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3. November 2019
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24. November 2019
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Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur Service

17. November 2019
Categories
  • Reparatur
Tags
  • Düsseldorf
  • Oberheim
  • OBXa
  • Repair
  • Reparatur
  • Restauration
  • Restoration
  • Service
  • Synth
  • Synthesizer
  • Synthrepair
  • Synthrestoration
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur

Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur

Today I write about a lovely piece of gear. An Oberheim OXBa with the following situation. "Switches on, but no "musical" sound except some noise here and there." I found out, that the main problem was no sound was stored in the memory due to an empty battery. When I manually designed a sound it started to work. Having done that I found the keyboard wasn´t working quite well. Not all keys were working, especially not in the first instance, and the keys itself were quite noisy (bad key bushings).
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
So one thing to do was to change the battery. I did that 1:1, so I put in a new 3 volt BR-2/3A lithium battery. Then I tried to load in the preset factory file via the cassette interface, but that didn´t work at this point. So I decided to clean the keyboard and the switch panel first. I cleaned all J-wires, the bus bar and the keys themselves. Here`s a picture of a dirty bus bar contact.
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Here it is half way cleaned.
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
And here it is fully cleaned with an eraser first and then with ipa.
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
I had to replace two j-wires as they were already loose and broke off while cleaning. Nothing serious, this was an easy fix. I then changed all the key bushings and cleaned every single key and reassembled the keyboard and adjusted the each key. Next was to clean all the potentiometer from corrosion, dirt and old grease.
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
All potentiometer worked much better, let's say worked great after refurbishing. While I am in here I took the change to replace the electrolytic capacitors on the from panel and on the psu board.
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
...with new ones.
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Now that I had the keyboard, switches and potentiometer cleaned I found out that the synth came back to life and sounds could be edited in manual mode. But some voices were detuned. While trying to adjust the tuning I found out that the red dip switch was corroed too so I had to replace it too. Now I could tuned the voice cards. There still was the problem that I could not load the factory sounds. I replaced some components in that circuit with nos and now that I could load the 120 patches it sounds just great to my ears (remember, I like club music ;)
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
There are lethal voltage exposed in electronic devices. Unless you know what you are doing, don’t try this. If you following along, you doing so at your own risk.

Caution


I’m documenting repairs for my reference and yours. I do synth restorations and repair with a specialty in vintage synthesizers, drum computer and other vintage gear, based in Düsseldorf, GER. Get in touch about your synth situation!
There are lethal voltage exposed in electronic devices. Unless you know what you are doing, don’t try this. If you following along, you doing so at your own risk.
 
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One more demo. That OBXa make so much fun to play with. 🕺🏻🕺🏻🕺🏻 #nextonthebench #vintage #analog #synthesizer #synth #repair #synthrepair #synthrestorations #vintagesynth #vintagesynthesizer #gear #gearporn #gearpost #geartalk #synthstagram #vintageandrare #studio #studioporn #studiotime #studiosession #inthestudio #producing #recordingstudio #vintagegear #keys #keyboard #Oberheim #obxa #oberheimobxa

A post shared by Jürgen Driessen (@jurgendriessen) on Nov 10, 2019 at 12:12pm PST

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Oberheim OBXa. 🔊🔊🔊Another demo. #nextonthebench #vintage #analog #synthesizer #synth #repair #synthrepair #synthrestorations #vintagesynth #vintagesynthesizer #gear #gearporn #gearpost #geartalk #synthstagram #vintageandrare #studio #studioporn #studiotime #studiosession #inthestudio #producing #recordingstudio #vintagegear #keys #keyboard #Oberheim #obxa #oberheimobxa

A post shared by Jürgen Driessen (@jurgendriessen) on Nov 10, 2019 at 10:41am PST

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This Oberheim OBXa is ready to go. What a great piece of music gear. 🔊🙏👏 #nextonthebench #vintage #analog #synthesizer #synth #repair #synthrepair #synthrestorations #vintagesynth #vintagesynthesizer #gear #gearporn #gearpost #geartalk #synthstagram #vintageandrare #studio #studioporn #studiotime #studiosession #inthestudio #producing #recordingstudio #vintagegear #keys #keyboard #Oberheim #obxa #oberheimobxa

A post shared by Jürgen Driessen (@jurgendriessen) on Nov 10, 2019 at 7:48am PST

Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur
Repair Oberheim OBXa Vintage Analog Synthesizer Reparatur

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Welcome

 

I’m documenting repairs for my reference and yours. I do synth restorations and repair with a specialty in vintage synthesizers, drum computer and tapedelays, based in Düsseldorf, GER. Get in touch about your synth situation!

My Clients

Marc Romboy
Steve Baltes
Robert Babicz
Nikolai Kaeßmann
Danilo Plessow (Motor City Drum Ensemble)
Wolfgang Voigt
Ramon Zenker
Markus Boehme
Ian Pooley
Kai Niggemann
Martin Gerke
Marcus Worgull
Stefan Robbers (Acid Junkies)
Stephan Römer
Stefan Teledgy
Oliver Keil
...just to name a few ;)

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Access Akai Alesis Analog Arp Digital Drums Display Drumcomputer Drum Machine Düsseldorf Electro Harmonix EMU Hohner JP-8000 JP8000 Korg LINN Linndrum MPC refurbished refurbishing Repair Reparatur Restauration Restoration Robert Babicz Roland sampler Service Solton Space Echo Synth Synthesizer Synthrepair Synthrestoration Tape Tapedelay Tape Delay TB-303 TR-909 TR909 Vintage Vintagesynth Virus yamaha

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