LG LM-U4050A Manuals

Manuals and User Guides for LG LM-U4050A. We have 1 LG LM-U4050A manual available for free PDF download: Service Manual

LG LM-U4050A Service Manual

LG LM-U4050A Service Manual (56 pages)

3CD CHANGER HI-FI SYSTEM

Brand: LG | Category: Stereo System | Size: 8.49 MB

Table of Contents

Table of Contents
2
General
3
Notes Regarding Handling of the Pick-Up
3
Repair Notes
3
Servicing Precautions
3
Esd Precautions
5
Specifications
6
Electrical Troubleshooting Guide
8
- P-Sens Part
  8
- Smps Power Circuit
  8
- Micom (Ic301) Check
  9
- P-Ctrl Check
  9
- Expend IC(Ic305/501/502) State
  10
- Muting Troubleshooting (Mute State)
  10
- Specific Function Mode Has no Sound (Njw1190) Ic601
  11
- Aux
  12
- CD
  12
- MIC
  13
- Tuner
  13
- Amp Module Troubleshooting
  14
- Ic601(Njw1190) Troubleshooting
  14
- Dubbing Check
  16
- Block Diagram
  17
INTERNAL BLOCK DIAGRAM of Ics
17
- Pin Configuration
  19
- Pin Description
  19
Block Diagram
22
- Wma_Usb Block Diagram
  23
- Front Schematic Diagram
  24
- Schematic Diagrams
  24
- Main Schematic Diagram
  25
- Deck Schematic Diagram
  26
- MIC Schematic Diagram
  27
- Usb_Aux2_H/P Schematic Diagram
  28
- Woofer Amp Schematic Diagram
  29
- Amp Schematic Diagram
  30
- Power Schematic Diagram
  31
- Sub Power Schematic Diagram
  33
- Cdp Schematic Diagram
  34
- Usb Schematic Diagram
  35
- Wiring Diagrams
  36
- Main P.C. Board
  37
Printed Circuit Diagrams
37
- Main Amp P.C. Board
  38
- Front P.C. Board
  40
- Cdp P.C. Board
  41
- Power P.C. Board
  43
- Sub Power P.C. Board
  45
- Woofer Amp P.C. Board
  46
Cabinet and Main Frame Section
48
Exploded Views
48
Tape Deck Mechanism (A/R & A/S : Right A/R Deck)
49
Tape Deck Mechanism (A/R & A/S : Left A/R Deck)
50
CD Mechanism
51
Speaker Section
52

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