Belegung AV-Board:

Pin  	Druckerport 	Symbol 	Funktion
1 		8-24 (GND)	GND 		Ground potential (0V)
2 		-			VDD 		Power supply for logic (+5V)
3 		-			VEE 		Operating voltage for LC driving (input)
4 		17			D/I 		H:Data input L:Instruction code input
5 		- (GND)		R/W 		H: Data Read L: Data Write
6 		1			E 		Enable signal (falling edge)
7 ... 14 	2-9			D0...D7 	Data bus line
15 		14			CSI 		H: Chip selection left side
16 		16			CS2 		H: Chip selection right side
17 		- (+5V)		RST 		L: Reset
18 		-			VOUT 	Output voltage for LC driving (ca. -9V)
19 		- (+5V)		A 		Anode for LED backlight
20 		- (GND)		C 		Cathode for LED backlight (insert R8)


Belegung Display:

PIN FUNCTIONS
Pin No. 	Symbol 		Level 		Function
1 		FGND 			-- 		Frame Ground
2 		Vss 			-- 		Ground Potential (Logic)
3 		VDD 			-- 		Power Supply For Logic& LCD (+)
4 		VEE 			-- 		Power Supply For LCD (-)
5 		WR 			-- 		Data Write
6 		RD 			-- 		Data Read
7 		CE 			-- 		Clip Enable
8 		C/D 			--		Code / Data
9 		NC	 		-- 		No Connection
10 		/RESET 		-- 		Controller Reset
11~18 	DB0~DB7 		-- 		Data Bus Line
19 		FS 			-- 		Font Select
20 		RV 			-- 		Reverse