888-2408-002 6-9
WARNING: Disconnect primary power prior to servicing.
Troubleshooting
6.7 Self Diagnostics
The Z Series transmitter is equipped with a set of TEST menus for testing various
internal systems. To access the TEST menus press [MORE, TEST]. This brings you
to the screen in Figure 6-4. This screen gives you 2 choices:
• SYSTEM TEST
• CONTROL HARDWARE
Figure 6-4 Diagnostic Test Menu
6.7.1 System Test
The purpose of the SYSTEM test is to check the combiner integrity, cabling and
configuration. The length of time required for the SYSTEM test will be indicated on
the display (about 8 minutes). The test will reduce the transmitter power to 40% of
nameplate TPO (2kW) and will be going through a MUTE cycle for each of the 16
PAs. The antenna VSWR must be 1.2:1 or less with no faults present in order to
run the test. If the VSWR is too high the test will be aborted. The abort screen will
read VSWR high, but nothing will be reported in the Fault Log. During the test the
HIGH ON and LOW ON buttons will not work. The test can be started at any time
and any power level above 50%. If a fault is detected during the test it will be
aborted and the fault will be noted in the Fault Log. Also the user can abort the test
at any time by pressing the OFF button or via the test screen on the Diagnostics
Display. The results of the test will be either Aborted, Failed or Passed. If the test
fails, check the Fault Log to find out why.
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