Arcade Collecting > Pinball
Williams Firepower
pbj:
Symptom - lower left segment missing from players 1 & 2 and ball/credit displays.
So that means the problem isn't display glass, took a look at the board, and we've got a crispy resistor.
Replaced it with a half watt flame proof...
And.... There....we.... Go.
pbj:
3.5 years later, same segment went dead again and took its friend top segment with it.
Replaced the resistor again and that segment was resolved.
Top segment was a little weird, resistor looked and tested okay. Reflow of everything did nothing.
I looked at the schematics and saw there are two chips that player 1, 2, and ball/credit have in common. I looked over a data sheet and noticed this game only uses 6 lines of the 7 segment driver. (No commas) so I jumped the dead input and output to the respective unused pins.
Replaced the resistor because why not.
Lasted about five hours before an entire digit on player 2 and 4 disappeared. :lol
More drama, next post.
jennifer:
:)
pbj:
It’s one of my favorites, and I’m horrible at it. This was a rescue out of a puddle of mud in San Antonio over a decade ago. I got tired of chasing gremlins on the mpu and driver board and bought replacements from pinballpcb. I’m not entirely happy with what I received or how I’ve been treated post sale, but the boards do work.
That backglass is missing most of the colored ink, so what you’re seeing is a bunch of colored transparencies glued to the back. Cabinet was missing 90% of the black so I rattle canned it back. This is a polished turd. I’m probably in for $1,500 at this point and I’ll never get it back out of it.
Anyway, a reflow on the strobe pins in question and cleaning the edge connector got my missing digit back.
:cheers:
jennifer:
:)
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