I have a SF II: Hyper Fighting CPS board that doesn't have working sound. I'm trying to repair it, but even if I don't get it working properly I can still play it. But I need a bare minimum set up because there's a chance the volume could just be muted or something. Is this everything I need? http://www.jammaboards.com/store/jamma-full-cabinet-wiring-harness-loom-jamma-h1.html http://www.jammaboards.com/store/12a-arcade-switching-power-supply-w-24vdc-md-9916a-24v.html http://www.jammaboards.com/store/cga-ega-yuv-to-vga-arcade-hd-converter-pcb-gbs-8220-gbs-8220.html http://www.ebay.com/itm/NEW-Arcade-...880?pt=LH_DefaultDomain_0&hash=item3a84d9de38 Manual: https://www.mikesarcade.com/arcade/manuals.html Street Fighter II 1.04 Meg
Normally the capcom games don't have sound in demo mode, that can be turned on in the dip switches, but if the game don't have sound when playing that is another problem. I don't remember well the pcb, does it have a volume knob or a sound board? Maybe is that.
The white screw looking thing in the bottom left corner is your volume pot. Make sure it isn't all the way turned to one end or the other. From what I've heard when you have no sound on CPS1 board's it's usually the amp fried or sometimes the Z80 cpu. But it could be plenty of problems. Be careful with power supplies that have adjustable 5V power. Use a meter before hooking up any board to it.
It's on the main board/motherboard which holds all the CPS1 hardware, which is the bottom board. Sometimes it's called the A board. The B and C boards are the pcbs that go on top. The B plugs into the A board and the C is a much smaller board plugged into the corner of the B board. The Z80 is located I think to the right of the volume pot relative to your picture. But you won't see it without removing the B board. If you have the right tool it might be possible to test if the Z80 is at fault. It could also be that amplifier chip, which should have a heatsink attached to it. It's also a standard part and can be replaced if it's your problem. The bad thing is there are alot of reasons for possible problems you can have so there is no guarantee one suggestion is going to be your problem. Be careful if you try to repair anything because you can actually make things worse and unrecoverable if you make a mistake.
You just evenly pry up on both sides. I don't believe anything actually holds them together other than the tight connectors. I'm fairly sure as I have another board with the same sort of connectors and they just need to be evenly pulled up. But sure not to bend any pins or end up scratching anything. And your usual static precautions.
could be the z80, but then again it could be the amps, but the yamaha sound chips can also fail as can the capacitors. The Fun of arcade hardware
Caps. Z80, sound chips... broken traces or some conductive stuff making short circuit or "resistor". Start with analog (amp) parts, then Z80, then Yamaha chips and check for broken traces, corrosion, foreign stuff between chip legs etc. I had System 246 board that didn't boot because of juice drop.
