Question about Sony FD Trinitron WEGA KV-30HS420 30" TV

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Auto shut off

The red light blinks 7 times then shuts off

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  • mel_ga Jan 03, 2009

    I have the same problem and it is switching off every 10-15min now. Did anyone find a solution for this?




  • jchistia Jan 27, 2009

    I have the same problem and it is switching off every 10-15min now. Did anyone find a solution for this?

  • indigo9585 Feb 23, 2009

    I have the same problem. TV shut down now LED is blinking 7 times-pause-7 times. Have unplugged the set, bypassed the surge protector and still the same problem.

    Does anyone know is the fix for this even worth bothering? Has anyone had their's fixed? Cost?

    Thanks.

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Seven blinks - High voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits.

Posted on Jan 27, 2009

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1 Answer

Picture went out and no audio, red light on power blinks seven times and repeats.


Physically disconnect the SU board and the SD board. (See precaution # 5)

Plug in the TV and turn it on.

Does the TV shut down and the power LED

blink 7 times?

Yes

No

Replace the Panel and the SU board.

(See precaution #3)

Reconnect the SD board only.

(See precaution # 5)

Plug in the TV and turn it on.

Yes

No

With the SU board and the SD board still disconnected, remove connectors SC2 and SC20 from the SC board (See precaution # 6)

Plug in the TV and turn it on.

Disconnect the SD board and reconnect the SU board. (See precaution # 5)

Plug in the TV and turn it on.

Yes

No

Replace the Panel, SD, and SU board.

(See precaution #3)

Replace the Panel and the SD board.

(See precaution #3)

Replace the SC board.

(See precaution #3)

No

Replace the D board.

(See precaution #3)

Does the TV shut down and the power LED

blink 7 times?

Does the TV shut down and the power LED
blink 7 times?

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1 Answer

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90% of the time this is capacitor related in the power supply, Remove the back and check for capacitors that are domed shaped on top, Replace these and all should be ok.

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

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1 Answer

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the only way is by bringing to a tech.i think there is no need fro self-fixing with problems like this.try tapping the tv several times then turn it on.

May 28, 2009 | Televison & Video

1 Answer

TV shuts itself off..red light blinks 7 times.


The 7 blinks usually indicates a high voltage shutdown situation. Without the specific model, I can;t give you details about parts etc. The options are a defective flyback transformer or problem with the voltage regulation circuits. Please update this with the model number and I'll post additional details as soon as I can.

Thanks,
Dan

Jan 30, 2009 | Televison & Video

1 Answer

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1 Answer

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