Equipment Alarms - Hitachi E-Compact Medium Power Series Operation Manual

Uhf digital tv transmitters
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EQUIPMENT ALARMS

ALARM
+15V Control Module Failure
+3.3V Control Module Failure
+28V Control Module Failure
+5V Control Module Failure
+15V Equipment Failure
+50V Equipment Failure
+8V Equipment Failure
ALARM
AC Failure
Drawer Comm.
Failure
Drawers Alarms
Equipment Info Error
Exciter Failure
Other Control Module
Failure
DESCRIPTION
Indicates failure in any of the Control Module Sources
(+15V, +3,3V, +28V +5V).
The sources that are inside the Control Module.
Indicates failure in any of the Equipment Sources (+15V,
+50V, +8V).
The sources that are at the rack bottom.
ALARM DESCRIPTION
There is no communication between the power drawers.
Check the RS485 cable connections in the rear panel of the excitation
drawer and power drawers. Check the internal interconnections of
connectors. Get in contact with Hitachi Kokusai Linear's technical support
service. Check the power drawers for proper operation using the
HyperTerminal.
Failure in any of the Power Drawers.
Indicates lack of information for the selected ID.
and thus impact the transmitter's operation 1PPS or 10MHz reference
OR Wrong EQP ID.
Indicates transmitter exciter failure and prompts excitation exchange
between Main and Backup (if was available).
Indicates failure in the communication between Control Modules A and B
(if was available).
E-Compact Medium Power
39 | 106

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