QU-32 dead fader motor

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This topic contains 8 replies, has 5 voices, and was last updated by Profile photo of Patrick Patrick 4 months ago.

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  • #69079
    Profile photo of nottooloud
    nottooloud
    Participant

    Used but new to me QU-32 arrived with one nonresponsive fader.
    Calibrate no response, hard console reset no change, firmware 1.93.
    How tough are they to replace?

    #69087
    Profile photo of airickess
    airickess
    Participant

    Sounds like you’ll need to get that serviced.

    #69162
    Profile photo of nottooloud
    nottooloud
    Participant

    The answer is, it’s tough. Double sided bard with SMB components, very difficult to desolder. Pretty good chance of destroying the board by removing a fader. A&H recommended replacing the entire fader bank to another poster. That’s 16 or 17 $33 faders and a populated circuit board. $500?

    Anyway, my fader #32 is now installed in place of my dead fader #2, and I take my new Qu-31 out to its first show tomorrow.

    #69171
    Profile photo of garyh
    garyh
    Participant

    If you link 31 & 32 does 32 still work as the R channel?

    #69172
    Profile photo of nottooloud
    nottooloud
    Participant

    Oh, interesting question. I’ll have try that. I’d guess not, because if you move either fader in a pair, they both do, and a missing fader reads as full up, +10, every time you change sends or layers.

    For my own use, I always have 1 channel with an omni condenser plugged in at FOH to feed SMAART and to record hall ambience, so I don’t actually need that fader for anything.

    #93834
    Profile photo of Patrick
    Patrick
    Participant

    I know this is an old thread, but did you happen to take any photos while you had it opened?

    FedEx just manhandled a QU-32 I bought used and faders 17-32 aren’t operating as motorized. Their position seems to be recognized, as I can move them in GEQ mode and see the white dot move, but they physically stay still upon mix changes. Wondering if you noticed a single power connector per bank that might have come loose in my case?

    #93838
    Profile photo of nottooloud
    nottooloud
    Participant

    Sorry, the only pictures I took were closeups of the motors, and the bit of pass-through circuitboard that I yanked out along with the dead one while learning how to desolder a double-sided circuit board. I ended up patching the through-hole with a really thin wire, and that mixer is still in service.

    #97064
    Profile photo of Chirag79
    Chirag79
    Participant

    FedEx just manhandled a QU-32 I bought used and faders 17-32 aren’t operating as motorized. Their position seems to be recognized, as I can move them in GEQ mode and see the white dot move, but they physically stay still upon mix changes. Wondering if you noticed a single power connector per bank that might have come loose in my case? have the same problem in last night Live show..
    What is the solution..??
    Have the first time problem in 4 years on this bord…
    Suggest me the solution please…

    #97084
    Profile photo of Patrick
    Patrick
    Participant

    Very sadly, for all involved, my solution was to return the damaged QU-32 to the seller and buy a new Presonus 32S. Re-seating connections between boards didn’t solve the problem, so there seemed to have been deeper damage.

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