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Super bright LED driver board for I-PAC
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Carsten Carlos:
Oscar, you are welcome!

Say, some day I must get the same digicam you got - you always've the niecest picture of glowing things! (monitors, LED-buttons...)  :D

You are the very first person I've ever seen making colored circuit-diagrams  ;D Very good idea, you never know how often you'll need additional 5V-lines! Oops, I mean LED-lines, on first sight I oversaw the multi-resistor!

As I'll have more then one controlpanel, I decided to include the resistor for the LED (these are the ones directly for the screwing-terminal) on the panels itself, as I might choose different LED-types.
Carsten Carlos:
Nice meeting, we're at least three here from the good ol' LED-buttons-thread, anyone wanna a beer?  :D

(I'm just happy 'cause my cab is finally able to play  ;D )
1UP:
 :o OOPS...

I havent used my I-PAC LEDs for a while, just plugged the harness back in to check it out, and the LEDS don't blink anymore!  :'(

Under Windows 2000, when I go to play a game that uses start button LEDs (Pac-Man etc) and "insert coins," the LED harness lights do not blink.  However, I can see the keyboard LEDs blinking.

The strange thing is, when I press Caps Lock, Num Lock etc, the LEDs on the harness light up (steadily with no blink) as expected.  This works whether I am in a game or not.  Also, the problem arises in 2 different versions of Mame.
 
Hey guys, please let me know if this is an issue you are aware of, and how I might fix it.  The LEDs used to work properly, I'm not sure what could have caused them to stop.

BTW, I'm having the same problems whether I use the LED driver board or just the LED harness with the original LEDs installed...

PS, I already emailed Andy, but he's usually a bit busy...

Thanks
cdbrown:
That's awesome Oscar.  I had pretty much given up on the whole LED thing as I was getting far too carried away with it (lights under every button) Carsten can confirm this.  I think I could even make something from that write up and I have no idea about electrics.

The desire for lights under the buttons is slowly returning.....

Cheers
-cdbrown
Carsten Carlos:

--- Quote from: 1UP on February 21, 2003, 03:02:12 am ---The strange thing is, when I press Caps Lock, Num Lock etc, the LEDs on the harness light up (steadily with no blink) as expected.  This works whether I am in a game or not.
--- End quote ---

Whee, that really sounds strange!
Some stupid things I'd try (If this would work I wouldn't know why):

Are you using USB or PS2? Try the other connection (and don't forget the jumper-setting ;))

I bet you know, but at some point they added (at least in MAME32) an option to disable the led-blinking-feature. Who on earth would do this?  ???
Anyway, also might be worth a checking.

As the LED-harness does work when pressing NUM-lock,... the I-Pac should be ok I guess.
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