IBM 6151 Maintenance And Service Manual page 120

External Power Cable
This SRA number is generated from an error log entry. There
may be an intermittent problem with the external power cable.
Check the external power cable for damage.
Additional Tests: None
Removal Procedure: None
Repair Checkout: Run the System Checkout
A6x
IBM PC Network Cable
Additional Tests: Run the IBM PC Network Link Checkout
Removal Procedure: See the Setup Instructions for the IBM PC
Network Short, Medium, and Long Distance
Kits.
Repair Checkout: Run the IBM PC Network Adapter
Checkout.
3-0020-42 Service Manual