Manhattan Plaza UPM Bedienerhandbuch PDF herunterladen (Seite 35)

A.2 Technical Specifications

1. Tuner & Demodulator

Parameter Specifications

Input Frequency

Range

950 MHz to 2150 MHz

RF Input Signal Level -25 to –65 dBm

RF Impedance 75œ

IF Bandwidth 55 MHz/8 MHz (under 5 Msps)

LNB Power 13/18 VDC, 14/19 VDC +/- 5%, 0.5A max, 0.8A peak

overload protected

No front panel display The power cord is not

plugged in.

Check power switch on back

panel is turned on.

Wrong connection of the

Audio/Video outputs of the

receiver to TV.

Ensure TV is tuned or

switched to correct input.

Wrong connection of the

antenna.

Check LNB connections are

not shorting.

No or Bad signal message

appears.

Check other device

connected between Antenna

and the receiver, or adjust

the antenna position.

No picture or sound

Audio muting Press the MUTE button

No or poor signal. Check antenna cable or

connect it to the receiver

securely.

No picture

Incorrect settings of some

tuner parameters.

Set the values of tuner

parameters correctly. Refer to

the Installation menu.

The UHF Antenna is not

optimized.

Adjust the antenna.

Signal too strong. Connect a signal attenuator

to the input.

No or bad UHF signal

UHF Antenna is too small. Change to a larger antenna.

Remote control does not

operate

Remote control batteries

are exhausted or not

inserted.

Check batteries are inserted

correctly. Replace leaky or

used batteries.

Poor picture quality

Less channels in scan

Cable has signal or power

loss.

Change the LNB power in

Dish menu. Check cable.

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