An unlucky purchase

Fixed a PCB? Tell us how!
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Asayuki
Posts: 405
Joined: August 29th, 2015, 10:16 pm
Location: Remuria, Germany

An unlucky purchase

Postby Asayuki » August 6th, 2016, 2:45 pm

Hi,
I have added a new repair to the wiki. It's a Ghosts 'n' Goblins board which I bought recently.
The evil spirits residing in the EPROMs of this board as pixels came out and hunted me during the entire repair process. :-o This is probably one of the most unlucky repairs I ever did, :( made worse by my stubborn wanting to take lightly something that wasn't easy per se. :shifty:
I think you will have some fun reading it; and, as usual, the log contains technical info that I hope will be useful to the community. ;)

Questions, comments, constructive criticism are welcome. :awe:

http://wiki.arcadeotaku.com/w/Ghost%27n_Goblins_(Bootleg)_Repair_Logs

Cheers!

EDIT: Man, I DO HATE Arremers! :sick:
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Last edited by Asayuki on August 19th, 2016, 3:21 am, edited 1 time in total.
My 15kHz cabinet Peplos will never power up, with any item, and I am quite proud of that.
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Brettster
Posts: 143
Joined: February 21st, 2015, 10:07 am
Location: Leeds, UK

Re: An unlucky purchase

Postby Brettster » August 7th, 2016, 12:08 am

wow that was an epic fix
Thoroughly enjoyed reading the log though
Looking for a nice Ridge Racer and Outrun Upright
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Asayuki
Posts: 405
Joined: August 29th, 2015, 10:16 pm
Location: Remuria, Germany

Re: An unlucky purchase

Postby Asayuki » August 19th, 2016, 3:16 am



There's an update to this repair, because the board developed another fault. ...a quite difficult one! :-o
I have also moved the repair to the top of the log for your convenience.

Asayuki wrote:Man, I DO HATE Arremers!
Image


I really really do! Is there anybody who knows an exorcist who is willing to visit my board? :eh: :lol:

Cheers!
My 15kHz cabinet Peplos will never power up, with any item, and I am quite proud of that.
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leonardoliveira
Posts: 479
Joined: August 30th, 2012, 5:53 am
Initials: leo
Location: Brazil

Re: An unlucky purchase

Postby leonardoliveira » September 6th, 2016, 7:21 pm

So Goldstar TTLs are to be treated as "possibly as bad as Fujitsu TTLs" regarding developing faults on internal bonding? :lol:
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Asayuki
Posts: 405
Joined: August 29th, 2015, 10:16 pm
Location: Remuria, Germany

Re: An unlucky purchase

Postby Asayuki » September 6th, 2016, 9:31 pm

leonardoliveira wrote:So Goldstar TTLs are to be treated as "possibly as bad as Fujitsu TTLs" regarding developing faults on internal bonding? :lol:


It's hard to base a thesis on one single faulty IC out of God knows how many millions produced, but you do have a point there. The final issue really looked like faulty bonding on that GSS latch.
My 15kHz cabinet Peplos will never power up, with any item, and I am quite proud of that.

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