SR-2015 Home Satellite Television System Receiver
(160-2513)                 Installation, VideoCipher  Faxback Doc. # 34199

INSTALLING A VideoCipher MODULE

Follow these steps to install a VideoCipher module:

1.  Remove the two screws from the module compartment cover, and lift off
    the cover.

2.  Slide the module into its compartment until it snaps into place.

3.  Replace the compartment cover and screws.

SR-2015 COMPATIBILITY FEATURES

Your Radio Shack SR-2015 Satellite Receiver is specifically designed for
optimum performance when used with the complete Radio Shack 5-foot
Satellite Dish System.  However, we have included optional features that
make your receiver compatible with other types of satellite systems.

POLARITY SERVO-MOTOR CONTROL

The GND, PULSE, and 6VDC terminals on the back of the receiver are intended
for use with feedhorns that use a servo-motor to select the polarity.

The SR-2015's smart circuitry prolongs the life of the servo-motor by
limiting the distance the probe can travel.

If the proper polarity is not indicated (odd channels vertical on a Telstar
satellite or odd channels horizontal on a Galaxy satellite), press POL on
the remote control to select the proper polarity.

SKEW ADJUSTMENT

The skew adjustment is related to servo-motor polarity devices.  Skew is
the fine tuning of the polarity setting.  If the picture is recognizable
but snowy, adjusting the skew might improve reception.

NOTE:  If the picture is recognizable for just a moment when you change
       channels, you have probably chosen the wrong polarity (horizontal or
       vertical).

VERTICAL/HORIZONTAL AND C-/Ku-BAND SWITCHING

Dual LNBs for a single band (C or Ku) are used with multiple satellite
receivers to allow selection among all the channels from a particular
satellite.  If you have dual C-band LNBs and two or more satellite
receivers, each satellite receiver has access to all 24-channels from the
current satellite.  With a single LNB, each receiver has access to only 12
channels (odd or even).

The SR-2015's V/H C/Ku terminal can control an external switch that selects
the channel from one LNB or the other.

Or, if you install a C-band LNB and a Ku-band LNB, you can use this same
terminal to select between bands.

The function of the terminal (horizontal/vertical or C/Ku) is controlled by
the setting of the V/H C/Ku switch.

For either type of switching, you should select an external switch that is
controlled by switching between 0-volts DC and 12-volts DC.

EXTERNAL DESCRAMBLERS

The COMP OUT jack and the DEEMP/FLAT switch allow you to connect external
descramblers to the SR-2015.  Read the descrambler installation manual for
detailed instructions.

EXTERNAL VideoPal MODULES

If you have an older VideoCipher module and want to access VideoPal
services, you might have to use an external VideoPal module.

The SR-2015's IPPV jack provides a connection for such a module.

EXTERNAL DATA DEVICES

The DATA jack allows you to connect special data equipment.  Contact your
local Radio Shack store for more information.

MULTI-LNB SATELLITE SYSTEMS

The drawings on Faxback Doc. # 34206 show typical multi-LNB satellite
systems.  The first system, (see Fig. A) has one C-band LNB and one Ku-band
LNB.

The second drawing, (see Fig. B) shows a system with two C-band (or two Ku-
band) LNBs.  For more information, contact your local Radio Shack store.


(BR/EB 7/25/96)