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MarkBass Issue - Studio Pre struggling at power on

Discussion in 'Amps and Cabs [BG]' started by Sandrow, Dec 9, 2018.

  1. Sandrow


    Dec 9, 2018

    I'm enjoying my MarkBass Studio Pre - Valve Preamp but some days ago an ugly issue appeared.

    The Preamp doesn't Power up, the fan is going on but no leds, no sound.
    No smoke or stink coming from the gear.
    No overheating on chassis.
    Never went out of its rack mount.
    The fan is free to flow air out, it's an open rack tower.

    If I go on trying to power it up it actually turns on after a while.
    If shuttle down and then on after few minutes it powers on again with no troubles, but if I let it Off for about 15 minutes, the issue appears again.
    I think the fan take its feed before the issue or from a non-affected power line, that's why it always work properly.

    It ran out of warranty.

    I guess it's something related to PSU circuit, but maybe someone experienced this issue before.

    Thank you very much.
    Best regards,

  2. You're gonna have to consult with a Markbass approved repair agent. If you're in mainland continental Europe then you should be okay. Anywhere else both you and your wallet have my sympathy.

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