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gregjode's Achievements


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  1. Hi everyone, looking to tap into the knowledge of those more experienced in pinball repairs than I (which, lets face it is pretty much all of you). I have a sound issue with my Addams. No sound at all to be precise. And the machine seems to take longer booting up than it used to. It happened all of a sudden, one day fine, next day nothing. The speakers made some strange rhythmic noises for about 2 minutes but that's all. Now I here just a muted, scratchy whine at start up and nothing else. I've tried reseating all the cables with no luck. So I'm thinking it's the sound board. But I'm not really experienced enough to confirm or deny. I have access to a Dr Who and a Twilight. I see the sound board part numbers are different, but can I swap my addams sound board for one of these just to confirm my board is the problem? (i.e to hear the "bong" on start up). Cheers Jodie
  2. Hi everyone, I'm hoping someone can help me. Long time pinball player, short time pinball repairer. :) I need to replace some optos on a Twilight Zone and I'm unsure of where to buy them. The part numbers seem to be 5671-12731-00 and 5671-12732-00 for the transmitter and receiver. Some places have the part numbers as A-16908-E and A-16909-R But I can't find specific details on the parts to try and match them to different manufacturers. I can see that I can buy them from Pinball Spare Parts but he's only got a few in stock and I'd like to grab a bunch so I have spares. Has anyone successfully used optos from rs-online or jaycar or somewhere similar? Is anyone happy to share part numbers they've used? Side question - if the transmitter is faulty, should I also replace the receiver to ensure they match. Cheers Jodie
  3. Hi Everyone, I'm really hoping the collective Aussie Arcade Brain can help me diagnose a Twilight Problem. Opto 73 (right ramp) works correctly when the machine starts (by checking in the switch test) and when the game starts it's fine, but soon after a game starts or if the machine goes into attract mode, the opto goes weird and the right ramp diverter starts activating on and off. If I go into the switch test then, it shows the opto is closed or flickering. I've checked the power to the opto, if it's in its permanently closed state the transmitter it is showing 12V which to my mind means the opto transmitter has failed. But you turn the machine off and on again and it's showing 1.4V and is fine. Opto 83 (Left Magnet) is also doing this but not as often. The fact that 2 of them are doing it, and they haven't permanently failed makes me suspicious that it's not just failing optos that are the cause. I've taken both optos out and cleaned them, resoldered wiring, they seem fine. Any suggestions??? One more weird thing, I am reading voltages on most metal parts of the playfield. I'm reading 6Vdc on the Right Ramp and the metal near the Left Magnet, 10V+ on the Lamp stand above the mini playfield, and about 8V on the wire that guides balls back in to the gumball machine. I've read optos are fussy about voltages so maybe this is causing the issue and the optos are merely a symptom. Can someone who owns a Twilight please check some voltages for me, I don't want to start hunting for some weird short (needle - haystack) if these voltages are just normal noise. Any help would be appreciated.
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