UPDATES ARCHIVE
February 2024
UTILITIES
D-70 Review From Electronic Musician Magazine - An in‑depth review of the D‑70, the U‑20's big brother / September 1990
January 2023
INFO
U‑20 Keyboard Repair - "Space‑age" polyiamide flexi‑PCB replacement + aftertouch fix now available
Individual MIDI Channels - How to set MIDI channels for individual parts on the U‑20 and U‑220
FIXED/VARIABLE Micro Slide Switch - Description and instructions for using that weird switch on the U‑220
Custom 16‑Bank RAM Card - An amazing DIY multi‑bank RAM card for the U‑20 (and other Roland synths
UTILITIES
U‑110 Parameter Tree Structure - A higher quality scan of Page 42 from the "U‑110 Owner's Manual"
October 2022
UTILITIES
U‑20 / U‑220 Patch Reader v2.3 ‑ A major update adds Patch + Timbre name displays for the U‑20 and U‑220
September 2021
INFO
Video Review Of The U‑20 and U‑110 - Why these Rompler's were so popular in the 1990's
October 2020
UTILITIES
Original U‑220 Factory Patch Breakdown (Fork) - 300 DPI scan of the 16‑page booklet included with every new U‑220
August 2020
UTILITIES
Original U‑20 Sound Patch/Timbre Chart - 600 DPI high resolution scan of the Preset/Timbre laminated card
November 2019
UTILITIES
U‑20 Reference Cards v.2019‑11‑14 - 8 New pages added to this 'quick‑look' guide
May 2018
INFO
The Final U‑20 Firmware (v3.03) Is Now Available For Downloading
September 2017
UTILITIES
Roland Service Bulletin For The U‑20 MASK ROM - Installation instructions for this weirdo ROM chip
U-Series Vector Artwork - Logos and Buttons to spice up your webpages and documentation
INFO
U‑110 Firmware (v2.03) Is Now Available For Downloading
March 2017
INFO
U‑220 Power Switch Replacement - Part Numbers, Pics, Repair Tips and Vendor Info
Boring Red LED's Replaced - Color coded LED's make visual ID easier - Blue/Green/Red/Orange/UV/Yellow
"Roland U‑20, U‑220, & U‑110 Facebook Group" Link Added - Closed group discussions for U‑Series synths
October 2016
UTILITIES
Spare Parts Cross Reference Chart - The SEARCH is on!
July 2016
UTILITIES
SysEx File Verification Utility v1.(1b) - Great utility for synth/sampler SysEx file matching
March 2016
INFO
Power Switch Replacements For U‑20 - Comparisons, Recommendations, Part Numbers and Specs
EV‑5 Polarity Switch DIY - Schematic for modifying an EV‑5 to work with non-Roland gear
October 2015
UTILITIES
U‑20 Control Jack Templates - Allows easy access to Audio Ports and Control Jacks on the back of the synth
U‑20 Patch Reader v1.0 ‑ Patch name display utility for listing U‑20 info. Works with any browser so there's no software to install
August 2015
INFO
LCD Garbage Display Characters? - Don't despair... It's usually an easy fix
How To Turn Active Sensing Off - A MIDI pulse over the wire every 300ms? No Thanks!
Red Epoxy Syndrome - The red glue problem and how to fix it
U‑20 Main Circuit Board Replacement - Swapping out a v2.00 ROM PCB with a v3.03 ROM PCB
U‑110 And U‑220 Support Added - Specs, Tweaks, Images and Factory Resets
PATCHES
U‑110 Factory Presets - This SysEx Patch file is included for U‑110 Patch editors and coding apps
July 2015
INFO
SN‑U110 PCM Card Sound Charts - High resolution scans of all fifteen SN‑U110 PCM Card original inserts
UTILITIES
D‑70 Review From Keyboard Magazine - "Keyboard Report" column in‑depth review of the D‑70, the U‑20's big brother / August 1990
BATTERY REPLACEMENT
Test Procedures - U‑20/U‑110/U‑220, D‑70, Rhodes Model 660/760 battery tests and images
April 2015
UTILITIES
U‑20 Reference Cards v.2015‑04‑03 - Commonly used menu items all in a 'quick‑look' guide
User Tips - "Effective Memory Allocation For The Roland U‑20"
Magazine Ad - U‑20 full page advert from 1990
Keyboard Report - Keyboard Magazine in‑depth review of the U‑20 / January 1990
March 2015
New U‑20 Homepage Goes Live!
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