Question about Sony FD Trinitron WEGA KV-34HS420 34" TV

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Sony kv34hs420 shut off itself - Sony FD Trinitron WEGA KV-34HS420 34" TV

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Hi:
If you count the number of error blinks when it shuts this will let you know the error code you are having. If the red led blinks say 6 to 7 times after shutdown then pauses and does it all over again there is a problem with the deflection board or D Boardas sony calls it, It is usually related to the two Power supply regulators IC's on the D-board.

Posted on Nov 09, 2010

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Sony Trinitron KV34HS420-standby timer does 7 blinks when powered on


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7 blinks on the model above is an error code for faulty horizontal deflection circuitry. The B+ gone to excessive current that is detected by IC5007.
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Sony Wega KV34HS420


good day.

This might be a cause of loose contacts. Thats why your unit cannot hold to the operation much longer. Have the circuitry resoldered.


chris

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