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Electro-Voice Q99 Power Amp

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    Electro-Voice Q99 Power Amp

    hi to all here..i have a problem with q99 amp with very low signal 1khz from generator 100-300mv the first two signal leds lights on the front panel and the red limiter led in booth chanels.when i rise up the signal fron generator the amp goes to protect mode and turn the signal low again the amp stays on.the output is working fine with no noise or dc on speakons.it happens something in the inpout is faulty smd component or what ever.thanks for any diagnostic help

    #2
    Re: evq99

    Hello, its 2-level class H amplifier. You can measure low and high rail voltages, you may have problem with high rail voltages.
    This is more power amp but same series.

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