Sharp R-508CK Service Manual page 22

R - 50 8 C K
R - 5 10 C K
R -5 10C W
Pin No. Signal
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 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) .................................... S1
SEG 20 (52) .................................... S2
SEG 19 (53) .................................... S3
SEG 18 (54) .................................... S4
SEG 17 (55) .................................... S5
SEG 16 (56) .................................... S6
SEG 15 (57) .................................... S7
SEG 14 (58) .................................... S8
SEG 13 (59) .................................... S9
SEG 12 (60) .................................. S10
SEG 11 (61) .................................. S11
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) ................................. S12
SEG 9 (63) ................................. S13
SEG 8 (64) ................................. S14
SEG 7 (65) ................................. S15
SEG 6 (66) ................................. S16
SEG 5 (67) ................................. S17
SEG 4 (68) ................................. S18
SEG 3 (69) ................................. S19
SEG 2 (70) ................................. S20
SEG 1 (71) ................................. S21
SEG 0 (72) ................................. S22
20
LCD (Pin No.)