HP 9121D/S User Manual page 12

HP 9121/22 D/S
SERVICE TEST
The Service test is selected by setting the HP-IB address switch
to the desired test address as shown below. Start the test by
momentarily shorting the SELFTEST pins on the Control PCA.
Keeping the LOOP pins shorted will cause the 9121 to loop on the
selected test.
The TEST segment of the HP-IB switch must remain in the up
position (refer to the illustration on page 3-1).
Address Test IIBlinks for pass
0 RAM 1
1
ROM
2
2
HP-IB
3
3
FOC
4
4
SEEK TRK 0
5
5
MOTOR SPEED
6
6
FORMAT
7
7
READ/VERIFY
8
The Self test LED goes on for 5 seconds at the beginning of the
test. If the test passes, the LED blinks the number of times
indicated, then off.
If
the test fails, the LED goes on for 5 seconds, then of f.
Remote Diagnostics
AMIGO PROTOCOL EXERCISER
Refer to the Amigo Exerciser section in this handbook.
5-2