UHF Analog Driver/Transmitter/
Chapter 3, Site Considerations,
Translator
Installation and Setup Procedures
LX Series, Rev. 3
3-7
NOTES: The transmitter is factory set
for either 110 VAC or 220 VAC
operation as directed by customer.
Transmitters 250 Watts and above
use 220 VAC Input only.
Transmitters 4000 Watts and above
require two 220 VAC Inputs, one to
each cabinet.
All currents are with a Black picture.
The AC Input to the high power
transmitter connects to the terminal
block mounted in the AC input box
located toward the rear, right side near
the top of the cabinet. Connect the AC
Input Line 1 to Line 1 on the terminal
block, the AC Input Line 2 to Line 2 on
the terminal block and the AC Input
Ground to Ground on the terminal block.
Figure 3-3: AC Input Box Assembly
NOTE: When the AC power cord for
the exciter/amplifier chassis is
plugged in, or the AC is connected to
the AC input box, the AC is always
connected to the transmitter
.
This completes the unpacking and
installation of the LX Series UHF
television transmitter. Refer to the setup
and operation procedures that follow
before applying power to the transmitter.
3.5 Setup and Operation
Initially, the transmitter should be turned
on with the RF output at the Trap Filter
terminated into a dummy load of at least
the power rating of the transmitter. If a
load is not available, check that the
output of the trap filter is connected to
the antenna for your system.
3.5.1 Input Connections
The input connections to the transmitter
or translator are to the rear of the
Chassis Assembly.
NOTE:
In dual exciter
systems input connections must be made
to the rear of both exciters.
Refer to the table and description that
follows for detailed information on the
input connections.
NOTE
: If both the Receiver and
Modulator are present in your system
the Modulated IF output from the
Receiver or Modulator must be selected.
This is accomplished by connecting a low
or removing the low to TB31-Pin 3
located on the rear of the exciter/driver
assembly. By connecting the low, the
Modulator IF output is used by the IF
Processor module. By removing the low,
the IF from the internal or external
Receiver is used. (
NOTE:
The IF
Processor board must be configured for
external switching by placing jumper
W11 on J29 between pins 1 & 2).
Содержание INNOVATOR
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Страница 102: ...APPENDIX B DRAWINGS AND PARTS LISTS...
Страница 105: ...APPENDIX C TRANSMITTER LOG SHEET...
