Home › Forums › Vintage EHX › Drm 16 Bad sound

Viewing 9 posts - 1 through 9 (of 9 total)
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  • May 4, 2020 at 11:18 pm #86246
    Cibam
    Participant

    Hi, I just bought a drm 16 drum machine. there is a bad noise that looks like an electric pulse that follows the tempo and that merges with the kick.
    Vidéo link :https://youtu.be/QCN42LzQplk
    Thx for helping me.

    May 5, 2020 at 7:09 pm #126047
    Scruffie
    Member

    Likely just a bad capacitor, they’re 40 years old now.

    The 2.2uF on pin 6 of the 4093 would be a good suspect.

    May 5, 2020 at 8:17 pm #126048
    Cibam
    Participant

    Ok i try to manage it…thx a lot
    I m french sorry for my frenchglish ????

    May 5, 2020 at 10:30 pm #126049
    Scruffie
    Member

    Your English is fine :)

    If you’re in France and want it repaired (once lockdown is over) I’m in the UK and can fix it for you.

    May 5, 2020 at 10:47 pm #126050
    Cibam
    Participant

    I bought this drum machine last week from…uk !
    A Guy who repair vintage instr and drum machine says me that the problem could be with the ic OTA EH1048.
    Ic 9

    May 6, 2020 at 12:24 am #126051
    Scruffie
    Member

    IC9 has nothing to do with the tempo or the kick drum… and it wouldn’t be the chip itself or you’d have issues with the hand clap and snare.

    I can almost guarantee it’s just a worn out capacitor.

    May 6, 2020 at 9:21 am #126052
    Cibam
    Participant

    Ok, i ll let my drm 16 to a professional for réparation (more easy for me than send it to il).
    Thx a lot for your help … I let you know

    May 7, 2020 at 3:03 pm #126058
    Cibam
    Participant
    Quote:
    IC9 has nothing to do with the tempo or the kick drum… and it wouldn’t be the chip itself or you’d have issues with the hand clap and snare.

    I can almost guarantee it’s just a worn out capacitor.

    I have post a New vidéo here where you Can listen the volume max of my drm 16 and the electrical click…
    https://youtu.be/cp9-5SjETug
    The output level is terribly low !!!

    November 2, 2021 at 6:07 am #186191
    Cags81
    Participant

    Scruffie any direction for a drm16 that doesn’t appear to turn on? I have one that the power switch tests fine the foot switch tests fine voltage passes through the transformer and to the points I’ve tested with my limited knowledge

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