Demolition Man
Williams, 1994Just got a credit dot last night during playing Demoman. Checked the test report.
All the switches in Column 4 of the Switch Matrix chart stopped working.
That's 41-48 which includes the left/right slingshots and the two pop bumpers, among others.
They do fire in solenoid test however.
What is the simplest way to test this? Is that a U20 IC CPU board issue? U20-Pin15 not getting to U207-4?
I have reseated all the connectors already..twice..no change...
Thanks in advance for any help!
Pretty sure the problem is on the CPU board. I had started to socket the blown U20 chip and had a professional finish up the work. Game played fine for a week, then the entire Column 4, not Column 6 as I mentioned on the title (corrected). DOH!
Can I buzz U20-Pin 15 to U207 Pin4 to see if that run is broken somehow? Am I doing this right?
Follow good practice and use a diode to manually connect the pins on the molex first if it's failing there move up the chain.
The buzz is intermittent. The bad news is I see battery corrosion on the pins on J207. Gonna clean them up first and see.
Quoted from johnwartjr:Replace J207 and the mating connector. There's no 'cleaning' that up, short of replacing!
GPE carry these?
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Berea, OH