IBM System/36 Maintenance Information Manual page 19

Procedure 122
1. Power off the 5363.
2. Ensure that the connectors on the twinaxial cables between the system port and the work stations are
tight and that the cables are correctly installed (not made into a coil or hung on the wall) ("714 Local
Work Station Cable Ohmmeter Test" on page 7-15) and ("710 Local Work Station Cable Signal Quality
Check" on page 7-3).
3. Ensure that the work stations are grounded to a service ground ("706 Local Work Station Network
Analysis Procedure" on page 7-2).
4. If you have found and corrected a problem, this procedure is complete.
If not, go to "Procedure 120" on page 1-4.
Procedure 123
Load the system from diskette 61:
1. Select function 3 (IPL Diagnostic Diskette).
2. Enter FC03.
3. Press the Start Function key.
4. Run the test for 10 minutes.
If an SRC is displayed, exchange the FRU indicated and then run SYSTEST for 10 minutes to verify any
exchanged FRU ("328 Service Procedures under SSP" on page 3-10).
If not, go to "Procedure 120" on page 1-4.
Procedure 124
1. Run COMMTEST ("328 Service Procedures under SSP" on page 3-10) and follow the recommended
actions displayed.
2. Ensure that all external modems are connected to a service ground.
3. If the problem is repaired, this procedure is complete.
If not, go to "Procedure 120" on page 1-4.
Procedure 125
1.
Power off the 5363.
2. Reseat the tape adapter feature card located in the Bl board.
a. Tape adapter cable at Bl-F see "Bl Board (Feature Machines)" on page 2-11.
b. Tape unit cable at the tape adapter connector.
3. Load the system from disk.
4. Power on the 5363.
a. Select function 1 (IPL).
b. Enter 0000.
c. Press the Start Function key.
Section 1. System Entry and FRU Isolation Procedures
1-7