LG OK99FB Manuals

Manuals and User Guides for LG OK99FB. We have 1 LG OK99FB manual available for free PDF download: Service Manual

LG OK99FB Service Manual

LG OK99FB Service Manual (85 pages)

Brand: LG | Category: Stereo System | Size: 28.21 MB

Table of Contents

Section 1 Summary

3
- Table of Contents
  3
- Servicing Precautions
  4
- Esd Precautions
  6
- 1 Hidden Key Mode Table
  
  7
  - Hidden Key Mode
    7
- 2 Hidden Key Mode Description
  
  7
  - Program Download Guide
    8
  - Fota Update Step Using Bt App
    11
  - Specifications
    13
Section 2 Cabinet & Main Chassis

14
- Disassembly Instructions
  15
- Exploded Views
  22
Section 3 Electrical

26
- One Point Repair Guide
  
  27
  - Power
    27
  - Booting When Power on the Set
    29
  - Vfd Is Not Displayed When Power on the Set
    30
  - Booting in CD/Usb Function
    31
  - Operation of MD
    35
  - Sound in the Usb Function
    40
  - Audio Output Is Small or no Audio Output
    41
  - Power on (Vfd Display D-Protection and Power Off)
    42
  - Speaker no Audio
    43
  - Sound
    44
- Electrical Troubleshooting Guide
  
  49
  - Power Supply on Smps Board
    49
  - System Part
    52
  - Audio Check
    53
  - Lighting
    58
- Waveforms of Major Check Point
  
  59
  - Dsp (Ic501)
    59
  - Pwm (Ic600)
    60
  - Servo (Ic401)
    61
  - Motor Driver (Ic400)
    62
  - Adc
    63
  - Usb
    63
  - Bluetooth
    64
- Wiring Diagram
  
  66
- Block Diagram
  
  67
- Circuit Voltage Chart
  
  68
  - IC Voltage
    68
  - Fan Motor Voltage
    68
  - Smps Capacitor & Zener Diode
    68
  - Capacitor Voltage
    68
  - Connector Voltage
    70
- Printed Circuit Board Diagrams
  
  72
  - Smps P.C.board Diagram
    72
  - Main P.C.board Diagram
    74
  - Top P.C.board Diagram
    76
  - Jack & Rmc P.C.board Diagram
    78
  - Sparkle Led P.C.board Diagram
    78
  - X-Flash Left P.C.board Diagram
    79
  - X-Flash Right P.C.board Diagram
    79
  - Speaker Led P.C.board Diagram
    79
Section 4 Mechanism (Dm19D)

80
- Deck Mechanism Disassembly
  
  81
  - Cover Top
    81
  - Clamp Assembly
    81
    
    Plate
    81
    
    Magnet
    81
    
    Clamp
    81
    
    Tray Disc
    82
    
    Pick up Assembly
    83
    
    Base Up/Down
    83
    
    Belt Loading
    84
    
    Gear Pulley
    84
    
    Gear Loading
    84
    
    Guide
    84
  - Deck PCB Assembly
    84
  - Motor Assembly
    84
  - FFC Cable
    84
- Deck Mechanism Exploded View (Dm19D)
  
  85

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