Harris Broadcast Flexiva FAX 5KW, Техническое руководство

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Section-3 Operation
October 28, 2013
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Copyright ©2013, Harris Broadcast WARNING: Disconnect primary power prior to servicing. 888 ‐ 2720 ‐ 001
Figure 3-5 Front Panel LCD Display Controller after Pressing ON
3.4.1 ON/OFF Operation
To turn the transmitter ON from the front panel press the Green ON button. The following should occur:
•
Green ON button LED should illuminate
•
Power supply internal fans turn on
•
Fans on rear door of each power block should turn on
•
Exciter should un ‐ mute
•
RF should ramp up from 0 watts to TPO
To turn the transmitter OFF from the front panel press the Red OFF button. The following should occur:
•
Red OFF button LED should illuminate
•
Power supply fans turn off
•
Fans on rear door of each power block should turn off
•
Exciter should mute
•
RF should ramp down from TPO to 0 watts
3.4.2 Power Raise/Lower Procedure
To raise or lower power, press and hold the RAISE or LOWER button until the desired power level is reached.
Note
Small time delay: When pressing the RAISE or LOWER buttons, a small delay occurs before the transmit-
ter power actually changes. The same is true when releasing the RAISE or LOWER button. The output
power will continue to change momentarily upon release. This is normal. The control circuits are scan-
ning all of the critical functions and parameters of the transmitter to protect it from an overload. This cre-
ates the slight delay. When setting the power out to a very specific level, release the buttons before the
desired power level is reached. Then give short momentary presses to nudge the power to the exact level
desired.
3.4.3 Remote Enable/Disable Buttons
Pressing the Remote Enable button allows the transmitter to be controlled by a customer provided remote control
system from off ‐ site. When using the GUI or SNMP via Rear Ethernet port, no changes can be made unless the
Remote is ENABLED.
The front panel Ethernet port and LCD menus are considered a Local port on the transmitter, therefore the Remote
must be Disabled for changes to made made. This port should never be connected to a network, it is a DHCP server.