LG L1718S-BN Service Manual - Page 2

CONTENTS SPECIFICATIONS 2 PRECAUTIONS 3 TIMING CHART 7 DISASSEMBLY 8 BLOCK DIAGRAM 10 DISCRIPTION OF BLOCK DIAGRAM 11 ADJUSTMENT 13 SERVICE OSD 14 TROUBLESHOOTING GUIDE 15 WIRING DIAGRAM 22 EXPLODED VIEW 23 REPLACEMENT PARTS LIST 24 SCHEMATIC DIAGRAM 32 SPECIFICATIONS 1. LCD CHARACTERISTICS Type : TFT Color LCD Module Active Display Area : 17 inch Pixel Pitch : 0.264 (H) x 0.264 (V) Color Depth : 16.2M colors Size : 358.5 (H) x 296.5 (V) x 17.5(D) Electrical Interface : LVDS Surface Treatment : Hard-coating(3H), Haze=25% Anti-Glare treatment 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 (a) For InnoLux MT170EN01 V.7 panel: Left 75°(85°)/Right75°(85°);Top 75°(85°) /Bottom60°(70°) at type CR≥10 (CR≥5) (b) For CLAA170EA07QG panel: Left 70°(85°)/Right70°(85°);Top 63°(85°)/Bottom67°(85°) at type CR≥10(CR≥5) 2-2. Luminance (a) For InnoLux MT170EN01 V.7 panel: 300cd/m2 (Typ.) 250cd/m2 (Min.) (6500k); 200 cd/m2 (Min.)(9300k) (b) For CLAA170EA07QG panel: 290cd/m2 (Typ.) 250cd/m2 (Min.) (6500k);200 cd/m2 (Min.)(9300k) 2-3. Contrast Ratio (a) For InnoLux MT170EN01 V.7 panel: 500:1 minimum; 700:1 Typical (b) For CLAA170EA07QG panel: 400:1 minimum; 500:1 Typical 3. SIGNAL (Refer to the Timing Chart) 3-1. Sync Signal Type : Separate Sync, Composite, SOG (Sync On Green) 3-2. Video Input Signal 1) Type 2) Voltage Level a) Color 0, 0 b) Color 7, 0 Color 15, 0 3) Input Impedance : R, G, B Analog : 0~0.71 V : 0 Vp-p : 0.467 Vp-p c) : 0.714 Vp-p : 75 Ω 3-3. Operating Frequency Horizontal : 30 ~ 83kHz Vertical : 56 ~ 75Hz 4. Max. Resolution D-sub Analog : 1280 x 1024@75Hz 5. POWER SUPPLY 5-1. Power : AC 90~264V, 47.5~63Hz ,