The fuse inside an X68000 power supply is a small component with a critical job. It protects the mains input, wiring, rectifier, switching components, and, in…
Stories
Replacing the X68000 power supply fuse with the correct rating
Installing a New Internal Speaker in the X68000
The Sharp X68000 is often remembered for its sharp pixel graphics, powerful sound hardware, and distinctive tower-shaped cases. Yet the small internal speaker…
Building A Passive SCART Cable For The X68000
The Sharp X68000 produces the kind of analog RGB video that SCART was designed to carry. With the correct wiring, a European RGB television, professional…
Restoring the X68000 Floppy Drive Eject Mechanism
The Sharp X68000 remains remarkably usable when its mechanical assemblies are treated with care. Its floppy disk drive, however, is now old enough for dried…
Repairing the X68000 Joystick Port with a DB15 Connector
The Sharp X68000 remains remarkably usable when its small mechanical details are kept in good condition. Joystick ports, however, often suffer from cracked…
Replacing the X68000 clock crystal for accurate timings
The Sharp X68000 depends on several clock sources, and they do not all serve the same purpose. The crystal associated with the real-time clock keeps the…
Adding Active Cooling To An X68000
The Sharp X68000 was engineered for a time when its original components were new, clean, and operating within their intended electrical limits. Decades later,…
Running X68000 Games from a SCSI2SD Drive
The Sharp X68000 remains a remarkably capable gaming computer, but its original storage options can make regular use inconvenient. Floppy disks are slow,…
Building a Null Modem Cable for X68000 Serial File Transfer
The Sharp X68000 remains remarkably useful for transferring disk images, utilities, source code, and small experimental programs through its RS-232C serial…
Sourcing Replacement ICs for the X68000 Video Encoder
Replacing an obsolete video IC in a Sharp X68000 is rarely a matter of finding a modern equivalent and installing it in the socket. The computer’s display…
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.