JVC KD-LX555R service manual 100 ~ 175 ~~, 4.11LC75878W IC601 LCD driver

4.11LC75878W (IC601) : LCD driver

• Pin layout

100 ~ 76

175

~~

25		51
26	~	50
• Block diagram
	P1	P4	COM1	COM8	S75/COM9 S74/COM10 S73	S1
	GENERAL		COMMON		SEGMENT DRIVER & LATCH
		PORT		DRIVER
OSC		CLOCK			CONTROL
	GENERATOR				REGISTER
VLCD

• Pin function

CONTRAST			SHIFT REGISTER
ADJUSTER
VLCD0
VLCD1		CCB
VLCD2
	INTERFACE
VLCD3
VLCD4
VDD
VSS
INH	DI	CL	CE

No.	Symbol	I/O	Function
1~73	SEG1~SEG73	O	Segment driver output pin.
74	SEG74	O	Segment driver output pin.
75	SEG75	O Segment driver output pin.
76~83	COM8~COM1	O	Common driver output pin.
84~87	P1~P4	O	General-purpose output pin.
88	VDD	-	Logic block power supply pin.
89	VLCD	-	LCD driver power supply pin.
90	VLCD0	O	LCD driver bias 4/4 voltage (H-level) power pin.
91	VLCD1	I	LCD driver bias 3/4 voltage (intermediate level) power pin.
92	VLCD2	I	LCD driver bias 2/4 voltage (intermediate level) power pin.
93	VLCD3	I	LCD driver bias 1/4 voltage (intermediate level) power pin.
94	VLCD4	I	LCD driver bias 0/4 voltage (L-level) power pin.
95	VSS	-	Power supply pin to connect to ground.
96	OSC	I/O	Oscillator pin.
97	LCD RESET	I	Display off general-purpose output port "L" fixed input pin.
98	CE	I	Chip enable
99	CL	I	Synchronization clock
100	DI	I	Transfer data

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