Uy1Z1; Uy1Z2; Uy1Z3; Uy1Z4 - IBM iSeries Series Hardware Problem Analysis And Isolation

UY1Z1

For use by authorized service providers.
Cable problems:
See the IBM Technical Information Manual for information on how to correct cabling problems. Problems
that are associated with noise can cause a workstation to fail or lose communication with the system for
various lengths of time. A motor or any device that is a source of electrical radiation can cause noise or
electrical interference. The following are common causes for noise problems:
v Cables that are located near a source of electrical interference.
v Cables that are loose, damaged, or not correctly connected

UY1Z2

For use by authorized service providers.
This error occurs if you attempted to activate more workstations than the amount allowed.
Perform one of the following to correct the problem:
v Turn off the power for the workstation that caused the error, or connect the workstation to a different
controller.
v Turn off the power for a different workstation that is connected to the same workstation controller.
See the local workstation diagrams for the physical location of workstations.
This ends the procedure.

UY1Z3

For use by authorized service providers.
This error is caused by a workstation that is connected to the port.
1. Perform the following:
a. Turn off the power for one workstation on the port
b. Check if the other workstations operate correctly.
c. Repeat this for each workstation on the port.
d. The workstation that causes the problem is the one that is turned off when the others are working
correctly.
e. If you did not find the problem, continue with the next step.
2. Perform the following:
a. Turn off the power for all workstations on the port.
b. Then, turn on one workstation to check if it works when all other workstations are turned off.
c. Repeat this for each workstation on the port. The workstation that causes the problem is the one
that works when all other workstations are turned off.
This ends the procedure.

UY1Z4

For use by authorized service providers.
An error occurred with the pass-through command between the workstation controller and the workstation.
A failure in the Licensed Internal Code in the workstation or the Licensed Internal Code in the workstation
controller causes this type of error.

UY1Z5

For use by authorized service providers.
478
iSeries: iSeries Server 270, 800, 810, 820, 825, 830, 840, 870, 890, SB2, and SB3 Hardware Problem Analysis and
Isolation