October 2022 – Synthchaser

Posted on October 26, 2022 by synthchaser

Oberheim Four Voice Synthesizer FVS More Repairs – Synthchaser #150

We repair another handful of problems with the vintage Oberheim Four Voice Synthesizer (FVS).

00:36 Dirty & misadjusted key contacts repair

04:37 Scratchy Pots repair

07:55 SEM4 no pulse waveform repair

10:59 Some poorly played sounds of the Four Voice

Posted on October 23, 2022 by synthchaser

Oberheim Four Voice Synthesizer FVS Repair – Synthchaser #149

We repair a handful of problems with the vintage Oberheim Four Voice Synthesizer (FVS).

00:14 Demo of some of the problems

01:27 SEM3 stuck on fix

03:17 More programmer problems

05:30 Why shotgun repairs are not always a good thing

07:30 Memory bank select repair

10:32 SEM1 & 2 Memory Mode repair

14:42 To be continued…

Posted on October 18, 2022 by synthchaser

Oberheim Four Voice Synthesizer FVS Tour Inside & Technical Overview – Synthchaser #148

I’m going to be doing some repairs on this Oberheim Four Voice synthesizer and I thought I’d make a repair video on it. But first I want to provide some better context for the repair work that’s to come. So in this video we’ll look at the inside of the Four Voice, see the different modules that make it up and discuss how they work together to make an amazing synthesizer.