IBM 3270 Maintenance Manual page 302

1.
Select 17 (FIXED DISK DRIVE(S) &
ADAPTER) then press Enter.
2. Press 1 (RUN MEASUREMENTS TEST) then
Enter.
3. When ENTER DRIVE ID (C/D)? appears,
select the suspected failing drive, then press
Enter.
Note: The next page has examples of the
fixed-disk logic board and connectors. These
may not be the same as those in your system;
however, certain ones will be the same.
• Jl,
the control connector, has 34 pins.
• J2, the data connector, has 22 pins.
• The power connector has anyone or more
of the following:
Numbering on the plug
Numbering on the board
A ridge on the outside of the male plug
that is toward pin 1
A square solder land on pin
1.
CONTINUE
October 1984 3-1700-15