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  • New Electone E-70 - Excitement and Problem Solving

    Hello, I've just picked up an Electone E-70, and am very excited about it, and having a great time reading through this forum. I have a couple questions for the group:

    1) The previous owner said it took several minutes to warm up before it would produce any sound. We're apparently beyond that point now. It never produces sound from the keyboards. But, if I turn on the drum machine, and carefully hold the power switch, it will produce drum sounds for a few seconds. It does power up, all the annunciator lights work, and the horn does spin. Has anyone experienced this, and solved the problem? Bad power switch? Bad capacitors?

    2) Does anyone have a service manual. I can't find one in the usual places (eBay, Google).

    Thanks!

  • #2
    Martyl,

    I don't believe the E-70 has a "horn" that spins. It is likely a rotating drum in front of a speaker, but I'm not even sure it has that. I seem to recall that all the Yamaha's of that generation had electronic tremolos. EX-1, EX-2, etc.

    Send me a PM with your e-mail - I have a digital copy of the E-70 service manual in PDF format I can send you.
    Regards, Larry

    At Home : Yamaha Electones : EX-42 ( X 3 !!! ), E-5AR, FX-1 ( X 2 !! ), US-1, EL-25 ( Chopped ). Allen 601D, ADC 6000D. Lowrey CH32-1. At Churches I play for : Allen Q325 ( with Vista ), Allen L123 ( with Navigator ). Rodgers 755. 1919 Wangerin 2/7 pipe organ.

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    • #3
      It's a styrene drum tremolo in the E70, IIRC. A clone leslie (someone reported earlier today that their same series Yamaha had a tag on saying it was a genuine Leslie. The EX models were a later generation of Yamahas, yes electronic trem in them.

      The E70 is solid state and should not need to 'warm up'. I'd be thinking power supply issues, so once you've got the schematics, check all the voltages that should be present. We're regularly finding later Yamahas (HS and EL series) that are needing a full recap of the power supply (and often repairs to circuit tracks where the caps have leaked) so I have a feeling that's where you'll be starting.
      It's not what you play. It's not how you play. It's the fact that you're playing that counts.

      New website now live - www.andrew-gilbert.com

      Current instruments: Roland Atelier AT900 Platinum Edition, Yamaha Genos, Yamaha PSR-S970, Kawai K1m
      Retired Organs: Lots! Kawai SR6 x 2, Hammond L122, T402, T500 x 2, X5. Conn Martinique and 652. Gulbransen 2102 Pacemaker. Kimball Temptation.
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      Retired synths: Korg 700, Roland SH1000, Jen Superstringer, Kawai S100F, Kawai S100P, Kawai K1

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