(Topic ID: 321964)

judge dredd switch row 8 (white-gray) not responding

By quantumjosh

1 year ago



Topic Stats

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#1 1 year ago

hey guys so im working on a judge dredd and row 8 on the switch matrix is out thats white/gray with the 3 row targets, drop target "E", captive ball 3.. but when i clipped on to one of the switches (the captive ball 3 switch) and touched the corresponding white/gray pin that enters the mpu im getting continuity on my multimeter so seems like i dont have a shorted wire..? what else could the issue be thats taking out the switch row?

#2 1 year ago

What exactly do you mean by "taking out"?

What does the DMD report in switch test mode?

Use ALL the tools available to you to identify and narrow down the field of your search.

#3 1 year ago

Is the entire row actually out. Did you test every switch in the row?

You didn’t mention the subway switch on row 8.

You can jump J207-1 to J209-9 on the MPU to see if the 3 bank activates in switch edge test to narrow the problem down to the MPU or the playfield

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