IBM RT PC 10 Hardware Maintenance And Service page 104

Step 36
This step is for flashing numbers only.
Find the number displayed in the two-digit display in the following table.
Number Go to Step
02 "Step 37" on page 3-60
30 "Step 37" on page 3-60
99
"Step 38" on page 3-60
DID YOU FIND THE NUMBER IN THE TABLE?
YES Go to the step listed.
NO
Go to "Step 38" on page 3-60.
Problem Isolation Charts 3-59