Casio QT-2100 Service Manual page 43

[ 2 ] RAM write/read test and read only test
These tests will check the write/read test and the read only test for RAM.
Operation : x n w
x : Type of RAM
1 = STD RAM
2 = Option RAM
0 or Space = STD and Option RAM
n : 0 = One time check
Not 0 = Continuous check ( To stop the test, press "Esc" key)
w : 0 = Write/Read
1 = Read only
Note : Perform the write test, before start of read only test.
RAM xn011
STD RAM WR OK
OPT RAM WR OK
END xn011
RAM xn011
STD RAM RD OK
OPT RAM RD OK
END xn011
When the both RAM are selected.
Note : In case of error, the error address will be displayed.
[ PRINT ]
1234567890123456789012345678901234567890
RAM xn011
STD RAM WR OK
OPT RAM WR OK
END xn011
Note : In case of error, the error address will be printed.
1 1 SUBTOTAL
[ LCD write/read ]
RAM
STD RAM WR
OPT RAM WR
END
[ LCD read only ]
RAM
STD RAM RD
OPT RAM RD
END
When the both RAM are selected, and
option RAM nothing.
— 41 —
xn011
OK
NG 0
xn011
xn011
OK
NG 0
xn011
[ PRINT ]
1234567890123456789012345678901234567890
RAM xn011
STD RAM RD OK
OPT RAM RD OK
END xn011