Zx Spectrum Test Program Link Page

Determines if the custom Sinclair ULA chip is functioning. Keyboard Test: Checks for membrane faults. I/O and Sound: Checks speaker and tape port functionality. Official ZX Spectrum Test Program Link (Download)

Replace the flexible plastic keyboard membrane inside the case. zx spectrum test program link

: A widely used diagnostic tool (V1.54+) that performs deep hardware checks, including memory (Lower/Upper RAM), ULA functionality, and sound. It is often used with a replacement ROM cartridge Specasm Unit Test Suite Determines if the custom Sinclair ULA chip is functioning

Hey fellow ZX Spectrum enthusiasts!