User's Manual

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Table Of Contents

Foreword
- General Safety Precautions
- Computer Software Copyrights
- Document Copyrights
- Disclaimer
- Trademarks
General Safety and Installation  Standards and Guidelines
MOTOTRBO SLR 5000 Series Repeater  Supplemental Safety and Installation Requirements
Environmental Information
- Material Content
- Disposal of your Electronic and Electric Equipment
- Disposal Guideline
Document History
Contents
List of Figures
List of Tables
List of Procedures
Related Publications
Summary of Bands Available
Commercial Warranty
- Limited Warranty
SLR 5000 Series Repeater
- 1.1 Notations Used in This Manual
- 1.2 Description
- 1.3 Operating Features
- 1.4 Frequency Ranges and Power Levels
- 1.5 Specifications
- 1.6 Theory of Operation
- 1.7 Basic Repeater Level Troubleshooting – RDAC and LEDs
- 1.8 Repeater Model Numbering Scheme
- 1.9 Model Chart
SLR 5000 Series Satellite Receiver
- 2.1 Description
- 2.2 Operating Features
- 2.3 Frequency Ranges
- 2.4 Specifications
- 2.5 Configuration
- 2.6 Basic Station Level Troubleshooting – RDAC and LEDs
- 2.7 Model Chart
SLR 5000 Series Modem
- 3.1 Description
- 3.2 Receiver Subsystem
  - 3.2.1 Specifications
- 3.3 Transmitter Exciter Subsystem
  - 3.3.1 Specifications
- 3.4 Station Control Subsystem
  - 3.4.1 High Stability Reference Block
  - 3.4.2 Audio
- 3.5 Station Control Interface
SLR 5000 Series Power Amplifier
- 4.1 Description
  - 4.1.1 General Description
- 4.2 Input and Output Connections
- 4.3 Frequency Ranges
- 4.4 Specifications
- 4.5 Modem Interface
SLR 5000 Series Power Supply
- 5.1 Description
  - 5.1.1 General Description
- 5.2 Specifications
- 5.3 Power Supply Interface
SLR 5000 Series Front Panel
- 6.1 Description
  - 6.1.1 General Description
- 6.2 Input and Output Connections
- 6.3 Interfaces
  - 6.3.1 Modem Interface
  - 6.3.2 User/Service Interface
    - 6.3.2.1 USB
    - 6.3.2.2 LED Indicators
SLR 5000 Series Back Panel
- 7.1 Description
  - 7.1.1 General Description
- 7.2 Back panel Interfaces
SLR 5000 Series Test Equipment And Service Aids
- 8.1 Recommended Test Equipment
- 8.2 Service Aids
SLR 5000 Series Performance Check or Testing
- 9.1 General
- 9.2 Transmitter Testing
- 9.3 Receiver Testing
- 9.4 Auto Test and Tune Support
SLR 5000 Series Programming and Tuning
- 10.1 Introduction
- 10.2 Customer Programming Software Setup
- 10.3 Reference Oscillator Alignment
  - 10.3.1 Tuning the Reference Oscillator Alignment
- 10.4 Repeater Tuning Setup
- 10.5 Rx Audio Level Set
  - 10.5.1 Tuning the Rx Audio Level Set
- 10.6 Tx Audio Level Set
  - 10.6.1 Tuning the Tx Audio Level Set
- 10.7 Modulation Limit Alignment
- 10.8 Changing to Battery Charger Only Mode
SLR 5000 Series Maintenance and Disassembly/Reassembly
- 11.1 Introduction
- 11.2 Routine Maintenance
- 11.3 Preventive Maintenance
  - 11.3.1 Inspection
  - 11.3.2 Cleaning Procedures
- 11.4 Safe Handling of CMOS and LDMOS Devices
- 11.5 Disassembly
  - 11.5.1 Disassembly – General
  - 11.5.2 Disassembly – Detailed
- 11.6 Assembly and Reassembly
  - 11.6.1 Assembly – Detailed
    - 11.6.1.1 Back Panel Installation

The critical components of the audio circuit are the TI DM8148 processor and a pair of Texas

Instruments AIC3204 dual channel audio codecs. Figure 10: Audio Block Diagram on page 56 details

the specific interconnects between the critical components.

Figure 10: Audio Block Diagram

TI DM8148

(DSP Core)

TI AIC3204

Audio

Codec 1

TI AIC3204

Audio

Codec 2

Rear Accessory Connector

(DB25)

I²C2 (2)

I²C0 (2)

Audio SSI (4)

TX Audio 1 (Pin 1 & 22)

RX Audio 1 (Pin 7)

TX Data (Pin 13)

RFIC SSI (4)

RX Audio 2

TX Audio 1

TX Data

TX Audio 2

RX Audio 1

The repeater digital audio is handled primarily by the DM8148 processor. The TX RFIC generates a

24.576 MHz master clock (MCLK) that the DM8148 uses to drive its McASP SSI interface for the audio

codecs. The bulk of the audio processing is done in the DaVinci’s DSP core. The audio codecs contain

DACs and ADCs and handle the conversion of the digital audio to analog audio and vice versa.

There are 2 TX audio lines routed in from the rear accessory connector. These are TX Audio 1 (Pins 1

and 22, used for analog and slot 1 digital), and TX Data (Pin 13).

For the RX outputs, there is only 1 which is connected to the accessory connector. RX Audio 1 on

pin 7 (to be used for analog and slot 1 digital).

3.5

Station Control Interface

3.5.1

Front Panel Interface Connector

Refer Modem Interface on page 70 for details.

3.5.2

Rear Panel Connections

Refer USB on page 73 to Auxiliary (Aux) on page 75 for details.

3.5.3

Power Amplifier Interface Connector

The digital interface to the power amplifier module utilizes a 20 pin vertical LIF connector. See

Figure 8: Modem Module Connector Locations on page 52 for the locations of these connectors. Figure

11: Power Amplifier Interface Connector Pin Locations on page 56 shows the pin number locations.

Figure 11: Power Amplifier Interface Connector Pin Locations

Pin 1 Pin 20

MN001436A01-AD

Chapter 3: SLR 5000 Series Modem

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