Category: ARP

Today we refurbish the keybed of the ARP Quadra, test & replace the aftertouch sensor, and change out a few panel jacks before we fire it up and see if it works.

 

 

Continuing our restoration of the ARP Quadra, we tackle the two large analog boards and the CPU board–changing tons of IC chips and capacitors and refurbishing the sliders.

 

We made it to Episode 100! Hurray!

Forging ahead on the ARP Quadra restoration, I give you an overview of what the Quadra does and what’s inside of it, and we get started recapping and testing the power supply and several other boards.

 

It’s finally time for some ARP Quadra restoration videos! I’ve been sitting on some broken Quadras for a while and have finally found a good home for one of them. But, before I can commit to selling this Quadra and get underway restoring it, I need to know if the membrane panel works.

So in this video, I show you how to test out the membrane panel. Important to do if considering buying a broken Quadra, or if you have a Quadra with some bad switches.

Download reference sheet here:  ARP Quadra 15 Pin Membrane Panel Interface

 

Wrapping up the restoration of an ARP Omni 2, I had one problem left to fix. Static noise in the output, but only on the Strings. I show how I track down and repair the problem.

Buy this ARP Omni 2 while it lasts!

Vintage ARP Omni 2 Keyboard Synthesizer Overhauled with LED Sliders

 

Thanks for your patience, all ARP slider kits are now back in stock!

http://synthchaser.com/product-category/sliders/

 

A customer was told by another tech that his vintage ARP Odyssey’s filter was dead and would need to be replaced with an aftermarket filter. The customer liked the sound of his filter so he brought it to me and I de-encapsulated it and fixed it so he could get back the exact sound he valued his vintage Odyssey for.

 

Repairing another customer’s ARP Pro Soloist. This one had very few patches working when it came in due to bad switches and a faulty VCA. Also engaging the Wow touch sensor effect would short circuit the keyboard and cause there to be no output at all.

 

No, not repairing 4 ARP 2600s, making 4 repairs to the same ARP 2600…

In this video we bring life back to an ARP 2600 with 2 dead oscillators, dead sample and hold, and dead left speaker.

 

A customer sent in his Pro Soloist for repair because the touch sensor effects weren’t working and some presets sustained indefinitely after releasing the key. I also noticed several of the presets were dead. So we dive in and get this all fixed so he can get back to making awesome music with it.