Question about Sony FD Trinitron WEGA KV-36HS20 36" TV

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Problems with Sony FD Trinitron WEGA KV-36HS20

After a couple of hours of watching my Sony TV the screen starts by going RED and after a couple of seconds it turns off. the power light blinks a couple of times. I wait for a couple of more hours and it works fine, but the same problems occurs again. How can I fix the problem.

Do I have hopes or should I just get a new TV? PLEASE HELP!!

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  • B Mena
    B Mena Jun 03, 2008

    Thank you Jerry.

    I took the back grill off and it has not gone off. So I think it is an over heating in some part. I am going to wash the grill and put it back. What should I do at this point? Should I still replace the power supply ?

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  • Sony Master
  • 1,635 Answers

The set is going in to the protect mode.

There are some components that have become thermo sensitive from age and use. After the defective parts come up to their operating temperature they go out of specs.

Most of the time this type of problem comes from the power supply. Sometimes it is from another board that is causing the shut down.

The fix is to start by replacing the power supply for a start. If there are still any faults, the tech will try the boards to zero in on the defective one. Once he locates the defective board, if it is not worth to service, he will leave the new board in the set.

This type of repair can be in the average range between $200 to the $500 range depending on the exact fault. This is providing that the fault is not inside of the screen itself.


Jerry G.

Posted on Jun 02, 2008

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