LG CM4740 Manuals

Manuals and User Guides for LG CM4740. We have 3 LG CM4740 manuals available for free PDF download: Service Manual, Owner's Manual

LG CM4740 Service Manual (67 pages)

Brand: LG | Category: Stereo System | Size: 9.81 MB

Section 1 Summary

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

12
- Exploded Views
  14
Section 3 Electrical

20
- One Point Repair Guide
  
  21
  - Power
    21
  - Booting When Power on the Set
    23
  - Vfd Is Not Displayed When Power on the Set
    24
  - Operation of MD
    26
  - Sound
    31
- Audio Electrical Troubleshooting Guide
  
  36
  - Power (Smps)
    36
  - Mcs Part Check
    39
  - Ic504(M24C16) Check
    39
  - Fld Display Check
    40
  - Pwm Modulation Check
    41
  - Power Amp Part Check
    43
  - Tuner / aux Function Check
    44
  - Tuner Function Check
    45
- Cdp Electrical Troubleshooting Guide
  
  46
  - CD Function
    46
  - Double Usb Function
    47
- Waveforms of Major Check Point
  
  48
  - Sdram
    48
  - Servo
    48
  - Audio Path
    49
  - Usb
    50
- Wiring Diagram
  
  52
- Block Diagrams
  
  53
  - System Block Diagram
    53
  - Smps Block Diagram
    54
  - Audio Path Block Diagram
    55
  - Power Diagram
    56
- Circuit Diagrams
  
  57
  - Smps Circuit Diagram
    57
  - Main - Dsp Circuit Diagram
    58
  - Main - Servo Circuit Diagram
    59
  - Main - Adc/ Pwm Circuit Diagram
    60
  - Main - Amp Circuit Diagram
    61
  - Front Circuit Diagram
    62
- Circuit Voltage Chart
  
  63
  - Ics
    63
  - Capacitors
    64
- Printed Circuit Board Diagrams
  
  65
  - Smps P.C.board
    65
  - Main P.C.board
    66
  - Front P.C.board
    67

LG CM4740 Owner's Manual (32 pages)

Mini Hi-Fi System

Brand: LG | Category: Stereo System | Size: 3.31 MB

Table of Contents
5
Table of Contents
6
Getting Started

7
- Unique Features
  7
- Accesories
  7
- Playable File Requirement
  8
- Music File Requirement
  8
- Compatible USB Devices
  8
- USB Device Requirement
  8
- Remote Control
  9
- Front Panel
  10
- Rear Panel (CM4541)
  12
- Rear Panel (CM4441, CM4341)
  13
Connecting

14
- Connecting to Speakers
  14
- Attaching the Speakers to the Unit
  14
- Attaching the Subwoofer to the Unit
  14
- Antenna Connection
  15
- Optional Equipment Connection
  15
- USB Connection
  15
- AUX in Connection
  16
- PORT. in Connection
  16
Operating

17
- Basic Operations
  17
- CD/USB Operations
  17
Auto Play

17
- Other Operations
  18
- Programmed Playback
  18
- Deleting Programmed List
  18
- Searching for a Folder
  18
Deleting an MP3/WMA File

19
- Turn off the Sound Temporarily
  19
- Displaying File Information
  19
- Demo
  19
- AUTO DJ Playback
  19
Radio Operations

20
- Listening to the Radio
  20
- Presetting the Radio Stations
  20
- Deleting All the Saved Stations
  20
- Improving Poor FM Reception
  20
- Seeing Information about a Radio
  20
- Sound Adjustment
  21
- Setting the Surround Mode
  21
- Setting the Clock
  22
- Setting the Clock through "LG
  22
- Bluetooth Remote" App
  22
- Using Your Player as an Alarm Clock
  22
- Sleep Timer Setting
  22
- Dimmer
  22
- Auto Power down
  22
- Advanced Operations
  23
- Listening to the Sound from Your External Device
  23
- Recording to USB
  23
- To Select Recording Bit Rate and Speed
  23
- Dubbing USB to USB
  23
- Using a Bluetooth Wireless Technology
  24
- Listening to Music Stored on the Bluetooth Devices
  25
- Using Bluetooth App
  26
Troubleshooting

28
Appendix

29
- Specifications
  29
- Speaker Specifications
  30
- Maintenance
  31
- Handling the Unit
  31
- Notes on Discs
  31
- Trademarks and Licenses
  31

LG CM4740 Owner's Manual (30 pages)

Brand: LG | Category: Stereo System | Size: 2.53 MB

Getting Started

2
- Safety Information
  2
- Table of Contents
  5
- Accesories
  7
- Unique Features
  7
- Compatible USB Devices
  8
- Music File Requirement
  8
- Playable File Requirement
  8
- USB Device Requirement
  8
- Battery Installation
  9
- Remote Control
  9
- Front Panel
  10
- Rear Panel (CM4540)
  12
- Rear Panel (CM4440, CM4340)
  13
- Attaching the Speakers to the Unit
  14
- Attaching the Subwoofer to the Unit
  14
Connecting

14
- Connecting to Speakers
  14
- Antenna Connection
  15
- Optional Equipment Connection
  15
- USB Connection
  15
- AUX in Connection
  16
- PORT. in Connection
  16
- Auto Play
  17
- Basic Operations
  17
- CD/USB Operations
  17
Operating

17
- Deleting Programmed List
  18
- Other Operations
  18
- Programmed Playback
  18
- Searching for a Folder
  18
- AUTO DJ Playback
  19
- Deleting an MP3/WMA File
  19
- Demo
  19
- Displaying File Information
  19
- Turn off the Sound Temporarily
  19
- Deleting All the Saved Stations
  20
- Improving Poor FM Reception
  20
- Listening to the Radio
  20
- Presetting the Radio Stations
  20
- Radio Operations
  20
- Seeing Information about a Radio Station
  20
- Setting the Surround Mode
  21
- Sound Adjustment
  21
- Auto Power down
  22
- Dimmer
  22
- Setting the Clock
  22
- Sleep Timer Setting
  22
- Using Your Player as an Alarm Clock
  22
- Advanced Operations
  23
- Dubbing USB to USB
  23
- Listening to the Sound from Your External Device
  23
- Pausing Recording
  23
- Recording to USB
  23
- To Select Recording Bit Rate and Speed
  23
Troubleshooting

25
Appendix

26
- Specifications
  26
- Speaker Specifications
  27
- Handling the Unit
  28
- Maintenance
  28
- Notes on Discs
  28
Warranty

29

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LG CM4740 Manuals

LG CM4740 Service Manual (67 pages)

Table of Contents

Section 1 Summary

1 Mcs Program

2 Eq Program

Section 2 Cabinet & Main Chassis

Section 3 Electrical

One Point Repair Guide

Audio Electrical Troubleshooting Guide

Cdp Electrical Troubleshooting Guide

Waveforms of Major Check Point

Wiring Diagram

Block Diagrams

Circuit Diagrams

Circuit Voltage Chart

Printed Circuit Board Diagrams

LG CM4740 Owner's Manual (32 pages)

Table of Contents

Getting Started

Connecting

Operating

Auto Play

Deleting an MP3/WMA File

Radio Operations

Troubleshooting

Appendix

LG CM4740 Owner's Manual (30 pages)

Table of Contents

Getting Started

Connecting

Operating

Troubleshooting

Appendix

Warranty

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LG Categories