Vintage Synth Repair

Le 26 janv. 2006, à 16:13, Bakis Sirros a écrit :

> the tape mechanism works and the tape rolls, but the
> delays are not sounding at all!!
> any ideas what could be broken inside the machine(and
> op-amp? something else?)to cause no tape-echos to
> sound at all???

Mhmmm I'd check first for faulty soldering (broken), some free cables…

Beyond that it's at component level.

> also, another problem: the tape-speed is not constant.
> in high-speeds it seems to fluctuate... any ideas
> about this? could this be healed with cleanign the
> tape mechanism?

Maybe, but you'll need the tech notes to troubleshoot the circuits 
anyway (as for problem n°1).

Denis =G)