IBM 7426 Manual page 12

7
Testing Port 2
D
Loosen the retaining screws of the test plug in
port 1.
D
Remove the test plug from port 1 and insert it
in port 2.
D Tighten the retainer screws.
D
Press the lnit/Test switch to Test (right).
ls the Test Mode lamp blinking and the Machine
Check lamp out (after 3 seconds)?
YES NO
1
ls this the first time you have reached
this step?
YES NO
1
D
Notify your supervisor
and return the 7426 to
IBM (see Chapter 5).
D Press the Power Switch to OFF (0).
D Move the test plug from port 2 to
port
0.
D Restart Procedure 4, Powering On.
D Go to Procedure 8.
1-8
'
/
Retainer
Screws