JVC KD-LX333R Service Manual page 33

QQ
3 7 63 1515 0
LC75878W (IC601) : LCD driver
1. Pin layout
2. Block diagram
GENERAL
OSC
GENERATOR
VLCD
CONTRAST
TE
L 13942296513
VLCD0
VLCD1
VLCD2
VLCD3
VLCD4
VDD
VSS
3. Pin function
No. Symbol
1~73 SEG1~SEG73
74 SEG74
75 SEG75
76~83 COM8~COM1
84~87 P1~P4
88 VDD
89 VLCD
90 VLCD0
91 VLCD1
92 VLCD2
93 VLCD3
www
94 VLCD4
95 VSS
96 OSC
97 LCD RESET
.
98 CE
99 CL
100 DI
http://www.xiaoyu163.com
100 ~ 76
1 75
~ ~
25 51
26 ~ 50
COMMON
PORT DRIVER
CLOCK
ADJUSTER
I/O
O Segment driver output pin.
O Segment driver output pin.
O Segment driver output pin.
O
Common driver output pin.
O General-purpose output pin.
- Logic block power supply pin.
- LCD driver power supply pin.
O LCD driver bias 4/4 voltage (H-level) power pin.
I LCD driver bias 3/4 voltage (intermediate level) power pin.
I LCD driver bias 2/4 voltage (intermediate level) power pin.
I LCD driver bias 1/4 voltage (intermediate level) power pin.
I LCD driver bias 0/4 voltage (L-level) power pin.
- Power supply pin to connect to ground.
x ao
I/O
Oscillator pin. y
I Display off, general-purpose output port L fixed input pin.
i
I Chip enable
I Synchronization clock
I Transfer data
http://www.xiaoyu163.com
8
SEGMENT DRIVER & LATCH
CONTROL
REGISTER
SHIFT REGISTER
Q Q
3 6 7 1 3
CCB
INTERFACE
Function
u163
.
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
m
co
KD-LX333R
9 9
2 8 9 9
1-33