 |
Your Ti-99/4a Joysticks start to behave erratic, do not take inputs at all - do not allow you to fire on those "TI-Invaders" anymore?
Do not despair!
TOM to the rescue :-)
|
 |
When you open the case (just unscrew the two screws at the bottom) you will see this...
simply take out the "foam-mat" and unplug the thin plastic-layer.
|
 |
Here is the printed plastik foil removed from the TI-99/4a Joystick. |
 |
When you look closer, you will see quit a bit of abrassion, or even missing/broken traces.
the easiest way is to check all signalways with a multimeter in continuity mode.
|
 |
Also the contacts on the "other" side loose their coating...
Here is a closeup of the firebutton...
|
 |
And here one of the 4 "direction" contacs. |
 |
Use some "Silberleitlack" (silver conductive paint) to repaint the necessary traces. |
 |
Repainted foil...
PS: use very small amounts of paint, do not create shorts and let the paint dry good and thoroughly.
|
 |
Repainted firebutton...
Put everything back together and start shooting these "Invaders" :-)
Oh no! i'v been hit!!! AHHHHHH!
|