Casio QT-6600 Service Manual page 83

[ 37 ] PS/2 Keyboard Test
[Function]
Tests whether the interface operates correctly.
An echo command is transmitted to PS/2 interface keyboard to see if there is a correct echo
response.
It must be a command-response communication, and one transmission is performed per test.
If there is an error in data reception or a transmission time-out, the test is repeated the specified
number of times. The results are displayed at each retry and, then, printed out when the test ends.
When retry is set to repeat indefinitely, the test is repeated indefinitely.
Executing the test turns on the power to PS/2 and ending the test turns the power OFF.
[Operation]
Operation : r
r: Number of retries
0 3 times
1 5 times
2 7 times
3 10 times
n: Number of times
0 or no value
A value other than 0 (1 ~ 9) Tests repeat infinitely (press ESC to terminate)
[LCD]
PS/2 KB
OK **** NG ****
END
[PRINT]
PS/2 KB
OK **** NG ****
END
[Power Recovery Error]
An error occurs during the power recovery (because the system deletes the power recovery
process during this time).
1 n 0 9 4 ST
To perform a single test
r1n094
r1n094
r1n094
The number of successful/failed communication is
r1n094 printed out as a result when the test ends.
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