Hytera PD362 User manual

PORTABLE

Preface

This manual describes the information related to the product repair. It is intended for use by qualified

technicians only. To repair the product properly, please read this manual carefully before repairing.

This manual is applicable to the following product:

PD36X Digital Portable Radio (X may represent 2, 5, 6 or 8)

Hytera is the trademark or registered trademark of Hytera Communications Corporation Limited (the

Company) in PRC and/or other countries or areas. The Company retains the ownership of its trademarks

and product names. All other trademarks and/or product names that may be used in this manual are

properties of their respective owners.

The product described in this manual may include the Company’s computer programs stored in memory

or other media. Laws in PRC and/or other countries or areas protect the exclusive rights of the Company

with respect to its computer programs. The purchase of this product shall not be deemed to grant, either

directly or by implication, any rights to the purchaser regarding the Company’s computer programs. Any

of the Company’s computer programs may not be copied, modified, distributed, decompiled, or

reverse-engineered in any manner without the prior written consent of the Company.

The AMBE+2TM voice coding technology embodied in this product is protected by intellectual property

rights including patent rights, copyrights and trade secrets of Digital Voice Systems, Inc. This voice

coding technology is licensed solely for use within this product. The user of this technology is explicitly

prohibited from attempting to decompile, reverse engineer, or disassemble the Object Code or in any

other way convert the Object Code into a human-readable format.

U.S. Patent No: #6,912,495 B2, #6,199,037 B1, #5,870,405, #5,826,222, #5,754,974, #5,701,390,

#5,715,365, #5,649,050, #5,630,011, #5,581,656, #5,517,511, #5,491,772, #5,247,579, #5,226,084 and

#5,195,166.

Disclaimer

Hytera Communications Corporation Limited (the Company) endeavors to achieve the accuracy and

completeness of this manual, but no warranty of accuracy or reliability is given. 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 express written

permission of us.

We do not guarantee, for any particular purpose, the accuracy, validity, timeliness, legitimacy or

completeness of the Third Party products and contents involved in this manual.

If you have any suggestions or would like to learn more details, please visit our website at:

http://www.hytera.com.

Documentation Information

Conventions

Icon Conventions

Icon Description

Tip Indicates information that can help you make better use of your product.

Note Indicates references that can further describe the related topics.

Caution Indicates situations that could cause data loss or equipment damage.

Warning Indicates situations that could cause minor personal injury.

Danger Indicates situations that could cause major personal injury or even death.

Notation Conventions

Notation Description

“ ”

The quotation marks enclose the name of a software interface element. For

example, click “OK”.

Bold

The text in boldface denotes the name of a hardware button. For example, press the

PTT key.

The symbol directs you to access a multi-level menu. For example, to select “New”

from the “File” menu, we will describe it as follows: “File -> New”.

Revision History

Version Release Date Description

V00 10-2014

Initial Release. This manual includes the information of

these frequency bands:

Ua (400‐440 MHz)

Ua (400

‐

440 MHz)

Contents

1. Product Controls .................................................................................................................................. 1

2. Disassembly and Assembly................................................................................................................ 3

3. Exploded View and Packaging Guide................................................................................................ 7

3.1 Exploded View .................................................................................................................................. 7

3.2 Packaging Guide .............................................................................................................................. 9

4. Specifications ..................................................................................................................................... 10

5. Circuit Description ............................................................................................................................. 12

5.1 Baseband........................................................................................................................................ 12

5.1.1 Power Supply Module .......................................................................................................... 12

5.1.2 Control Module ..................................................................................................................... 15

5.1.3 Audio Module........................................................................................................................ 16

5.2 RF Section ...................................................................................................................................... 17

5.2.1 Transmitter Circuit ................................................................................................................ 17

5.2.2 Receiver Circuit .................................................................................................................... 19

5.2.3 FGU ...................................................................................................................................... 20

6. Troubleshooting Flow Chart ............................................................................................................. 22

6.1 Control Circuit ................................................................................................................................. 22

6.1.1 No display upon power-on or abnormal display................................................................... 22

6.1.2 No voice output by speaker.................................................................................................. 23

6.1.3 No modulation signal in transmission .................................................................................. 24

6.2 Receiver Circuit .............................................................................................................................. 25

6.3 Transmitter Circuit .......................................................................................................................... 26

6.4 FGU Circuit ..................................................................................................................................... 29

7. Interface Definition............................................................................................................................. 31

8. Tuning Description............................................................................................................................. 32

8.1 Tools ............................................................................................................................................... 32

8.2 Tuning Procedure ........................................................................................................................... 32

8.2.1 Tuning a radio....................................................................................................................... 32

8.2.2 Testing a radio ...................................................................................................................... 35

9. PCB View............................................................................................................................................. 36

10. Block Diagram .................................................................................................................................. 37

10.1 Radio General Diagram................................................................................................................ 37

10.2 RF Circuit...................................................................................................................................... 38

10.3 Baseband Circuit .......................................................................................................................... 39

10.4 Power Supply Circuit .................................................................................................................... 40

10.5 FGU Circuit ................................................................................................................................... 41

10.6 Receiver Circuit ............................................................................................................................ 42

Contents

Ua (400

‐

440 MHz)

10.7 Transmitter Circuit ........................................................................................................................ 43

11. Schematic Diagram.......................................................................................................................... 44

12. Parts List ........................................................................................................................................... 54