IBM RT PC 10 Hardware Maintenance And Service page 61

Step 12
3-16 Service Manual
Look at the SRN. If needed, see page 2-18.
4. Write the Service Request Number here:
Ib - 982- _ _
IS THE PROCEDURE NUMBER A "6"?
NO The SRN is invalid. Go to "Problem Determination Procedure"
on page 3-22.
YES Go to "Step 15" on page 3-19.