Mr. Pinball Tip:

If you are having problems with premature failure of the infra-red LEDs used in later Williams games with the opto ball trough, check to see if the inside of the coin door mechanism is coming in contact with the LED PC board. A good slam to the coin door may cause it to hit the ball trough. This has even been known to cause the 270-Ohm resistors to physically break if the door is hit hard enough. This problem happened on Indiana Jones.

Dave Stambaugh

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