* * * SYNTH & SAMPLER BINARIES * * *


EPROM
  • Why I Decided To Make Copies Of All My Synth And Sampler EPROM's
    • EPROM's are NOT permanent. They were designed to retain data for a minimum of 10 to 20 years. Some can still retain data after 30+ years. Synthesizers and samplers may suddenly stop working sometimes because the EPROM has failed. The electrons used to program the data will eventually loose their charge and leak out. Before this occurs, making a copy of an EPROM is easy if you have an EPROM burner or have a friend who owns one. Simply remove the existing EPROM, copy it, burn a replacement copy with the original factory binary code and plug it in place of the old EPROM

      In most cases, EPROM's with a clear quartz window are plugged into an IC socket and can be easily removed and replaced. Usually, there is a label on the top of the EPROM which covers a clear quartz window. This is to protect it from UV light and prevent accidental erasure. EPROM's without a clear quartz window are called OTP EPROM's (One-Time Programmable). On some synths and samplers, the firmware is installed on a MASK ROM. Just like OTP EPROM's, these do not have a clear quartz window. For Roland synths, MASK ROM's usually have the word "Roland" silkscreened on the top

      If your synthesizer or sampler has an OTP EPROM installed, then you are in the same boat as synth and sampler owners with clear quartz window EPROM's. OTP EPROM's are also susceptible to electron loss over time. These pose a greater challenge to replace because they are usually soldered directly onto the circuit board as a cost cutting measure. If your synthesizer or sampler has a MASK ROM installed, then the firmware data is permanently manufactured into the IC and there is no danger of the electrons leaking out because it's permanent storage, just like a ROM IC. The bummer is, MASK ROM's are soldered onto to the circuit board which makes it nearly impossible to upgrade to a newer firmware version

      If you don't have any experience working with EPROM's, I found that it's not so intimidating after all. In fact, with no previous EPROM experience, I found it quite easy and inexpensive. I've put together a Quick Start Guide for anyone just starting out. There are recommended parts to buy and a detailed process of how to duplicate synth and sampler EPROM's. From what I've read on the Internet, it's perfectly legal to post these binaries for downloading since you need to own the synthesizer or sampler hardware to use them*. I'm mystified as to how vultures on eBay are able to sell EPROM's of copyrighted firmware code for $80 a pop. For less than $80, you can buy an EPROM reader, some blank EPROM's and backup all of your synths and samplers yourself

                     Link Arrow EPROM Quick Start Guide

ANIMATED_STAR I want to send special thanks out to Guy Wilkinson (supersynthprojects.com) and Fred Vecoven (vecoven.com) for all the high‑tech info they have supplied to help me learn about this process. I could not have done it without their expert input!


* I have read, burned, installed and verified all firmware upgrades shown on this page
MODEL  EPROM LOCATION / NOTES                               ORIGINAL EPROM P/N VERSION  
KAWAI
K1r Main Board IC #7 (Yes... this binary differs from the K1 v1.3) MBM27C256A-20   v1.3  
 
ROLAND
ALPHA JUNO-2 Main Board IC #24 D27128D-2   v2.5  
D-110 Main Board IC #19 µPD27C256AD-20   v1.13  
GR-1 Main Board IC #20 AM27C512-120DC   v1.04  
JV-880 Main Board IC #17 (Soldered to the PCB on later models) D27C020-150V10   v1.01  
JX-10 Assigner Board IC #6 (ROM A - v2.30)
   + Lower Module Board (Left Side) IC #1 (ROM B - v2.10)
   + Upper Module Board (Right Side) IC #1 (ROM C - v2.10)
TC57256D-20
MBM2764-25
MBM2764-25
v2.30 + v2.10  
MKS-50 Main Board IC #7 (The label reads v1.02 but the binary file says it's v2.10) M5L27128K v2.10  
MKS-70 Assigner Board IC #6 (ROM A - v1.08)
   + Module Board B IC #1 (ROM B - v1.06)
   + Module Board A IC #1 (ROM C - v1.06)
D27C256D-20
TMSM27C128-2JL
TMSM27C128-2JL
v1.08 + V1.06  
MKS-100 Main Board IC #26 MBM27C512-25   v1.04  
S-220 Main Board IC #25 MBM27C512-25   v1.04  
S-550 Main Board IC #3 + IC #6 (Both IC's are soldered to the PCB for later models) M5M27C128K-1  -or-
ROLAND OTP EPROM
v2.00  
S-760 Main Board IC #15 (Strange... A 28-pin IC but the socket has 32 holes) AM27C256-15D   v1.11  
U-20 Main Board IC #8 (Read This) M5M27C100P  -or-
ROLAND MASK ROM
Read This  
U-220 Main Board IC #8 HN27C101G  v1.01  
W-30 Main Board IC #19 (EVEN) + IC #20 (ODD) MBM27C64-20  v1.03  

MISCELLANEOUS
APPLECD 150 Main Board IC #303 (A popular external CDROM for many samplers) NMC27C256BQ-200   v1.8g  
BEHRINGER BCR2000 I/O Board IC #6 SST39SF040   v1.10  
PLEXTOR PX-43CS Main Board IC #206 (A popular internal CDROM for many samplers) 27C1001-12F1   v1.01  
SGE MACH II Main Board IC #U94 (see Footnote #2 re: EPROM replacement) M27C512-15F1 or
AM27C512-255DC
  v1.24  

OTHER SOURCES FOR BINARY FILES
FIRMWARE DOWNLOAD SITE www.dbwbp.com 


Notes:
MODEL THE EPROM I BURNED TO REPLACE THE ORIGINAL CONDITION / SOURCE
ALPHA JUNO-2 M27C128A-12F1 (w/Quartz Window)  [1] NEW  / jk_parts
APPLECD 150 AT27C256R-45PU (OTP) NEW  / mouser.com or farnell.com
D-110 AT27C256R-45PU (OTP) NEW  / mouser.com or farnell.com
JV-880 AM27C020-150DC (w/Quartz Window) NEW  / jk_parts
JX-10 / MKS-70 Purchased Vecoven Upgrade ROM's NEW  / vecoven.com
K1r AT27C256R-45PU (OTP) NEW  / mouser.com or farnell.com
MKS-50 M27C128A-12F1 (w/Quartz Window)  [1] NEW  / jk_parts
PLEXTOR PX-43CS M27C1001-12F1 (w/Quartz Window) USED / Semi_Surplus
S-760 AT27C256R-45PU (OTP) NEW  / mouser.com or farnell.com
SGE MACH II M27C512-15F1 (w/Quartz Window)  [2] USED / UTSource
U-220 HN27C101AG-10 (w/Quartz Window) NEW  / UTSource
W-30 M27C64A-12F1 (w/Quartz Window) NEW  / jk_parts

   [1] If no option exists for EPROM P/N: M27C128A within your EPROM burning software, choose M27128A [STMicroelectronics]
   [2] P/N: AT27C512R‑45PU will NOT work as a replacement EPROM for the M27C512‑15F1 or AM27C512‑255DC with the SGE MACH II


info@super-jx.com
Comments/Questions?


(FYI - I do not sell EPROM's)

The Information On This Page Is Current As Of