I am restoring a Fireball Classic - 4 player digital. After I made the wire connections to the circuit boards, I noticed that there does not seem to be a connector for the pins on the top part of the MPU board. The lights on the table go on, but the digital lights do not - they did several years ago. Would appreciate your assistance,

Thanks

7300888E-FF93-4141-9947-847D7D35FB34 (resized).jpeg

Wow, thanks for the quick response. The only thing that lights up are the bulbs on the playfield. The scoring LEDs do not. MPU does not seem to boot up... no led on the MPU lights up. Is the MPU worth fooling with, or should I just buy a new one.

Thanks again. I found a blown fuse by the power supply. I’ll try that next.

Howard

Unfortunately, after replace the fuse and checking the others, I still am not getting power to the MPU. Any other suggestions?

Thanks.

41F86281-49F6-4804-9E6A-3B46C9EB5743 (resized).jpeg

63F9F40B-4F6A-4F25-B574-FAEE9583AB63 (resized).jpeg

Ok, I found the F3 fuse was blown. I replace the first time and it blew, but I replaced again and now the game boots up. I’ll take it to the next level, but I’m sure I’ll be back with more questions.

Thanks for the help, everyone!

Howie B

Ive got the MPU testing OK and then run through the self testing and fixed a couple of items.

During the contact test, it is showing contact #19 stuck. The documents show there are 2 #19 contacts on the playfield. I examined both and they look perfectly fine. Contacts not touching, wiring and electronics look fine.

See photo - I have a piece of blue tape on the 2 contacts.

Any suggestions?

DF492EC6-6047-40B0-933A-71EAAE822A5B (resized).jpeg

Again thanks that worked! I got through all the self tests fine.
Game basically plays correctly so far.

Next question... The Digital displays test ok during the self diagnosis - cycle 0-9 on all the displays. However, they do not work during game play... do not keep the score as you play - seem to be random. When I turn the game on it looks like the high score is flashing on the 4 player’s displays but “24” and “44” displays in the credits and ball in play window, not sure what that means (See photo).

Any thoughts?

5A32C8C0-3BD8-4614-9F2E-81ABD5FCF376 (resized).jpeg

During the diagnostics, the displays properly go from 0-9.
When I turn the machine on it displays as in the photo. I’m not sure what the 24 and 44 mean (credits?)
But when I start the game, the displays don’t seem to make any sense.

It looks like the playfield works during the game. Even the 3-balls (game can capture and release up-tp 3 balls during play) functions correctly.

FYI... I have all the original manuals.

Skidave. That did the trick! Removed battery and hit the reset on the MPU. Scoring during the game. seem to be working.

Thanks.

Game was playing fine. New issue, just started. The game start button will not start a new game. The contact is good, the diagnostics recognizes switch 6 (game start) is engaged when I press it during the switch test.

Seems weird that it just stopped working. Any thoughts?

Yup, I can add credits with quarters. Slot works and the credit counter goes up.

... of course that worked!

Thanks.