(Topic ID: 79650)

TECH—TZ Only Resets When Cold (Doesn’t Reset When Warm Despite 5V Only At 4.8V)

By NM

10 years ago


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#34 10 years ago

Can you trigger a reset by wiggling those connectors? One of my machines reset infrequently, but I discovered that wiggling J101 would trigger it.

2 weeks later
#49 10 years ago

I thought everything I always read suggested replacing the capacitors when you replace the bridge rectifier. If your C5 is original, but BR2 is not, replacement seems like the obvious place to start.

1 week later
#58 10 years ago
Quoted from RobKnapp:

OMG my ST:TNG is now rebooting when flippers are presses. And in attract mode. This is not going to be easy. My Technical skill is lousy .

There is a very well documented guide to help you find and fix the problem. The steps are ordered based on a balance of likelihood, ease of diagnostics, ease of fix, etc. Follow the steps in order!

http://www.pinwiki.com/wiki/index.php?title=Williams_WPC#Game_resets

Start at section 4.8 and read. You'll learn a ton! You'll find "Step 1: measure line voltage" in section 4.8.3.

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