Read Sharp R-84ST (serv.man3) Service Manual online
R-84STM - 14
TOUCH CONTROL / DESCRIPTION OF LSI
LSI(IXA094DR)
The I/O signal of the LSI(IXA094DR) are detailed in the following table.
The I/O signal of the LSI(IXA094DR) are detailed in the following table.
Pin No.
Signal
I/O
Description
81
SEG9
OUT
Terminal not used.
82-90
SEG8-SEG0
OUT
Segment data signal.
Connected to LCD. Signal is similar to SEG39.
Connected to LCD. Signal is similar to SEG39.
91
VCC
IN
Connected to GND.
92
VREF
IN
Connected to GND.
93
AVSS
IN
Connected to VC.
94
COM3
OUT
Common data signal: COM3.
Connected to LCD (Pin No. 35).
Connected to LCD (Pin No. 35).
95
COM2
OUT
Common data signal: COM2.
Connected to LCD (Pin No. 34).
Connected to LCD (Pin No. 34).
96
COM1
OUT
Common data signal: COM1.
Connected to LCD (Pin No. 33).
Connected to LCD (Pin No. 33).
97
COM0
OUT
Terminal not used.
98-99
VL3-VL2
IN
Power source voltage input terminal.
Standard voltage for LCD.
Standard voltage for LCD.
100
C2
IN
Terminal not used.
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