Question about RCA F36650 36" TV

1 Answer

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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  • ithelps2help Jan 15, 2008

    Thanks for the quick response, any help is really appreciated.

    Serial # D435C2036

    Chassis # ATC113CA1

    I don't know if this is going to make things more difficult, but today I checked the Main PCB and did some minor cleaning, no fluids were used, just a soft brush. The TV was in storage for a short period and I thought that the weather may have caused some damage to the Main PCB.

    After checking the soldering joints, and doing the cleaning. I plugged in the TV, and the picture was very dark. I barely touched the Screen Adjustment on the Flyback, and the picture came in cystral clear with all colors present, including the missing green.

    The TV never had any problems until it was put into storage. I don't know if moisture could have caused some damage, and I really don't know where to look for it on the Main PCB. Some of the soldering has a slight "smokey" look to it. It took a couple months before problems started happenling.

    Thanks for any help.

  • ithelps2help Jan 18, 2008

    The TV is a:

    Model: RCA Model F36650 36" TV

    Serial #: D435C2036
    Chassis #: ATC113CA1

    Made: October 2003

    I'll check the Voltage on the Cap as soon as I can, but I thought I'd let you know that the picture on the TV is finally coming in clear.

    I did a minor adjustments on the Flyback, when the picture was appearing very dark when first turned on. The screen is now bright, but the screen takes awhile to appear and it seems the green is appearing first.

    Will let you know how things turn out. Thanks for help.

  • Vista Electronics May 11, 2010

    What is the Model # ?

  • Vista Electronics May 11, 2010

    What is the full service # off back of set??



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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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