I was working on a Roland KR-370 that had been through a lightning strike, and I was looking for the BIN file to program onto a replacement EPROM (IC2). I did eventually find one, posted by a very helpful individual in the Badcaps forum.
During my search, I encountered several enormous repositories of EPROM dumps (such as this one at dbwbp.com, which is worth checking out), and decided to reproduce them on my website, should anybody need one. They’re listed below, or you can download them from my file share.
This page offers a curated library of free EPROM dumps and OS ROMs for Yamaha, Roland, Korg, Casio, Kurzweil, and more. Whether you’re restoring a damaged keyboard, upgrading firmware, or preserving classic synth technology, these downloadable files can help you bring your gear back to life. Ideal for repair technicians, collectors, and DIY enthusiasts.
I recently have had a couple of people reach out about updating firmware on the Roland R-880. I have a separate article about the R-880 in particular.
Reading and Writing ROMs
Although if you’ve found this directory, you likely know how to use it! However, I struggled to find a programmer that didn’t look like a cheap knockoff—at least that didn’t cost a fortune. I ended up choosing the XGecu T48, which costs about $80. As best as I can tell, this is the name brand device the other mildly cheaper options are based on.
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Alexander Peppe • 4 Scammon St. Suite 19-406, Saco, ME 04072
Email: [email protected] • Phone: 207-400-6009
Full policy
All firmware and ROM images are © of their original manufacturers. They are linked here solely for lawful purposes such as archival, repair, and maintenance of vintage equipment. This archive is provided free of charge for educational and preservation purposes. The maintainer derives no revenue from these files.
By downloading these files, you agree that you own the original hardware for which the firmware is intended, and that you will use the file only for lawful repair or backup purposes. Use these files at your own risk. The maintainer is not responsible for any damage caused by incorrect use or any legal issues arising from unauthorized use of firmware.
The EPROM Directory
Want to Contribute?
You can upload EPROM firmware to me using this public upload directory. Once I’ve reviewed it I’ll add it to the list. Please either label it clearly, or contact me at the same time.
Meu Roland E70 na reenicia o reset de Fabrica,
poderame ajudar, a recuperar a eprom ou similar?
Hello Americo! If the E-70 powers on but won’t complete a factory reset, it likely needs to be opened for diagnosis. The first thing I’d check is the internal backup battery / coin cell that saves memory (if it’s dead or leaking, it can cause odd behavior). In the E-70, this is a CR2032. If the keyboard does not power on at all, then I’d also check the internal fuses and power rails. While there are EPROM chips inside, those are usually not the first suspect. You might also try test mode—I’ll email you with instructions.
Olá Americo! Se o E-70 liga, mas não consegue concluir o reset de fábrica, provavelmente será necessário abri-lo para um diagnóstico. A primeira coisa que eu verificaria é a bateria interna de backup (bateria tipo moeda) que salva a memória — se ela estiver descarregada ou vazando, pode causar comportamentos estranhos. No E-70, essa bateria é uma CR2032.
Se o teclado não ligar de forma alguma, então também é importante verificar os fusíveis internos e as tensões da fonte de alimentação. Embora existam chips EPROM no interior, eles normalmente não são o primeiro suspeito. Você também pode tentar o modo de teste — vou lhe enviar um e-mail com as instruções.
Olá, estou procurando o firmware para o Roland TD-10 versão 1.00. Agradeceria muito se alguém pudesse me ajudar.
Olá Facundo! Pesquisei mais a fundo sobre isso. Ainda não consegui encontrar um download público confiável do firmware original do Roland TD-10 v1.00.
Se o módulo estiver travado em ‘BOOT LOADER Ver. 1.00’, verifique também se ele tem a placa de expansão TDW-1, porque um TD-10 expandido pode apresentar problemas de inicialização se essa placa não estiver instalada corretamente.
Você pode responder com a mensagem exata que aparece na inicialização e se ‘TD-10 + TDW-1’ aparece brevemente ao ligar, pois isso pode ajudar a identificar melhor o problema. Obrigado!
Hello Facundo! I looked into this further. I haven’t been able to find a trustworthy public download for the original Roland TD-10 v1.00 firmware.
If the module is stuck at ‘BOOT LOADER Ver. 1.00’, also check whether it has the TDW-1 expansion board, because an expanded TD-10 can have startup problems if that board is not installed correctly.
You can reply with the exact startup message and whether ‘TD-10 + TDW-1’ appears briefly at power-up, and that may narrow it down.
Thank you!
Hey Alexander! A few years back I shared some ROMs on yamahamusicians.com and they ended up on dbwp.com with totally wrong titles – “YAHAMA” and PCV-87A. Aahahaha! And apparently those errors made it to the archive you host too. Actually, the dump is from a Clavinova CVP-87A, not PCV!
Now, if you can help me, I’m looking for dumps, or the eprom or the entire board of the same CVP-87A but the main ROM on the EPROM D27C8000D, labeled XM454B0 or similar, to try fixing my CVP-87A that’s been sitting dead since 2020. I really want to fix this piano because it was my mom’s favorite and bring me really good memories of her. Anyway, the electric/electronic parts of the board are good. I rebuild the entire board, changed all capacitors and the MCU as well. And I tested everything for faulty lines, shorts, open components, bad diodes or resistors. I can “see” the MCU talking with the PSRAM and the EPROMs with the oscilloscpe. Actually, I am a very experienced electronic technician and I didn’t find any more reasons why the MCU won’t boot. I know, this old stuff is very hard to find, so sorry if I’m bothering you But if you can help, I’d really appreciate it! Thanks!
Hello Fausto,
That’s rather humorous regarding the typo and its travels! I’ll get that fixed.
Unfortunately I don’t have a dump of the XM454B0/D27C8000D main ROM or a spare board to offer. These boards often do have capacitor-related faults, but it sounds like you’ve already been through that side of it very thoroughly. If you don’t already have the service manual, let me know and I’ll send it over.
One thought is that, even with visible bus activity, it still could be a power supply, since these boards can appear partly alive without actually booting. I recently had a rather vexing case where this turned out to be the explanation…!
Thank you!