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(Topic ID: 271547)

Gottlieb System 1 Display Causing Chip Damage?

By Genieye

3 years ago


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  • Latest reply 3 years ago by G-P-E
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#2 3 years ago
 
???

JethroP

Pinside+ Frequent

6y 101K 3,120 9 14 1

Not sure where location Z6 is, but U16 is an output to the displays. Maybe the same?
One thing that will damage chips on the CPU is disconnecting displays while the unit is powered up. Perhaps there is a loose connection between one of the displays and the CPU, and during game play the connection was lost and therefore ruined the chip. I would check the connectors/connections between CPU and displays. If they are original, they should be replaced.

Another thing before you go buy new displays....if you are not using player 3 and 4, then just disconnect them. You can play without them connected, you just cannot connect or disconnect them with power on.

There is also some good info on display issues here:
http://www.pinrepair.com/sys1/

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