IBM R30 Operator's Manual page 206

Step 18
(From Step 17)
The following steps analyze a failure to load the diagnostic programs from a disk, or a failure
to determine whether the diagnostic programs are on a disk.
1. Set the power switch on the system unit to Off.
2. Set the key mode switch to the Service position.
3. Insert the diagnostic CD-ROM disc into the CD-ROM drive.
4. Set the power switch on the system unit to On.
5. If c31 is displayed, follow the displayed instructions to select the console display. If no
console display is available, set the key mode switch to the Normal position, and then set
it to the Service position to indicate to the diagnostics that there is no console display.
If you cannot select a console display, go to Step 20. Otherwise, continue to the next
substep.
6. Wait until one of the following conditions occur; then, go to the next substep:
The system stops with two or more numbers between 221 and 296 alternating in the
operator panel display.
The same number is displayed in the operator panel display for longer than three
minutes, and the power-on light is on.
The number 888 is flashing in the operator panel display.
The operator panel display is blank.
The words DIAGNOSTIC OPERATING INSTRUCTIONS are displayed.
11-12
Operator Guide