>>
>> Hi PICers,
>> I have a trouble. A big trouble. I want to hook a LCD module to pic16c84.
>> I build a schematics - it uses 8 bit interface. I get Microchip application
>> note  AN??? (sorry can't remember the number). I port it for 16c84, program
>> the chip and ...nothing happens. I use 2x20 LCD with LED backlight, so I
>> carefully examine LCD data sheet - it says Vo (LCD driving voltage) must be
>> 0..5V, use 10K-20K pot between 5v and ground - well evereting was OK. After
>> that I wrote a simple program that tests every line - evereting was OK,
>> but LCD still displays nothing - only the backlite is on but LCD is empty.
>
 Hi PICers. It's me again. Thanks to all who reply. Finally I solve the problem.
I change the LCD and it WORKS, so I think the old LCD is gone.

Best regards,
                                                           Greg