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Hi! Is there any replacement value for st8812fx power transistor? Please give me an advise, thanks. Joel

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Posted on Jun 10, 2017

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daniel719
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SOURCE: Sony TV KV-32v15 Dead Power Supply

you should of recived a 0.01ohm resistor it is wite and sayes sony on it.
its a flame proof resistor that needs to be the very same
look for it on the pcb test it its probly open right.
ask them to send you the right part.
regards,
daniel.

Posted on Jan 11, 2009

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1 Answer

SABSTITUT OF TRANSISTOR D 5036


Welcome to Fixya Support,

We are Happy to assist you.

Substitute for D 5036 Transistor is
D5038
ST8812fx


I think it helps

Best Regards
Chandrashekhar Bhat

Dec 24, 2010 | Sansui 27" TV

1 Answer

Kvg21q1 no picture no sound and led not standby power on........


Hi,

That's correct. As you have no picture and no sound, you need to replace flyback and power transistor.

What i would advise you that you can purchase the flyback and Horizontal output resistor online and you can also fix it yourself. That would help you save certain bucks.

Any further help, let me know.

Thanks for using Fixya.

Do rate the solution as "Fixya" if 100% satisfied.

Apr 22, 2009 | Sony KV-35V35 TV

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test all HV mylar capacitor around the horizontal circuits.. usually .22 1600volts with color orange or blue..replace caps that value has changed..

Jan 23, 2009 | Compaq V700 17" CRT Monitor

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Still won't turn on


Hello mdavis111111,

Try to see if the Horizontal output transistor is shorted to ground by checking the resistance value to ground. Also check the Switching power supply Power MOSFET . These are two possible causes for your problem.

I hope this helps,

Thank you,

Shuttle83

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ds-2300 is the cheapest one unless you can find a ds-330

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if you have chirping sound .. check your horizontal out transistor that may be one cause there are seven or nine green lights around power supply see if all came on if not call me 520-248-4242 or leave message

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Toshiba CF3566A


follow the diagram, the base of the hor out should go to the secondary of the hor drive transformer, and going to the primary circuitry you should find a transistor, a small transistor, look for its collector and you should find a filter capacitor, may not be the same value but it is the filter capacitor.

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