Stoog
Member
Hey all
Hope Caius chimes in
Doing a repair to a Serect Agent (Sly Spy) which hopefully someone can help me
Basiclly the cpu is stuck all address lines data lines no activity reset pin has vaild reset clock correct freq
I have gone over this PCB checked boot ram roms all good buffers all good and connections between cpu ram roms and buffers but still yet to find whats causing it not to run
The only thing left is the CPU and these 3 PALs near the first 2 boot roms seems the WR and a few other inportant pins run into these
i may have either a faulty one or all 3 faulty and i would like to replace these to rule that out but i am not 100% sure if the ones dumped in the mame set are correct and are vaild dumps
Im yet to find a faulty 68k cpu but anything is possible
Can anyone help?
Hope Caius chimes in
Doing a repair to a Serect Agent (Sly Spy) which hopefully someone can help me
Basiclly the cpu is stuck all address lines data lines no activity reset pin has vaild reset clock correct freq
I have gone over this PCB checked boot ram roms all good buffers all good and connections between cpu ram roms and buffers but still yet to find whats causing it not to run
The only thing left is the CPU and these 3 PALs near the first 2 boot roms seems the WR and a few other inportant pins run into these
i may have either a faulty one or all 3 faulty and i would like to replace these to rule that out but i am not 100% sure if the ones dumped in the mame set are correct and are vaild dumps
Im yet to find a faulty 68k cpu but anything is possible
Can anyone help?
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