Troubleshooting A Loading Failure - Nortel DMS-100 Series Maintenance Manual

12-4 Advanced troubleshooting procedures

Troubleshooting a loading failure

The steps for troubleshooting a failure to load the peripheral program files for
the OPM are as follows:
1. Verify that no blown fuses are present. Verify that the power converters
2. Unseat the following cards:
3. Attempt to load unit 0.
4. If unit 0 fails to load, reseat the cards removed for unit 1. Unseat the
5. If both units fail to load, attempt to load the PM from another device.
6. Replace the 6X51, 6X52, and 6X53 cards in unit 0 and unseat the same
7. If unit 0 fails, replace the 6X51, 6X52, and 6X53 cards in unit 1 and unseat
8. If both units fail to load, replace the 6X73 (slot 17 of HIE shelf). Replace
297-8361-550 Standard 04.01 September 2000
DANGER
Possible service interruption
Use caution when you use PMDEBUG on a peripheral that
functions. Use only the commands shown.
are powered-up and supply the correct voltages.
• 6X51, 6X52, 6X53 from unit 1
• 6X50 (slot 20 of HIE shelf)
• 6X73 (slot 18 of HIE shelf)
• 2X70 (slot 22 of the HIE shelf)
following cards:
• 6X51, 6X52, 6X53 from unit 0
• 6X50 (slot 19 of HIE shelf)
• 6X73 (slot 17 of HIE shelf)
• 2X70 (slot 25 of the HIE shelf)
Attempt to load unit 1.
Attempt to load the PM from the following devices in the order listed:
• the input/output controller (IOC) disk drive
• the system load module (SLM)
• the original PMLOAD tape
cards in unit 1. Attempt to load unit 0.
the same cards in unit 0. Attempt to load unit 1.
the 6X50 (slot 19 of HIE shelf) cards. Attempt to load unit 0.