RCA RDR9000 User manual

RDR9000U/V Service
Manual

Foreword
This manual describes information relating to product repair.
To service the product properly, please read this manual carefully.
This manual covers the following model:
RDR9000
RDR9000 Service Manual

Disclaimer
The information in this manual is carefully examined and is believed to be entirely reliable.
However, no responsibility is assumed for inaccuracies. All the specifications and designs are
subject to change without notice due to continuous technology development. No part of this
manual may be copied, modified, translated, or distributed in any manner without the prior
written permission of the Company.
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Contents
Document Information............................................................................................................ 1
1.Introduction......................................................................................................................... 2
2.Product Controls................................................................................................................. 3
3.Baseband Section............................................................................................................... 5
3.1 Power Section........................................................................................................... 5
3.1.1 Power Block Diagram...................................................................................... 5
3.1.2 Working Principle ............................................................................................ 6
3.2 Control Section.......................................................................................................... 7
3.2.1 Major Features................................................................................................ 7
3.2.2 Baseband Block Diagram................................................................................ 8
3.2.3 OMAPL-138 Reset.......................................................................................... 9
3.2.4 External Memory............................................................................................. 9
3.2.5 Interface Distribution ..................................................................................... 10
3.2.5.1 PLL Interface....................................................................................... 10
3.2.5.2 IF Processor Interface......................................................................... 10
3.2.5.3 DAC Interface...................................................................................... 10
3.2.5.4 RTC Interface...................................................................................... 10
3.2.5.5 MAC Interface......................................................................................11
3.2.5.6 USB Interface.......................................................................................11
3.2.5.7 Control Head Interface.........................................................................11
3.2.5.8 GPIO Interface.....................................................................................11
3.2.5.9 JTAG Interface .....................................................................................11
3.2.5.10 Rear Board Interface..........................................................................11
3.2.6 Clock............................................................................................................. 12
3.3 Audio Section .......................................................................................................... 13
3.3.1 Audio Scheme............................................................................................... 13
3.3.2 Audio Codec.................................................................................................. 14
3.3.3 Audio PA........................................................................................................ 16
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3.4 Control Head........................................................................................................... 17
3.4.1 Block Diagram............................................................................................... 17
3.4.2 Working Principle .......................................................................................... 17
3.4.3 MCU Reset.................................................................................................... 17
3.4.4 Key and Display Management ...................................................................... 17
3.5 Rear Board.............................................................................................................. 18
3.5.1 Block Diagram............................................................................................... 18
3.5.2 Working Principle .......................................................................................... 18
3.6 Troubleshooting Flow Chart..................................................................................... 19
4.Tuning Description............................................................................................................ 20
5.Interface Description......................................................................................................... 21
5.1 Internal Interface ..................................................................................................... 21
5.2 External Interface.................................................................................................... 27
6.UHF1 (400–470 MHz) Information.................................................................................... 29
6.1 Transmitter Circuit................................................................................................... 29
6.1.1 RF Power Amplifier Circuit ............................................................................ 29
6.1.2 Low-Pass Filter Circuit .................................................................................. 30
6.1.3 Auto Power Control Circuit............................................................................ 30
6.2 Receiver Circuit....................................................................................................... 31
6.2.1 Receiver Front-End....................................................................................... 31
6.2.2 Receiver Back-End........................................................................................ 32
6.3 FGU......................................................................................................................... 33
6.3.1 Working Principle of PLL............................................................................... 33
6.3.2 Working Principle of VCO.............................................................................. 34
6.3.3 Two-Point Modulation.................................................................................... 34
6.4 PCB View................................................................................................................ 35
6.5 Block Diagram......................................................................................................... 40
6.6 Schematic Diagram................................................................................................. 45
6.7 Parts List ................................................................................................................. 68
6.8 Troubleshooting Flow Chart................................................................................... 124
6.8.1 Receiver Circuit........................................................................................... 124
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6.8.2 Transmitter Circuit....................................................................................... 126
6.8.3 FGU............................................................................................................. 128
7.UHF3 (350-400 MHz) Information................................................................................... 130
7.1 Transmitter Circuit................................................................................................. 130
7.1.1 RF Power Amplifier Circuit .......................................................................... 130
7.1.2 Low-Pass Filter Circuit ................................................................................ 131
7.1.3 Auto Power Control Circuit.......................................................................... 131
7.2 Receiver Circuit..................................................................................................... 132
7.2.1 Receiver Front-End..................................................................................... 132
7.2.2 Receiver Back-End...................................................................................... 133
7.3 FGU....................................................................................................................... 134
7.3.1 Working Principle of PLL............................................................................. 134
7.3.2 Working Principle of VCO............................................................................ 135
7.3.3 Two-Point Modulation.................................................................................. 135
7.4 PCB View.............................................................................................................. 136
7.5 Block Diagram....................................................................................................... 141
7.6 Schematic Diagram............................................................................................... 146
