it's correct and solved now...

I installed 12V lamps (probably with resistor inside) and it's working fine...I guess led's need resisitors as said here.

The only problem is that I lost GPO2, the small black box to the left of the GPO2 pins burned.

Thanks,
Ulisses

Henry,

I tried 3 times to send you an e-mail with my address but it returned as undelivered.
Do you have another e-mail ?

Anyway, here is my address for the replacement:

ALPHALINE TRADING CORPORATION
Att. Ulisses Simionato

2898 NW 79 Avenue
Miami FL - 33122-1033
Ph 305-471-0020 - Fx 305-471-7980 ...

Maybe the led I tested now has a resistor inside, is there a way to check that testing the led ???
Hnery, how do we manage the MOSFET replacement ?

Thanks,
Ulisses

Both blew up, led and GPO2, I just tested GPO1 and GPO3 with new leds (different brand) and it's working fine (without resistors)
maybe the first leds were 5 volts, not 12....not sure right now.

Anyway I lost GPO2...

I'm copying this project:
http://www.digital-flight.com/lcd_project.htm

Thanks ...

no....just a direct connection to the led....

led pin 1 to GPO1
led pin 2 to GPO2

thanks,
Ulisses

Hello,

I have a LK204-25PC.
I was programming and testing it, everything was working fine, buttoms, etc, until I tried to test 3 LED's in the GPO's connections.
The Led's are 12V and I connected LED 1 to GPO 1-2, LED 2 to GPO 3-4. LED 3 to GPO 5-6.
I used the iotest software to test the GPO, and ...