U-20 ZONE



UPDATES: March 2017

INFO
     U-220 Power Switch Replacement - Part Numbers, Pics, Repair Tips and Vendor Info
     "Roland U-20, U-220, & U-110 Facebook Group" Link Added - Closed group discussions for U-Series synths
     Boring Red LED's Replaced - Color coded LED's make visual ID easier - Blue/Green/Red/Orange/UV/Yellow



UPDATES: October 2016

UTILITIES
     Spare Parts Cross Reference Chart - The SEARCH is on!



UPDATES: July 2016

UTILITIES
     SysEx File Verification Utility v1.(1b) - Great utility for synth/sampler SysEx file matching



UPDATES: 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



UPDATES: October 2015

UTILITIES
     U-20 Control Jack Templates - Allows easy access to Audio Ports and Control Jacks on the back of the synth



UPDATES: 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



UPDATES: July 2015

INFO
     SN-U110 PCM Card Sound Charts - High resolution scans of all fifteen SN-U110 PCM Card original inserts

UTILITIES
     Keyboard Report - Keyboard Magazine 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



UPDATES: 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


UPDATES: March 2015

     New U-20 Homepage Goes Live!




U-20 ZONE     U-20 ZONE U-20 ZONE - BATTERY U-20 ZONE     U-20 ZONE

U-20 ZONE