(Topic ID: 315051)

Help Playfield Switches Not Working

By SacPinDaddy

1 year ago



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#1 1 year ago

I was tightening a pop bumper switch on my Lethal Weapon with the machine on (door open) which I shouldn’t have and I slipped and there was a small spark. Now none of my pop bumpers switches are working or the three lane guide switches. Silonoids are working at the pop bumpers. Other switches on the playfield are working. Any suggestions? I didn’t see any blown fuses.

#2 1 year ago

More info. The switches seem to be getting power. I noticed that the switches that don’t work are all on the same column in switch matrix. Any idea how to fix the issue? Thanks

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#3 1 year ago
Quoted from SacPinDaddy:

I was tightening a pop bumper switch on my Lethal Weapon with the machine on (door open) which I shouldn’t have and I slipped and there was a small spark.

Sounds like you fried a transistor or diode on the switch matrix.

#4 1 year ago

RA 6 pin 3 then to C76 .01 m, then transistor Q50 2n3904.

You could try the 2n3904 first .

#5 1 year ago

Ok ok ok ok ok ok ok

#6 1 year ago

It was transistor at Q50! All fixed. Thanks!!!

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