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Setting up the television
7
Combination VHF/UHF antenna (separate VHF
and UHF 300 ohm twin-lead wires)
Connecting a combination VHF/UHL antenna with separate wires:
1 Connect the UHF 300 ohm twin-lead wire to the combiner (not
supplied).
2 Connect the VHF 300 ohm twin-lead wire to the 300-75 ohm
matching transformer.
3 Attach the transformer to the combiner, then attach the combiner
to the RF IN jack.
Separate VHF/UHF antennas (75 ohm VHF cable
and 300 ohm UHF twin-lead wires)
Connecting separate VHF/UHL antennas:
1 Connect the VHF 75 ohm cable and UHF 300 ohm twin-lead wire
to the combiner.
2 Attach the combiner to the RF IN jack.
Connecting to cable television
This television has an extended tuning range and can tune most cable
channels without using a cable television converter box. Some cable
television companies offer premium pay channels in which the signal is
scrambled. Descrambling these signals for normal viewing requires the
use of a descrambler device which is generally provided by the cable
television company.
For subscribers to basic cable television service
For basic cable service not requiring a converter/descrambler box,
connect the 75 ohm coaxial cable directly to the RF IN jack on the back of
the television.
For subscribers to scrambled cable television
service
Connecting the TV to cable television:
1 If you subscribe to a cable television service which requires the use
of a converter/descrambler box, connect the incoming 75 ohm
coaxial cable to the converter/descrambler box.
2 Using another 75 ohm coaxial cable, connect the output jack of
the converter/descrambler box to the RF IN jack on the television.
Follow the connections shown above.
3 Set the television to the output channel of the converter/
descrambler box (usually channel 3 or 4) and use the converter/
descrambler box to select channels.
For subscribers to unscrambled basic cable
television service with scrambled premium
channels
If you subscribe to a cable television service in which basic channels are
unscrambled and premium channels require the use of a converter/
descrambler box, you may wish to use a signal splitter and an A/B switch
box (available from the cable television company or an electronics supply
store). Follow the connections shown above.
With the switch in the B position, you can directly tune any
nonscrambled channels on your television. With the switch in the A
position, tune your television to the output of the converter/descrambler
box (usually channel 3 or 4) and use the converter/descrambler box to
tune scrambled channels.
RF IN jack
300-75 ohm
matching
transformer
UHF 300 ohm
VHF 300 ohm
Combiner
RF IN jack
VHF 75 ohm
UHF 300 ohm
Combiner
RF IN jack
75 ohm coaxial
cable
RF IN jack
75 ohm
cable to TV
Incoming 75 ohm
cable TV cable
Converter/Descrambler
Incoming 75 ohm
cable TV cable
75 ohm
cable to TV
RF IN jack
Converter/
Descrambler
Splitter
A/B Switch