Motorola ASTRO Digital Spectra Plus manuals

Owner’s manuals and user’s guides for Two-way radios Motorola ASTRO Digital Spectra Plus.
We providing 1 pdf manuals Motorola ASTRO Digital Spectra Plus for download free by document types: Service Manual

Motorola ASTRO Digital Spectra Plus Service Manual (398 pages)

Brand: Motorola | Category: Two-way radios | Size: 19.52 MB |

English

Table of contents

Digital Spectra

1

Detailed Service Manual

1

Foreword

2

Table of Contents

3

Table of Contents v

5

Table of Contents vii

7

Table of Contents ix

9

July 1, 2002 68P81076C25-C

10

Table of Contents xi

11

List of Figures

13

List of Tables

14

Related Publications

14

Commercial Warranty

15

III. State Law Rights

16

VII. Governing Law

17

June 28, 2002 68P81076C25-C

18

Model Number Description

20

Item No. Description

20

(cont.)

32

VHF Radio Specifications

35

UHF Radio Specifications

36

800 MHz Radio Specifications

37

Chapter 1 Introduction

39

D A N G E R

40

Chapter 2 General Overview

41

2.2 Analog Mode of Operation

42

2.3 ASTRO Mode of Operation

42

2.4 Control Head Assembly

42

2.4.9 Vehicle Interface Ports

44

2.4.10 Power Supplies

44

2.5 Power Amplifier

45

2.7 RF Board Basic

46

2.9 Command Board

47

2.11 Radio Power

48

Vocoder/Controller

50

Chapter 3 Theory of Operation

51

3.1.2 Synthesizer

53

MAEPF-25184-O

55

3.1.2.7 Second VCO

56

3.1.2.8 Power Distribution

56

3.1.3 Receiver Back-End

56

3.1.3.1 First IF

56

3.1.3.2 ABACUS II IC

57

3.2 Command Board

58

3.2.3 Power-Up/-Down Sequence

59

3.2.4 Regulators

60

3.2.5 Reset Circuits

60

MAEPF-25185-O

61

3.2.8 Received Audio

62

3.2.9 Microphone Audio

62

3.2.10 Transmit Deviation

63

3.2.11 RS-232 Line Driver

63

3.2.12 Flash Programming

63

3.2.13 Encryption Voltages

63

Standard spec. European spec

64

3.3 ASTRO Spectra VOCON Board

65

MC68HC11F1

66

3.3.3 Vocoder Section

67

3.3.4 RX Signal Path

68

DSP56001

69

MAEPF-25107-O

69

3.3.5 TX Signal Path

71

3.3.7 Vocoder Bootstrap

74

3.3.9 Controller Memory Map

74

NON-MUX 32K COMMON

75

3.3.10 Vocoder Memory Map

76

3.3.11 MCU System Clock

78

3.3.12 DSP System Clock

78

3.3.14 VOCON BOARD Signals

79

Table 3-6. U204 (MCU)

82

Description To/From

82

3.4.1 General

88

3.5.1 VHF Band

97

3.5.1.1 General

97

3.5.1.2 DC Voltage Supplies

97

3.5.1.3 VCO

97

3.5.1.4 Synthesizer Feedback

98

3.5.1.5 RX Buffer Circuitry

98

3.5.2 UHF Band

98

3.5.2.1 General

98

68P81076C25-C July 1, 2002

101

3.5.3.10 Second Buffer

102

3.5.3.11 K9.4 V Switch

102

3.6 Receiver Front-End

103

3.6.3.1 General

104

3.6.3.2 Theory of Operation

104

3.6.2.2 Theory of Operation

104

3.6.3 800 MHz Band

104

3.7 Power Amplifiers

105

RPCIC ENABLE

107

3.7.2.1 High-Power Amplifier

118

C a u t i o n

127

4.1.3.1 Power-Up Sequence

135

PIN 13 (Chip Select)

138

PIN 12 (Data)

138

PIN 11 (Clock)

138

109.2 MHz

140

= 300 kHz

140

4.1.5 Standard Bias Table

141

4.3 VCO Procedures

145

4.3.1.4 No or Low Modulation

147

4.3.2 UHF Band

147

4.3.2.1 VCO Hybrid Assembly

147

4.3.2.4 No or Low Modulation

149

4.3.3 800 MHz Band

150

4.3.3.1 VCO Hybrid Assembly

150

4.3.3.4 No or Low Modulation

151

4.4 Receiver Front-End (RXFE)

152

4.5.1 VHF Band

153

4.5.1.1 High-Power Amplifier

153

W A R N I N G

160

Do NOT exceed 9.2 V

162

4.5.2 UHF Band

179

4.5.2.1 High-Power Amplifier

179

MAEPF-22045-O

188

4.5.3 800 MHz Band

198

5.1 Introduction

209

Chart C.1 RF Board Back-End

211

Chart C.2 Command Board

212

Chart C.3 Radio Power-Up Fail

213

MAEPF-24420-A

214

MAEPF-25209-O

215

MAEPF-24407-B

217

TECHNICAL PUBLICATIONS DEPT

218

DWG. NO

218

MAEPF-24410-B

219

Chart C.19 No RX Audio

222

Chart C.20 No TX Modulation

223

Chart C.21 Key Load Fail

224

MAEPF-25187-O

235

Waveform W7: Receive Audio

238

Waveform W8: Transmit Audio

239

Waveform W9: Power-Down Reset

239

32 kHz Clock Waveform

241

16.8 MHz Clock Waveform

242

TX Modulation Out Waveform

242

TX SSI Waveform

243

SPI Bus Waveform

244

TX 1 kHz Tone Waveform

244

Serial Audio Port Waveform

245

RX Audio Waveform

245

RX BBP Waveform

246

Secure Interface Waveform

246

Receiving

247

Trace 1 — U601 — 5

247

7.1 RF Section

250

HRN6019A 800 MHz RF Board

255

Electrical Parts List

255

8485219C03

262

MHz RF Board Parts Lists

263

2, 3, and 4

271

1, 2, 4, and 5

271

Parts List

308

July 1, 2002 6

311

8P81076C25-C

311

Side 2Side 1

315

Range 3 Range 4

321

HRD6011E Parts List

333

HRD6012E Parts List

333

Side 1 Side 2

336

VHF RXFE

337

Front-End-Preamp

338

Front-End-Standard

338

Appendix A Secure Modules

383

A.2 Circuit Description

384

B.3 Motorola Online

385

B.4 Mail Orders

385

B.5 Telephone Orders

386

B.6 Fax Orders

386

B.7 Parts Identification

386

B.8 Product Customer Service

386

Glossary Glossary

387

Glossary-2

388

Glossary-3

389

Glossary-4

390

Glossary-5

391

Glossary-6

392

Glossary-7

393

Glossary-8

394

Glossary-9

395

Glossary-10

396

*6881076C25*

398

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