IBM 6151 Maintenance And Service Manual page 189

Step 13
You are here because the system is failing only when a diagnostic
checkout other than the System Checkout is run. The following
FRUs are required
to
select a checkout procedure:
• The system board
• The processor board
• If installed, the memory expansion option in slot C
• An adapter for the diskette drive
• An IBM High Capacity Diskette Drive
• A display adapter
• A display
• The cables for the diskette drive
• The power supply
• The cooling fan
• A keyboard.
When the FRUs listed above are installed, the following selections
display on the DIAGNOSTIC SELECTION menu:
• System Checkout
• Display Checkout
• Diskette Drive Checkout
• Checkout for the fixed-disk and diskette drive adapter
• Keyboard Checkout.
Step 13 continues on the next page.
(6/88) Problem Isolation Charts 3-0060-13