7.7 Parts List ............................................................................................................... 169
7.8 Troubleshooting Flow Chart................................................................................... 226
7.8.1 Receiver Circuit........................................................................................... 226
7.8.2 Transmitter Circuit....................................................................................... 228
7.8.3 FGU............................................................................................................. 230
8.VHF (136-174 MHz) Information..................................................................................... 232
8.1 Transmitter Circuit................................................................................................. 232
8.1.1 RF Power Amplifier Circuit .......................................................................... 232
8.1.2 Low-Pass Filter Circuit ................................................................................ 233
8.1.3 Auto Power Control Circuit.......................................................................... 233
8.2 Receiver Circuit..................................................................................................... 234
8.2.1 Receiver Front-End..................................................................................... 234
8.2.2 Receiver Back-End...................................................................................... 235
8.3 FGU....................................................................................................................... 236
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8.3.1 Working Principle of PLL............................................................................. 236
8.3.2 Working Principle of VCO............................................................................ 237
8.3.3 Two-Point Modulation.................................................................................. 237
8.4 PCB View.............................................................................................................. 238
8.5 Block Diagram....................................................................................................... 243
8.6 Schematic Diagram............................................................................................... 248
8.7 Parts List ............................................................................................................... 271
8.8 Troubleshooting Flow Chart................................................................................... 323
8.8.1 Receiver Circuit........................................................................................... 323
8.8.2 Transmitter Circuit....................................................................................... 325
8.8.3 FGU............................................................................................................. 327
9.Disassembly and Assembly ............................................................................................ 329
9.1 Disassembly.......................................................................................................... 329
9.2 Assembly............................................................................................................... 332
10.Exploded View .............................................................................................................. 333
11.Packing Guide............................................................................................................... 336
12.Specifications................................................................................................................ 337
13.Appendix....................................................................................................................... 341
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List of Figures
Figure 3-1 Power Block Diagram..................................................................................... 5
Figure 3-2 Baseband Block Diagram............................................................................... 8
Figure 3-3 Diagram of OMAP-L138................................................................................. 9
Figure 3-4 SPI Timing of SKY72310.............................................................................. 10
Figure 3- 5 Diagram of Clock Distribution...................................................................... 12
Figure 3-6 Diagram of Audio Section............................................................................. 13
Figure 3-7 Diagram of TLV320AIC29 ............................................................................ 14
Figure 3-8 SPI Timing between OMAPL-138 and TLV320AIC29 .................................. 15
Figure 3-9 Diagram of Audio PA Circuit......................................................................... 16
Figure 3-10 Diagram of Control Head ........................................................................... 17
Figure 3-11 Diagram of Rear Board .............................................................................. 18
Figure 6-1 Diagram of Transmitter Circuit ..................................................................... 29
Figure 6-2 Diagram of Receiver Circuit ......................................................................... 31
Figure 6-3 Diagram of IF Processor.............................................................................. 32
Figure 6-4 Diagram of FGU........................................................................................... 33
Figure 6-5 PCB View..................................................................................................... 39
Figure 6-6 Block Diagram.............................................................................................. 44
Figure 6-7 Schematic Diagram...................................................................................... 67
Figure 7-1 Diagram of Transmitter Circuit ................................................................... 130
Figure 7-2 Diagram of Receiver Circuit ....................................................................... 132
Figure 7-3 Diagram of IF Processor............................................................................ 133
Figure 7-4 Diagram of FGU......................................................................................... 134
Figure 7-5 PCB View................................................................................................... 140
Figure 7-6 Block Diagram............................................................................................ 145
Figure 7-7 Schematic Diagram.................................................................................... 168
Figure 8-1 Diagram of Transmitter Circuit ................................................................... 232
Figure 8-2 Diagram of Receiver Circuit ....................................................................... 234
Figure 8-3 Diagram of IF Processor............................................................................ 235
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Figure 8-4 Diagram of FGU......................................................................................... 236
Figure 8-5 PCB View................................................................................................... 242
Figure 8-6 Block Diagram............................................................................................ 247
Figure 8-7 Schematic Diagram.................................................................................... 270
Figure 10-1 Exploded View ......................................................................................... 333
Figure 11-1Packing Guide........................................................................................... 336
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List of Tables
Table 5-1 TX&RX Board 8-Pin Connector (J2001)........................................................ 21
Table 5-2 TX Board J5001: to Control Head 20-Pin Connector (J101).......................... 22
Table 5-3 TX Board J5000: to Rear Board 26-Pin Connector (J1)................................. 23
Table 5-4 RX Board J5000: to Rear Board 26-Pin Connector (J2)................................ 24
Table 5-5 Control Head J3: to Rear Board 12-Pin Connector (J3)................................. 25
Table 5-6 Control Head J102: to LCD Display Connector ............................................. 26
Table 5-7 DB9 Rear Board Connector of the Repeater................................................. 27
Table 5- 8 DB15 Rear Board Connector of the Repeater .............................................. 27
Table 5-9 DB26 Rear Board Connector of the Repeater............................................... 28
Table 6-RDR9000arts List of ER9000 TX Board........................................................... 96
Table 6-RDR9000arts List of ER9000 RX Board ........................................................... 123
Table 7-RDR9000arts List of ER9000 TX Board............................................................ 198
Table 7-RDR9000arts List of ER9000 RX Board ........................................................... 225
Table 8-RDR9000arts List of ER9000 TX Board.............................................................297
Table 8-RDR9000arts List of ER9000 RX Board ........................................................... 322
Table 10-1 Repeater Parts List....................................................................................... 335
RDR9000 Service Manual