Graphic LCD problem,please help!

murtis · Joined: 12 Aug 2007 Posts: 41

Hi,

i am using PIC18F4620 and Graphic LCD. Graphic LCD is working on Bread Board properly, but graphic LCD is not working properly on PCB. Graphic LCD shows full screen like that glcd_fillscreen(ON);

All connection is true...

could you help me about this subject, please?
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MurtiS

Guest · Posted: Tue Aug 14, 2007 2:28 am

Check hardware, signal connection, power pins, etc. Try adjust contrast. You are probably have trimpot, and try adjust them. Maybe it is everything ok, just you can't see picture.

Guest · Posted: Tue Aug 14, 2007 3:15 am

Sorry,

I don't read your mail carefully. Your display have +5V and show nothing. You must ensure your pic working and check connection to display.

Best regards, Turky