Hard Key Code Check; Hard Check Function; Display, Ram, Drawer And Printer Check; Read/Write Test For Eeprom - Casio 200CR Service Manual

4-3. Hard key code check

When all keys except numerical keys, Clear key and FEED keys are pressed directly, the machine
displays the hard key code as shown below.
0 5
Hard key code
055 051
FEED
058 054 050
057 053 049
056 052

4-4. Hard check function

Enter 1 digit from numeral key and press the sub total (ST), the following Hard check function will
be executed.
1 +
(1)
2 +
(2)
3 +
(3)
4 +
(4)
5 +
(5)
7 +
(6)
8 +
(7)
9 +
(8)
6 +
(9)

4-4-1. Display, RAM, drawer and printer check

Operation
1) All segments turn on.
8. 8.
2) Date and time set.
Date : 31st December 1995
Time : 23 : 59 : 00 P.M.
Above conditions are automatically set on the machine.
Hard key code (2 digits)
5
Hard key code table
047 041 035 029 023 017
7 8 9 046 040 034 028 022 016
4 5 6 045 039 033 027 021 015
1 2 3 044 038 032 026 020 014
C 0 011 012 043 037 031 025 019 013
ST
: Display, RAM, Drawer, Printer test
ST
: Print test
ST
:

Read/Write test for EEPROM

ST
: Read test for EEPROM
ST
: RAM read test
ST
: Voltage check for memory protection battery
ST
: Print all characters
ST
: Display the time
ST
: Country code write to EEPROM
1 + ST
:
8. 8. 8. 8.
— 5 —
026, 020 are effected for ST.
8. 8.