c. Power on the system.
d. If a reference code appears on the control panel, go to step 10 (See page 241).
e. If no reference code appears, repeat steps a through d of this step until you have checked all
devices disconnected previously.
f. Continue to perform the initial program load (IPL).
This
ends the procedure.
10.
Ensure that the following conditions are met:
v The workstation addresses of all workstations on the failing port must be correct.
Each workstation on the port must have a separate address, from 0 through 6. See the workstation
service information if you need help with checking addresses.
Did you find a problem with any of the above conditions?
v Yes: Continue with the next step.
v No: Go to step 12 (See page 241).
11.
Perform the following:
a. Correct the problem.
b. Select function 21 Make DST Available.
c. Check the console and any alternative consoles for a display.
Does a display appear on any of the consoles?
v No: Does the same reference code appear on the control panel?
– Yes: Continue with the next step.
– No: Go to “Starting point for all problems” on page 2 for this new problem.
This ends the procedure.
v
Yes: Continue to perform the IPL.
This ends the procedure.
12. Is the reference code one of the following?: 0001, 0003, 0004, 0005, 0006, 0101, 0103, 0104,
0105, 0106, 5004, 5082, B000, D010, or D023.
v No: Continue with the next step.
v Yes: Go to step 16 (See page 242).
13.
Does the system have an alternative console on a second workstation IOP?
v Yes: Continue with the next step.
v No: Go to step 15 (See page 242).
14. There is either a Licensed Internal Code problem, or there are two device failures on the workstation
IOPs, consoles, or cables. The console and any alternative consoles are the most probable causes
for this failure.
v See the service information for the failing display to attempt to correct the problem. If a display is
connected to the system by a link protocol converter, use the link protocol converter information to
attempt to correct the problem. The link protocol converter may be the failing item.
v If you have another working display, you can exchange the console and alternative consoles and
perform an IPL to attempt to correct the problem.
v Exchange the following parts one at a time until you determine the failing item:
a. Console
b. Alternative console
c. Cables
d. Workstation IOA for the console
e. The multi-adapter bridge. See symbolic FRU “MA_BRDG” on page 363.
This ends the procedure.
Analyze hardware problems 241