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Field Service Procedure – Replacement PCU Kit, Coastal  

 

Page

 

7

 

of

 

9

 

 

Document No 

135553 Rev A

 

Copyright © Sea Tel, Inc 2012 - The information contained in this document is proprietary to Sea 
Tel, Inc.  This document may not be reproduced or distributed in any form without prior written 

consent of Sea Tel, Inc.  

 

 

 

4.

 

Using

 

a

 

2mm

 

flat

 

blade

 

screwdriver

 

disconnect

 

the

 

interface

 

harness

 

from

 

the

 

PCU.

 

 

 

5.

 

Now

 

using

 

a

 

#1

 

Phillips

 

screwdriver

 

remove

 

the

 

six

 

screws

 

securing

 

the

 

AZ,

 

EL

 

and

 

POL

 

motor

 

connections

 

to

 

the

 

PCU.

 

Be

 

careful

 

not

 

to

 

lose

 

the

 

6

 

split

 

washers

 

and

 

save

 

the

 

hardware

 

for

 

future

 

use.

 

 

 

6.

 

Using

 

a

 

#1

 

Phillips

 

screwdriver

 

remove

 

the

 

for

 

screws

 

securing

 

the

 

PCU

 

to

 

the

 

mounting

 

plate.

 

*Note:

 

Do

 

not

 

remove

 

the

 

PCU

 

at

 

this

 

time

 

as

 

the

 

coax

 

cables

 

are

 

still

 

connected.

 

 

 

7.

 

Raise

 

the

 

PCU

 

from

 

the

 

mounting

 

plate

 

to

 

allow

 

clearance

 

and

 

disconnect

 

the

 

two

 

coax

 

cables

 

from

 

the

 

PCU

 

using

 

a

 

7/16”

 

wench,

 

noting

 

the

 

orientation

 

of

 

the

 

RF

 

in

 

and

 

RF

 

out

 

cables.

   

 

 

8.

 

Apply

 

Loctite

 

242

 

to

 

the

 

four

 

holes

 

on

 

the

 

PCU

 

mounting

 

plate.

  

 

Summary of Contents for Coastal

Page 1: ......

Page 2: ...enna targets in elevation based on the vessels GPS position and desired satellite the azimuth axis then sweeps and searches for signal above threshold Once the NID for the desired satellite has been decoded tracking will be enabled The DVB receiver in the PCU takes a feed directly from the LNB to receive the satellite signal and will also decode the NID Network Identity from the carrier the antenn...

Page 3: ... search 2 To test elevation Tilt the radome base from front to back simulating the vessel pitching from bow to aft The antenna should remain pointed at the satellite without losing the signal and going into a search 3 To test the pol drive if applicable Tilt the radome base from side to side simulating the vessel rolling from starboard to port The LNB should move an equal amount to the movement ex...

Page 4: ...ill be displayed as the test runs An Error code 3 01 3 17 will be displayed if one of these tests fails A failure indicates a defective motor motor driver PCB or harness Temporarily connect a spare motor to the PCU in place of the failed motor or swap the azimuth motor with the pol motor connection at the PCU to isolate the failure to the PCU or motor Then rerun the same test If the test passes re...

Page 5: ...s If any test fails replace the PCU and rerun BIT tests 6 7 Azimuth Move Rate Sensor Test This test command moves the dish at various speeds in azimuth and checks the results using the azimutrh rate sensor Test AZ Sensor will be displayed as the test runs An Error code 7 01 7 05 will be displayed if one of these tests fails An error indicates a motor drive rate or sensor failure This could be due ...

Page 6: ...when pinched Re align and tension the motor and pot for correct belt path and tension If this check found a problem and you have corrected it re run the BIT tests 3 Rotate the polarization assembly to center of its mechanical range LNB vertical and observe while BIT test runs If the pol motor does not drive during the test replace the pol motor and re run the BIT tests If the polang potentiometer ...

Page 7: ... 16 Wrench Spanner Cable Ties Tie Wraps Loctite 242 7 2 Procedure Procedure for replacing the PCU assembly on the Coastal series antennas Sea Tel Kit part number 135912 PCU assembly part number 125517 3 Caution Power down the pedestal before following this procedure 1 Disconnect the BNC connector for the GPS antenna from the PCU 2 Snip the cable tie securing the GPS antenna cable coax cables and a...

Page 8: ... Phillips screwdriver remove the six screws securing the AZ EL and POL motor connections to the PCU Be careful not to lose the 6 split washers and save the hardware for future use 6 Using a 1 Phillips screwdriver remove the for screws securing the PCU to the mounting plate Note Do not remove the PCU at this time as the coax cables are still connected 7 Raise the PCU from the mounting plate to allo...

Page 9: ...adome base Note Older revisions of the Coastal PCU used a splitter to split the RF between the DVB receiver and below decks If replacing one of these PCU s with a later revision the coax which runs through the pedestal will need to be connected to the RF out port and another coax will need to be run from the LNB to the RF in port Sea Tel part number 127963 30YEL 10 Reinstall the four screws and wa...

Page 10: ...he antenna it s installed on Press and hold the save and down arrow button to enter into the setup menu Press the down arrow to scroll through the presets to the factory settings option and press the enter button Scroll through to the Model option and press the enter button Now use the up and down arrow keys to select the model of antenna and press the enter button Hold the save button to store th...

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