This Cartridge is a 4in1 Diagnostic Cartridge to help troubleshoot and repair
ZX Spectrum's, 16k, 48k, 48k+, 128k, +2 (Grey).
And is essential to troubleshoot Memory and ULA problems.

1. Retroleum Diagnostic ROM v1.71 
(16,48,128k Memory, ULA and other System Tests).
By Phil Ruston

2. Smith & Alford Diagnostics, 0.37D  
(16,48,128k Memory, ULA and System Tests).

3. Official Sinclair ZX 48k Spectrum Test ROM, By Dr. Ian Logan
 (Memory and System Tests).

4. Official ZX Spectrum 128k and 128k +2, By Dr. Ian Logan 
(Memory and System Tests).


The EEPROM is pre-programmed with a range of diagnostic and test software.
This cartridge uses a quality Winbond 27C512 EEPROM,
With a user-friendly ROM selector switch and information to set the cartridge
 for each test program.
It also incorporates LED'S to indicate +5v, -5V, +9v and +12V when troubleshooting.
This Cartridge can also be used as a 16k Games ROM Cartridge after you have repaired your Spectrum.

 
This item will be posted the next working day.
All items are shipped in anti-static packing.
Delivery times are stated in the postage and payment tab and will be posted with tracking.
 
Delivery times are estimated due to current world circumstances.
 
 
Please check out my other items
Please ask any Questions

1x ZX Spectrum 16k 48k 128 +2 Diagnostic Test Cartridge REV:E