Table Of Contents; Specifications - LG FLATRON W1954TQ Service Manual

SPECIFICATIONS ................................................... 2
PRECAUTIONS ....................................................... 4
TIMING CHART ....................................................... 8
DISASSEMBLY ........................................................ 9
BLOCK DIAGRAM ................................................. 10
DESCRIPTION OF BLOCK DIAGRAM...................11
1. LCD CHARACTERISTICS
Type : TFT Color LCD Module
Active Display Area : 19 inch diagonal
Pixel Pitch : 0.2835(H) x 0.2835 (V)
Size : 428.0(H) x 278.0(V) x 16.5(D)
Color Depth : 16.7M colors
Electrical Interface : LVDS
Surface Treatment : AG(Haze 25%), Hard Coating(3H)
Operating Mode : Normally White
Backlight Unit : 4 CCFL
2. OPTICAL CHARACTERISTICS
2-1. Viewing Angle by Contrast Ratio ≥5
Left : +80° min., +75°(Typ) Right
Top : +70° min., +70°(Typ) Bottom : -80° min., -85°(Typ)
2-2. Luminance : 180(Typ) (Typ. 10)-sRGB
: 220(min), 300(Typ)-6500K
: 150(min)-9300K
2-3. Contrast Ratio : 700(min), 1000(Typ)
DFC -> 50000 : 1 (Typ)
3. SIGNAL (Refer to the Timing Chart)
3-1. Sync Signal
• Type : Separate Sync, SOG, Digital
3-2. Video Input Signal
1) Type
2) Voltage Level
3) Input Impedance
3-3. Operating Frequency
Horizontal
Vertical
Copyright 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
CONTENTS

SPECIFICATIONS

: -75° min., -88°(Typ)
: R, G, B Analog
: 0~0.7 V
: 75 Ω
: 30 ~ 83kHz
: 56 ~ 75Hz
ADJUSTMENT ...................................................... 13
TROUBLESHOOTING GUIDE .............................. 15
EXPLODED VIEW...................................................19
SCHEMATIC DIAGRAM ..........................................20
4. MAX. RESOLUTION
Analog
: 1440 x 900 @75 Hz
Digital
: 1440 x 900 @60 Hz
5. POWER SUPPLY
5-1. Power Adaptor(Built-in Power)
Input : AC 100-240V~, 50/60Hz, 0.8A
5-2. Power Consumption
MODE H/V SYNC
POWER ON (NORMAL) ON/ON
STAND BY OFF/ON
SUSPEND ON/OFF
DPMS OFF
OFF/OFF
POWER S/W OFF -
6. ENVIRONMENT
6-1. Operating Temperature : 10°C~35°C (50°F~95°F)
6-2. Relative Humidity
6-3. MTBF
Lamp Life
7. DIMENSIONS (with TILT/SWIVEL)
Width
Depth
Height
8. WEIGHT (with TILT/SWIVEL)
Net. Weight
Gross Weight
- 2 -
POWER CONSUMPTION LED COLOR
VIDEO
less than 39 W(max)
ACTIVE
less than 36 W(typ)
Flicker
OFF less than 1 W
Flicker
OFF less than 1 W
less than 1 W Flicker
OFF
- less than 1 W
: 10%~80% (Non-condensing)
: 50,000 HRS with 90%
Confidence level
: 50,000 Hours (Min)
: 45.05 cm (17.73 inches)
:
38.09 cm (14.99 inches)
:
18.30 cm
(7.20 inches)
: 3.33 kg (7.34 lbs)
)+#/@A<!!+#? BCD=
:
LGE Internal Use Only
Red
OFF