Table Of Contents; Specifications - LG Flatron L1750H Service Manual

SPECIFICATIONS ................................................... 2
PRECAUTIONS ....................................................... 4
TIMING CHART ....................................................... 8
DISASSEMBLY ....................................................... 9
BLOCK DIAGRAM ................................................. 10
DESCRIPTION OF BLOCK DIAGRAM....................11
ADJUSTMENT ...................................................... 13
1. LCD CHARACTERISTICS
Type : TFT Color LCD Module
Active Display Area : 17inch diagonal - L1750H
: 19inch diagonal - L1950H
Pixel Pitch : 0.264(H) x 0.264(V) - L1750H
: 0.294(H) x 0.294(V) - L1950H
Size : 358.5(W) x 296.5(H) x 17.0(D) - L1750H
: 404.2(W) x 330(H) x 22.0(D) - L1950H
Color Depth :16.2M colors
Electrical Interface : LVDS
Surface Treatment : Anti-Glare, Hard Coating(3H)
Operating Mode : Normally White, Transmissive mode
Backlight Unit : 4-CCFL (Cold Cathode
2. OPTICAL CHARACTERISTICS
2-1. Viewing Angle by Contrast Ratio ≥ 10
L1750H
Left : -60° min., -70 Typ Right
Top :+45° min., +60 Typ Bottom : -50° min., -60 Typ
L1950H
Left : -70° min., -80 Typ Right
Top :+75° min., +85 Typ Bottom : -75° min., -85 Typ
2-2. Luminance : 185(min), 250(Typ)
2-3. Contrast Ratio : 300(min), 450(Typ) - L1750H
: 300(min), 500(Typ) - L1950H
3. SIGNAL (Refer to the Timing Chart)
3-1. Sync Signal
• Type : Separate Sync, Digital, SOG (Sync On Green)
3-2. Video Input Signal
1) Type
2) Voltage Level
a) Color 0, 0
b) Color 7, 0
c) Color 15, 0
3) Input Impedance
3-3. Operating Frequency
Horizontal(Analog)
Horizontal(Digital)
Vertical

SPECIFICATIONS

Fluorescent Lamp)
: +60° min., +70 Typ
: +70° min., +80 Typ
: R, G, B Analog
: 0~0.7 V
: 0 Vp-p
: 0.35 Vp-p
: 0.7 Vp-p
: 75 Ω
: 30 ~ 83kHz
: 30 ~ 71kHz
: 56 ~ 75Hz
CONTENTS
SERVICE OSD ...................................................... 14
TROUBLESHOOTING GUIDE .............................. 15
WIRING DIAGRAM ................................................19
EXPLODED VIEW...................................................20
REPLACEMENT PARTS LIST ...............................22
SCHEMATIC DIAGRAM ......................................... 24
4. MAX. RESOLUTION
D-sub Analog
DVI Digital
5. POWER SUPPLY
5-1. Power Adaptor(Built-in Power)
Input
5-2. Power Consumption
MODE
POWER ON (NORMAL)
STAND-BY
SUSPEND
DPMS OFF
POWER S/W OFF
6. ENVIRONMENT
6-1. Operating Temperature : 10°C~35°C
6-2. Relative Humidity
6-3. MTBF
Lamp Life
7. DIMENSIONS (with TILT/SWIVEL)
L1750H
Width
Depth
Height
L1950H
Width
Depth
Height
8. WEIGHT (with TILT/SWIVEL)
L1750H
Net. Weight
Gross Weight
L1950H
Net. Weight
Gross Weight
- 2 -
: 1280 x 1024@75Hz
: 1280 x 1024@60Hz
: AC 100~240V, 50/60Hz , 1.0A
VIDEO POWER CONSUMPTION
H/V SYNC
less than 43 W-L1750H
ON/ON ACTIVE
less than 45 W-L1950H
OFF
OFF/ON less than 1 W
ON/OFF OFF
less than 1 W
OFF
less than 1 W
OFF/OFF
-
-
less than 1W
: 10%~80%
: 50,000 HRS with 90% Confidence level
: 50,000 Hours(Min) - L1750H
: 40,000 Hours(Min) - L1950H
: 368 mm (14.49'')
: 242.6 mm (9.55'')
: 421.8 mm (16.61'')
: 413 mm (16.26'')
: 242.6 mm (9.55'')
: 437.2 mm (17.21'')
: 6.0kg (13.23 lbs)
: 7.9kg (17.42 lbs)
: 6.7kg (14.77 lbs)
: 9.4kg (20.73 lbs)
LED COLOR
GREEN
AMBER
AMBER
AMBER
OFF