Casio QT 6000 Service Manual - Page 35

] RAM WRITE/READ test, 4 ] RAM READ ONLY test, READ ONLY test for RAM is performed

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[ 3 ] RAM WRITE/READ test [Function] WRITE/READ test for RAM is performed. A counter is displayed for RAM test as follows. [Operation] Operation : n 0 1 1 ST n: 0 = One time check (can be omitted) not 0 = Continuous check (To stop the test, press "ESC" key) [LCD] RAM RAM WR END n011 OK n011 NOTE: Prints the address of the error in case the test ended with an error. [PRINT] RAM RAM WR END n011 NG n011 Prints the address of the error in case the test ended with an error. [ 4 ] RAM READ ONLY test [Function] READ ONLY test for RAM is performed Note that WRITE test (n011) must be performed right before this test. [Operation] Operation : n 1 1 1 ST n: 0 = One time check (can be omitted) not 0 = Continuous check (To stop the test, press "ESC" key) [LCD] RAM RAM RD END n111 OK n111 NOTE: Prints the address of the error in case the test ended with an error. [PRINT] RAM RAM RD END n111 OK n111 Prints the address of the error in case the test ended with an error. - 33 -

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— 33 —
[ 3 ] RAM WRITE/READ test
[Function]
WRITE/READ test for RAM is performed.
A counter is displayed for RAM test as follows.
[Operation]
Operation :
n
0
1
1
ST
n:
0 = One time check (can be omitted)
not 0 = Continuous check (To stop the test, press "ESC" key)
[LCD]
RAM
n011
RAM WR
OK
END
n011
[PRINT]
NOTE: Prints the address of the error in case the test ended
with an error.
Prints the address of the error in case the test ended with an
error.
RAM
n011
RAM WR
NG
END
n011
[ 4 ] RAM READ ONLY test
[Function]
READ ONLY test for RAM is performed
Note that WRITE test (n011) must be performed right before this test.
[Operation]
Operation :
n
1
1
1
ST
n:
0 = One time check (can be omitted)
not 0 = Continuous check (To stop the test, press "ESC" key)
[LCD]
RAM
n111
RAM RD
OK
END
n111
RAM
n111
RAM RD
OK
END
n111
NOTE: Prints the address of the error in case the test ended
with an error.
Prints the address of the error in case the test ended with an
error.
[PRINT]