Sharp R-320BB Service Manual page 24

R-320BB
R-320BK
R-320BW
Pin No. Signal
25 P41 OUT
26 P40
27 RESET
28-29 P71-P70 OUT
30 XIN
31 XOUT OUT
32 VSS
33 P27 OUT
34 P26 OUT
35 P25 OUT
36 P24 OUT
37 P23 OUT
38 P22 OUT
39 P21 OUT
40 P20 OUT
41-44 P17-P14 OUT
45-51 OUT
SEG27-SEG21
I/O
Terminal not used.
IN Connected to VC.
IN Auto clear terminal.
Signal is input to reset the LSI to the initial state when power is applied. Temporarily set "L"
level the moment power is applied, at this time the LSI is reset. Thereafter set at "H" level.
Terminal not used.
IN 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.
IN Power source voltage: -5.0V.
VC voltage of power source circuit input.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P43 - P46 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 P43 - P46 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 P43 - P46 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 P43 - P46 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 P43 - P46 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 P43 - P46 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 P43 - P46 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 P43 - P46 terminal while one
of G1 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.)
SEG 27 (45) ....................... S16 (25)
SEG 26 (46) ....................... S15 (24)
SEG 25 (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)
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) ........................ S4 ( 5)
SEG 3 (69) ........................ S3 ( 4)
SEG 2 (70) ........................ S2 ( 3)
SEG 1 (71) ........................ S1 ( 2)
SEG 0 (72) ........................ S0 ( 1)
22
LCD (Pin No.)