Technical data

4.5 Service Aids
The TSZ07 service aids provide the capability of configuring the drive, testing various FRUs,
and troubleshooting. There are three types of service aids:
Tape Unloaded Service Aids
Tape Loaded Service Aids
Special Service Aids
Section 4.5.1 describes how to select the service aids, and Section 4.5.2 through Section 4.5.4
describe the three types of service aids.
4.5.1 Selecting Service Aids
The service aids are selected from the front panel only when the drive is off line.
With the drive off line, the front panel switches take on the characteristics of a number
keypad with the numbers 1 through 5 assigned as shown in parenthesis in Figure 4–1.
Figure 4–1: Assigned Numbers of Control Panel Switches
The service aids are initiated by entering a six-digit code with the front panel switches. The
code sequence is 45XXX5, with the three X’s representing the code of the desired service aid.
As each digit is entered, it appears in the display.
The following steps describe how to access a service aid. Steps two through four must be
performed within three seconds, or the drive ignores the request to initiate a service aid.
1. Press the WRT EN/TEST switch (4).
2. Press the DENSITY/SELECT switch (5).
3. Press the three switches that represent the service aid to be executed. (For example: For
Service Aid 125, you would press the LOAD/REWIND switch (1), the UNLOAD switch
(2), and the DENSITY/SELECT switch (5).
Troubleshooting 4–9