Archive by Author

Synthchaser #083 – ARP Omni 2 Repair – No Output / Lights On, Nobody Home

Wrapping up the restoration of yet another dead ARP Omni 2, I hook everything up for testing & calibration, but there’s no output. Together we use some simple logic to figure out what’s wrong and fix the synthesizer!  

Leave a comment Continue Reading →

Synthchaser #082 – Sequential Circuits Prophet 600 Dead & Intermittent Key Repair

The Prophet 600 Panasonic keybeds often have problems with dead or intermittent key contacts. In this video I show you how to access the key contacts, and how to repair them for reliable long-term operation.  

Leave a comment Continue Reading →

Cold Solder Joints

I was working on an ARP Omni 2 and came across a really bad soldering job.  Someone had replaced the gating capacitors, but all of their solder joints were “cold solder joints”.  What’s a cold solder joint?  Well, first let me explain what a good solder joint is.  With a good solder joint, both the […]

Comments Off on Cold Solder Joints Continue Reading →

Synthchaser #080 & 081 – ARP Odyssey Restoration & Repair

First, we restore a dead ARP Odyssey. Not the new Korg one, a real vintage, 1973 Mk 1 Model 2800 Whiteface ARP Odyssey. We change the ICs, capacitors, sliders, repair a dead oscillator and a damaged power supply. This Odyssey gets the full Synthchaser spa treatment! Then, we use that ARP Odyssey as a test […]

Comments Off on Synthchaser #080 & 081 – ARP Odyssey Restoration & Repair Continue Reading →

Synthchaser #079 – Oberheim OB-8 Dead & Intermittent Key Repair

Most OB-8’s use a different style of keybed than found on other OB’s. These keybeds often have problems with dead or intermittent key contacts. In this video I show you how to access the key contacts, and how to repair them for reliable long-term operation. This OB-8 is for sale: Oberheim OB-8 Analog Synthesizer Keyboard […]

Comments Off on Synthchaser #079 – Oberheim OB-8 Dead & Intermittent Key Repair Continue Reading →

Synthchaser #078 – Oberheim OB-8 Voice Board Repair

A customer sent a broken OB-8 voice board in for repair. We locate and repair a damaged trace, replace an incorrect capacitor and test it out in one of my OB-8’s.  

Comments Off on Synthchaser #078 – Oberheim OB-8 Voice Board Repair Continue Reading →

Synthchaser #077 – ARP Omni 2 Phaser Repair

In wrapping up the restoration of an ARP Omni 2, I noticed the sound was ever so slightly off. Together we track down the problem and repair the culprit delay line on the phaser board of the synthesizer. Shows the importance of replacing all of those tantalum capacitors with my kit: ARP Omni 2 Capacitor […]

Comments Off on Synthchaser #077 – ARP Omni 2 Phaser Repair Continue Reading →

Synthchaser #076 – ARP Omni 2 Wood Side Panels

I was restoring an ARP Omni 2 and one of the leather sides was damaged, as they often are, so I made some replacement side panels from hardwood. In this video I pop them on we see what it looks like when it’s done. My video camera is lousy, and doesn’t do the wood justice, […]

Comments Off on Synthchaser #076 – ARP Omni 2 Wood Side Panels Continue Reading →

Synthchaser #075 – ARP Omni 2 Repair – Bass Note Problems

I troubleshoot and repair a couple of problems with this ARP Omni 2. First the lower bass voice is dead. Second, a weird problem with the low note priority circuitry of the bass notes is seemingly allowing more than 1 bass note through at a time.

Comments Off on Synthchaser #075 – ARP Omni 2 Repair – Bass Note Problems Continue Reading →

Synthchaser #074 – Yet Another LinnDrum Repair – Troubleshooting Dead Drum Sounds

In case you didn’t get enough LinnDrum repair excitement last week in Synthchaser #072, I’m back at it again, firing up a customer’s “Wildcard” LinnDrum, which was purchased in unknown condition and without a power supply. We troubleshoot and fix some dead and incorrect drum sounds and give yet another LinnDrum a chance at life. […]

Comments Off on Synthchaser #074 – Yet Another LinnDrum Repair – Troubleshooting Dead Drum Sounds Continue Reading →