Acer R-1200 Wartungshandbuch PDF herunterladen (Seite 22)

20

R-1200

R-1201

Pin No. Signal I/O Description

30 XIN IN Internal clock oscillation frequency input setting.

The internal clock frequency is set by inserting the ceramic filter oscillation circuit with respect

to XOUT terminal.

31 XOUT OUT

Internal clock oscillation frequency control output.

Output to control oscillation input of XIN.

32 VSS IN

Power source voltage: -5.0V.

VC voltage of power source circuit input.

33 P27 OUT

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.

34 P26 OUT

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.

35 P25 OUT

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.

36 P24 OUT

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.

37 P23 OUT

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.

38 P22 OUT

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.

39 P21 OUT

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.

40 P20 OUT

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.

41 P17 OUT

Hood lamp driving signal.

To turn on and off relay(RY3). "L" level: During

Hood lamp ON. "H" level: During Hood lamp

OFF.

42 P16 OUT

Hood lamp driving signal.

To turn on and off relay(RY4). " L " level: During

Hood lamp ON. "H" level: During Hood lamp

OFF.

43-47 P15-P11 OUT Terminal not used.

48-50

SEG24-SEG22

OUT Terminal not used.

51-72

SEG21-SEG0

OUT Segment data signal.

Connected to LCD.

The relation between signals are as follows:

LSI signal (Pin No.) LCD (Pin No.) LSI signal (Pin No.) LCD (Pin No.)

SEG 21 (51) ..................... SEG21 ( 1) SEG 10 (62) ........................ SEG10 (12)

SEG 20 (52) ..................... SEG20 ( 2) SEG 9 (63) ......................... SEG 9 (13)

SEG 19 (53) ..................... SEG19 ( 3) SEG 8 (64) ......................... SEG 8 (14)

SEG 18 (54) ..................... SEG18 ( 4) SEG 7 (65) ......................... SEG 7 (15)

SEG 17 (55) ..................... SEG17 ( 5) SEG 6 (66) ......................... SEG 6 (16)

SEG 16 (56) ..................... SEG16 ( 6) SEG 5 (67) ......................... SEG 5 (17)

SEG 15 (57) ..................... SEG15 ( 7) SEG 4 (68) ......................... SEG 4 (18)

SEG 14 (58) ..................... SEG14 ( 8) SEG 3 (69) ......................... SEG 3 (19)

SEG 13 (59) ..................... SEG13 ( 9) SEG 2 (70) ......................... SEG 2 (20)

SEG 12 (60) .................... SEG12 (10) SEG 1 (71) ......................... SEG 1 (21)

SEG 11 (61) .................... SEG11 (11) SEG 0 (72) ......................... SEG 0 (22)

ON

OFF

H : GND

L

ON

OFF

H : GND

L

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 39 40

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