Playboy 35th..... probably down to one issue left.......
Almost done with this Playboy 35th project game. So much work has been done finding missing parts, rebuilt flippers, cleaned and adjusted switches and connectors, new lights, new rubbers, new balls, new power supply, new ppb board, new display, new game roms, reflowed solder on all old board connectors and lamp boards under play field, converted from Europe to US power, added NVram, and more.... down to a couple things left.
-missing lamp board for "pinball" lights between back box speakers (board being made for this to be tested in a few weeks)
-8 amp fuse blows for solenoid bridge rectifier in back box after about 10 games are played (probably time for the upgrade inkognito board on that one)
-terrible sounds: the game plays "playboy" voice at power up correctly but nothing else is correct after that. Everything else is static noises after that in game and in sound test when sounds/voice should be played. I swapped board with my Monday Night Football and issue follows playboy roms, so new sound roms are on the way
The only issue I don't think I have figured out already is the 3 stand up target bank in the middle of the play field. With a hard direct hit, those 3 targets will almost never register a hit. If it's a soft hit with the ball, or just pushing it with my fingers it will register every time. I've gone through switch test mode and they all test good with a hand touch or light ball hit, but they still almost never register a hard hit.
All the switches have been cleaned with rubbing alcohol/q-tip, adjusted for proper spacing and make great wiping motion contact, all diodes are present and in the correct direction, and I'm pretty sure there isn't supposed to be a capacitor or resistor on those stand ups since there aren't on any of the other stand ups in the game. I know in older games the caps can go bad on stand up switches for the "delay" for a hard fast hit so the game still recognizes the hit, but I don't think this one should have those.
Any suggestions on getting those 3 stand up targets to register ALL hits soft AND hard? I would think if one of those diodes was bad there would be a row/column issue going on, but all other switches work great in game and test mode.