Table Of Contents; Specifications - LG FLATRON L1930SQ Service Manual

SPECIFICATIONS ................................................... 2
PRECAUTIONS ....................................................... 3
SERVICE PRECAUTIONS ...................................... 4
TIMING CHART ....................................................... 7
DISASSEMBLY .........................................................8
WIRING DIAGRAM ............................................... 10
BLOCK DIAGRAM ................................................. 11
1. LCD CHARACTERISTICS
Type : TFT XGA LCD Module
Size : 404.2(H) x 330.0(V) x 20.0(D)
Pixel Pitch : 0.294mm x 0.294mm
Color Depth : 16.2M colors
Active Video Area : 19.0inch (481.84mm) diagonal
Surface Treatment : Anti-Glare, Hard Coating (3H)
Backlight Unit : 4CCFL
Opraating Mode : Transmissive mode, Normally white
Electrical Interface : LVDS interface
2. OPTICAL CHARACTERISTICS
2-1. Viewing Angle by Contrast Ratio ≥ 10
Left : -60° min. -70° typ.
Top : +65° min. +75° typ.
2-2. Luminance
: 200(min.), 250(typ.) at Center point
2-3. Contrast Ratio :
300(min.), 500(typ.)
3. SIGNAL (Refer to the Timing Chart)
3-1. Sync Signal
1) Type : Separate Sync. (Horizontal & Vertical)
2) Input Voltage Level
3) Sync Polarity
3-2. Video Input Signal
1) Type
2) Voltage Level
3) Input Impedance
3-3. Operating Frequency
Horizontal
Vertical
CONTENTS

SPECIFICATIONS

Right: +60° min. +70° typ.
Bottom: -55° min. -65° typ.
: Low=0~0.8V, High=2.1~5.5V
: Positive or Negative
: R, G, B Analog
: 0~0.7 V
: 75 Ω
: 30 ~ 83kHz
: 56 ~ 75Hz
DESCRIPTION OF BLOCK DIAGRAM ................. 12
ADJUSTMENT ...................................................... 14
TROUBLESHOOTING GUIDE .............................. 16
EXPLODED VIEW...................................................20
REPLACEMENT PARTS LIST ...............................22
SCHEMATIC DIAGRAM ......................................... 24
4. POWER SUPPLY
4-1. Power
100-240V~, 50/60Hz 0.6A
4-2. Power Consumption
H/V SYNC
MODE
ON/ON
POWER ON (NORMAL)
OFF/ON
STAND-BY
ON/OFF
SUSPEND
OFF
DPM OFF
POWER S/W OFF
5. ENVIRONMENT
5-1. Operating Temperature
5-2. Operating Humidity
5-3. MTBF : 50,000 HRS (Min.)
Lamp Life : 40,000 Hours (Min.)
6. DIMENSIONS (with TILT / with Base)
Width
Depth
Height
7. WEIGHT (with TILT)
Net. Weight
Gross Weight
- 2 -
VIDEO
POWER CONSUMPTION
ACTIVE less than 43 W
OFF less than 2 W
less than 2 W
OFF
less than 2 W
OFF
- less than 1 W
-
: 10°C~35°C (50°F~95°F)
: 10%~80%
: 444.4mm (17.50'')
: 108.7mm (4.28'')
: 423.8mm (16.68'')
: 6.5kg (14.33 lbs)
: 8.8kg (19.40 lbs)
LED COLOR
GREEN
AMBER
AMBER
AMBER
OFF