LG L3200A Service Manual - Page 2

CONTENTS SPECIFICATIONS 2 PRECAUTIONS 3 TIMING CHART 7 BLOCK DIAGRAM 9 DESCRIPTION OF BLOCK DIAGRAM 10 ADJUSTMENT 11 SERVICE OSD 13 TROUBLESHOOTING GUIDE 14 WIRING DIAGRAM 21 EXPLODED VIEW 22 REPLACEMENT PARTS LIST 24 SCHEMATIC DIAGRAM 34 SPECIFICATIONS 1. LCD CHARACTERISTICS Type : TFT Color LCD Module Active Display Area : 31.51inches(800.4mm)diagonal Pixel Pitch : 170.25um x 510.75um x RGB Color Depth : 8-bit, 16,777,216 colors Electrical Interface : LVDS Size : 760mm (H) x 450 (D)x48 (D)mm Surface Treatment : Anti-Glare, Hard Coating(3H) Operating Mode : Normally Black Backlight Unit : 20-EEFL 2. OPTICAL CHARACTERISTICS 2-1. Viewing Angle by Contrast Ratio ≥ 10 Left : -85° min., -88°(Typ) Right : +85° min., +88°(Typ) Top : +85° min., +88°(Typ) Bottom : -85° min., -88°(Typ) 2-2. Luminance : 400(min), 500(Typ) 2-3. Contrast Ratio : 400(min), 600(Typ) 3. SIGNAL (Refer to the Timing Chart) 3-1. PC & Video Input 1)Input Form : AV, SVIDEO, Component1, Component2, RGB PC, DVI PC 2)Resolution(max) : Analog -1600 x 1200@60Hz Digital -1280 x 1024@60Hz 3-2. Sync Input Horizontal Vertical Input Form : 30 ~ 83kHz(Digital: 30~72kHz) : 56 ~ 85Hz : Separate, TTL, Positive/Negative Digital 4. SPECIAL FUNCTION 4-1. Audio 1)Output Rating : 10W + 10W(Rated Output ± 10%) 2)Freq. Character : 100Hz~10KHz Range(-3dB) 3)T. H. D : Within 10% 4)Input Sensitivity : 0.700Vrms 5. POWER SUPPLY 5-1. Power Adaptor Input : AC 100~240V, 50/60Hz , 2.8A 5-2. Power Consumption MODE H/V SYNC VIDEO POWER CONSUMPTION LED COLOR POWER ON (NORMAL) ON/ON ACTIVE less than 160 W GREEN STAND-BY OFF/ON OFF less than 4 W AMBER SUSPEND ON/OFF OFF less than 4 W AMBER DPM OFF OFF/OFF OFF less than 4 W AMBER POWER OFF - - less than 2 W OFF 6. ENVIRONMENT 6-1. Operating Temperature: 10°C~35°C 6-2. Operating Humidity : 10%~80% 6-3. MTBF : 50,000 HRS with 90% Confidence level Lamp Life : 50,000 Hours(Min.) 7. DIMENSIONS L3200AC/L3200AKC Width Depth Height : 803 mm (31.61'') : 99.9 mm (3.93'') : 493 mm (19.41'') L3200ATC(with Stand) Width Depth Height : 803 mm (31.61'') : 180 mm (7.09'') : 540 mm (21.26'') L3200AFC(with Speaker/Stand) Width : 964 mm (37.96'') Depth : 180 mm (7.09'') Height : 540 mm (21.26'') 4-2. Speaker 1)TYPE : Detachable 2)Impedance : 8Ϊ 3)Input : Max : 15W, Normal : 10W 8. WEIGHT L3200AC/L3200AKC Net. Weight Gross Weight : 16 kg (35.28 lbs) : 20.9 kg (46.08 lbs) 4-2. AV 1)Video Level : Input : 0.7V 2)Sync Level : Input : 0.286V 3)Color Burst : Input : 0.214V 4)Audio Level : NTSC Input : 0.40V PAL Input : 0.5V PC Input : 0.7V 5)Video Cross Talk : 43dB L3200ATC/L3200AFC(with Speaker/Stand) Net. Weight : 21.1 kg (46.52 lbs) Gross Weight : 26 kg (57.33 lbs) -2-