BBK V3N Manuals

BBK V3N Manuals

Manuals and User Guides for BBK V3N. We have 1 BBK V3N manual available for free PDF download: Service Manual

BBK V3N Service Manual

BBK V3N Service Manual (85 pages)

Brand: BBK | Category: Media Player | Size: 7.88 MB

Table of Contents

Table of Contents
2
Chapter One about Maintenance
6
Maintenance Method
6
- Visualized Method
  6
- Electric Resistance Method
  7
- Voltage Method
  7
- Current Method
  7
  - Cutting Method
    7
  - Element Substitution Method
    7
- Comparison Method
  7
Safety Precautions
6
- Precautions for Antistatic
  6
- About Placement Position
  6
Required Device for Maintenance
8
- Chapter Two Functions and Operation Instructions
  9
Quick Operation
9
- Buttons and Jacks Illustration
  9
  - Power On/Off
    10
- Play Music
  10
- Video
  11
  - Picture Browsing
    11
  - E-Book Browsing
    11
- Recording
  11
- Tuning
  12
  - Resume Playing
    12
- Calendar
  12
- Charge
  12
- Reset
  12
Usage Introduction
12
- Main Menu Illustration
  12
- Playing Interface
  13
- Recording Interface
  13
- Tuning Interface
  13
Basic Operation
13
- Use Mobile Storage Function
  13
- Disconnect Usb Safely
  14
- Video Conversion Tool
  14
- Browse/Cancel File
  14
- Play Music
  14
  - A-B Repeat Function
    15
  - Playing Mode
    15
- Eq Mode
  15
  - My Eq Setup
    15
- Wallpaper Select
  15
- Record
  16
- Tuning
  16
- E-Book
  16
  - Calendar
    17
System Setup
17
- Language
  17
- Timing Power-Off
  17
- 3Screen Saver Time
  17
  - Brightness
    18
  - Fm Channel
    18
- Sound of Pressing
  18
- Default Settings
  18
- Firmware Upgrading
  18
- System Information
  18
- Format
  18
Specification
18
- Chapter Three Principle and Servicing
  19
Section One Principle of the Player
19
Section Two Unit Circuit Principle
22
- Video Decode Circuit Principle
  22
- Audio Decode Circuit Principle
  23
- FLASH Circuit
  24
- FM Tuning Circuit
  25
- Display Screen Boost Circuit
  26
- USB Jack Circuit
  27
- Headphone Output Jack Circuit
  28
- Button Circuit
  28
- Charge Management Circuit
  29
- Battery Voltage Detect Circuit
  30
  - Battery Protection Circuit
    31
- Power Management Module
  31
- Reset Circuit
  32
- Power On/Off Control Circuit
  33
- MIC Circuit
  34
Section Three Servicing Cases
35
- Servicing Cases
  35
- Troubleshooting Diagram
  38
Section Four Signal Waveform Diagram
43
Section Five Function Introduction to IC
47
Section One PCB Board
66
- Surface Layer of Main Board
  66
- Bottom Layer of Main Board
  67
Section Two Circuit Diagram
68
Section One PCB Board
79
- Surface Layer of Main Board
  79
- Bottom Layer of Main Board
  80
Section Two Circuit Diagram
81

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