Because "94V-0" is printed on millions of circuit boards worldwide, look closely at the edges of the PCB for a secondary stamped or printed part number (such as PHICO SS-M , 1074 , 1620 , or similar alphanumeric strings) to pinpoint the exact display variant. Common Architecture: The HD44780 Standard
Most PHICO character modules use the industry-standard Hitachi HD44780-compatible 16-pin interface: Pin VSS Ground (0V) 2 VDD Power Supply (+5V) 3 VO Contrast Adjustment (via potentiometer) 4 RS Register Select (H: Data / L: Instruction) 5 R/W Read/Write (H: Read / L: Write) 6 E Enable Signal 7-14 DB0-DB7 Data Bus Lines (DB7 used for Busy Flag) 15 A (LED+) Backlight Anode (+5V) 16 K (LED-) Backlight Cathode (0V)
When you look at the printed circuit board (PCB) attached to the back of an LCD module, you will frequently see text etched into the copper or silkscreened onto the board reading "PHICO D0" and "94V-0". phico d0 94v0 lcd display datasheet pdf
If you are designing a commercial product, insist on an official datasheet from your supplier. If you are a hobbyist, the standard Arduino LiquidCrystal library with the pinout above will get your PHICO D0 display working in minutes.
A full PDF datasheet for the common is available on Scribd . Because "94V-0" is printed on millions of circuit
connected) without any data lines attached, turning the contrast potentiometer should reveal solid rectangles on the first line of the display. If no blocks appear, your contrast voltage ( V0cap V sub 0 ) is wrong, or the logic board is fried.
The first and most critical thing to understand is that . This is the primary reason why your search is so difficult. Instead, it is a collection of descriptive codes found on the PCB (Printed Circuit Board) of what was likely a custom or OEM (Original Equipment Manufacturer) LCD module. If you are a hobbyist, the standard Arduino
Even without the PDF, you can solve 90% of issues with the PHICO D0 94V-0.
potentiometer. Connect the other two outer legs of the potentiometer to +5V and Ground.