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 Post subject: Arcade PCB repair?
PostPosted: Tue Feb 11, 2020 11:26 pm 


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Joined: 27 Oct 2007
Posts: 910
Location: Colorado Springs
I use to go through Raymond at arcadecomponents but haven't been able to get a hold of him, so I was wondering if anyone could recommend a solid, reputable repair guy stateside.
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 Post subject: Re: Arcade PCB repair?
PostPosted: Thu Feb 13, 2020 12:21 am 



Joined: 22 Jun 2005
Posts: 258
Location: Communism's New Home (CA, USA)
Ken at irepairsega. Very solid guy.
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 Post subject: Re: Arcade PCB repair?
PostPosted: Thu Feb 13, 2020 1:39 am 



Joined: 16 Nov 2013
Posts: 329
Location: Tokyo, Japan
Caius is your man.
https://caiusarcade.blogspot.com/


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 Post subject: Re: Arcade PCB repair?
PostPosted: Thu Feb 13, 2020 3:10 am 


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Joined: 27 Oct 2007
Posts: 910
Location: Colorado Springs
Thanks both of you guys!
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 Post subject: Re: Arcade PCB repair?
PostPosted: Thu Feb 13, 2020 3:23 am 



Joined: 20 Apr 2018
Posts: 181
Location: St Louis, IL, USA
Caius is awesome, but not in the US, nor does he do repair work anymore (I believe).

Ken is awesome, but you will be paying a bunch.

I know some guys, but before I recommend, you need to tell us what type of PCB (80's, 90s, JAMMA, Vector, Shooter, Neo Geo, etc) b/c that affects who I would recommend as well. Not everyone is great at all types of boards.

For example, for Neo Geo, I would without a doubt say James at Jamma Nation X (in Hawaii), but I wouldn't send James a Cave PCB, unless I just wanted play a few rounds with him... :P

-X


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 Post subject: Re: Arcade PCB repair?
PostPosted: Thu Feb 13, 2020 3:45 am 


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Joined: 27 Oct 2007
Posts: 910
Location: Colorado Springs
Cool - here are the three I need to have work done to:
1) Raiden - graphical glitch on left side of screen
2) Sega ST-V (US bios) - doesn't read carts. Mobo boots up and passes all tests. When it goes to read the cart, nothing happens.
3) Sega ST-V (JP bios) - fires up only to black screen. One of the chips on the board get hot really fast, so I have not gone too deep into troubleshooting this one.
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 Post subject: Re: Arcade PCB repair?
PostPosted: Thu Feb 13, 2020 4:38 pm 


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Joined: 04 May 2016
Posts: 91
Location: BC, Canada
Not to be a Debbie downer, but it probably doesn’t make financial sense to try to repair those boards. You’ll end up spending easily more than they’re worth ($100-$125 For raiden, $75-$100 For ST-V roughly speaking).

I’m all for repairing games and keeping them alive as long as possible. Maybe use this as an opportunity to work on your own repair skills?


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 Post subject: Re: Arcade PCB repair?
PostPosted: Thu Feb 13, 2020 5:30 pm 


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Joined: 27 Oct 2007
Posts: 910
Location: Colorado Springs
I’d rather get them repaired and know I have something that has been gone over and recapped and fixed than to buy another board and wait for them to also need repairs. Financial sense would lead me to just use MAME and eschew collecting boards all together. ;) I don’t mind the cost, I just need someone who can do the work well.
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 Post subject: Re: Arcade PCB repair?
PostPosted: Thu Feb 13, 2020 6:27 pm 


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Joined: 08 Jan 2016
Posts: 601
Location: Mountain View, CA
Graphical glitch is a bit vague, but a picture is worth a thousand words. It might be possible to do a simple diagnosis by looking at a pic.
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 Post subject: Re: Arcade PCB repair?
PostPosted: Thu Feb 13, 2020 9:24 pm 


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Joined: 27 Oct 2007
Posts: 910
Location: Colorado Springs
https://drive.google.com/open?id=1GScqb ... SE_UXKtvMU

It's on the left and it's a super dark shadow. It's hard to show and this is probably not the best pic, but it should give you an idea. I should also mention the game plays fine, it's just this shadow on the left. I am assuming this is some sort of rom corruption. Also, I do have -5v going to the board.
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 Post subject: Re: Arcade PCB repair?
PostPosted: Thu Feb 13, 2020 9:48 pm 


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Joined: 08 Jan 2016
Posts: 601
Location: Mountain View, CA
That's an interesting one. My guess is that there's a bit is used to indicate a "shadow" color in the sprite buffer. Is there supposed to be a shadow underneath the main ship? If there is, maybe its absence could be related.

If that shadow wobbles a bit, then that gives credence to it having a magic transparent bit, and that might be floating. This is all just theory, though.
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 Post subject: Re: Arcade PCB repair?
PostPosted: Fri Feb 14, 2020 9:07 pm 



Joined: 30 Oct 2017
Posts: 10
The ship, missiles, and gun sprites all appear to have wrong colors too, so that might be related to the shadow problem.


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