(Topic ID: 303162)

Gottlieb System 80b issues a.k.a. I got a Raven kickin' my butt....

By TheDarkKnight68

2 years ago



Topic Stats

  • 2 posts
  • 2 Pinsiders participating
  • Latest reply 1 year ago by Donman
  • No one calls this topic a favorite

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#1 2 years ago

Hey folks, getting my butt kicked by a Raven at the moment. I've had the machine for a while, was bought as a project. Boards were a mess, so several years ago, I just bought a new Swemmer Control board and Driver board. Auxiliary Power supply is new. After some work, I had the machine playing excellent with no issues, then life happened and I was unable to do much pinball stuff for several years. Raven sat in the garage, which doesn't get very cold as it is climate controlled, but certainly subject to dirt, dust, bugs etc. About a month ago, I brought it inside, powered it up, and it worked perfectly(booted, displays came on displaying proper stuff, attract mode, sound etc etc), but then it "died" after 45 seconds or so. Displays went out, only had a few GI lights cycling, but otherwise dead. Now its being real weird. I decided to replace the power supply, as one of the +5 volt connectors (J2) had some browning (also crimped new connectors for j1 and j2). I got one of those Gulf Stream power supplys (these things have no potentiometer, so not adjustable), but the game stays in almost dead mode, even though showing 5.4 volts being generated, "dead" just like described above with this one in. So on the original power supply, I reflowed the headers, squirted some contact cleaner in the pot and put it back in. Now, if I slowly turn up the pot on the power supply, I can get the game to mostly boot up, pretty much in attract mode- all lights light and cycle, helicopter starts spinning at proper time etc etc. Still no displays, and if I hit "start" a game, it resets back to attract mode. All the "dummy lights" on the Swemmer control board and driver board light up- +5 volts, logic etc etc. Oddly, if I disconnect J2 from the power supply, I do get random digits/letters on the display. A couple times its been "fully lit", showing zeros all the way across, other times its an A and an 8- just random. But if I plug J2 back in on the power supply, I get nada. I also believe I have some sound issue- sound board is original, but led not lighting. If I hit SW 1, the led lights very dimly and I get static. If I hit SW 2, nada- no tone, no nothing. Thats a pretty good start to "describing" whats going on. I've never been excellent at boardwork, testing components/board troubleshooting, but am "decent", Ive just forgotten a ton. Definitely still learning stuff, so I'm kinda fighting lack of knowledge, but also "fuzzy/forgot" a lot that I learned a few years ago. Anyway, this beotch is kicking my butt. Seems so weird that it was working excellent and a few years in storage killed it (but after booting up first as a tease). Sorry I bounced around a lot, but was just trying to get as much described as possible. Anyway, any insight appreciated!

9 months later
#2 1 year ago
Quoted from TheDarkKnight68:

Hey folks, getting my butt kicked by a Raven at the moment. I've had the machine for a while, was bought as a project. Boards were a mess, so several years ago, I just bought a new Swemmer Control board and Driver board. Auxiliary Power supply is new. After some work, I had the machine playing excellent with no issues, then life happened and I was unable to do much pinball stuff for several years. Raven sat in the garage, which doesn't get very cold as it is climate controlled, but certainly subject to dirt, dust, bugs etc. About a month ago, I brought it inside, powered it up, and it worked perfectly(booted, displays came on displaying proper stuff, attract mode, sound etc etc), but then it "died" after 45 seconds or so. Displays went out, only had a few GI lights cycling, but otherwise dead. Now its being real weird. I decided to replace the power supply, as one of the +5 volt connectors (J2) had some browning (also crimped new connectors for j1 and j2). I got one of those Gulf Stream power supplys (these things have no potentiometer, so not adjustable), but the game stays in almost dead mode, even though showing 5.4 volts being generated, "dead" just like described above with this one in. So on the original power supply, I reflowed the headers, squirted some contact cleaner in the pot and put it back in. Now, if I slowly turn up the pot on the power supply, I can get the game to mostly boot up, pretty much in attract mode- all lights light and cycle, helicopter starts spinning at proper time etc etc. Still no displays, and if I hit "start" a game, it resets back to attract mode. All the "dummy lights" on the Swemmer control board and driver board light up- +5 volts, logic etc etc. Oddly, if I disconnect J2 from the power supply, I do get random digits/letters on the display. A couple times its been "fully lit", showing zeros all the way across, other times its an A and an 8- just random. But if I plug J2 back in on the power supply, I get nada. I also believe I have some sound issue- sound board is original, but led not lighting. If I hit SW 1, the led lights very dimly and I get static. If I hit SW 2, nada- no tone, no nothing. Thats a pretty good start to "describing" whats going on. I've never been excellent at boardwork, testing components/board troubleshooting, but am "decent", Ive just forgotten a ton. Definitely still learning stuff, so I'm kinda fighting lack of knowledge, but also "fuzzy/forgot" a lot that I learned a few years ago. Anyway, this beotch is kicking my butt. Seems so weird that it was working excellent and a few years in storage killed it (but after booting up first as a tease). Sorry I bounced around a lot, but was just trying to get as much described as possible. Anyway, any insight appreciated!

Hi did you do the ground mod?
Also check the 5 volt logic, if its like 1.5 volt. try disconnect pop bumpers PCB one at a time. I made a logical LED.

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