Re: Tech: C-board problems with Magic Sword (Capcom CPS1)

The CPS-B chips just sometimes go bad. I don't think Magic Sword has any
more problems than other CPS-1 games. Your only choices for repair are
to obtain a replacement CPS-B-13 c-board or, if you're feeling up to a
challenge, patch the game's program code to use a more common c-board.

Tim

In <twYif.184$0x5.103@xxxxxxxxxxxxx> Arttu_Ylärakkola wrote:
> Hi!
>
> Couple of weeks ago I pulled out my Magic Sword (Capcom CPS1) game
> from the storage and found out that the gameplay, sounds and controls
> work perfectly but the colors are incorrect. It used to work just
> fine and was stored carefully.
>
> First, I swapped the A-board from Carrier Airwing that worked
> perfectly. No change, so the problem must be with the B-board. Then I
> replaced all the socketed chips and C-board, and again - no change.
> So the problem was not with the B-board itself, but the chips or the
> C-board.
>
> At first I thought it was one of the big eproms (40 pins, so I could
> not read or program them).
>
> What I did was that I acquired another Magic Sword PCB that had a
> similar problem (but with a bit less color "distortion"). I changed
> all the eproms, but that didn't help.
>
> Finally I found out that the problem was with the C-board. I can "move
> the problems" between Magic Sword PCBs by swapping the C-board.
>
> So finally we get to the point:
>
> Unlike some CPS1 games like Three Wonders, Magic Sword C-board does
> not have a suicide battery. The C-board contains one CPU with the
> text:
>
> CAPCOM
> C.P.S.-B-13
> DL-0411-10008
> 5C58 OED 40
> JAPAN
>
> Lately there's been more than one Magic Sword pcb auctioned on ebay
> that has the exact same problems (=incorrect colors, otherwise just
> fine) and my guess is that they have broken C-boards, just like my
> PCBs.
>
> There is no visible damage on either of my Magic Sword C-board so my
> questions are:
>
> 1. Anyone else had problems with "suicide-batteryless" CPS1 C-board
> dying? 2. What could be done to remedy the situation? 3. I've owned
> around 400 pcbs and never had a problem with static eletricity -
> could the C-board CPUs be super-extra sensitive?
>
>
> If anyone has Magic Sword for sale, I'm open for offers :)
>
.

Relevant Pages

  • Re: C-board problems with Magic Sword (Capcom CPS1)
    ... > not with the B-board itself, but the chips or the C-board. ... > What I did was that I acquired another Magic Sword PCB that had a similar ... > eproms, but that didn't help. ...
    (rec.games.video.arcade.collecting)
  • Re: C-board problems with Magic Sword (Capcom CPS1)
    ... > not with the B-board itself, but the chips or the C-board. ... > What I did was that I acquired another Magic Sword PCB that had a similar ... > eproms, but that didn't help. ...
    (rec.games.video.arcade.collecting)