File name Flatron L1750S_L1950S_CL-82.pdfWebsite:http://biz.LGservice.com E-mail:http://www.LGEservice.com/techsup.html
COLOR MONITOR SERVICE MANUAL
CHASSIS NO. : CL-82
MODEL:
(
L1750S (L1750S-BNN.AN**EP) L1950S (L1950S-BNN.AN**EP)
) **Same model for Service
CAUTION
BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
*To apply the MSTAR Chip.
CONTENTS
SPECIFICATIONS ... 2 PRECAUTIONS ... 3 TIMING CHART ... 7 DISASSEMBLY ... 8 BLOCK DIAGRAM ... 9 DESCRIPTION OF BLOCK DIAGRAM...10 ADJUSTMENT ... 12 SERVICE OSD ... 13 TROUBLESHOOTING GUIDE ... 14 WIRING DIAGRAM ... 18 EXPLODED VIEW...19 REPLACEMENT PARTS LIST ...21 SCHEMATIC DIAGRAM ... 23
SPECIFICATIONS
1. LCD CHARACTERISTICS Type : TFT Color LCD Module Active Display Area : 17 inch-L1750S : 19 inch-L1950S Size : 358.5(W) x 296.5(H) x 17.0(D)-L1750S : 404.2(W) x 330(H) x 22.0(D)-L1950S Pixel Pitch : 0.264 (H) x 0.264 (V)-L1750S : 0.294 (H) x 0.294 (V)-L1950S 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 2. OPTICAL CHARACTERISTICS 2-1. Viewing Angle by Contrast Ratio 10 L1750S Left : -60°min., -70°(Typ) Right : +60°min., +70°(Typ) Top :+45°min., +60°(Typ) Bottom : -50°min., -60°(Typ) L1950S Left : -70°min., -80°(Typ) Right : +70°min., +80°(Typ) Top :+75°min., +85°(Typ) Bottom : -75°min., -85°(Typ) 2-2. Luminance 2-3. Contrast Ratio : 185(min), 250(Typ) : 300(min), 450(Typ)-L1750S : 300(min), 500(Typ)-L1950S 4. Max. Resolution D-sub 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 less than 43 W-L1750S POWER ON (NORMAL) ON/ON ACTIVE STAND-BY SUSPEND DPMS OFF OFF/ON OFF ON/OFF OFF OFF/OFF OFF less than 45 W-L1950S less than 1 W less than 1 W less than 1 W GREEN AMBER AMBER AMBER
6. ENVIRONMENT 6-1. Operating Temperature : 10°C~35°C 6-2. Relative Humidity : 10%~80% 6-3. MTBF : 50,000 HRS with 90% Confidence level Lamp Life : 50,000 Hours(Min) 7. DIMENSIONS (with TILT/SWIVEL) L1750S Width : 368 mm (14.49'') Depth : 230.5 mm (9.07'') Height : 389.2 mm (15.32'') L1950S Width Depth Height
3. SIGNAL (Refer to the Timing Chart) 3-1. Sync Signal · Type : Separate Sync, SOG 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
: 413 mm (16.26'') : 230.5 mm (9.07'') : 421.4 mm (16.59'') |