Home Satellite TV Antenna (160-2508) Aligning The Dish Faxback Doc. # 31430 To align the dish so that it properly tracks the satellite arc, you must find two satellites - one near the east or west end of the arc and one near the center of the arc. The actual satellites you need to find depend on what time zone you live in - we'll tell you which ones later. However, before you actually locate your first satellites, you must connect the rest of the satellite cable's wires to the receiver and set the east and west limits of the dish. CAUTIONS: Do not plug in the receiver or the TV until you have made and double-checked all connections. Do not make connections or attempt dish alignment in severe weather conditions. CONNECTING THE SATELLITE CABLE TO THE RECEIVER Connect the remaining satellite-cable wires to the receiver as follows. 1. Locate the section of the satellite cable that contains the red, white, and black wires. Attach the wires to the receiver's spring terminals as follows: Red Wire...............................+5 Terminal White Wire..........................PULSE Terminal Black Wire............................GND Terminal To connect a wire to a spring terminal, press the spring terminal's button and insert the end of the wire as far as possible into the terminal's hole. Then, release the button. 2. Attach the coaxial cable coming from the LNB on the dish to the receiver's HOR/C LNB terminal. Be sure to use the same cable that you connected to the LNB. NOTE: If you installed an optional dual C-band or C/Ku-band LNB, follow the instructions that came with it. Cable Connection Hints * The receiver's HOR/C LNB and VERT/Ku LNB terminals supply power to the LNBs (18 Volts DC, 0.5 amps). If you are not using a standard Radio Shack LNB and your LNB (or LNA) has different power requirements or has a separate power supply connect a DC block (Cat. No. 150-1259) to the receiver's LNB terminal(s) before you connect the coaxial cable. * Power from the receiver to the LNB is always on unless you unplug the receiver. Unplug the receiver's AC power cord before you connect or disconnect the LNB cable at either end. * The Radio Shack feedhorn uses the standard pulse polarity-switching system. Other feedhorns might not work with the SR-2014 satellite receiver. CONNECTING THE RECEIVER TO THE TV Using a 75-Ohm coaxial cable with F connectors on both ends, connect the receiver to the TV as follows: 1. Connect one end of the cable to the receiver's TV SET terminal. 2. Connect the other end of cable to the TV's VHF antenna terminal. If your TV has 300-Ohm screw terminals for VHF, use a 75-to-300 Ohm matching transformer to complete the connection. 3. Set the receiver's CH 3/4 switch and the TV to the same channel. SETTING THE RECEIVER'S EAST/WEST LIMITS Your Radio Shack Home Satellite System has two types of dish-motion limits to protect the dish and objects near the dish: Motor Limits - these limits are controlled by a preset cam shaft inside the motor housing. If you properly positioned the dish (using the hand crank) before you attached the motor, these limits will allow you to move the dish across the entire satellite arc. Receiver Limits - these limits are controlled by the SR-2014 Satellite Receiver. Normally, you should set these limits a little inside of the motor limits. If the location of dish does not allow it to track the complete satellite arc, however, you can also use the receiver limits to prevent the dish from striking an object such as a tree or fence. NOTE: Because the receiver's remote control provides the most direct control of the receiver, we suggest that you use it to set the east/west limits and to locate the satellites. 1. Plug in the satellite receiver and the TV, and turn them both on. SET EAST LIMIT flashes on the TV. 2. Press and hold down the TUNING < until the dish reaches the east motor limit. MOTOR ERROR momentarily appears on the TV. CAUTION: Do not allow the dish to strike any object, such as a fence or the ground. 3. Press TUNING > to move the dish 10 to 15 counts west of the east limit. 4. Using the receiver's supplied adjustment tool, press the remote control's recessed STORE button. The east limit is stored and SET WEST LIMIT flashes on the TV. 5. Press and hold down the TUNING > until the dish reaches the west motor limit. MOTOR ERROR momentarily appears on the TV. 6. Press the remote control's recessed STORE button. The west limit is stored. Proceed to "Finding You First Satellite," below. FINDING YOUR FIRST SATELLITE Follow the instructions exactly to find you first satellite. The first satellite you must find depends on what time zone you live in. * If you live in the Eastern or Central time zone, find either F1 or G1 first (on the west end of the arc). * If you live in the Mountain or Pacific time zone, find F2 or F4 first (on the east end of the arc). Do not use a satellite that has a look angle of less than 10 degrees. 1. If necessary, turn on the receiver and TV, and set the TV to the same channel as the receiver's CH 3/4 switch. 2. If DISH and the dish's four-digit location number does not appear on the TV, press TUNING SELECT on the remote control until it does appear. 3. Press SAT (SAT appears on the TV) and enter the letter-number code for your first satellite - G1 for example. The receiver automatically selects a default channel for that satellite. Be sure to consult a current satellite guide to be sure this channel is active. 