Question about Sony FD Trinitron WEGA KV-32XBR400 32" TV

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Sony kv-32xbr400 hi as soon as i turn tv on , i see green screen and horizantal white lines.with in seconds screen gets brighter and tv shuts itself off. i do have this models repair manual. engin

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Hi The problem is dry joints on the vertical output ic for sure(commen fault with sony),ime in the uk and 99% of the time i get a call about sony tv its allways switches itself off, caused by dry joints.

Posted on Mar 27, 2006

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My tv wont turn on ,It seem it is going to turn on and close itself


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I have a sony trinitron kv-32xbr400 it works but the picture is almost like its out of focus it has lines running thru it


The description that you give indicates a video problem, it is a situation where the picture tube is over driven and makes the picture bloom and produces white lines on a angle, this is caused by an open resistor or a shorted video driver usually located on the back of the picture tube, "video board"

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1 Answer

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Many of the later model Sony TV’s have a built in self-diagnosis function. If the timer/standby indicator is blinking, this could be an indication of a problem with the unit. The diagnostic blinking will occur automatically with no action required by you to engage it. in yor case you have 5 blinks that´s why the last is short to be possible the count..Five blinks - AKB circuit (automatic kine bias), the timer/standby indicator blinks for about 30 seconds then goes to the self-diagnosis function. Something is wrong with the video. Check video out, Q705, 732, 761 and other components on the C board, also check Q218, 219, 220 on the A board. In addition, unit could be in IK blanking, try turning up screen slightly.

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1 Answer

Sony wega trinitron won't turn on


  • Four blinks - No vertical Deflection (V STOP), Screen goes to a single horizontal line then the video signal muted. Check IC1509, Q1505
  • Five blinks - AKB circuit (automatic kine bias), the timer/standby indicator blinks for about 30 seconds then goes to the self-diagnosis function. Something is wrong with the video. Check video out, Q705, 732, 761 and other components on the C board, also check Q218, 219, 220 on the A board. In addition, unit could be in IK blanking, try turning up screen slightly.
  • and some times the eprom ic is fulty ...
  • try to unplug your tv from the main power for 5 hours then press the power button and keep pressing for 7 seconds then release ,if this do not work ,you should take your tv to a qualified person
  • i hope this helps ..
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    The vertical output IC has failed/Power to the vertical IC is out/ or there is bad solder on the pins of the vertical output IC.

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    1 Answer

    Sony wega kv-32xbr400


    My sony is doing the same thing. but mine blinks 11 times. each time it goes to turn on i hear the clicking then nothing.

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    1 Answer

    Sony kv32v15, Red screen with fine horizantal lines then shuts off


    I would suggest to measure the 200 volt B+ at the CRT socket. If that voltage is found to be low, disconnect the socket from the CRT and measure again. If the voltage reading returns to normal you may have a defective CTR.
    Also check for open or defective diode on flyback transformer for the 200 vdc source.
    I would also suggest to take all the necessary precautions since you are working in a very high voltage area.
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    HEY WEGA-YOUR SET HAS A BAD VERTICAL OUT IC AND ANYTV GUY CAN REPAIR THAT FOR A REASONABLE (COMPARED TO REPLACEMENT OFSET) COST.JOE TV

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