Casio FV-600P Service Manual & Parts List page 54

Pin No. Name
79 KEYIN2
80 KEYIN1
81 TEMP
82 POWER KEY
83 REMOTE
84 XOUT
85 XIN
86 VDD0
87 VDD1
88 ~ 93 NC
94 GND1
95 GND2
96 VCO
97 EO
98 PSC
99 CE
100 A CUT
*
Pin No. Key Name
79 KEYIN1
80 KEYIN2
I/O
Key input terminals
In
CPU identifies the key signal by its voltage.
In Temperature detection terminal from thermistor
Power key monitor terminal
In H: Power on
L: Power off
In Remote control signal terminal
— Clock oscillator terminals
In VDD terminals (5 V)
— Not used
— GND terminals
— Not used
Sound switching signal
Out H: Beep
L: Voice
Key Name
VOLUME (-)
VOLUME (+)
CONTROL (-)
CONTROL (+)
FRONT PRJ / REAR PRJ
MENU
SET
— 53 —
Description
Input Voltage Range
4.570 V or more
3.555 ~ 4.570 V
0.508 ~ 1.532 V
4.570 V or more
2.539 ~ 3.555 V
1.532 ~ 2.539 V
0.508 ~ 1.532 V
Note
*