LG Flatron L1720B, Service Manual

Page: 4 / 30

1. LCD CHARACTERISTICS
Type : TFT SXGA LCD
Size : 17 inch
Pixel Pitch : 0.264 (H) x 0.264 (V)
Color Depth : 16.2M colors
Electrical Interface : LVDS
Surface Treatment : Hard-coating(3H), Anti-Glare
Operating Mode : Normally White, Transmissive mode
Backlight Unit : Top/Bottom edge side 4-CCFL
(Cold Cathode Fluorescent Lamp)
2. OPTICAL CHARACTERISTICS
2-1. Viewing Angle by Contrast Ratio
≥
10
Left : -60° min., -70°(Typ) Right : +60° min., +70°(Typ)
Top :+45° min., +60°(Typ) Bottom : -45°min., -60°(Typ)
2-2. Luminance : 200(min), 250(Typ)
2-3. Contrast Ratio : 300(min), 450(Typ)
3. SIGNAL (Refer to the Timing Chart)
3-1. Sync Signal
• Type : Separate Sync,
SOG (Sync On Green)
Composite Sync
3-2. Video Input Signal
1) Type : R, G, B Analog
2) Voltage Level : 0~0.71 V
a) Color 0, 0 : 0 Vp-p
b) Color 7, 0 : 0.467 Vp-p
c) Color 15, 0 : 0.714 Vp-p
3) Input Impedance : 75
Ω
3-3. Operating Frequency
Horizontal : 30 ~ 83kHz
Vertical : 56 ~ 75Hz
4
.
Max. Resolution
Analog : 1280 x 1024 / 75Hz
5. POWER SUPPLY
5-1. Power : AC 100-240V~, 50/60Hz , 1.0A
5-2. Power Consumption
6. ENVIRONMENT
6-1. Operating Temperature: 10°C~35°C (50°F~95°F)
(Ambient)
6-2. Relative Humidity : 10%~80%
(Non-condensing)
6-3. MTBF : 50,000 Hours(Min)
7. DIMENSIONS (with TILT/SWIVEL)
FullUp Position
Width : 394 mm (15.51'')
Depth : 232 mm (9.13'')
Height : 379 mm (14.92'')
Folded Position
Width : 394mm (15.51'')
Depth : 127mm (9.13'')
Height : 412mm (14.92'')
8. WEIGHT (with TILT/SWIVEL)
Net. Weight : 4.5 kg (9.92 lbs)
Gross Weight : 7.6 kg (16.76 lbs)
CONTENTS
SPECIFICATIONS
- 2 -
SPECIFICATIONS ................................................... 2
PRECAUTIONS ....................................................... 3
TIMING CHART ....................................................... 4
OPERATING INSTRUCTIONS ................................ 5
WIRING DIAGRAM ................................................. 6
BLOCK DIAGRAM ................................................... 7
DESCRIPTION OF BLOCK DIAGRAM.....................8
ADJUSTMENT ...................................................... 10
TROUBLESHOOTING GUIDE .............................. 12
EXPLODED VIEW...................................................16
REPLACEMENT PARTS LIST ...............................18
PIN CONFIGURAION..............................................20
SCHEMATIC DIAGRAM ......................................... 21
MODE
POWER ON (NORMAL)
STAND-BY
SUSPEND
DPMS OFF
H/V SYNC
ON/ON
OFF/ON
ON/OFF
OFF/OFF
POWER CONSUMPTION
less than 43 W
less than 1 W
less than 1 W
less than 1 W
LED COLOR
BLUE
AMBER
AMBER
AMBER
VIDEO
ACTIVE
OFF
OFF
OFF