Question about Sony FD Trinitron WEGA KV-36FS120 36" TV

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Color variation and blinking red light on bottom of tv

Having trouble adjusting color on the set. it is a 36 inch grand wega that is almost 7 years old. there is a blinking red light at the bottom of the set that blinks for 5 times quickly and then stops. the whites have become pink and the colors are horrible. the picture is also darkened...I have tried several times to adjust it but it doesnt help. can this be fixed? the set is too heavy to move...

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  • fran rolls Apr 18, 2007

    flashing light is constant and doesnt shut off after the set is on for a while. I removed the small speakers that were on top of the set but the color and blinking lights continues as first mentioned. Please advise...thanks fran

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The light flashing 5 times is normal at turn on as the set is monitoring current drain on the pictures tube cathodes. Any speakers near the set that have un-shielded magnets could possibly cause color issues.

Posted on Apr 18, 2007

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The tv is at least 17 years old.The blinking red light blinks 5 times ,then the tv picture goes off . The voice is still on


Five blinks is the error code for an AKB (auto kine bias) error. What this means is that the set isn't able to balance the three color guns (red, green and blue) of the picture tube properly, and it's blanking out the screen.

To get the proper colors, the signals for the three colors need to be balanced, and Sony sets have circuitry to do this automatically. Other brands don't, and when they go out of balance you see a picture that starts to show tinting or colors that are off. As the picture tube ages, it gets harder to adjust the balance until finally the AKB circuit can't anymore, and poof, the picture goes away. With a 17-year-old tube, it's not surprising.

There isn't anything that can be done to fix the picture tube, it would need to be replaced. But the cost of the tube and the work required to get it set up after installation makes it completely uneconomical to repair this TV. A new picture tube is nearly $200. Then special tools are required to set the tube up (a process called convergence), so you'd need to find someone to put it in, and possibly pay to have the old one disposed of. A new 32-inch LCD set is around $350 now. Treat yourself to a new one.

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If a red light flashes for more than a few minutes,disconnect and reconnect the power cord.
Check the TV/VIDEO settings
make sure you have inserted the batteries correctly to remote control.
Try another channel to rule out of station trouble.
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good luck ! please dont forget to vote if this suggestion is helpfull.

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Yes this sounds about right for a set this age.

May 02, 2007 | Sony FD Trinitron WEGA KV-36FS120 36" TV

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