LG OM5541FB Manuals

Manuals and User Guides for LG OM5541FB. We have 1 LG OM5541FB manual available for free PDF download: Service Manual

LG OM5541FB Service Manual

LG OM5541FB Service Manual (61 pages)

Brand: LG | Category: Stereo System | Size: 17.09 MB

Table of Contents

Section 1 Summary

3
- Table of Contents
  3
- Esd Precautions
  4
- Hidden Key Mode
  5
- Service Information for Eeprom
  6
- 1 Micom Program
  
  7
  - Program Download & Update Guide
    7
- 2 Mcs Program
  
  8
- 3 Eq Program
  
  9
  - Specifications
    10
Section 3 Electrical

16
- One Point Repair Guide
  
  17
  - Power
    17
  - Booting When Power on the Set
    19
  - Vfd Is Not Displayed When Power on the Set
    20
  - Sound
    21
- Electrical Troubleshooting Guide
  
  27
  - Power (Smps)
    27
  - Mcs Part Check
    30
  - Ic504(M24C16) Check
    30
  - Double Usb Function
    31
  - Fld Display Check
    32
  - Pwm Modulation Check
    33
  - Power Amp Part Check
    35
  - Tuner / Aux Function Check
    36
  - MIC Function Check
    37
- Waveforms of Major Check Point
  
  38
  - Sdram
    38
  - Audio Path
    38
  - Usb
    38
- Wiring Diagram
  
  40
- Block Diagrams
  
  41
  - System Block Diagram_1
    41
  - System Block Diagram_2
    42
  - Smps Block Diagram_1
    43
  - Smps Block Diagram_2
    44
- Circuit Diagrams
  
  45
  - Smps Circuit Diagram
    45
  - Main_Dsp Circuit Diagram
    46
  - Main_Adc/Pwm Circuit Diagram
    47
  - Main_Amp Circuit Diagram
    48
  - Front_Key/Usb Circuit Diagram
    49
  - Front_Vfd Circuit Diagram
    50
  - Front_Key/Ptb Circuit Diagram
    51
  - Front_Mic Circuit Diagram
    52
  - Spk_Led Circuit Diagram
    53
  - X_Led/Rcu2 Circuit Diagram
    54
- Circuit Voltage Chart
  
  55
  - Ics
    55
    
    Capacitors
    55
    
    Connectors
    56
- Printed Circuit Board Diagrams
  
  57
  - Smps P.C.board
    57
  - Main P.C.board
    58
  - Front_Key/Usb P.C.board
    59
  - Front_Vfd P.C.board
    59
  - Front_Key/Ptb P.C.board
    60
  - Front_Mic P.C.board
    60
  - Spk_Led P.C.board
    61
  - X_Led/Rcu2 P.C.board
    61

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