Table Of Contents; Specifications - LG Flatron L1751S-SN Service Manual

SPECIFICATIONS ................................................... 2
PRECAUTIONS ....................................................... 3
TIMING CHART ....................................................... 7
DISASSEMBLY ....................................................... 8
BLOCK DIAGRAM ................................................... 9
DESCRIPTION OF BLOCK DIAGRAM...................10
ADJUSTMENT ...................................................... 12
1. LCD CHARACTERISTICS
Type : TFT Color LCD Module
Active Display Area : 17 inch diagonal-L1751S
: 19 inch diagonal-L1951S
Pixel Pitch : 0.264 (H) x 0.264 (V)-L1751S
: 0.294 (H) x 0.294 (V)-L1951S
Size : 358.5 (W) x 296.5 (H) x 17.0 (D)-L1751S
: 404.2 (W) x 330 (H) x 22.0 (D)-L1951S
Color Depth : 16.2M colors
Electrical Interface : LVDS
Surface Treatment : Hard-coating(3H), Anti-Glare
Operating Mode : Normally White, Transmissive mode
Backlight Unit : 4-CCFL(Cold Cathode Fluorescent Lamp)
2. OPTICAL CHARACTERISTICS
2-1. Viewing Angle by Contrast Ratio ≥ 10
L1751S
Left : -60° min., -70°(Typ)
Top :+45° min., +60°(Typ) Bottom : -50°min., -60°(Typ)
L1951S
Left : -70° min., -80°(Typ)
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)-L1751S
: 300(min), 500(Typ)-L1951S
3. SIGNAL (Refer to the Timing Chart)
3-1. Sync Signal
• Type : Separate Sync, SOG (Sync On Green),
Composite
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
Vertical

SPECIFICATIONS

Right : +60° min., +70°(Typ)
Right : +70° min., +80°(Typ)
: R, G, B Analog
: 0~0.71 V
: 0 Vp-p
: 0.467 Vp-p
: 0.714 Vp-p
: 75 Ω
: 30 ~ 83kHz
: 56 ~ 75Hz
CONTENTS
SERVICE OSD ...................................................... 13
TROUBLESHOOTING GUIDE .............................. 14
WIRING DIAGRAM ............................................... 18
EXPLODED VIEW...................................................19
REPLACEMENT PARTS LIST ...............................21
SCHEMATIC DIAGRAM ......................................... 23
4. Max. Resolution
Analog
5. POWER SUPPLY
5-1. Power : AC 100~240V, 50/60Hz , 1.0A
5-2. Power Consumption
MODE
POWER ON (NORMAL)
STAND-BY
SUSPEND
DPMS 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)
L1751S
Width
Depth
Height
L1951S
Width
Depth
Height
8. WEIGHT (with TILT/SWIVEL)
L1751S
Net. Weight
Gross Weight
L1951S
Net. Weight
Gross Weight
- 2 -
: 1280 x 1024 / 75Hz
H/V SYNC VIDEO POWER CONSUMPTION
less than 43 W-L1751S
ACTIVE
ON/ON
less than 45 W-L1951S
OFF/ON OFF less than 1 W
ON/OFF less than 1 W
OFF
OFF
OFF/OFF less than 1 W
(Ambient)
: 10%~80%
(Non-condensing)
: 50,000 HRS wiht 90% Confidence level
: 50,000 Hours (min)
: 368 mm (14.49'')
: 230.5 mm (9.07'')
: 389.2 mm (15.32'')
: 413 mm (16.26'')
: 230.5 mm (9.07'')
: 421.4 mm (16.59'')
: 4.9 kg (10.80 lbs)
: 6.5 kg (14.33 lbs)
: 5.7 kg (12.57 lbs)
: 7.9 kg (17.42 lbs)
LED COLOR
GREEN
AMBER
AMBER
AMBER