Ok, so my TZ seems to be schizophrenic at the moment.
I moved it from where it was sitting earlier on, where it was working fine, lifted it with my hydraulic table, moved it and put it back down again gently. Turned it on and it went crazy.
Clock kept going around
“Gnd Short Row 1 is Stuck Closed”
Turned it off and back on a couple of times and got a variety of bad results, including:
All three Gumball flashers locked on
Check switch errors for virtually everything.
Auto kicker and/or gumball VUK (?) coils firing repeatedly
Clock not moving
Coin door buttons not doing anything
I removed all of the connectors at the bottom of the MPU, and put them back in. When I booted it next it was behaving normally (clock ended on 12), but all the “check switch” errors remained.
As far as I can make out almost every switch had thrown an error. It seems the test report only tells you about a few of them (6?), so every time I manually activated a switch to clear the errors there would be another 6 showing on the test report.
At this point the Switch Levels (or is it Edge) looked normal, but the game still wanted me to activate every switch to get rid of the error.
After I did this I played a few games and everything worked as normal.
Clearly something isn’t right though. When my GI wasn’t dimming one of the things that was suggested to me was to press down on the ASIC edges. When I did this TZ went crazy then too, and I “fixed” it by tapping on the ASIC - it magically went back to normal.
It seems like something on my MPU isn’t right, but what? The batteries have been off the board for 3+ years incidentally.
I moved it from where it was sitting earlier on, where it was working fine, lifted it with my hydraulic table, moved it and put it back down again gently. Turned it on and it went crazy.
Clock kept going around
“Gnd Short Row 1 is Stuck Closed”
Turned it off and back on a couple of times and got a variety of bad results, including:
All three Gumball flashers locked on
Check switch errors for virtually everything.
Auto kicker and/or gumball VUK (?) coils firing repeatedly
Clock not moving
Coin door buttons not doing anything
I removed all of the connectors at the bottom of the MPU, and put them back in. When I booted it next it was behaving normally (clock ended on 12), but all the “check switch” errors remained.
As far as I can make out almost every switch had thrown an error. It seems the test report only tells you about a few of them (6?), so every time I manually activated a switch to clear the errors there would be another 6 showing on the test report.
At this point the Switch Levels (or is it Edge) looked normal, but the game still wanted me to activate every switch to get rid of the error.
After I did this I played a few games and everything worked as normal.
Clearly something isn’t right though. When my GI wasn’t dimming one of the things that was suggested to me was to press down on the ASIC edges. When I did this TZ went crazy then too, and I “fixed” it by tapping on the ASIC - it magically went back to normal.
It seems like something on my MPU isn’t right, but what? The batteries have been off the board for 3+ years incidentally.