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  LG Electronics Components Datasheet  


L1720B

COLOR MONITOR SERVICE MANUAL



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L1720B pdf
Website:http://biz.LGservice.com
E-mail:http://www.LGEservice.com/techsup.html
COLOR MONITOR
SERVICE MANUAL
CHASSIS NO. : CL-43
MODEL:
L1720B (L1720BL-AL**R)
( ) **Same model for Service
CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
*To apply the Mstar Chip.
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L1720B pdf
CONTENTS
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 .............................. 11
PRINTED CIRCUIT BOARD................................... 15
EXPLODED VIEW...................................................17
REPLACEMENT PARTS LIST ...............................19
SCHEMATIC DIAGRAM ......................................... 22
SPECIFICATIONS
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)
Operating Mode
: Normally White
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 :+50° min., +60°(Typ) Bottom : -45°min., -60°(Typ)
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
MODE
H/V SYNC VIDEO POWER CONSUMPTION LED COLOR
POWER ON (NORMAL) ON/ON ACTIVE less than 40 W
BLUE
STAND-BY
OFF/ON OFF
less than 2 W
AMBER
SUSPEND
ON/OFF OFF
less than 2 W
AMBER
DPMS OFF
OFF/OFF OFF
less than 2 W
AMBER
2-2. Luminance
: 200(min), 250(Typ)
2-3. Contrast Ratio : 300(min), 400(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
2) Voltage Level
a) Color 0, 0
b) Color 7, 0
c) Color 15, 0
3) Input Impedance
: R, G, B Analog
: 0~0.71 V
: 0 Vp-p
: 0.467 Vp-p
: 0.714 Vp-p
: 75
3-3. Operating Frequency
Horizontal
: 30 ~ 83kHz
Vertical
: 56 ~ 75Hz
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
Depth
Height
: 394mm (15.51'')
: 127mm (9.13'')
: 412mm (14.92'')
8. WEIGHT (with TILT/SWIVEL)
Net. Weight
Gross Weight
: 4.5 kg (9.92 lbs)
: 7.6 kg (16.76 lbs)
-2-
Free Datasheet http://www.0PDF.com



Part Number L1720B
Description COLOR MONITOR SERVICE MANUAL
Maker LG - LG
Total Page 28 Pages
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