Sharp R-340A Service Manual page 18

R-340A
Pin No. Signal
36 P24 OUT
37 P23 OUT
38 P22 OUT
39 P21 OUT
40 P20 OUT
41-44 P17-P14 OUT
45-47 P13-P11 OUT
48-51 OUT
SEG24-SEG21
52 SEG20 OUT
53-59 OUT
SEG19-SEG13
60 SEG12 OUT
61-67 OUT
SEG11-SEG5
68 SEG4 OUT
69-72 OUT
SEG3-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 P44 - P47 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 P44 - P47 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 P44 - P47 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 P44 - P47 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 P44 - P47 terminal
while one of G2 line keys on key matrix is touched.
Terminal not used.
Segment data signal.
Connected to LCD.
The relation between signals are as follows:
LSI signal (Pin No.)
P13 (45) ......................... S16 (25)
P12 (46) ......................... S15 (24)
P11 (47) ......................... S14 (23)
SEG 24 (48) ................... S13 (22)
SEG 23 (49) ................... S12 (21)
SEG 22 (50) ................... S11 (20)
SEG 21 (51) ................... S10 (19)
SEG 19 (53) ..................... S9 (18)
SEG 18 (54) ..................... S8 (17)
SEG 17 (55) ..................... S7 (16)
SEG 16 (56) ..................... S6 (15)
SEG 15 (57) ..................... S5 (14)
SEG 14 (58) ................... S19 (13)
Segment data signal.
Signal similar to P13.
Terminal not used.
Segment data signal.
Signal similar to P13.
Terminal not used.
Segment data signal.
Signal similar to P13.
Terminal not used.
Segment data signal.
Signal similar to P13.
IN Connected to GND.
IN Connected to VC.
Common data signal: COM3.
Connected to LCD signal C3 (Pin No. 29)
Common data signal: COM2.
Connected to LCD signal C2 (Pin No. 28)
Common data signal: COM1.
Connected to LCD signal C1 (Pin No. 27)
Common data signal: COM0.
Connected to LCD signal C0 (Pin No. 26)
IN Power source voltage input terminal.
Standard voltage for LCD.
Description
LCD (Pin No.) LSI signal (Pin No.)
SEG 13 (59) .................... S20 (12)
SEG 11 (61) .................... S21 (11)
SEG 10 (62) .................... S22 (10)
SEG 9 (63) ....................... S23 ( 9)
SEG 8 (64) ....................... S24 ( 8)
SEG 7 (65) ....................... S25 ( 7)
SEG 6 (66) ....................... S26 ( 6)
SEG 5 (67) ........................ S 4 ( 5)
SEG 3 (69) ........................ S 3 ( 4)
SEG 2 (70) ........................ S 2 ( 3)
SEG 1 (71) ........................ S 1 ( 2)
SEG 0 (72) ........................ S 0 ( 1)
16
LCD (Pin No.)