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File name LG L1919S_Chassis LM57A.pdf

Website:http://biz.LGservice.com E-mail:http://www.LGEservice.com/techsup.html COLOR MONITOR SERVICE MANUAL CHASSIS NO. : LM57A MODEL: ( L1719S (L1719S-BFQ.A**BEP,A**DEP,A**XEP,A**ZEP) L1919S (L1919S-BFQ.A**DEP,A**GEP,A**REP,A**WEP,A**XEP) ) **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...12 DISCRIPTION OF BLOCK DIAGRAM ... 14 ADJUSTMENT ... 16 SERVICE OSD ...17 TROUBLESHOOTING GUIDE ... 18 WIRING DIAGRAM ... 24 EXPLODED VIEW...25 REPLACEMENT PARTS LIST ...28 SCHEMATIC DIAGRAM ... 32 SPECIFICATIONS 1. LCD CHARACTERISTICS Type : TFT Color LCD Module Active Display Area : 17 inch - L1719S : 19 inch - L1919S Pixel Pitch : 0.264 (H) x 0.264 (V) - L1719S : 0.294 (H) x 0.294 (V) - L1919S Color Depth : 8bits, 16.2M colors Size : 358.5 (H) x 296.5 (V) x 17.0(D) - L1719S : 396 (H) x 324 (V) x 17.5(D) - L1919S 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 Left : -70° min., -80°(Typ) Right : +70° min., +80°(Typ) Top :+60° min., +75°(Typ) Bottom : -70° min., -85°(Typ) 2-2. Luminance 2-3. Contrast Ratio : 250(min), 300(Typ) (Full White pattern, 0.7V) -6500K : 150(min) (Full White pattern, 0.7V) -9300K : 500(min), 700(Tye) 7. DIMENSIONS (with TILT/SWIVEL) L1719S Width : 375 mm (14.76'') Depth : 180.3 mm (7.10'') Height : 380.2 mm (14.97'') L1919S Width Depth Height : 414.15 mm (16.31'') : 180.3 mm (7.10'') : 413.2 mm (16.27'') 5. POWER SUPPLY 5-1. Power : AC 100~240V, 50/60Hz , 0.8A 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 ON/ON ACTIVE OFF/ON ON/OFF less than 30 W -L1719S less than 33 W -L1919S less than 1 W less than 1 W less than 1 W less than 1 W GREEN AMBER AMBER AMBER OFF OFF OFF OFF/OFF OFF - - 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 HRS with 90% Confidence Lamp Life : 50,000 Hours(Min) 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