User Manuals: LG 42SL90QD-AA LED TV

Manuals and User Guides for LG 42SL90QD-AA LED TV. We have 2 LG 42SL90QD-AA LED TV manuals available for free PDF download: Owner's Manual, Service Manual

LG 42SL90QD-AA Owner's Manual

LG 42SL90QD-AA Owner's Manual (164 pages)

LED LCD TV/ LCD TV

Brand: LG | Category: LCD TV | Size: 14.67 MB

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LG 42SL90QD-AA Service Manual

LG 42SL90QD-AA Service Manual (66 pages)

LED LCD TV

Brand: LG | Category: LCD TV | Size: 4.8 MB

Table of Contents

Service Manual
1
Table of Contents
2
Safety Precautions
3
Leakage Current Cold Check
3
Leakage Current Hot Check
3
Important Safety Notice
3
Product Safety
3
Adjustment Instruction
9
- Function Check
  10
- ADC Process
  10
- USB Download
  10
- Total Assembly Line Process
  11
- DDC EDID Write (RGB 128Byte )
  11
- DDC EDID Write (HDMI 256Byte)
  11
- EDID Data
  11
- Auto Download
  12
- Manual Download
  12
Block Diagram
13
Exploded View
14
- Electrical Diagrams
  15
- Repair Processes
  27
- A. Video Error
  27
- No Video/ Normal Audio
  27
- No Video/ no Audio
  28
- A. Picture Problem
  29
- Picture Broken/ Freezing
  29
- Color Error
  30
- Vertical/Horizontal Bar, Residual Image, Light Spot
  31
- External Device Screen Error-Color Error
  31
- No Power
  32
- Power Error
  32
- Off When On, off While Viewing, Power Auto On/Off
  33
- Audio Error
  34
- No Audio/ Normal Video
  34
- Wrecked Audio/ Discontinuation/Noise
  35
- General Function Problem
  36
- Remote Control & Local Switch Checking
  36
- Remote Control (R/C) Operating Error
  36
- Local (Mechanical) Switch Operating Error
  36
- External Device Recognition Error
  37
- Function Error
  37
- Circuit Noise, Mechanical Noise
  38
- Exterior Defect
  39
- LCD TV Repair Process Index
  40
- Trouble Shooting by Input Block (Component Level Check)
  40
- Power-Up Boot Fail
  41
- No OSD
  42
- Digital TV Video Problem
  43
- Analog TV Video Problem
  44
- AV1 (CVBS) no Video Problem
  45
- AV2 (CVBS) no Video Problem
  46
- Component1 no Video/No Color Problem
  47
- Component 2 no Video/No Color Problem
  48
- RGB no Video Problem
  49
- RGB no Color Problem
  50
- HDMI 1~4 All no Video Problem
  51
- HDMI 1 or 2 or 3 or 4 no Video Problem
  52
- All Source no Audio Problem
  53
- Digital TV no Audio Problem
  54
- Analog TV no Audio Problem
  55
- AV1 no Audio Problem
  56
- AV2 no Audio Problem
  57
- Component1 no Audio Problem
  58
- Component2 no Audio Problem
  59
- RGB, HDMI-PC no Audio Problem
  60
- HDMI-DTV no Audio Problem
  61
- SPDIF no Audio Problem
  62
- USB no Connect Problem
  63
- Remote Control Problem
  64
- Intelligent Sensor Problem
  65

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