Manheim, PA
Anyone selling their TZ in the Harrisburg/Lancaster PA area?
(Topic ID: 63352)
Linked Games
Twilight Zone
Bally, 1993
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11 months later
Finally became a TZ owner tonight. Still in the vehicle but should be getting it out tomorrow morning!
7B9BCC83-CF7A-41BE-8DE0-74E7E54F0410 (resized).jpegQuoted from Coyote:Just because you can see the LED does not mean the reciever can see LED. The IR LED is only half the story.
Assuming your switch test shows the opto as blocked, and you can see the IR LED glow, start lookin' at your receiver then.
I don’t have any optos in my switch test...
Quoted from tdddddd:This is single switch test showing switch 74
Post a pic like this if you can. [quoted image]
I do have the mini PF out at the moment checking those optos as well. It appears the following optos are bad: ball popper, mini pf entrance and exit, diverter and auto kicker
5037E430-7877-4971-BF05-1CBB142E43C3 (resized).jpegQuoted from tdddddd:Looks like you have no Optos showing closed in column 7. You can test the physical switches 77 and 78 to confirm that they are working.
Be careful reconnecting the mini playfield. Two connectors can be mistakenly swapped.
None of the optos are working that are J1 from the 10 opto board. I think that’s where my problem lies but without having another 10 board to test, I’m blindly buying one without knowing that’s the issue
1 week later
Quoted from Trooper11040:My first issue. Been playing it all week with no issues. Now I have this error “Ball Popper Opto is stuck”. No clue where to even start to diagnose this error...Opto on the ball popper appears to be glowing when I put my camera to it
[quoted image]
Problem was solved. Initially I replaced all 3 LM339s but that didn’t work. Replaced the 10 channel opto board with a new one from pinball life and all is well.
Quoted from Adipocere:I've been having this issue all of a sudden as well. I considered replacing the LM339s (they aren't socketed and I'm not proficient with board work), but I think I'm gonna do the same and buy a replacement board. Worked great for the acid damage I inherited on the main board.
Removing the soldered LM339s wasn’t awful but changing out the entire board was definitely the easiest method
If anyone has a broken gumball divider or is just missing it, I made one in fusion 360 using the original dimensions. I cut mine from plexi as I have a cnc but if you only have a 3D printer, you can print it...Here is the link:
https://www.thingiverse.com/thing:4831311
0D7CA5EA-0710-4E15-9F0D-FDC1739C2F18 (resized).jpegA5CB5C9C-8EDA-4572-A997-978EACA0AFE6 (resized).jpeg
1 year later
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