Casio NX-4000, Руководство по обслуживанию и каталог запасных частей

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— 10 —
Pin No. Pin Name Input / Output Function
1 KO12 O Key common signal
2 KO O Switching signal for Xaxis and Y axis
3 KO10 O Strobe signal for AD converter
4 KO9 O Standby signal for AD converter
5 KO8 O Switching signal for TXR and TXL
6 KO7 O Switching signal for TYU and TYD
7 KO6 O Touch panel driving signal for TXL and TYU
8 KO5 O Touch panel driving signal for TXR and TYD
11 KO2 O Key common signal for TEST pad
12 KO1 O Key common signal for ON key
13, 18 ~ 20 KI8, 3 ~ 1 I Key in signal
21 BUFON O Chip select signal
22, 23 IT2, 1 I Interrupt input
24 ~ 42 AO18 ~ 0 O Address signal
43 OEBO O Output enable
44 WEBO O Write enable signal
45 CS10BO O Address signal (A19)
46 CS9BO O Address signal (A20)
47 CS8BO O Output enable signal
48 CS7BO — Check pad
49 CS6BO O Chip select signal
50 CSB5O O Chip select signal
51 CS4BO O Chip select signal
52 ~ 59 IO7 ~ 0 I/O Data bus
60, 61 OPT3, 2 — Check pad
62 OPT1 O Chip select signal
63 OPT0 — Check pad
64 ~ 71 PORT7 ~ 0 I/O I/O port
72 VSS I GND
73 PI I Ceramic oscillation input
74 PO O Ceramic oscillation output
75 VLC — Power terminal
76 XO O Crystal oscillation output
77 XI I Crystal oscillation input
78 VCC I +3V source
79 VREG2 I Voltage regulator input
80, 81 TS1, TS2 I Test terminal
82 VSSR I GND
83, 84 BZZ1, 2 O Buzzer signal output
85 VSS I GND
86 OCLK O Clock signal output
87 ITOFF I Power off terminal
88 TEMU I Test terminal
89 SW I Reset switch terminal
90 VDB I Back up power terminal
91 ~ 94 VD1 ~ 4 I Power for dubler
95 VREG1 I Regulator power
96 VREG4 I Regulator power
97 VREG5 I Regulator power
98 VDT1I I Voltage detector 2.3V
99 VDT2I I Voltage detector 2.5V
100 VREG3 I Regulator power
PIN FUNCTION
CPU (HD62119A03)