Hytera PD508 Manuals

Manuals and User Guides for Hytera PD508. We have 1 Hytera PD508 manual available for free PDF download: Service Manual

Hytera PD508 Service Manual

Hytera PD508 Service Manual (137 pages)

PD50X Series

Brand: Hytera | Category: Portable Radio | Size: 8 MB

Table of Contents

Conventions
4
Notational Conventions
4
Table of Contents
6
1 Product Controls

7
2 Disassembly and Assembly

8
3 Exploded View and Packaging Guide

11
- Packaging Guide
  13
4 Specifications

14
5 Circuit Description

16
- Baseband Section
  16
  - Power Supply Module
    16
  - Diagram of Power Control
    16
  - Control Module
    17
    
    Power Protection
    17
    
    Power Consumption Control
    17
    
    OMAP5912 Dual-Core Processor
    17
    
    External Memory
    19
    
    Emifs
    20
    
    Emiff
    20
    
    Clock
    21
    
    Input Clock
    21
    
    Reset Signal
    21
    
    Spi
    21
    
    Mcbsp
    22
    
    Usb
    22
    
    Microwire
    23
    
    Mcsi1
    23
  - Audio Module
    24
    
    Audio Diagram
    24
    
    Diagram of Signal Flow
    24
    
    Audio Amplifier
    25
- RF Section
  25
  - Transmitter Circuit
    25
    
    RF Power Amplifier Circuit
    26
    
    Auto Power Control Circuit
    26
    
    Low-Pass Filter Circuit (for Suppressing Harmonics)
    26
  - Receiver Circuit
    26
    
    Receiver Front-End
    27
    
    Receiver Back-End
    28
  - Fgu
    28
    
    Operation Principle of PLL
    29
    
    Operation Principle of VCO
    29
    
    Two-Point Modulation
    29
6 Troubleshooting Flow Chart

30
- Control Circuit
  30
- Receiver Circuit
  32
- Description of Normal Situations
  33
- Transmitter Circuit
  33
- Fgu
  36
7 Interface Definition

38
- J801 and J802: Double-Pin Interface for Earpiece, Programming and Downloading
  38
8 Tuning Description

39
- Required Test Instruments
  39
- Tuning Procedures
  39
  - Tuning a Radio
    39
  - Test a Radio
    42
    
    Transmitting
    42
    
    Receiving
    42
    
    Pcb
    43
9 PCB View

45
10 Block Diagram

45
- Radio General Diagram
  45
- Block Diagram of FGU
  46
- Block Diagram of RX Circuit
  46
- Block Diagram of TX Circuit
  46
- BB System
  47
11 Schematic Diagram

61
12 Part List

61
- Product Controls
  73
- Disassembly and Assembly
  74
- Exploded View and Packaging Guide
  77
- Exploded View
  77
- Packaging Guide
  79
- Specifications
  80
- Circuit Description
  82
- Baseband Section
  82
- Power Supply Module
  82
- Control Module
  83
- Audio Module
  90
- RF Section
  91
- Transmitter Circuit
  91
- Receiver Circuit
  93
- Fgu
  94
- Troubleshooting Flow Chart
  96
- Control Circuit
  96
- Receiver Circuit
  98
- Transmitter Circuit
  99
- Fgu
  102
- Double-Pin Interface for Earpiece, Programming and Downloading
  104
- Interface Definition
  104
- Tuning Description
  105
- Required Test Instruments
  105
- Tuning Procedures
  105
- Tuning a Radio
  105
- Test a Radio
  107
- Pcb
  108
- Block Diagram
  110
  - Block Diagram of RX Unit
    111
  - Diagram of FGU
    111
  - Parts List
    126

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