JAMMArcade.net – Page 258

Nintendo Super System

General Comments Off

Feb 242011

I have got hold of a very nice Nintendo Super System. This was the arcade equivalent of the Super Nintendo. The board is in very good condition but was sold on eBay as “untested” which usually means it doesn’t work.

The board came with 3 games, Super Mario World, Super Soccer and Super Tennis. From what I can tell all these games are the same as the SNES versions with the addition of the game timer.

It came today and I fired it up, it uses a standard JAMMA pinout with a couple of extra things and stereo sound instead of mono.
Much to my surprise the board boots up and everything plays fine.

Its an interesting piece of hardware but not sure why it was ever made as it was released around the same time as the SNES was.

CP System 1.5 (Dash) – Cadillacs and Dinosaurs

General Comments Off

Feb 162011

Got my first CPS Dash game today.
Its Cadillacs and Dinosaurs and has been modded so as not to suicide.

It looked like a conversion as the label is not the proper one and there is a genuine Slam Masters sticker underneath it (which I have removed and scanned) but inside all of the MASKROMs are genuine Capcom Cadillacs ones so looks like the case might be a donor.

The CPS Dash games are middle ground from the CPS1 and CPS2 boards. They have a case, it has a built in fan, Q-Sound is used and there is separate line out audio.
The boards are similar to that of CPS1 but the A board has been stripped of its audio section and this is now located on a new B board which has the Q-Sound chips and in this case, a suicide battery that when it dies it takes the sounds with it.

The C board on this is what has all the game ROM’s on it and the small D board is what is the C board on the CPS1 games. This D board also had a suicide battery on it. Phew!

No suicide mod

CPS2 volume fix

PCB Repair Logs, Repair Logs Comments Off

Feb 122011

I have been looking for a fault on a CPS2 A board today. There was no volume coming out to the JAMMA connector but there was from the line out connectors (Stereo Q sound).
I couldn’t really find anything wrong as I had proved the on board amp was working.

I entered the test menu and it reported the volume was up full so I started to turn it down, when I got half way down the volume bar disappeared and the volume reported being set at 0. When I started to turn the volume up again the sound was back and it works perfectly.

Not sure what this was all about but its certainly something to keep in mind before I start poking around with a similar fault again.

CPS2 A board repair log

PCB Repair Logs, Repair Logs Comments Off

Feb 052011

Very small repair.
I have finished making up plugs for various kick harnesses which makes it nice and easy to swap out games. I started playing my Street Fighter Zero 2 game and the sound was far too loud, when I tried to enter the test mode I found that none of the buttons on the A board worked.
I opened the case and found that the buttons had seen better days.
The buttons are normal SMD push buttons. The Capcom ones have a fifth leg which is just grounding the case of the push button and the ones I have as replacement one have 3 but since the buttons are activated via plastic switches I’m not too bothered.
Id already replaced the TEST button when I took this picture.

Changed all 3 and tested the board. The volume can now be set to a normal level.

Bubble Bobble PCB

General Comments Off

Feb 022011

Got a bootleg version of Bubble Bobble (Bobble Bobble) today. All is fine but the Red and Green signals were switched around. Its not a massive problem at all and anything is possible with all the different bootleg boards that were produced for this game.
As it is all working now I wont look into this but its worth mentioning.

Here is the pinout for this 56pin bootleg version. The same as the one floating on the net but with Red and Green switched

Older Entries Newer Entries