IBM 3270 Maintenance Manual page 200

5-1/4 Inch Diskette Drive
Assembly 600
You have entered this PIC because you have a
6XX error code or have identified a diskette drive
problem. Check the diskette drive assembly for
obstructions or broken parts and correct the
problem. Check your diskette for damage.
Note: The following table shows meter readings
that are acceptable for voltages described as
"approximately X Vdc." .
Requested Voltage Reading
Approximately 0.0 Vdc
Approximately 0.2 Vdc
Approximately 0.5 Vdc
Approximately 5.0 Vdc
Approximately 12.0 Vdc
Minimum
0.0 Vdc
0.1 Vdc
0.5 Vdc
2.0 Vdc
11.2 Vdc
Maximum
0.8 Vdc
0.3 Vdc
1.0 Vdc
5.5 Vdc
12.6 Vdc
IS YOUR DISKETTE FREE OF DAMAGE,
FORMATTED,ANDINSERTED
CORRECTLY?
NO
Use another diskette or insert the diskette
correctly. Repeat the test that failed and
see if this corrected your 6XX error. If
not, continue.
YES
October 1984
3-600~1