Reaching out for some troubleshooting assistance with my newly acquired Gottlieb Caveman pinball machine. This game was operational, with some small sound issues, and the seller recorded a video of the game in action. However, after performing bulletproofing and recommended ground modifications, the game will not boot up and play. Before going any further, the following were performed:
• All solid state boards are original style (no upgraded aftermarket boards).
• Installed a new coil cell battery board, with blocking diode, onto the MPU board.
• Recommended ground modifications were installed to all boards.
• Original orange capacitors were replaced with 12,000 mfd @ 25V radial snap capacitors (from Marco’s Specialties).
• All single side connectors were repinned, including the A23-J2 connector at the I / O board.
• Installed the updated Caveman Evolutions eeprom (designed by Davroux Brothers).
• All fuses checked and good.
When the pinball was first energized, the displays all illuminated, but most of the playfield lights ( not all ) locked on
and there is NO attract mode. The test mode cannot be activated nor can any credits be added. All the while the video is in GERMAN attract mode. All the tilt (pendulum/ ball roll / playfield side to side all normally open) and the slam switch (normally closed) were in correct position. After being powered up and performing various tests, now the displays DO NOT illuminate and different lighting stays locked on, and still CANNOT get a game started. I even tried swapping out a working Swemmer MPU board, but the results were the same (with no changes), so the problem lies in the game.
I scoured and searched the internet and YouTube for information and answers, but only found a little information. Can anyone provide any insight, or point me in the right direction as to where to start troubleshooting this game? I really do not know where to start. Thanks for your help.