IBM RT PC 10 Hardware Maintenance And Service page 148

Step 4
1. Look at the type and slot positions you recorded, and install the boards
and adapters you removed.
2. Set the power switch on the system unit to Off.
3. Do the "Top Cover Replacement" on page 4-13.
4. Set the power switch on the system unit to On.
5. Follow the instructions on the menus to run the System Checkout. If
needed, see page 2-15.
Note: If the problem still occurs, exchange the display.
This completes the repair.
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Problem Isolation Charts 3-103