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When you hit power the green light just comes on once and quickly goes off again. No sound or Picture. Can't see any blown diodes or resistors but have not checked them

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  • feistygurl69 Apr 04, 2008

    The model number to the tv is F32690 Atc number 113CAL chassis

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I would need to know your model number in order to offer any suggestions.

Posted on Apr 04, 2008

  • Sonny Berry
    Sonny Berry Apr 04, 2008

    I am very famillar with that chassis that has the gem star 4 module which basically controls the set powering up. here's the voltage requirements and proceedure for testing the module.

    1. With AC power applied to the set.

    2. Check BR104-14 for +5.2VE

    3. Voltage incorrect or missing, troubleshoot STBY power supply

    4. Check BR103-10 and 12 (Clock & Data) for +5.0Vdc and 5Vp-p signal.

    5. Signal present all the time troubleshoot main chassis and IR02.

    6. Check BR104-4, 6, 8, and 10 for proper DC levels. Incorrect DC levels disconnect

    BR202 and recheck.

    7. Correct DC levels with BR202 disconnected troubleshoot keyboard.

    8. Check for signal at BR104-12 and 13 when power button is pressed.

    9. Clock and Data signal present when power is pressed troubleshoot the chassis.

    10.Not present replace Gemstar module.

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