Problem Need to fix the monitor on a cybelec cnc 7400 pp

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Thread: Need to fix the monitor on a cybelec cnc 7400 pp

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    Member spookydd's Avatar
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    Default Need to fix the monitor on a cybelec cnc 7400 pp

    A maintenance manual or schematics for the monitor on a cybelec cnc 7400 pp would be very helpful.
    I need to fix the monitor, that stopped displaying normally and now only display horizontal bars.
    From the symptoms, the horizontal and vertical sweep work, as well as the high voltage, and supplies. Plus the crt was displaying just fine before this happens, so that's not it.
    For reference, I'm attaching a photo of the monitor module.
    The daughter board has a couple of ttl logic ICs and high voltage transistors (300V) as output stage, which would be the video circuitry that I think might be processing the data coming from the character generating card in the rack.
    Any hints would be helpful, and a maintenance manual would be best.
    thanks all

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Need to fix the monitor on a cybelec cnc 7400 pp

Need to fix the monitor on a cybelec cnc 7400 pp