Question about RCA F31317 31" TV

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No blue color on screen

RCA mod# F31317 (svc# F31317-YX53), Chassis# CTC203CA6 Unit is approx 6 years old (per prod. date). Lost blue in picture. Picture has a sepia-like appearance. Reds are still good and green is there also. No noises occurred and there was no indication of a failure prior to the loss of blue in picture. Found service mode label inside case. Checked the blue control parameters. No adjustment can be made to the blue switches that have any effect on picture color quality. The red and green can be adjusted. The first 3 parameters are codes and each one shows code 24. I cannot find any info to define these codes. Checked the circuit board attached to the rear of the tube for cracked solder joints. No cracks visible but I touched a solder iron to each to attempt a possible fix to no effect. Checked all plug-in connections for tightness and cleanliness, NPF. I have not removed the main board to check for solder joint integrity. There are no visible damages or failures on the main board. There are 2 resistors on the tube board that have heat discoloring (blackening) around the solder joints on the board but the resistors appear OK. I figure this is just a normal time and miles (as we say in my business) effect. I feel that this TV may not be worth repairing. I need help just to pick this beast up (weighs in at approx. 120 lbs). A good excuse to get a LCD flat panel! Does anyone have any solutions that I could try? I have tried all search terms I can think of but find no similar complaints on the web.

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  • Milton Prescott Feb 10, 2007

    NO, I am not looking for help to lift the unit!!
    I did find some info but not much help.

  • Milton Prescott Feb 11, 2007

    Thanks for the quick response. The discolored area was only on the board. The resistors appear OK but I understand that can mean nothing. There are 2 identical resistors at the point I mention. I will pull both and check the resistance. If you would want a photo I can provide that easily.

  • Milton Prescott Feb 11, 2007

    Ohm resistance test results on R15101, 102 & 103 resistors.
    R15101 = 9.94k
    R15102 = 9.95k
    R15103 = 10.03k
    I would assume those are good resistors, well within tolerance.
    A closer inspection of the CRT board and best views of the main board reveal no obviously burnt components.



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Check for an open R15103 on the CRT drive board. It may have been one of those discolored ones you noticed. I think it is a 10,000 ohm 2 watt resistor. You may want to replace R15101 and R15102 at the same time to prevent those from going out as well if the 15103 resistor measures open after you remove it from the neck board.

Posted on Feb 11, 2007


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