I got my new lcd screen (LK204-24-USB-WB version 1.0) and the indicator bus to go with it, but when I tried to test it using the software from the forums here I encountered a problem. Everything else seems to work fine, but when I tried to test the leds, turning on GPO 1-4 does nothing, GPO 5 turns on the led labeled GPO 4 on the back of the pc board of the leds, GPO 6 turns on the led labeled GPO 5 on the board, and I can't get the LED labled GPO 6 to turn on normally.
The ribbon cable between the lcd board and the led board is connected exaclty as is shown on the picture in these forums. I was able to get all the leds to work using other power, so I know it isn't a problem with them. I tested them again with the testing software with the same results after this. Any suggestions?
Summary:
LK204-24-USB-WB version 1.0 and the LED Indicator BUS
Activating GPO 1-3 does nothing, as expected
Activating GPO 4 does nothing
Activating GPO 5 turns on the LED labled GPO 4
Activating GPO 6 turns on the LED labled GPO 5
No way found to turn on the LED labled GPO 6, although it does work
Thanks for your help.
