Terminator 2: Judgement Day

Manufacturer	System	Year	Model	Produced
Williams	WPC-Dot Matrix	1991	50013	15,202

Terminator 2: Judgement Day Playing Tips and Rule Sheet

Terminator 2: Judgement Day Shop Guide

1 Game-Specific Issues

1.1 Diode "Tie Back" missing causes Driver Board transistor Q20 to fail

The violet/orange "diode tieback" wire, attached to the power side of the drop target reset coil in Terminator 2. Photo Credit: John Wart Jr.

Q20, with a major malfunction, due to the diode tieback wire connection being missing. Photo Credit: John Wart Jr.

Similar to the common problem that Star Trek: The Next Generation owners encounter, Terminator 2 can lose the "diode tieback" connection, causing Q20 to fail, as pictured on the right.

Without this "diode tieback", Q20 on the driver board WILL be damaged and the associated coil is likely to become locked on and melt. The diode tie-back wire is violet/orange and connects from the coil power side on the drop target assembly coil lug to J122 pin 9 on the driver board. If the solder connection at the coil lug is solid, suspect the wire connection at the J122 IDC connector. Repinning this connection with good a quality crimp-on Trifurcon pin is advised.

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