE HELP ME!

  • luckyjoy Oct 22, 2008

    MODEL KV-SZ29N50 SERIAL NO.1001409 A/CPOWER IS~110-240VOLTS 50/60 HZ 138 WATS YES THE SAME PROBLEM YOU SHOW ME THE SAME PROBLEM I WAIH YOURE REPLY THANKS ALOT SIR

  • luckyjoy Oct 22, 2008

    yes i see confirm isee the picture the same the problem on my tv vedeo

  • luckyjoy Oct 22, 2008

    yes i repair by my self i have i know basic electrnonics i finish tv vcr repaire in ics internationalschoolpaiselvania and finish electronics technology thanks for youre helf me give me idea what is couse off trouble capasitors or resistor on primary power suply

  • luckyjoy Oct 22, 2008

    this new model i dont have idea yet if you give me idia what pars i see i open on my tv one of pars is heat and one capasitor is over heat like capasitor but there is coil this parts is become melt can you help me sir for this problem my dont hav watching tv pls sir help me for this problem

  • luckyjoy Oct 23, 2008

    sir i waithing youre reply sir beacouse i go back to riyadh nex week i have many friend out thre all pakistani doctors i hope you help me sir

  • luckyjoy Oct 23, 2008

    the picture is narow and has black bars on the sides the problem is probably horizontal yok

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3 Answers

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  • Master
  • 10,594 Answers

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

sony tv model kv-sz29n50 trinitron - 7a33dec.jpg

Posted on Oct 22, 2008

  • 3 more comments 
  • Shahid Electronics
    Shahid Electronics Oct 22, 2008

    Ok, Thanks for update and reply.
    Let me know do you want to repair it by yourself or just want to know where can be problem in tv.
    If you want to repair at your own, you should know basic of electronics and some know how of tv repair like parts recognition and good solder work etc.



  • Shahid Electronics
    Shahid Electronics Oct 23, 2008

    I'm in Pakistan and due to time difference there would be delay in reply to your question.
    See below picture circled problem area of main board of your TV. You need to confirm / check Q505, L507, C567. These parts can be cause of problem.



    Let me know circuit code of defective parts found to provide you part numbers etc.
    Below is portion of Pin Amp circuit of tv for guidance.





  • Shahid Electronics
    Shahid Electronics Oct 23, 2008

    Problem is called Pin Cushion and its related to pin amp stage. (conjenction of horizontal & vertical pulses)
    Please do not mess with yoke or any thing else in tv.



  • euad Jan 27, 2011

    that was so accurate! thank you very much!!!

  • bluethunder
    bluethunder Oct 13, 2014

    tnx a lot sir for your guide, noted since im far from the unit which i trouble shooted, but i really appreciate your guide/advice, tanx once again

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  • Master
  • 899 Answers

You can ask me

Posted on Oct 23, 2008

Thks a lot sir i salve the problem to yore help i found one of tuning capasitor is crack and one of coil is burn deef burn on coil

Posted on Oct 28, 2008

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