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View Full Version : Anyone good with switch matrix problems?



gunigoogoo
29th August 2006, 09:35 AM
OK, I have an entire column 6 out on the switch matrix (J207-6). Any clues where to look for the problem? Can't see any broken wires. Tested for continuity, all good. Will a bad diode cause the entire column to go out? Could it be related to the U20 chip on the board? Cheers.

humpalot
29th August 2006, 09:38 AM
Check the transistors.

Ric
29th August 2006, 10:12 AM
which game?

gunigoogoo
29th August 2006, 08:45 PM
which game?
T2