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Sony kv-34hs420 no picture our soud standby flashes 7 times

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  • joaorocha73 Apr 28, 2010

    kv-34hs420 flashes 7 times

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2 Answers

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  • Master
  • 8,619 Answers

Hi


Thanks for using FixYa. 7 blinks means High voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits. Also check the flyback transformer. Please do accept the solution if the issue is resolved or post a comment for further assistance.


Thanks
Rylee

Posted on Apr 28, 2010

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  • Master
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Hi,
Standby light flashing 7 times shows problem of Horizontal Deflection Stopped for some reason and it is hardware problem as few damaged parts would be replaced by qualified tech to get tv fixed.
Local tv repair shop will help you to repair it as it is not user level repair or matter of push few buttons on remote etc.
Hope this info will help you.
Thanks.


Posted on Apr 27, 2010

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Sony FD Trinitron WEGA KV-34HS420 34" TV Stand by


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  1. Turn off the television. IMPORTANT: For a projection television that uses an internal lamp, wait 5 minutes after turning off the television to allow the lamp to cool before continuing with the following steps.
  2. Unplug the television power cord from the electrical outlet.
  3. Let the television remain without power for 60 seconds.
  4. Plug the power cord back into the electrical outlet. NOTE: If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.
  5. Turn on the television.
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Source

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Sony kv-34hs429


The 6 blinks are a diagnostic code to indicate the problem circuit. I'm on the road at the moment, but will look up the code when I get to the shop. In the mean time, a few questions:

1) Does this occur all the time or just after or before a warmup period?
2) Have you noticed that this is occurring more frequently lately or did this just start?

Thanks,
Dan

Aug 07, 2009 | Sony FD Trinitron WEGA KV-34HS420 34" TV

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i would say this is a internal problem how long have you had it?

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normally this is because of a failed capacitor or two that is located on the power supply board. replacing the power board in this unit will fix this issue.

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That is an error code that tells the tech where the problem lies. It is probably somewhere in the power supply stage. Your best bet is to take it to a TV repair shoppe and let them deal with it. They have all the documentation in order to repair the unit, and they can tell you what the problem is before they work on it.

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Hello there,
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