JVC KS-LX200R Service Manual page 27

LC75873NW (IC601) : LCD driver
1.Block diagram
VDD1
COMMOM
DRIVER
VDD2
INH
CLOCK
OSC
GENERATOR
VDD
VSS
2.Pin functions
Pin No. Symbol
I/O
1~66 S3~S68 O
67~69 COM1~3 O
70 VDD -
71 VDD1 I
72 VDD2 I
73 VSS -
74 OSC I/O
75 INH I
76 CE I
77 CLOCK I
78 DI I
79 S1 O
80 S2 O
SEGMENT DRIVER
SHIFT REGISTER
ADDRESS
DETECTOR
Segment Output.
Common Driver Output.
Power Supply Connection.
Used for applying the LCD drive 2/3 bias voltage externally.
Must be connected to VDD2 when a 1/2 bias drive scheme in used.
Used for applying the LCD drive 1/3 bias voltage externally.
Must be connected to VDD1 when a 1/2 bias drive scheme in used.
Power supply connection.
Oscillator connection. An oscillator circuit is formed by connecting an
external resistor and capacitor to this pin.
Display off control input.
Chip enable input.
Synchronization clock input.
Serial data input.
Signal output.
Signal output.
Description
KS-LX200R
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