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Related Manuals for Din Sync RE-909
Summary of Contents for Din Sync RE-909
- Page 1 ...
- Page 2 This was produced as the result of a group formed on instagram to better assist that group with building, debugging, and making fine adjustments to our RE-909 builds. It’s ot an official document, rather, it is a collection of tips which were very helpful to us along the way.
- Page 3 1- OVERALL GROUND ISSUE FIX - GROUND & CROSSTALK FIX Hi, just wanted to share some good news about noise and crosstalk issues on RE-909. Pictured below is a Roland TR-909 factory mod with a wire that seems to reinforce grounding between C151 styrofoam cap in the hihat low pass filter and the common analog ground track where R236 is also attached.
- Page 4 3 - SWITCHBOARD PCB ERROR The pin numbers of the switchboard connectors were incorrect on the initial run. See the pin out/ destination diagram from the service notes (above) and be sure of your pins and destinations on your switch board (below). Check twice, solder once.
- Page 5 3A - RE-909 Cabling Guide Switch Board F4 to Voicing Board CN2 Switch Board F1 to Voicing Board CN3 29 — 11 1 — 29 30 — 12 2 — 28 31 — 13 3 — 27 32 — 14 4 —...
- Page 6 5 - SD ENVELOPE FIX RE-909 service advisory 15-12-20 We found a minor error in the snare drum that didn't come up in testing. Its a simple fix with a single patch wire, please download v.1.7 build documentation for details.
- Page 7 6 - BATTERY TERMINALS Affects all pcb versions, fix improves/solves memory retention issues. The battery terminal holes are missing the through hole plating, the fix is simple, please download V1.15 of the Build/ Bom guide for more details. 7 - MATCHING TRANSISTORS The following transistors MUST MATCH - The HFE readings should be exatly the same (ex: 290 hFe) Q6 (BD) Q28 (MT)
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