Motorola ASTRO Digital Spectra User Manual

6881076C25-E September 5, 2008
Troubleshooting Procedures: ASTRO Spectra Procedures 4-3
In the case of multiple errors, the codes are logically OR’d and the results displayed. As an example,
in the case of an ADSIC checksum failure and a DSP ROM checksum failure, the resultant code
would be 02/A1. Following is a series of troubleshooting flowcharts which relate to each of these
failure codes.
4.1.3.1 Power-Up Sequence
Upon RESET* going active, the MCU begins to execute code which is pointed to by the vector stored
at $FFFE, $FFFF in the FLASH ROM. The execution of this code is as follows:
1. Initialize the MCU (U204).
2. The control head’s MCU turns on the:
- Green LED for the W3 model.
- TX and Busy LEDs for the W4, W5, W7 and W9 models.
3. Initialize the SLIC (U206).
4. CONFIG register check. If the CONFIG register is not correct, the MCU will repair it and loop.
5. Start ADSIC/DSP:
- Bring the ADSIC reset line high.
- Wait 2ms.
- Bring the DSP reset line high.
6. Start EMC:
- Set the EMC wake-up line low (emc irq line).
- Wait 5ms.
- Set the EMC wake-up line high.
- Wait 10ms.
- Set the EMC wake-up line low (emc irq line).
- Wait 5ms.
02/81 DSP ROM checksum failure Chart C.12 (p. 5-10)
02/82 DSP RAM 1 failure Chart C.15 (p. 5-12)
02/84 DSP RAM 2 failure Chart C.14 (p. 5-11)
02/88 DSP RAM failure - Note: Not a checksum failure Chart C.13 (p. 5-11)
02/90 General DSP hardware failure (DSP start-up
message not received correctly)
Chart C.16 (p. 5-12)
02/A0 ADSIC checksum failure Chart C.11 (p. 5-10)
09/10 Secure option not communicating with radio Chart C.17 (p. 5-13)
09/90 Secure hardware failure Chart C.18 (p. 5-13)
Table 4-1. Power-Up Self-Check Error Codes (Continued)
Error
Code
Description Troubleshooting Chart

Motorola ASTRO Digital Spectra Specifications

General

Frequency Range	136-174 MHz (VHF), 403-470 MHz (UHF), 800 MHz
Modulation	FM, Digital
Dimensions	Varies by model
Weight	Varies by model
Encryption	DES, AES (Optional)
Operating Temperature	-30°C to +60°C

Summary

Foreword

Product Safety and RF Exposure Compliance

Information on compliance with RF energy exposure requirements and approved accessories.

Manual Revisions

Information on how to obtain manual revisions (FMRs).

Computer Software Copyrights

Legal notice regarding copyrighted Motorola computer programs.

Document Copyrights

Legal notice regarding duplication and distribution of the document.

Disclaimer

Statement regarding reliability and changes to products.

Trademarks

Lists registered trademarks of Motorola.

Document History

Edition

Lists the manual editions and their publication dates.

Chapter 1 Introduction

1.1 General

Overview of the manual's purpose and content for maintaining product performance.

1.2 Notations Used in This Manual

Explains the use of warnings, cautions, and notes for safety and operational emphasis.

Chapter 2 General Overview

2.1 Introduction

Describes the ASTRO Digital Spectra radio's architecture, models, and major assemblies.

2.2 Analog Mode of Operation

Explains the radio's signal reception and transmission process in analog mode.

2.3 ASTRO Mode of Operation

Details the operation in ASTRO mode, focusing on deviation levels.

2.4 Control Head Assembly

Discusses the basic operation and components of the control head assembly.

Chapter 3 Theory of Operation

3.1 RF Board

Detailed circuit description of the RF board for VHF, UHF, and 800 MHz models.

3.2 Command Board

Detailed circuit description of the ASTRO Digital Spectra Command Board.

