Apple IIe STK Asic Clone (Orange) Repair
Apple IIe STK Asic Clone (Maybe Orange) repair.
Defect:
- Short-circuit on all voltages.
- Black/Garbage screen.
Replaced parts:
- 10 x Tantalum Capacitor 4.7uf (replaced with Electrolytic Capacitors)
- 3 x RAM OKI M3764A-15 in Short-circuit.
- 1 x ROM 1 (EPROM 27128)
Note:
I have to thank immensely my friend Alessandro Polito for providing me the dump of the ROM 1 of the Orange (Apple IIe Asic Clone)
Download:
Categories: Apple clone, Gallery, Projects / Repairs, Retro Computers and other stuff..., Today, Various
I have this exact clone and it seems I have the same symptoms:
- No sync (blank screen)
- No beep on startup
- No disk spin
- Power supply seems ok
Sounds like I need to replace the caps.
The rom package is broken, the main ROM is full of FD, you may read the broken rom and not put the correct one from your friend Alessandro. Greetings from Brazil!
@Alexandre Souza, PU2SEX
Thanks Alexandre, it was an oversight and i never noticed. Added a new archive with only the ROM-1.