The Sharp X68000 was designed around a sharp, low-latency RGB display, and its original CRT monitors remain an important part of the system’s character.…
Stories
Configuring X68000 CRT Monitor Geometry Through the Service Menu
Repairing an X68000 keyboard membrane with conductive paint
The Sharp X68000 keyboard is generally reliable, but age takes a toll on its flexible membrane. Key presses that once registered instantly may become…
Using the X68000 MIDI port with a modern synthesizer
The Sharp X68000 is often associated with arcade-quality graphics, FM sound, and distinctive Japanese computer design, but its MIDI capability gives it another…
Connecting an X68000 to a local network with EtherNEC
The Sharp X68000 remains remarkably useful when it is treated as a working computer rather than a sealed museum piece. A local network makes that approach much…
Installing a Gotek floppy emulator in an X68000
The Sharp X68000 remains one of the most distinctive Japanese home computers ever made, yet its original floppy drives are now among the least dependable parts…
Troubleshooting the X68000 DMA Audio Subsystem
The Sharp X68000 produces a distinctive sound through a combination of Yamaha FM synthesis and OKI ADPCM playback. When everything is working, games and music…
Restoring a Yellowed X68000 Case with Retr0bright
A yellowed X68000 case can make an otherwise complete computer look neglected. The discoloration is usually caused by oxidation in ABS plastic, especially…
Reproducing the X68000 Expansion Slot Cover with 3D Printing
The Sharp X68000 is known for its distinctive tower cases, generous expansion capability, and practical design details that are easy to overlook. One of those…
Adding VGA Output to the X68000 with a GBS-8200
The Sharp X68000 was designed around a 15 kHz RGB display standard, while modern VGA monitors generally expect a 31 kHz or higher horizontal scan rate. That…
A Practical X68000 Power Switch Repair Guide
A failing power switch is one of the more deceptive faults in a Sharp X68000. The machine may appear completely dead, start only after several attempts, or…
Nereid-X Expansion Board
A personally-produced LAN+USB+Memory expansion board for Sharp X68000 series computers. Multiple production runs were offered, including a final batch and a later revival reproduction run.
Power Supply Repair
X68 power supply repair and modification services were offered by the site owner, with documentation shared through diary entries spanning 2001–2006.
Server & Networking
Notes on FreeBSD administration, ISP changes, server migration, and networking topics. The site itself ran on FreeBSD with the hns diary system and Namazu search integration.
Get in touch
X68K.NET connects Sharp X68000 enthusiasts through community links and shared projects. Reach out with questions about the Nereid project or X68 resources.