I need help with an LCD problem...I am running a 20x2 dot matrix LCD with the Sanyo LC7985NA controller. The unit also has a Seiko chip SED1181FLA. I have the screen powered up and it has (20) solid 5x7 dots only on the top row. I tried using the prewritten LCD codes with no luck.
I tested the pinouts by checking continuity and found all GND's and +5V. I also found DB0-7, RS, RW, & E.
Pinout:
Pin 1 - GND
::::Attached to GND
Pin 2 - LED GND (this is a two-colored external LED which I know how to control)
::::Attached to GND
Pin 3 - +5V Green LED
::::Attached to +5V
Pin 4 - + 5V Red LED
::::Unattached for now
Pin 5 - DB4
::::Attached to Arduino Pin 5
Pin 6 - DB5
::::Attached to Arduino Pin 4
Pin 7 - DB6
::::Attached to Arduino Pin 3
Pin 8 - DB7
::::Attached to Arduino Pin 2
Pin 9 - E: Execution start input to R/W
::::Attached to Arduino Pin 11
Pin 10 - RS
::::Attached to Arduino Pin 12
Pin 11 - Sanyo V5, Seiko VSSH
::::Attached to GND
Pin 12 - Sanyo VDD, Seiko VDD
::::Attached to +5V
Pin 13 - Sanyo R/W, DB0, DB1, DB2, DB3, Seiko VSS
::::Attached to GND
Pin 14 - GND
::::Attached to GND
Any ideas of what could be wrong?