I love my TZ but have been considering selling it for a Hobbit. However, after playing it I just feel like I can't sell it. The game just has so much going on it, is a blast to play, and is a beautiful pin.
(Topic ID: 63352)
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Twilight Zone
Bally, 1993
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9 months later
1 year later
So having a minor lighting issue on my TZ. In the lamp matrix below on row 6 lights 16, 26, 36, 46 are out, then light 56 works, 66 is out, 76 is out (or burnt bulb under mini playfield), and 86 works. Any ideas?
If it was a broken wire wouldn't all bulbs after #46 be out? It's odd that in this case some bulbs in the row work and some don't. I wonder if it could be a bad solder joint on the power driver board for that connector? The wires on the connector itself look good. I did swap the connector plug from J137 to J138 for testing purposes (J138 was empty but has same pin layout as J137) and the same issue exists.
Thank you
Quoted from Coyote:Okay, here's a little troubleshooting help for everyone. All games are like this, and this goes for lamp row/colun wires, switch row/column wires, and the power feed to flashers and coils:
They are not wired up in order as listed in the manual. They are wired up in the order that the wiring harness gets to them first. So in this casethe ones that are out are: All lights on the door panels, a spiral light, the right outlane, mini-PF, Gumball lamp.
So if you follow the wire harness, it comes in the bottom (back) of the right side of the playfield. The ramp connections are right here (for the Gumball lamp). There is a run goes across the bottom (PF in up position, back when down), and this feeds the other working lamp, The Power insert.
The main harness then travels up (towards front of the game). This is where the right outlane, the spiral, and then the door panel board is fed. Then, very last in the string are the plugs to the Powerfield.
So, having now followed the trace of the wire harness over the lamps, you have a broken Red/Blue wire somewhere inclusive between (meaning, including) the 'The Power' insert, and the 'Special' right outlane insert.
Good luck.
Thank you for the advice! This is very helpful. I'll start trying to find the broken wire tonight.
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