Roland S-760 Rotary Encoder DIY Replacement
There are two ways to repair an S‑760 encoder:
- The Quick & Easy Way by using a custom encoder PCB, a new encoder and the existing connector wiring harness
- The Low-Cost Way which requires some DIY soldering by using the old encoder PCB, a new encoder and the existing connector wiring harness
At the bottom of this page is a diagram showing how to remove the S‑760 case and access the Encoder Board
The Quick & Easy Way
I've designed a replacement encoder board which is "almost" a drop‑in solution. This new PCB uses the existing connector and wiring harness on the sampler. Simply solder the old encoder board wires onto this new PCB and pop it in place. I've set the price with zero markup costs. The PCB Ships anywhere in the USA for FREE. Shipping is also FREE outside of the USA but some countries may have customs and handling fees added onto the final price. My investment costs in producing the PCB is zero... only my design time. You can order the PCB from OSH Park at a minimal cost here(Note: Because these are so tiny, OSHPark needs to sell a minimum of three PCB's at a time. The price works out to about $1 per PCB. Still a bargain! Especially if you have more than one S‑760)
Installation instructions here
The Low-Cost Way
I've included this method if the price to have a custom PCB (above) sent to your country is cost prohibitive. These are instructions from the old method I used before creating the new PCB. It requires some un‑soldering/re‑soldering, extra wires and reusing the existing encoder PCB and wiring connector harness. It's a lot of extra work but the price is minimal... Under $3 (USD)|
Bourns Encoder P/N: PEC11L-4225F-S0015 Mouser P/N: 652-PEC11L4225FS0015 Detents: 30 PPR: 15 Output Type: QUADRATURE Channels: 2 Shaft Length: 25mm (the original was 30mm) Price: $2.34 (USD)  Roland S-760 Rotary Encoder Replacement DIY (PDF File)
Exploded View Of The Original Encoder (Switch - Wipers - Rotor) Replacement Encoder Prepared With New Wires For Placement 
New Encoder Mod Soldered Onto The Original Encoder Board (Click Images To Enlarge) |
S-760 Case Opening
Safety Precautions
Modifications made to any factory stock equipment will always pose an element of risk. Sometimes mistakes are made which are irreversible. Improper soldering and handling of electricity can cause serious injury and damage the synthesizer. Use caution when handling static sensitive devices and the PCB. Make sure you are properly grounded, working on a static-free workbench or table and wearing eye protection during any soldering tasks. The author is not responsible for any damage or injury resulting from this DIY info. Use this DIY information at your own risk. And, I can't stress enough, the importance of wearing eye protection while soldering. That stuff flies everywhere sometimes!
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Last updated October 31, 2014
1) You may not copy, reproduce, republish, disassemble, decompile, reverse engineer, post, make available to the public, or otherwise use the content of this website (including all software applications, scripts, webpages, design elements, and graphics) for commercial gain in any way
2) By using the llamamusic.com website and its services you agree to be bound by these terms, which shall take effect immediately on your first use of this website. You may not use llamamusic.com services if you do not accept the terms. If you do not agree to be bound by all of the following terms please do not access and use llamamusic.com. llamamusic.com reserves rights to block violators of these terms from using its services or restrict their access in any form at any time
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