Sharp R-308DW Service Manual page 22

R-308DW
R -310 DK
R-310DW
Pin No. Signal
33 P27 OUT
34 P26 OUT
35 P25 OUT
36 P24 OUT
37 P23 OUT
38 P22 OUT
39 P21 OUT
40 P20 OUT
41-48 P17-P10 OUT
49-50 P07-P06 OUT
51-72 OUT
SEG21-SEG0
73/74 VCC/VREF
75 AVSS
76 COM3 OUT
77 COM2 OUT
78 COM1 OUT
79 COM0 OUT
80 VL3
I/O
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P41, P43, P44 and P45
terminal while one of G8 line keys on key matrix is touched.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P41, P43, P44 and P45
terminal while one of G7 line keys on key matrix is touched.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P41, P43, P44 and P45
terminal while one of G6 line keys on key matrix is touched.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P41, P43, P44 and P45
terminal while one of G5 line keys on key matrix is touched.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P41, P43, P44 and P45
terminal while one of G4 line keys on key matrix is touched.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P41, P43, P44 and P45
terminal while one of G3 line keys on key matrix is touched.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P41, P43, P44 and P45
terminal while one of G2 line keys on key matrix is touched.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to AN0, P41, P43, P44 and
P45 terminal while one of G1 line keys on key matrix is touched.
Terminal not used.
Terminal not used.
Segment data signal.
Connected to LCD.
The relation between signals are as follows:
LSI signal (Pin No.)
SEG 21 (51) .................................. SEG3
SEG 20 (52) .................................. SEG2
SEG 19 (53) .................................. SEG1
SEG 18 (54) ................................ SEG22
SEG 17 (55) ................................ SEG21
SEG 16 (56) ................................ SEG20
SEG 15 (57) ................................ SEG19
SEG 14 (58) ................................ SEG18
SEG 13 (59) ................................ SEG17
SEG 12 (60) ................................ SEG16
SEG 11 (61) ................................ SEG15
IN Connected to GND.
IN Connected to VC.
Terminal not used.
Common data signal: COM1.
Connected to LCD signal C1.
Common data signal: COM2.
Connected to LCD signal C2.
Common data signal: COM3.
Connected to LCD signal C3.
IN Power source voltage input terminal.
Standard voltage for LCD.
Description
LCD (Pin No.) LSI signal (Pin No.)
SEG 10 (62) ............................... SEG14
SEG 9 (63) ............................... SEG13
SEG 8 (64) ............................... SEG12
SEG 7 (65) ............................... SEG11
SEG 6 (66) ............................... SEG10
SEG 5 (67) ................................. SEG9
SEG 4 (68) ................................. SEG8
SEG 3 (69) ................................. SEG7
SEG 2 (70) ................................. SEG6
SEG 1 (71) ................................. SEG5
SEG 0 (72) ................................. SEG4
20
LCD (Pin No.)