LG W1943SB, Service Manual, Page: 2 / 42

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CONTENTS
SPECIFICATIONS ...................................................2
PRECAUTIONS .......................................................3
TIMING CHART .......................................................7
DISASSEMBLY ........................................................8
BLOCK DIAGRAM...................................................11
DISCRIPTION OF BLOCK DIAGRAM .................. 13
ADJUSTMENT ...................................................... 15 SERVICE MODE ......................................................... 17
TROUBLESHOOTING GUIDE .............................. 18
WIRING DIAGRAM ................................................... 24
EXPLODED VIEW...................................................... 25
REPLACEMENT PARTS LIST ................................. 27
DIFFERENT PARTS LIST….
......................................... 34
SCHEMATIC DIAGRAM ......................................... 35
SPECIFICATIONS
1. LCD CHARACTERISTICS
Type: matrix-TFT Color LCD Module
Active Display Area: 18.51 inches
Pixel Pitch: 0.3 (H) x 0.3 (V)mm
Color Depth: 16.7M colors
Size: 430.4(H) x 254.6(V) x 13.0(D) mm(Typ.)
Interface: LVDS 1Port
Surface Treatment: Hard-coating(3H), Anti-Glare
Operating Mode: Normally White, Transmissive
mode
Backlight unit: 2 CCFL
2. OPTICAL CHARACTERISTICS
2-1. Viewing Angle by Contrast Ratio > 10
Left : 70°min, 85°(Typ) Right : 70°min, 85°(Typ)
Top :60° min, 75°(Typ) Bottom : 70°min,85°(Typ)
2-2.Luminance :250Cd / m
2
(min), 300Cd / m
2
(Typ)
- 6500K ; 170Cd / m
2
(min) - 9300K
2-3. Contrast Ratio : 600(min), 1000(Typ)
3. SIGNAL (Refer to the Timing Chart)
3-1. Sync Signal
Type: Separate Sync, SOG (Sync On Green)
3-2. Video Input Signal
1) Type: R, G, B Analog
2) Voltage Level: 0~0.7 Vp-p
3) Input impedance: 75
Ω
3-3. Operating Frequency
Horizontal: 30 ~ 83kHz
Vertical: 56 ~ 75Hz
4. Max. Resolution
D-sub Analog: VESA 1360 x 768 @ 60 Hz
5. POWER SUPPLY
5-1. Power: AC 100-240V~ 50/60Hz 0.8A
5-2. Power Consumption
On Mode: 21 W(Typ.)
Sleep Mode:
≤ 1 W
Off Mode: ≤ 1 W
6. ENVIRONMENT
6-1. Operating
Temperature: 10°C~35°C
Humidity: 10 % to 80 % non-Condensing
6-2. Storage
Temperature: -20°C to 60 °C
Humidity: 5 % to 90 % non-Condensing
6-3. MTBF: 70000 Hours (Not include panel)
Lamp Life:
≤ 50000 Khrs
7. DIMENSIONS (with Stand)
Width: 44.90 cm (17.68 inches)
Depth: 18.30 cm (7.20 inches)
Height: 29.05 cm (11.44 inches)
8. WEIGHT (excl. packing)
Weight: 3.3 kg (7.28 lbs)
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