I cant really simulate lcds so i cant tell. If i had the same lcd i would be able to help more. It can be many things. If you have a multimeter most have a option for checking closed circuits. You can check the soldered pins agaisnt the actual lcd pins to test if its a solder issue.
Its getting warm perhaps because you are feeding 9v and it has to dropout about 1v for its own use then 3v more is all heat .. To get to 5v
Can you post a link to where you bought it again so i can order one to test this week
I checked it a lot of times with the multimeter. Connections from the PIC to the 40-pin connector are all ok, but what I suspect is that the 40-pin connector may not actually touch all the PCB traces leading to the actual LCD module since the traces are very tiny and for this I have no way to be sure except to re-solder the pins which i have done a few times.
no problem. Ill make a order on monday, since they are closed today most likely anyway. Also i want to get some other things and i rather order all on 1 day
no problem. Ill make a order on monday, since they are closed today most likely anyway. Also i want to get some other things and i rather order all on 1 day