(Topic ID: 73213)

Home for the Gottlieb SYS1-SYS80B guys, Yep it's a club :)

By Gerry

6 years ago

Topic Stats

  • 3,361 posts
  • 427 Pinsiders participating
  • Latest reply 20 hours ago by northvibe
  • Topic is favorited by 221 Pinsiders


Linked Games

Topic Gallery

There have been 1,061 images uploaded to this topic. (View topic image gallery).

20200125_144414 (resized).jpg
20200102_112404 (resized).jpg
IMG_20200123_063358 (resized).jpg
IMG_20190113_160630 (resized).jpg
20200117_073545 (resized).jpg
20200111_142007 (resized).jpg
20200109_210547 (resized).jpg
20200109_152837 (resized).jpg
20191222_190724 (resized).jpg
20200105_144329 (resized).jpg
20200105_144419 (resized).jpg
20200105_144327 (resized).jpg
20200105_144332 (resized).jpg
20200105_100519 (resized).jpg
20200101_125716 (resized).jpg
Page_23-24-25 (resized).jpg

You're currently viewing posts by Pinsider cadmium.
Click here to go back to viewing the entire thread.

#2932 9 months ago

Howdy! I've recently purchased a Genesis in need of work. I have done the ground mods and have the machine almost working fully. However, I am stuck on an issue with the alphanumeric display. As you can see from the pictures only a few segments light and some are very faint. The broken display segments are frozen and never change.

I put a display from my Bounty Hunter in Genesis and it works fine. I've replaced the two 7147 IC hex buffer chips on the board but that had no change. Any suggestions on where to troubleshoot next? Thanks.

IMG_5900 (resized).JPGIMG_5901 (resized).JPG

#2940 9 months ago
Quoted from gdonovan:

The two "939" Rockwell chips drive the two displays and is what I would suspect if everything else looks good. Frankly for the cost of the two chips you could pickup a good used display and be done with it. Just make sure the voltages are good on the board though, odds of both chips acting up are slim in my opinion but possible. I just got my Gold Wings display working correct and I'm picking up a spare for good measure, let me know if there is any readings I can do for you.
FYI looking at your pictures it caught my eye the cap has been replaced, is it the correct value? Looks far smaller than the original.

Thanks for responding so quickly. The cap isn't original but its 470uF compared to the 10uF in the schematic. It's had some obvious work done. Hopefully I'll get lucky soon or be able to source one.

Promoted items from the Pinside Marketplace
Machine - Wanted
San Francisco, CA
Sale Pending!
Riverside, CA
Machine - For Trade
Oxford, PA
From: $ 18.00
Apparel - Men
Pinside Shop
$ 999.00
Flipper Parts
$ 289.00
From: $ 22.95
Cabinet - Shooter Rods
Super Skill Shot Shop

You're currently viewing posts by Pinsider cadmium.
Click here to go back to viewing the entire thread.

Hey there! Got a moment?

Great to see you're enjoying Pinside! Did you know Pinside is able to run thanks to donations from our visitors? Please donate to Pinside, support the site and get anext to your username to show for it! Donate to Pinside