I would not be the least surprised if a bad diode somewhere, on my DESW there was four of them for some reason.
(Topic ID: 308204)
Linked Games
Star Wars
Data East, 1992
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Quoted from TheCollector:Thanks for the response!
I tested the switches by manually triggering them and with the ball.
Both ways displayed the switches on the DMD in diag mode.
Only one switch actuated at a time.
Did you check the one on the bottom of the subway from the deathstar to the VUK?
Quoted from TheCollector:Update…
After testing the switches over and over during game play they will intermittently register. It seems to rely on sequencing of when the switches are hit.
It shows I am running cpu 1.03 on power up but I am questioning the CPU chip installed as all of the wiring looks good and the switches/diodes test fine.
Here is a pic of my CPU.
Possibly the programming is off/wong?
Thoughts?
No, you would get a checksum error.
I suspect a diode or connection that is flaky during operation.
Quoted from vec-tor:I wonder if the V.U.C. assembly is assembled wrong.
Easy enough to test switch and the ball does pop out on ball search.
Quoted from vec-tor:True, But what about the ball rest cup?
The cup is the trigger point for the switch.
In test mode, just take a stick and press the cup down.
I'm pretty sure either switch will trigger triball operation though with the VUK being the backup.
Quoted from Shogun00:Most likely it's a special switch. Special switches aren't part of the switch matrix.
Nope, Switch #36 left VUK is part of the switch matrix.
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