LG OM7550FB Manuals

Manuals and User Guides for LG OM7550FB. We have 1 LG OM7550FB manual available for free PDF download: Service Manual

LG OM7550FB Service Manual

LG OM7550FB Service Manual (89 pages)

Mini Hi-Fi AUDIO

Brand: LG | Category: Stereo System | Size: 23.8 MB

Table of Contents

Section 1 Summary

3
- Table of Contents
  3
- Servicing Precautions
  4
- Esd Precautions
  6
- Hidden Key Mode
  7
- Service Information for Eeprom
  8
- 1 Audio Program
  
  9
  - Program Download & Update Guide
    9
- 400 CD Program
  
  10
- 3 Eq Program
  
  11
  - Specifications
    12
Section 2 Cabinet & Main Chassis

14
- Disassembly Instructions
  
  15
  - How to Disassemble the Side Cover (Left & Right)
    15
- Exploded Views
  
  18
Section 3 Electrical

22
- One Point Repair Guide
  
  23
  - Power
    23
  - Amp Power
    24
  - Booting When Power on the Set
    25
  - Vfd Is Not Displayed When Power on the Set
    26
  - Audio Output Is Small or no Audio Output
    27
  - Power on (Standby Led Is Blinking)
    28
  - Speaker no Audio
    29
  - Booting in CD/Usb Function
    31
  - Operation of MD
    36
  - Sound
    41
- Electrical Troubleshooting Guide
  
  46
  - Power Supply on Smps Board
    46
  - System Part
    49
  - Audio Check
    50
  - Lighting (Speaker Led)
    55
- Waveforms of Major Check Point
  
  56
  - Dsp (Ic501)
    56
  - Pwm (Ic202)
    57
  - Servo (Ic401)
    58
  - Motor Driver (Ic400)
    59
  - Adc (Ic201)
    60
  - Bluetooth (Cn504)
    61
- Wiring Diagram
  
  62
- Block Diagrams
  
  63
  - System Block Diagram
    63
  - Power Block Diagram
    64
- Circuit Diagrams
  
  65
  - Smps_Power #1 Circuit Diagram
    65
  - Smps_Power #2 Circuit Diagram
    66
  - Main_Cd Dsp Circuit Diagram
    67
  - Main_Adc/Pwm Circuit Diagram
    68
  - Main_Rf Servo Circuit Diagram
    69
  - Main_Amp Circuit Diagram
    70
  - Main_Aux Out/ Vfd Pwr Circuit Diagram
    71
  - Front Circuit Diagram
    72
  - Vfd/Rmc1 Circuit Diagram
    73
  - Top Circuit Diagram
    74
- Circuit Voltage Chart
  
  75
  - Ics
    75
  - Capacitors
    75
  - Connectors
    76
  - Zener Diodes
    76
- Printed Circuit Board Diagrams
  
  77
Appendix Mechanism (Dm19Aa)

84
- Appendix
  
  85
  - Clamp Assembly
    85
    
    Plate
    85
    
    Magnet
    85
    
    Clamp
    85
  - Cover Top
    85
  - Tray Disc
    86
  - Base Up/Down
    87
  - Pick up Assembly
    87
  - Belt Loading
    88
  - Deck PCB Assembly
    88
  - FFC Cable
    88
  - Gear Loading
    88
  - Gear Pulley
    88
  - Guide
    88
  - Motor Assembly
    88
- Deck Mechanism Disassembly
  
  85
- Deck Mechanism Exploded View (Dm19Aa)
  
  89

Advertisement

Advertisement

Related Products

LG Categories

Cell Phone

Monitor

Washer

Air Conditioner

Air Conditioner

More LG Manuals