Sharp R-3A56 - Component Replacement and Adjustment Procedure

19
R-3A56
38 R13 OUT Segment data signal.
Signal similar to D8.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to R08-R03 terminal while
one of G5 line keys on key matrix is touched.
39 R20 OUT Segment data signal.
Signal similar to D8.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to R00-R03 terminal while
one of G4 line keys on key matrix is touched.
40 R21 OUT Segment data signal.
Signal similar to D8.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to R00-R03 terminal while
one of G3 line keys on key matrix is touched.
41 R22 OUT Segment data signal.
Signal similar to D8.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to R00-R03 terminal while
one of G2 line keys on key matrix is touched.
42 R23 OUT Segment data signal.
Signal similar to D8.
Pin No. Signal I/O Description