4. Find the correct look angle of the satellite on your alignment data printout, and use the TUNING < and > buttons to move the dish until the inclinometer indicates that angle. Be sure the inclinometer's pointer swings freely to assures an accurate reading. NOTE: For the Eastern/Central time zones, you should move the dish west of true south (F1 or G1). For the Mountain/Pacific times zone, you should move the dish east of true south (F2 or F4). At this point, you might see a picture, but don't worry if you don't Loosen the bolts on the mount sleeve and move the entire dish/mount assembly a few degrees in each direction until you receive the best possible picture. If you do not see a picture at this point, do the following: * Be sure you connected the same coaxial cable to the LNB and the receiver. * Confirm the proper settings of the declination and inclination angles. See Faxback Doc. # 31424, "Setting the Declination Angle" and Faxback Doc. # 31428, "Setting the Inclination Angle." * Confirm the dish is at the correct look-angle reading for the satellite you are trying to find. * Check to be sure the dish pole is still level. 5. Retighten the mount-sleeve bolts. 6. Press STORE. The receiver automatically fine tunes the polarity and dish-position setting, and stores the satellite's position in memory. (This takes about 30 seconds.) Now, it's time to locate your second satellite and further fine tune the dish alignment. FINDING YOUR SECOND SATELLITE The second satellite you find should be near the center of the satellite arc - this satellite will have the highest look angle on your alignment data printout. Then, determine which side of the true south the satellite is on as follows: * If the satellite's azimuth angle is greater than 180 degrees, the satellite is west of true south. * If the azimuth angle is less than 180 degrees, the satellite is east of true south. 1. If DISH and the dish's four-digit location number does not appear on the TV, press TUNING SELECT on the remote control until it does appear. 2. Press SAT (SAT appears on the TV) and enter the letter/number code for your second satellite. The receiver automatically selects a default channel for that satellite. Be sure to consult a current satellite guide to be sure this channel is active. 3. Find the correct look angle of the satellite on your alignment data printout, and use the TUNING < and> buttons to move the dish until the inclinometer indicates that angle, and the dish is on the correct side of true south. NOTE: The dish should be pointing exactly true south when the worm- gear cover's alignment mark lines up with the mark at the center of the rack gear plate. 4. If you do not see a picture at this point or if the picture quality is poor, use the TUNING < and > buttons to get the best possible picture. 5. Adjust the turnbuckle to further fine tune the picture (and inclination angle). CAUTION: The inclination bolts should already be loose at this point, but be sure they are before you try to adjust the turnbuckle. 6. Repeat Steps 4 and 5 as necessary for the best possible picture. 7. Press STORE. The receiver automatically fine tunes the polarity and dish-position setting, and stores the satellite's position in memory. FINE TUNING THE DISH ALIGNMENT The adjustments you made to the dish alignment to fine tune the reception of the second satellite might have changed the alignment for the first satellite. This procedure assures the best alignment for both satellites and the entire satellite arc. 1. Press SAT and enter the letter/number code for the first satellite. The receiver automatically moves the dish back to the first satellite. 2. Loosen the mount-sleeve bolts and move the dish assembly to fine tune the picture. 3. Press TUNING SELECT so until DISH and the dish-location number appears. 4. Press STORE and let the receiver make its automatic adjustments. 5. Repeat Steps 2 and 4 for the best picture quality. 6. Press SAT and enter the second satellite's letter/number code. The receiver automatically moves the dish to the second satellite. 7. Press TUNING SELECT so until DISH and the dish-location number appears. 8. Repeat the turnbuckle adjustment to assure best reception. Then, press STORE to store any new setting. Repeat the procedure on this page until you are sure you are getting the best possible reception. GROUNDING YOUR DISH Proper grounding of your satellite dish is essential to protect your investment from damage caused by the build up of static electricity. When the dish is properly grounded, possibly dangerous static electricity is sent harmlessly into the ground. The steel rods you set in cement do not provide grounding protection because the cement insulates the rods from the ground. The following are general hints and grounding tips. Your local building inspector can provide you with specific information about proper grounding and grounding codes in your area. * Use 8-gauge, or larger, copper or aluminum wire to connect one of the base bolts to a grounding rod. * Use a grounding rod that meets the requirements for your city, county, or state. * Make the wire between the base and the rod as straight and short as possible. * Use more that one grounding rod to add extra protection. TORQUE TABLE The following information tells you exactly how to tighten the crucial dish bolts. Please be sure to note that some measurements are in foot/pounds and other are in inch/pounds. Worm-Gear Bolts.....................................20-25 ft/lbs (holding the worm gear to the worm-gear block) Worm-Block Bolts....................................18-24 ft/lbs (holding the worm-block to the mount) Declination Adjustment..............................10-14 ft/lbs Large Bearing Bolts.................................65-75 ft/lbs (as in the center of the declination adjustment plate) Rack Gear Bolts.....................................50-70 Inch lbs Inclination Adjustment..............................30-50 ft/lbs Lower Turnbuckle Bolt...............................25-30 ft/lbs Upper Turnbuckle Bolt...............................30-50 ft/lbs Tighten all other hardware securely without over-tightening or damaging the hardware. (CS 3/19/96)