texasmame
Well-known member
Trying to get my Centipede board back to recognizing the tracball.
D9 says it is tied to TRB0 thru TRB4 (presuming these are the four tracball directions) but it also is under the heading "joystick input circuit."
L9 says it is also tied to TRA0 thru TRA4 but it is under the heading "player input circuit."
Of course, below all that is "mini-trac ball circuit" but since this is an upright, that ain't it - er. . . is it?
So, on an upright with an original, unhacked harness, which reads the tracball - D9 or L9?
D9 says it is tied to TRB0 thru TRB4 (presuming these are the four tracball directions) but it also is under the heading "joystick input circuit."
L9 says it is also tied to TRA0 thru TRA4 but it is under the heading "player input circuit."
Of course, below all that is "mini-trac ball circuit" but since this is an upright, that ain't it - er. . . is it?
So, on an upright with an original, unhacked harness, which reads the tracball - D9 or L9?
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