Twilight Zone reset with new boards

Have you checked wall outlet voltage and what they game is wired for ?

For example if your wall outlet is around 100 and game wired for 120, this could be a problem.

LTG : )™

It seems that many people have problems with Rottendog in TZ.

My TZ has had that problem on two separate occasions. The first time it was a bad bridge rectifier...I don't remember the number, but it's well documented. I replaced it and the problem was gone for two years. The next time it was a bad capacitor, but it only reset if both flippers buttons were pressed within a few minutes of power on. A new cap fixed it. New boards don't necessarily mean good parts. Or what Lloyd said.

https://pinside.com/pinball/forum/topic/yet-another-tz-resetting-thread

https://pinside.com/pinball/forum/topic/help-power-driver-board-issue

https://pinside.com/pinball/forum/topic/tz-problems

https://pinside.com/pinball/forum/topic/announcing-new-product-to-help-resolve-resets-in-wpc-era-games/page/4

The new boards might not be as efficient at handling fluctuations in power from the wall. I'd definitely check wall voltage to eliminate that as a potential cause before going too far down the rabbit hole. Then you can start looking at the bridge rectifiers and big caps.

-Wes

Check your "Z" connector make sure it is sound and tight.

also check the condition of your ribbon cables.

dodgy cables can cause all kinds of issues, esp. w/the aux cable that goes to the dmd driver.

Yes, the diode is there to prevent to clasping field backflow. No Diode on the Coil can send over 100 V's backwards into the driver board and cause resets.

My TZ would reset hitting both flippers. I went through the game checking boards, connections, voltages, etc. The culprit was a bad thermistor in the power box in the bottom of the cabinet. Replaced the bad part and no more reset issues.