3-6 888-2595-001 12/20/11
WARNING: Disconnect primary power prior to servicing.
Section 3 Operation
ZX Series
3.2.3 Internal LEDs
In addition to the alarm LEDs on the controller board, there are other LEDs inside the
amplifier chassis that are useful in determining the operational status of the transmitter.
Figure 3-3 LEDs inside amplifier chassis
Table 3-3 LEDs inside amplifier chassis
Item Description
AC>90V PS module AC OK LED
Indicates that the PS module is receiving AC mains power with a
voltage above 90V. This is enough to power the internal +5V
transmitter logic, but may not be enough to power the RF amplifier
portion (>190V).
PS(PA)ON PS module DC OK LED
Indicates that the particular PS module is switched on and supplying
+50V to the corresponding PA module. Consult the numbering of the
PA and PS modules on the left to determine the correct
correspondence between PA and PS modules.
PS FAULT PS module fault LED
Indicates that the particular PS module has suffered an internal failure
and must be replaced.
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