Read LG 55LV4400 LC550EUH-RDA2-8R1 Service Manual online
MODEL : 55LV4400_LC550EUH-RDA2-8R1
P/NO：SG-0000039 (REV01) Printed in Taiwan
55LV4400 Service Manual
Table of Contents
CONTENTS PAGE
Sections
1. Features
1-1
2. Specifications
2-1
3. On Screen Display
3-1
4. Factory Preset Timings
4-1
5. Pin Assignment
5-1
6. Main Board I/O Connections
6-1
7. Theory of Circuit Operation
7-1
8. Waveforms
8-1
9. Trouble Shooting
9-1
10. Block Diagram
10-1
11. Spare parts list
11-1
12. Complete Parts List
12-1
Appendix
1. Main Board Circuit Diagram
2. Main Board PCB Layout
3. Assembly Explosion Drawing
CONFIDENTIAL – DO NOT COPY
Page 1-1
File No. SG-0000039
Chapter 1 Features
1. Built in TV channel selector for TV viewing.
2. Simultaneous display of PC and TV images.
3. Connectable to PC’s analog RGB port.
4. Built in HDTV, composite video, HDMI, ATV and DTV, Audio line out, Audio
optical out.
5. Built in auto adjust function for automatic
adjustment of screen display.
6. High quality 1920X1080 pixel by pixel display.
7. Smoothing function enables display of smooth texts and graphics even if
image with resolution lower than 1920X1080 is magnified.
8. Advanced video functions for personal favor.
9. Picture In Picture (PIP) function to show TV or VCR images.
10. Power saving to reduce consumption power too less than 1W.
11. On Screen Display: user can define display mode (i.e. color, brightness,
contrast, sharpness, backlight), sound setting, PIP, TV channel program,
aspect and gamma or reset all setting.
CONFIDENTIAL – DO NOT COPY
Page 2-1
File No. SG-0000039
Chapter 2 Specification
1. TFT-LCD CHARACTERISTICS
Model Name:
Model Name:
LGD LC550EUH-SDA1
(Vendor: LG. Philips LCD Co., Ltd)
Item Specification
Active Screen Size
54.64 inches(1387.8mm) diagonal
Outline Dimension
1255.6(H) x 726.4(V) x 10.8 (D) (Typ.)
Pixel Pitch
0.630 mm x 0.630 mm
Pixel Format
1920 horiz. by 1080 vert. Pixels, RGB stripe arrangement
Color Depth
8-bit, 16.7 M colors (※ 1.06B colors @ 10 bit (D) System
Output)
Output)
Drive IC Data Interface
Source D-IC
Source D-IC
8-bit mini-LVDS, and control signals TTL
Gate D-IC
Line on Glass (LOG) Through Source D-IC
Luminance, White
400 cd/m2 (Center 1point,Typ.)
Viewing Angle (CR>10)
Viewing angle free ( R/L 178 (Min.), U/D 178 (Min.))
Power Consumption
Total 126.1 W (Typ.) [(Logic=6.1W, Backlight=120W
(ExtVbr_B=100%))
(ExtVbr_B=100%))
Weight 14.5Kg
(Typ.)
Display Mode
Transmissive mode, Normally black
Surface Treatment
Hard coating(3H), Anti-glare treatment of the front polarizer
(Haze 10%)
(Haze 10%)
2. Input Connectors
1x Co-axial RF (ATSC/QAM/NTSC)
3x HDMI™** with HDCP
1x Component YPbPr plus Stereo Audio
3x HDMI™** with HDCP
1x Component YPbPr plus Stereo Audio
(Composite Video/Audio share with component YPbPr)
1x RGB PC plus Stereo Audio
Service port (USB)
Multi Media (USB) (shared with Service port)
Service port (USB)
Multi Media (USB) (shared with Service port)
3. Output Connectors
SPDIF Out (Optical Audio) , Phone Jack (Audio OUT)
SPDIF Out (Optical Audio) , Phone Jack (Audio OUT)