MZ-RH1 Compatible Display Modules
Photo credit: SirDreamWorks
The MZ-RH1 is widely regarded as one of the best MiniDisc portables ever made. However, it suffers from a fatal flaw: the original OLED displays tend to dim significantly over time due to a manufacturing defect. Now, 18 years after its release, many MZ-RH1 units have become practically unusable because of this issue, with the displays becoming nearly impossible to read. Until recently, there were no repair parts available to address this problem — but that has changed!
Over the past year, I have been a journey to develop replacement displays for the MZ-RH1. After much research and development, I am pleased to announce that these replacement displays are now available for purchase.
Custom display module, compatible with the MZ-RH1
FAQ
Q: Is the module a drop-in replacement?
A: Yes and no. While no electrical modifications or soldering are required, as the new display module connects directly to the existing FPC sockets of the original display, some physical modification is necessary. To properly fit the module, a small piece of plastic must be trimmed from the internal plastic bracket.
Q: What are there differences with the original display?
A: The new module uses modern OLED technology with a smaller pixel size, which results in sharper text but also slightly smaller content compared to the original display.
Q: Can anyone do the installation?
A: Installing this replacement display does require some technical skill. The MZ-RH1 is a delicate device, and improper handling during disassembly can easily damage the plastic components that hold the unit together. It is highly recommended to watch several instructional videos on YouTube that cover RH1 repairs before attempting the installation. If you’re not confident in your ability to perform the replacement, consider seeking help from someone with experience in electronics repair.
Q: Is there an installation guide available?
A: Yes! You can find it here: MZ-RH1 Display Module Installation Guide
Purchasing
If you’re interested in purchasing a replacement display module, you can do so through the following options:
- Entire world: You can purchase the modules from my Lectronz store. If you have a specific shipping preference that is not listed, please contact me through the store, and I will do my best to accommodate your request.
- Belgium: In addition to the Lectronz store, I offer the option to buy the modules directly from me in person in Brussels. This can be a great way to discuss the installation process or any questions you may have. If you’re interested in purchasing in person, please contact me by email to arrange a meeting.
Revisions
| Revision | Description |
|---|---|
| Rev-C | First prototype unit that was distributed among initial testers. |
| Rev-E |
First public version that was for sale to the general public.
Compared to Rev-C, it has an optimized form factor that simplifies installation and requires much less modifications to
the internal plastic of the RH1.
Early units of this revision, sold in late August / early September 2024, have a flaw where a static line might appear on the on the display. To prevent this, a single resistor should be removed from the RH1 mainboard to limit voltage overload. All buyers of this version have been contacted with detailed remediation instructions. Newer versions are not affected. |
| Rev-E* | A slight revision of Rev-E with double sided adhesive pre-applied for simplified installation. |
| Rev-F | This new revision has thicker copper lines and a slightly different layout that improves strength. This makes the unit more robust to forceful installations as it is less prone to damage. |
More info
If you’re interested in the development history of this module, you can follow everything on the Discord server of the MiniDisc Wiki.
Contact Me
You can always contact me through the Lectronz store, Discord, or by e-mail at sir68k at gmail dot com.