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Posted on Apr 15, 2009
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HORIZONTAL OUTPUT TRNSISTOR SHORTS WHEN POWER ON TV

TV SONY MODEL KV-29FV300, CHASIS BA5D HORIZONTAL OUTPUT TRANSISTOR D2645, SHORTS WHEN YOU POWER ON TV: CERO OHMS BETWEEN ANY TERMINAL BASE COLLECTOR AND EMITTER FLYBACK OK, NO ELEMENTS SHORTED, FLYBACK +B = 135V, POWER SUPPLY OK. AUDIO AND CHANNELS SELECTION WORKS WITHOUT HORIZONTAL TANSISTOR CONNECTED AND THEN :: LED FLASHES FOUR TIMES i DONOT HAVE DIAGRAMS THANKS AND REGARDS

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Akhtar

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  • Posted on Sep 11, 2013
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Hi in tv monetor crt use vertical yoke conaction ok when horezantal yoke conact then tv short pozetion 110volt 42 volt help please

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  • Posted on Oct 28, 2012
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My china tv kit in use monetor crt when conact deflaction then powersupply is 75 volt sereas bulb teak load

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  • Posted on Apr 15, 2009
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ALL the next is with the tv unplugged (NO NO power)

  • resold the jungle (video processor) all around
  • following the horizontal drive pulse path and arriving to the horizontal area just after the horizontal transformer and in the base of the horizontal DRIVER there is a electrolytic capacitor (if this chassis uses this one,) Change it (maybe is dry)
  • solder all components i just told you in the last step. horizontal driver, transformer, etc
  • remember:
  • if a transistor is blowing with no reason (there is a reason: the collector receives 130 volts but cannot hold it forever, It has to be in some place. if the switching pulse doesn't arrive to it the transistor throws this 130 volts and burning itself. i hope it is help full.

  • Akhtar Sep 11, 2013

    hi in tv monetor crt use vertical yoke conaction ok when horezantal yoke conact then tv short pozetion 110volt 42 volt help please

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H out transistor defetive & number missing plz solve
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