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File name _L194WT-S_BFQ_E_.pdf

Website:http://biz.LGservice.com E-mail:http://www.LGEservice.com/techsup.html COLOR MONITOR SERVICE MANUAL CHASSIS NO. : LM57G MODEL: ( L194WT(L194WT-SFQ.A**RQF) L194WT(L194WT-BFQ.A**RQF) ) **Same model for Service CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. CONTENTS SPECIFICATIONS ... 2 PRECAUTIONS ... 4 TIMING CHART ... 8 DISASSEMBLY ... 9 BLOCK DIAGRAM ... 10 DESCRIPTION OF BLOCK DIAGRAM...12 ADJUSTMENT ... 13 TROUBLESHOOTING GUIDE ... 15 WIRING DIAGRAM ... 19 EXPLODED VIEW...20 REPLACEMENT PARTS LIST ...22 SCHEMATIC DIAGRAM ... 26 SPECIFICATIONS 1. LCD CHARACTERISTICS Type : TFT Color LCD Module Active Display Area : 19 inch diagonal Pixel Pitch : 0.2835 (H) x 0.2835 (V) Size : 428(H) x 278(V) x 18.5(D) Color Depth : 16.2M(6bit + FRC) colors Electrical Interface : LVDS Surface Treatment : Anti-Glare, Hard Coating(3H) Operating Mode : Transmissive mode,Normally White Backlight Unit : 4 CCFL 2. OPTICAL CHARACTERISTICS 2-1. Viewing Angle by Contrast Ratio 5 Left : -85°(Typ) Top : +85°(Typ) 2-2. Luminance Right : +85°(Typ) Bottom : -75°(Typ) : 180(Typ) (Typ. ±30) : 230(min), 300(Typ)-6500K : 150(min)-9300K : 450(min), 700(Typ) DFC -> 2000 : 1(Typ) 4. MAX. RESOLUTION Analog Digital : 1440 x 900@75Hz : 1440 x 900@60Hz 5. POWER SUPPLY 5-1. Power Adaptor(Built-in Power) Input : AC 100-240V~, 50/60Hz, 1.2A 5-2. Power Consumption MODE POWER ON (NORMAL) STAND BY SUSPEND DPMS OFF POWER S/W OFF H/V SYNC VIDEO POWER CONSUMPTION LED COLOR less than 37 W(max) ON/ON OFF/ON ON/OFF OFF/OFF ACTIVE OFF OFF OFF BLUE less than 34 W(typ) less than 1 W less than 1 W less than 1 W less than 1 W AMBER AMBER AMBER OFF 2-3. Contrast Ratio 6. ENVIRONMENT 6-1. Operating Temperature : 10°C~35°C (50°F~95°F) 6-2. Relative Humidity : 10%~80% (Non-condensing) 6-3. MTBF : 50,000 HRS with 90% Confidence level Lamp Life : 40,000 Hours (Min) 7. DIMENSIONS (with TILT/SWIVEL) Width Depth Height : 434.8 mm (17.12'') : 226 mm (8.90'') : 369.9 mm (14.56'') 3. SIGNAL (Refer to the Timing Chart) 3-1. Sync Signal · Type : Separate Sync, SOG, Digital 3-2. Video Input Signal 1) Type 2) Voltage Level 3) Input Impedance 3-3. Operating Frequency Horizontal Vertical : R, G, B Analog : 0~0.7 V : 75 : 30 ~ 83kHz : 50 ~ 75Hz 8. WEIGHT (with TILT/SWIVEL) Net. Weight Gross Weight : 3.6 kg (7.94 lbs) : 4.8 kg (10.58 lbs) -2- Signal Connector Pin Assignment · DVI-D Connector (Digital) Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Signal (DVI-D) T. M. D. S. Data2T.