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Old rca trouble

Discussion in 'Troubleshooting and Repair' started by Hsetech70, Jan 30, 2018.

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  1. Hsetech70


    Jan 30, 2018
    I'm working on a rca t-100 1950 b&w tv
    I have replaced all electrolytic and paper caps
    Checked all tubes and replaced one's that were bad
    Tubes & picture tube filament ok
    Picture tube is good with good emission
    Checked chassis mounted resistor(good results)

    Problem, no picture or sound
    Stumped, please help
  2. 73's de Edd

    73's de Edd

    Aug 21, 2015
  3. shrtrnd


    Jan 15, 2010
    By no picture or sound, do you mean the set is 'dead', or that you're just not receiving a signal?
    Do you have a raster on the screen, with associated 'noise'?
    You do realize no TV stations in the US transmit the old analog signals your set was designed for, don't you?
    All the TV signals are all digital now, and the tuner on your TV will no longer 'see' them.
    If your set is actually 'dead' (black screen with no audio at all), you've still got (at least) a power supply problem you'll have to fix first.
  4. elebish


    Aug 16, 2013
    To get the newly formatted tv signals to show on an analog tv, you must have a digital to analog converter, (about $50). That converter will convert the digital to an RF carrier modulated with an NTSC video signal no longer being transmitted. An old vhs vcr may be used also.
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