Actions Yes No
Step 19
If there is an attached antenna, check it for damage, and replace if
necessary.
Does the problem remain?
Go to step 20. The problem is solved.
Step 20
Make sure that the antenna is properly connected to the wireless card.
Does the problem remain?
Go to step 21. The problem is solved.
Step 21
Replace the wireless card.
Does the problem remain?
Go to step 22. The problem is solved.
Step 22
Replace the controller board. See
“Controller board removal” on
page 356.
Does the problem remain?
Contact the next level
of support.
The problem is solved.
Unsupported internal option service check
Action Yes No
Step 1
If applicable, make sure that the option cards are supported.
Does the problem remain?
Go to step 2. The problem is solved.
Step 2
Check the controller board pins for damage, and replace if necessary. See
“Controller board removal” on page 356.
Does the problem remain?
Go to step 3. The problem is solved.
Step 3
Make sure that the firmware version is the latest, and update if necessary.
Does the problem remain?
Contact the next level
of support.
The problem is solved.
7421
Diagnostic information
142
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