User's Manual

Innovator CHV400BTD ATSC Transmitter Unpacking and Installation
Technical Manual, Rev. 0 13
AC Input Connections
The CHV200B single tray systems will operate with an input voltage of 185-253VAC. The
customer should provide a single point disconnect for the main AC input connection to the
transmitter. Check that the AC switch, located on the rear of the tray above the AC power
jack, is OFF. Connect the AC power cord supplied with the tray from J6 on the rear of the
tray to the AC source. If your system has the optional ASI to S310 Converter, check that it
is connected to the AC source.
If your system is a CHV400B or CHV500B, it also contains one amplifier tray. In CHV1000
and higher power systems, multiple amplifier trays are included. Each amplifier tray is
configured for 230 VAC operation only. Check that the ON/OFF circuit breaker or circuit
breakers in the amplifier, located on the rear panel on either side of the AC power jack, are
OFF. Connect the AC power cord supplied with the tray from J10 on the rear of the tray to
the 230 VAC source. Refer to Table 1 for the typical voltage and current requirements for
CHVB Systems.
If the system is mounted in a rack, an AC distribution box wired to a quad receptacle box is
used to connect the AC to the individual trays. The AC distribution box is mounted on the
upper right side of the rack accessed through the back of the rack. The main AC input for a
CHXBTD transmitter is, 195-235VAC, at least 10Amps, 50/60Hz. The customer should
provide a single point disconnect for the main AC input that connects to the transmitter. The
AC input lines connect inside the AC distribution box by first removing the two screws that
hold the cover plate to the front of the AC distribution box. Then connect the three wire main
AC input to the input lugs, L1 to L1, L2 to L2 and Ground to Ground. The power amplifier tray
and the quad receptacle box connect through AC power cords directly to the AC distribution
box. The AC power to the optional receiver tray and the exciter/driver tray are connected
through AC power cords that plug into the quad receptacle box.
If the system is mounted in a cabinet, an AC distribution panel is supplied to connect the AC
to the individual trays. The AC distribution panel is mounted facing the rear of the cabinet
and accessed through the back of the cabinet. The main AC input for a CHV1000BTD
transmitter is, 195-235VAC, at least 30Amps, 50/60Hz. The customer should provide a single
point disconnect for the main AC input that connects to the transmitter. The AC input lines
connect to the AC distribution panel by first removing the four #8 screws that hold the cover
plate to the front of the AC distribution panel. Then connect the three wire main AC input to
the input lugs located at the top left of the AC distribution panel, L1 to L1, L2 to L2 and
Ground to the Ground lug on the left. The AC distribution panel in a CHV1000BTD has three
circuit breakers that distribute the AC to the individual trays, which are the Exciter and the
two power amplifier trays. The circuit breakers, which are accessed through the rear door of
the cabinet, supply the AC though AC line cords, that connect to the AC input jacks mounted
on the rear panels of the trays. CB1 is a 30 Amp circuit breaker which supplies the AC to the
(A2), top, Power Amplifier A tray. CB2 is a 30 Amp circuit breaker which supplies the AC to
the (A3), bottom, Power Amplifier B tray. CB3 is a 10 Amp circuit breaker which supplies the
AC to the (A1) Exciter/Driver tray. A maximum of four 30 Amp circuit breakers for four
amplifier trays and two 10 Amp circuit breakers for two Exciter/Driver trays can be installed in
the AC Distribution Panel.
Table 1: CXB Series Digital Systems Typical AC Input and Current Requirements.
System O/P Power
Power
Consumption
Voltage Current
CHV200B 200 Watts 1000 Watts 230 VAC 4.4 Amps to the Cabinet
CHV400B 400 Watts 2200 Watts 230 VAC 9.6 Amps to the Cabinet
CHV500B 500 Watts 2700 Watts 230 VAC 11.8 Amps to the Cabinet