Fairly common for the large caps on the board to get knocked off entirely, or just one leg of them, taking out that portion of the sounds. Look at those first and make sure they're all present, also see if one leg of them is broken loose and reattach if so.
As for fixing deflection boards...
I clean the outsides with Mean Green and 0000 steel wool. For the insides with bare wood, I use an orbital sander with my Shop Vac attached to the dust port.
By vacuum sanding the inside, you'll brighten the wood while removing the funk. Sometimes liquid cleaners will just soak the funk into...
It is plug and play, no wiring or soldering. The 96 in 1 also remaps your controls if you need a fire button for a title, it uses the Player 1 button. There are also button + joystick combos to pause the game, or access the game selection menu.
Here's a link to my project blog, each article...
I've used the red optic boards for years with the 60 in 1 JAMMA boards, they work fine for that application. I honestly haven't run them in a dedicated Centipede, since I always had vintage spares when needed.
I had to do the same thing on our machine, IIRC there were a couple of bridges that had issues.
If you haven't already, replacing the belts and cleaning off the old grease will make it play much better. There is often gummy grease in the telescoping horizontal tube that hurts gameplay, I...
It sounds like they're referring to either the Sync Bus Controller or VRAM Addresser, both of which are small boards mounted on socket extensions and usually zip tied for stability. The sockets used on the main boards were a poor design, so you often see socket issues where wiggling either of...
I have 4 of these in the dedicated cabinets, non-working if anyone is looking for one or more, I'd make you a sweet deal.
Located just outside of Kansas City, in my warehouse, level ground.
With any old juke mech that hasn't been maintained, the lubrication is going to be gummy or hardened to asphalt. Just adding oil on top of that isn't going to fix it.
There is a shortcut, before I post it I have to add this caveat; the proper thing to do is disassemble the entire mech and...
How flexible is your tone arm wire? I've had jukes where the wire hardens with age and when the tonearm is fully released, it moves to the wrong position because the hardened wire is acting like a spring.
Almost all jukes align the tonearm mechanically for the initial position, but it is fully...