JX-10 vs JX-8
Vintage speaker cab upgrade
Kenwood Basic X1 cassette deck repair
Infrared Remote Translater
New and updated pages
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Newest page first uploaded March 21 2026 16:19:23.
How to tune Korg Polysix
An addendum to the official service manual. Tip to use alternative notes and frequency chart.
Last update October 30 2019 18:55:38.
Simmons SDS 7
Understand the inside of your SDS 7 drum brain, for repair, mods or your curiosity.
Last update March 21 2026 11:02:19.
PG-800 programmer clone
An attempt to clone the sought-after PG-800 programmer for Roland Super JX-10, MKS-70 and JX-8P using Arduino developer platform.
Last update January 30 2018 22:10:31.
EPROM sample selector
Use bigger EPROM and split memory by addressing pins manually.
Last update March 21 2026 11:00:15.
They are not all alike
Proteus 2000 series different main boards and DACs.
How to identify EMU ROMs.
Last update June 06 2022 11:35:19.