User's Manual
Table Of Contents
- KH1264 ISSUE 1
- CHAPTER 1
- CHAPTER 2
- CHAPTER 3
- CONTENTS
- ILLUSTRATIONS
- Figure 1 - Transceiver (DTX-A3): Module Locations 34
- Figure 2 - Drive Control Unit (GTX-A24): Module Locations 35
- Figure 3 X-band Upmast Transceiver (DTX-A3): Functional Diagram Figure 3 38
- Figure 4 X-band Upmast Transceiver (DTX-A3): Interconnection Diagram Figure 4 39
- Figure 5 - Drive Control Unit (GTX-A24): Block Diagram 319
- CHAPTER 4
- CONTENTS
- TABLES
- ILLUSTRATIONS
- Figure 1 - Transceiver (DTX-A3): Installation Dimensions 49
- Figure 2 - Transceiver (DTX-A3): Mast Mounting 410
- Figure 3 - Transceiver (DTX-A3): Fitting Kit 411
- Figure 4 - Suggested Antenna Lifting Arrangement 412
- Figure 5 - Drive Control Unit (GTX-A24): Installation Dimensions 413
- Figure 6 - Mains Isolator: Installation Dimensions 414
- Figure 7 - Transceiver (DTX-A3): Cableform Routing 419
- Figure 8 - Drive Control Unit (GTX-A24): Cableform Routing 420
- Figure 9 - Cable Gland: Assembly 421
- Figure 10 - Transceiver (DTX-A3): External Connections 423
- CHAPTER 5
- CHAPTER 6
- CONTENTS
- INTRODUCTION 63
- PLANNED MAINTENANCE 63
- DIAGNOSTIC MAINTENANCE 64
- CORRECTIVE MAINTENANCE 611
- TRANSCEIVER (DTX-A3) 612
- Access 612
- Removal of Rotating Joint (45-750-0034-001) 612
- Replacement of Rotating Joint (45-750-0034-001) 613
- Removal of Gearbox and Motor (55-100-0273-001) 613
- Replacement of Gearbox and Motor (55-100-0273-001) 613
- Removal of Azimuth Encoder (GTX-A188) 613
- Replacement of Azimuth Encoder (GTX-A188) 613
- Transceiver (DTX-A115) - Removal 614
- Transceiver (DTX-A115) - Replacement 614
- Power Supply (45-690-0062-002) and PSU Sense PCB (DTX-A121) - Removal 615
- Power Supply (45-690-0062-002) and PSU Sense PCB (DTX-A121) - Replacement 615
- CAN Adapter PCB (NNR-A981) - Removal 615
- CAN Adapter PCB (NNR-A981) - Replacement 615
- SharpEye Azimuth Interface PCB (DTX-A151) - Removal 616
- SharpEye Azimuth Interface PCB (DTX-A151) - Replacement 616
- DRIVE CONTROL UNIT (GTX-A24) 618
- CHECKS AFTER UNIT REPLACEMENT 620
- TRANSCEIVER (DTX-A3) 612
- ILLUSTRATIONS
- CONTENTS
- CHAPTER 7
- INSTALLATION AND SERVICE REPORTS
TRANS CEIVER (DTX-A3)
13 The locations of the modules and assemblies in the upmast transceiver and turning
mechanism are shown in Figure 3.
Access
14 Access to the modules and assemblies in the Upmast Transceiver, except the motor and
gearbox, is attained by releasing the seven bolts securing the side cover in position and
then removing the cover.
Re moval of Ro tat ing Joint (45-750-0034-001)
15 To remove the rotating joint, proceed as follows:
(1) Remove the antenna from the gearbox as follows:
CAUTION
When removing the antenna support it near its centre when lifting it from the
gearbox. Do not handle the antenna by the waveguide input.
When removing and replacing the antenna ensure the waveguide input, on the end of
the antenna, is not crushed or damaged.
(a) Slacken the 4 M8 x 75 mm bolts securing the antenna to the mounting
bracket, allowing the antenna to be moved.
(b) Remove and retain all bolts, nuts, washers and screws securing the
waveguide to the rotating joint, antenna waveguide input and mounting
bracket. Carefully withdraw the waveguide from the assembly and store in
a safe place.
(c) Remove and retain the 4 M8 x 75 mm bolts securing the antenna to the
mounting bracket, and carefully withdraw the antenna from the mounting
bracket.
(d) Remove and retain the 8 M10 x 40 mm bolts securing the mounting bracket
to the swing casting.
(2) Inside the transceiver housing remove and retain the 4 allen key socket head
screws that secure the bottom 90 degree bend of the rotating joint to the main
shaft of the rotating joint.
(3) Before withdrawing the rotating joint, it will also be necessary to untie the unused
coil of S-Band feed.
(4) Remove and retain the 6 M6 x 20 mm bolts and M6 washers that secure the top
housing of the rotating joint to the swing casting, and carefully withdraw the
rotating joint upwards out of the swing casting.
(5) If the bottom 90 degree bend of the rotating joint is also required, remove and
retain the 4 bolts, nuts and washers that secure it to the internal waveguide.
KH1264
Chap ter 6
Page 6.12 Is sue 2