3.3 ASTRO Spectra VOCON Board

Detailed circuit description of the ASTRO Digital Spectra VOCON board (non Plus).

3.4 ASTRO Spectra Plus VOCON Board

Detailed circuit description of the ASTRO Digital Spectra Plus VOCON board.

3.5 Voltage Control Oscillator

Detailed circuit description of the voltage-controlled oscillator (VCO) for different bands.

3.6 Receiver Front-End

Detailed circuit description of the receiver front-end (RXFE).

3.7 Power Amplifiers

Detailed circuit description of the power amplifiers.

Chapter 4 Troubleshooting Procedures

4.1 ASTRO Spectra Procedures

Guidance for troubleshooting ASTRO Digital Spectra radio malfunctions.

4.2 ASTRO Spectra Plus Procedures

Troubleshooting procedures specific to ASTRO Spectra Plus radios.

4.3 VCO Procedures

Band-specific troubleshooting procedures for the VCO.

4.4 Receiver Front-End (RXFE)

Band-specific troubleshooting procedures for the receiver front-end.

4.5 Power Amplifier Procedures

Band-specific troubleshooting procedures for the power amplifier.

Chapter 5 Troubleshooting Charts

5.1 Introduction

Introduction to troubleshooting flowcharts for circuit operation and troubleshooting techniques.

5.2 List of Troubleshooting Charts

Lists troubleshooting charts by chart number, description, and page number.

Chapter 6 Troubleshooting Waveforms

6.1 Introduction

Introduction to waveform images for verifying circuit operation.

6.2 ASTRO Digital Spectra Waveforms

Images of waveforms for ASTRO Digital Spectra, useful for verification.

6.3 ASTRO Digital Spectra Plus VOCON Board Waveforms

Waveform images specific to the ASTRO Digital Spectra Plus VOCON board.

Chapter 7 Schematics, Component Location Diagrams and Parts Lists

7.1 List of Schematics and Component Location Diagrams

Lists all schematics and component location diagrams contained within the chapter.

7.2 VOCON Section

Provides schematics and component location diagrams for VOCON boards.

7.3 ASTRO Spectra Plus VOCON Section

Provides schematics for ASTRO Spectra Plus VOCON boards.

7.4 VCO Section

Lists schematics and component location diagrams for VCO sections across different bands.

7.5 RX Front-End Section

Lists schematics and component location diagrams for receiver front-end sections.

7.6 Power Amplifier Section

Lists schematics and component location diagrams for power amplifiers.

Appendix A Secure Modules

A.1 Introduction

Introduces secure modules for encryption and decryption of voice and data.

A.2 Circuit Description

Describes the circuit operation and interface of the secure module.

A.3 Troubleshooting Secure Operations

Procedures for troubleshooting secure operations and specific error codes.

Appendix B Replacement Parts Ordering

B.1 Basic Ordering Information

Guidelines for ordering replacement parts, including required identification.

B.2 Transceiver Board and VOCON Board Ordering Information

Information on ordering replacement transceiver and VOCON boards.

B.3 Motorola Online

Information on accessing the Motorola online catalog.

B.4 Mail Orders

Details on how to place mail orders for parts and equipment.

Glossary

Term

Lists terms and their definitions applicable to ASTRO radios.

Definition

Provides definitions for terms used in the manual.

Index

Numerics

Index entries for numerical terms and specifications.

A

Index entries for terms starting with the letter 'A'.

B

Index entries for terms starting with the letter 'B'.

C

Index entries for terms starting with the letter 'C'.

H

Index entries for terms starting with the letter 'H'.

I

Index entries for terms starting with the letter 'I'.

K

Index entries for terms starting with the letter 'K'.

L

Index entries for terms starting with the letter 'L'.

M

Index entries for terms starting with the letter 'M'.

N

Index entries for terms starting with the letter 'N'.

O

Index entries for terms starting with the letter 'O'.

P

Index entries for terms starting with the letter 'P'.

R

Index entries for terms starting with the letter 'R'.