Operations - Casio PCR-255 Service Manual

8-3. Operations

1. Key code check (Hard key code)
When pressing a key, the machine displays the following key code.
FEED
C
7 8
4 5
2
1
0
011
0 2 2
022 : Hard key code
2. Switch check
Press " C " button, the switch condition is appered on a display.
Key code table
027
029
028 026
9
025
6 024
3
023
012
022
Display
PAD2 condition
Open : 1
Short : 0 (Export version) (Export version)
Non taxable PAD
Short : 1
Open : 0 (export version)
(Export version)
FEED button
OFF : 0
ON : 1
Mode key condition
PRG : 1
RF : 2
REG : 3
CAL : 4
— 10 —
021
020
019 017
018 016
014 015
013
127
Always 0
No display
No display
PAD1 condition
EEPROM mounted : 1
No EEPROM : 0
X : 5
Z : 6
OFF : 8
Others:0