Question about RCA F36650 36" TV

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Green is going, going, gone?

The TV first began showing signs of trouble with the vertical hold, the picture would slowly squeeze together. Sometimes this was fixed just by unplugging the TV. I would also like to note that there was also a small sparking when the TV was plugged in, or unplugged from the outlet.

The vertical hold was no longer a problem, but then the green was not appearing on the screen. When adjusting the screen with the controls on the flyback, the green would appear when adjusted fully to one side, appearing with bright trace lines and blurring out the rest of the picture. The picture returns to normal when adjusted so the green retrace lines are gone, but there is no green in the picture.

I thought that with all the problems this TV has with the Flyback Transformer, that I would replace it, along with the Horizontal Output Transistor. After doing this, and adjusting the screen level on the flyback, the picture was back to normal again.

But that didn't last long, when I went to make another fine adjustment on the flyback, the picture once again lost the green and would only appear when fully adjusted to one side.

Could this be a problem with a solding joint elsewhere on the board, or another component that is going out?

As is appears, not many local repair shop will work on a large screen standard TV, and being this set belongs to my retired folks, and they can't afford the expense of the repair shops that are out of town. Any help, or suggestions would be greatly appreciated. Thank you.

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Re: Green is going, going, gone?

I would suggest check the the secondary side of the power supply for around 130VDC if that voltage is found to be lower than 120VDC I would suggest to replace CP80 with a 100 mfd@250 vdc. Part # 218374
Check for these parts.

Posted on Jan 17, 2008

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