Sharp R-310AK Supplemental Service Manual page 7

Pin No. Signal I/O
33 P71 OUT
34 P70 IN
35 RESET IN
36-37 P81-P80 OUT
38 XIN IN
39 XOUT OUT
40 VSS IN
41 P27 OUT
42 P26 OUT
43 P25 OUT
44 P24 OUT
45 P23 OUT
46 P22 OUT
47 P21 OUT
48 P20 OUT
49-50 P17-P16 OUT
51-62 OUT
SEG39-SEG28
63-66 OUT
SEG27-SEG24
Terminal not used.
Connected to VC.
Auto clear terminal.
Signal is input to reset the LSI to the initial state when power is applied. Temporarily set to
"L" level the moment power is applied, at this time the LSI is reset. Thereafter set at "H" level.
Terminal not used.
Internal clock oscillation frequency input setting.
The internal clock frequency is set by inserting the ceramic filter oscillation circuit with
respect to XIN terminal.
Internal clock oscillation frequency control output.
Output to control oscillation input of XOUT.
Power source voltage : -5.1V.
VC voltage of power source circuit input.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P74 - P77 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 P74 - P77 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 P74 - P77 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 P74 - P77 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 P74 - P77 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 P74 - P77 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 P74 - P77 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 P74 - P77 terminal while one
of G1 line keys on key matrix is touched.
Terminal not used.
Terminal not used.
Segment data signal.
The relation between signals are as follows:
LSI signal (Pin No.) LCD (Pin No.) LSI signal (Pin No.)
SEG 27 (63) ........................ S0
SEG 26 (64) ........................ S1
SEG 25 (65) ........................ S2
SEG 24 (66) ........................ S3
SEG 22 (68) ........................ S4
SEG 21 (69) ...................... S26
SEG 20 (70) ...................... S25
SEG 19 (71) ...................... S24
SEG 18 (72) ...................... S23
SEG 17 (73) ...................... S22
SEG 16 (74) ...................... S21
SEG 14 (76) ...................... S20
SEG 13 (77) ...................... S19
5
Description
Connected to LCD.
SEG 12 (78) .......................... S5
SEG 11 (79) .......................... S6
SEG 10 (80) .......................... S7
SEG 9 (81) ........................... S8
SEG 8 (82) ........................... S9
SEG 6 (84) ......................... S10
SEG 5 (85) ......................... S11
SEG 4 (86) ......................... S12
SEG 3 (87) ......................... S13
SEG 2 (88) ......................... S14
SEG 1 (89) ......................... S15
SEG 0 (90) ......................... S16
R-310AK
R-330AK
R-330AW
LCD (Pin No.)