Tron Joystick trigger not firing

[Rocket]

Game works great with the exception that the trigger won't fire when
pressed. Other than that, the game works perfect. Any ideas? Thanks
for the help!

[Pat D.]

Microswitch is bad, pinched /cut wire?

Carefully take the joystick apart and see if you can get it to fire.
Check the condition of the wiring inside the joystick. If the crews and
nuts on the joystick are rusted/gunked up. Do not try to take it apart
without cleaning them first with a toothbrush and then spraying the
screws/nuts with some sort of penetrating oil like PB blaster. Be sure
the oil doesn't affect the plastic and gum itup or start dissolving
it. I have not used PB blaster on a Tron handle yet so wait for others
to check in.

WD-40 may work but I have found it doesn't work very well on rusted
hardware.

pat D.

[James R. Twine]

"Rocket" wrote in message
news:c65c6e7c-9090-40a5...@s8g2000prg.googlegroups.com...

>

> Game works great with the exception that the trigger won't fire when
> pressed. Other than that, the game works perfect. Any ideas?

As posted already, the switch inside of the joystick may be bad - but I
recall it being an older style leaf switch, not a microswitch, so it may
just be dirty contacts on the switch. When taking this joystick apart and
screwing it back together, you can pinch one of the switch's wires. I did
that on a previous Tron I had and took a while to figure out why it was not
firing.

The input may be shorted, and not open. I do not recall the Tron test
mode all that well, but it might help you figure out of that is the case.
A shorted input (with a working switch) may be a PCB-level problem (see
below).

If there is nothing wrong with the joystick switch itself or the short
wiring to the switch, start tracing the wire all the way back to the PCB
and see if it has continuity with the switch - that will quickly eliminate
or confirm a harness problem. If the wire to the PCB is good, you may have
an issue on the PCB itself - broken/cracked resistor pack, bad
input-related chip (i.e. 74LS253'), etc.

Good luck!

Peace!

--
-=- James R. Twine, MCP, (sp...@jrtwine.com)
[Get Delete FXP Files Now! http://www.deletefxpfiles.com]