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Summary of Contents for USAT

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Page 2: ...lookup table in the DAC If the system is unable to drive the pol motor to obtain the correct feedback or if the pot has failed and won t give the correct feedback the antenna can t complete the target process and the antenna will stay in this position Setting the pol type to 0009 will make the antenna target by removing the auto pol function from the targeting process however the miss alignment of...

Page 3: ...eaches its end stop Now measure the resistance between the slider and the counter clockwise contact grey cable pin 2 and the red cable pin 3 The feedback should be approximately 5k ohms Now slowly rotate the shaft of the pot counter clockwise the reading should count down sequentially After one and a half turns the pot will be in the center of its range giving a resistance of approximately 2 5k oh...

Page 4: ...eflector harness connector from the pol pot connection and then compress the retaining clips to remove the pol pot connector from its mounting bracket 2 Locate the pol pot on the feed assembly and remove it using a 9 64 Allen wrench The pot is secured via a single screw washer and star washer save the hardware for future use 3 Now using the parts supplied in the kit build up the replacement pol po...

Page 5: ...ible if there is a large amount of error in the pot alignment 6 Install the replacement pot assembly onto the feed by looping the pulley through the belt Then install the flat washer followed by the star washer onto the retaining screw and apply Loctite 242 to the thread Pull down on the assembly to tension the belt and tighten the retaining screw Note Additional mounting hardware is provided in t...

Page 6: ...ton again to display the Pol Offset window Verify the pol offset is set to 0030 if not press the arrow key to activate the window Now use the and arrow keys to scroll the cursor along and use the and arrow keys to change the characters to 0030 and press the button 4 Now press the button again to display the Pol Scale window Verify the pol scale is set to 0090 if not press the arrow key to activate...

Page 7: ...alue Enter g0130 g0135 g0137 and so on into the remote command screen until the LNB is aligned horizontally Should the LNB be over to the right of center and needs to be driven counter clockwise to bring it to horizontal decrease the pol value Enter g0110 g0105 g0103 and so on into the remote command screen until the LNB is aligned horizontally 8 Once the LNB has been aligned horizontally as per F...

Page 8: ...screen of the DAC This will drive the feed assembly to its upper electronic end stop set by the potentiometer Once the pol motor has finished driving the LNB should be vertical to the right of the OMT with the coax cable pointing upwards as shown below in Fig 1 5 Fig 1 4 Fig 1 5 12 Set the Pol Type to automatic auto pol Press and hold the arrow keys together until the EL Trim or Auto Trim window i...

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