Author Topic: Zaccaria Scorpion pcbs  (Read 15284 times)

Belike

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Zaccaria Scorpion pcbs
« on: February 28, 2011, 04:24:02 PM »
I received 3 sets of Scorpion pcbs yesterday, unfortunately non workings.(1 complete mainboard not on the pic.)




I tested all of them and tried to swap the chips among the boards, but always the similar result


I placed the game roms into a Scramble mainboard, but still not working


Is there anybody who wants to give it a try to make at least one working from the 3?(3 working could be the best of course). ;D

Etienne MacGyver

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Re: Zaccaria Scorpion pcbs
« Reply #1 on: February 28, 2011, 04:28:10 PM »
Sounds to me a job for our famous Robin Holland  ;)

Robinholland

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Re: Zaccaria Scorpion pcbs
« Reply #2 on: February 28, 2011, 05:55:11 PM »
Sent me the 3 sets and i sent 1 or 2 working sets back( if possible , i see missing components) (the last set is for me)  ;D
What numbers have the missing chips ?
« Last Edit: February 28, 2011, 06:17:46 PM by Robinholland »

Belike

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Re: Zaccaria Scorpion pcbs
« Reply #3 on: February 28, 2011, 07:25:45 PM »
Sent me the 3 sets and i sent 1 or 2 working sets back( if possible , i see missing components) (the last set is for me)  ;D
What numbers have the missing chips ?
Deal! ;)
Missing chips:
1.(2 missing):Z8400AB1
                  Z80ACPU
                  88147
2.(1 missing):E1Z298-149
                  D8255AC-5
3.(1 missing):Z8400AB1
                  Z80ACPU
                  88151 on the other board in the same place it is 88147
I have tons of non-working and garbage pcbs, I will check them tomorrow, maybe I will find some replacement.

Prepare for my PM. ;) ;D
« Last Edit: February 28, 2011, 10:11:10 PM by Belike »

PaulSwan

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Re: Zaccaria Scorpion pcbs
« Reply #4 on: March 01, 2011, 05:26:58 AM »
Bela, did you try and adjust the sync pots on your monitor to see if you could sync the picture? Looks like there might be something there, just slightly off sync.
ZZZ

Belike

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Re: Zaccaria Scorpion pcbs
« Reply #5 on: March 01, 2011, 08:18:27 AM »
Bela, did you try and adjust the sync pots on your monitor to see if you could sync the picture? Looks like there might be something there, just slightly off sync.

Yes, I tried all adjusting possibilities on the monitor and rom swapping among the pcbs, but I was unable to get them work.
I tested the cab with an Amidar pcb then and it was fine.