Analog Synthesizer Service & Modification

Prophet 5 Specialist

Service

MIDI Retrofits

Located in the Northern California Bay Area.

Prophet 5 Upgrades

KORG PolySix MIDI

Service for many older analog synths --  particularly Sequential Circuits (Prophet 5 rev 2 & rev 3, Prophet 600, SixTrak, Multi-Trak, Pro-One), Korg PolySix & MonoPoly, Oberheim Two-Voice & Four-Voice, ARP Odyssey; service for other synths is also available (contact me at the address below). Calibration, repair, ROM upgrades, MIDI installation, oscillator tuning, key contact cleaning, power supply repair, keyboard bushing replacement, etc.

SixTrak Individual Output Mod

Synths for Sale

NEW -- Memory expansion for the Rev 2 Prophet 5 -- $120 installed. 120 patch locations onboard -- see Prophet 5 Upgrade page.

Detatchable Power Cord Mod Add standard 3-conductor socket & 8 foot cord to older synths like the Pro-One, Prophet 5, etc.                      $25

Special note on shipping synthesizers -- READ THIS BEFORE SHIPPING Due to the unreliability of the shipping companies , I can not be held responsible for loss or damage on synthesizers that are shipped to me for service, or that I ship back to the customer.  From now on, all damage claims & possible financial loss due to lost or trashed shipments is solely the responsibility of you, the customer -- I won't be pursuing claims with shipping companies any longer.  If you are uncomfortable with this, then by all means DO NOT ship your synth to me for repair;  you're better off seeking local tech support.

Note:  I've had requests for service on Moog keyboards -- unfortunately, I do not service these, as I feel they are best left to those with the experience & parts to treat them well.

Rates:

Bench time/labor:                $45/hour Parts:                                      cost + 10% EPROM Programming:       $5 Shipping:                               actual cost* *Shipping is via Fedex Ground (the least expensive/most efficient method I've found). Insurance is mandatory;  synth will be returned in the same box & packing as received. Synths will be photographed & tested upon receipt to document original conditon. Afterwards you will be contacted with an estimate of repair time, procedure & cost;  no service will be done without your permission.  Estimates are in "good faith";  if actual repairs exceed the estimate, you will be notified for approval. Any parts needing replacement will be replaced with equal- or better-quality parts (depending upon availability);  ICs needing replacement will be mounted in new sockets. Faulty EPROMS that can be reprogrammed will be charged $5;  otherwise you will be charged for the programming and the cost of the replacement chip (+10%). Note that if you submit a synth for which I don't have the service documents, there will be a delay while the documents are ordered. Recommended Maintainence -- Every synth that comes in should receive the following: --battery check & replacement (if necessary) --cleaning of keyboard contacts --cleaning of switches (& replacement, if necessary) --replacement of power supply capacitors (on any synth over 12 years old), and replacement of        regulators (if necessary) --clean out dust, cat hair, old food, etc. --test all switches, pots & features for correct function.                      Recommended Maintainence charge:  $75 - $100 (+parts, if required) (For example: a smaller synth like the Pro-One would be $75;  an OB-X or 4-Voice would be $100) I've owned, serviced & modified Sequential Circuits synthesizers since the early eighties; my philosophy is before all else, do no harm. I treat these machines (& my customers) with the respect they deserve. Contact me with any questions. Details, questions, more info:

Please note that while I don't provide service for electro/mechanical keyboards such as Hohner, Rhodes, Wurlitzer, Farfisa, Mellotron, etc, you can contact Matt Cunitz at Vintage Keyboard Repair: 510-527-2067 -- nice guy, quality service.