(Topic ID: 68377)

Bally Xenon Shut Down Issue

By IceCreamMan

10 years ago



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#1 10 years ago

Been restoring a Xenon machine. Here's all that I've done so far:
Rebuilt -54 board along with new male & female connectors and pins.
Replaced all the ceremic caps and diodes on the playfield switches (most were cut)
Replaces some bad / locked on coils
Brand new Alltek MPU board
Brand new Rottendog solenoid driver board
Brand new Rottendog LED displays

Game boots up fine and starts out playing good. Maybe 5 minutes into my first game, the unit lets a quick, sizzle type sound out of the speakers and basically powers itself down. Reboot and it's good to go for a while then does the same thing again.

I've read about similar items happening due to bad caps on the sound board(s). Is this my next logical step in troubleshooting it? Disconnect the sound board and see if the same thing happens?

#2 10 years ago

The entire software locks up or just the sound board?

#3 10 years ago

Machine totally shuts down....lights, flippers, bumpers, coils. etc. Goes through a reset and powers itself back on. I usually turn it off as soon as it happens.

Unplugged sound board (2-pin black and red line) and tested it that way. Same result.

#4 10 years ago

With power fully turned on, the rectifier board reads as follows:
TP2 = 229V DC
TP3 = 14.9V DC
TP4 = 6.2V AC
TP5 = 44.2V DC

Just powering the unit up and not playing a game, it stays on forever. I did notice that pop bumper #7 (top left) only works in test mode. Also, rollover #1 (top) will also cause drop target #1 to go down.

#5 10 years ago

A slam tilt will completely reset the MPU. Since you have PF issues, perhaps you have a switch matrix problem causing a slam tilt.

I would investigate the misfiring PF stuff. Figure out if it is the coils misfiring by using solenoid test and check everything goes in the right order. Check the switches in test as well.

#6 10 years ago

I had a problem with my Xenon shutting down and rebooting mid game, took me ages to resolve. I'd tried replacing the filter caps on the solenoid driver board, checked all connectors and reflowed solder on the headers. Eventually when removing a connector from the MPU board it broke in half! I fixed the connector and never had a problem since, so check your connectors carefully.

The rollovers at the top should drop the respective drop targets.

#7 10 years ago

Just realised I gave you a bum steer here, it was not a connector on the MPU board, it was actually connector J3 on the solenoid driver board that was causing my problems. It was quite a while ago I fixed it, so I had forgotten which connector it was, but I just checked to be sure, my Xenon's been solid since.

#8 10 years ago

Rebuild sound board and that cleared up my hum while in attract mode.

I'm looking at the playfield wiring right now along with the connectors going to the boards.

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