BEJL1755TTLCD Monitor

Make sure to read t he Im portant Precautions before using the product. Keep the User's Guide(CD) in an ac cessible place for future reference. See the label attached on t he product and give the information to your dealer when you ask for service. L1755T User’s Guide A1 This unit has been engineered and manufactured to ensure your personal safet y, however improper use may result in potential electrical shock or fire hazards. In order to allow the proper operation of all safeguards incorporated in this display, observe the following basic rules for its installation, use, and servicing. On Safety Us e only t he power cord su pp lied with th e uni t. In cas e you use ano ther powe r cord, make sur e t hat i t i s certifi ed b y the applic able nation al st and ards if not being provided by the s up plier. If th e po wer cable is faul ty in any way, ple ase con tac t the manufacturer or t he n earest au tho rized rep air service p rovider fo r a repl acemen t. The power supply c ord is u sed a s the mai n di sc onne cti on d evi ce. En sur e t hat th e sock et-o utlet is easil y a ccessible afte r in st all atio n. Op erate th e di splay onl y from a po wer sour ce indi cated i n t he spe cifi cation s o f this m anu al or listed on the displa y. If you are not su re wh at type of powe r suppl y you ha ve in y our home, consult with your de aler . Ov erlo aded AC outl ets and exten sion cord s are d ange rou s. So are frayed p ower cords and brok en pl ugs . T he y m ay re sul t in a s ho ck or fi re h azard . C all you r serv ice te chnician for repla cem ent . Do n ot Ope n th e Di splay . There are no u ser servicea ble compo nent s insi de. There are Dange rou s Hig h Voltages inside, even when the p ower is OF F. Co ntact your dealer if the dis play i s not ope rating pro perl y. To A void Personal Injury : Do n ot pla ce th e di splay on a slo ping shel f u nless prop erl y secured . Us e only a stand r ecommende d by the manu facture r. Do n ot dro p a n obj ect on o r appl y im pact to the p rodu ct. Do no t t hro w any t oys or o bjects o n the pro du ct sc re en . It can caus e injury to hum an, p roblem to pr odu ct an d d amage the dis play. To Prevent Fire or Hazards : Always turn t he dis play O FF i f you leave th e room fo r mo re than a sho rt perio d of time. Never le av e the displa y ON when lea ving th e ho use. Keep c hildr en from dr op ping or pu shing obje cts i nto the di spl ay's cabine t openin gs. Some internal p arts ca rry h azardou s volt age s. Do n ot a dd a cce ssorie s th at have no t be en d esig ned for t his displ ay . When the display is to be l eft un attende d f or an exte nded perio d of tim e, unpl ug it from the wall outlet. In the presence o f thun der an d ligh tning , ne ver tou ch the pow er cor d and sign al cable because it c an b e v ery d ange rou s. I t ca n c ause ele ctri c sho ck . Important Precautions A2 Important Precautions On Installation Do not allow anything to rest upon or roll over the power cord, and do not place the display where the power cord is subject to damage. Do not use this display near water such as near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool. Displays are provided with ventilation openings in the cabinet to allow the release of heat generated during operation. If these openings are blocked, built-up heat can cause failures which may result in a fire hazard. Therefore, NEVER: Block the bottom ventilation slots by placing the display on a bed, sofa, rug, etc. Place the display in a built-in enclosure unless proper ventilation is provided. Cover the openings with cloth or other material. Place the display near or over a radiator or heat source. Main power breaker is the power cord and this breaking device must be located at a location where it is easy to operate. Do not rub or strike the Active Matrix LCD with anything hard as this may scratch, mar, or damage the Active Matrix LCD permanently. Do not press the LCD screen with your finger for a long time as this may cause some afterimages. Some dot defects may appear as Red, Green or Blue spots on the screen. However, this will have no impact or effect on the display performance. If possible, use the recommended resolution to obtain the best image quality for your LCD display. If used under any mode except the recommended resolution, some scaled or processed images may appear on the screen. However, this is characteristic of the fixed-resolution LCD panel. On Cleaning Unplug the display before cleaning the face of the display screen. Use a slightly damp (not wet) cloth. Do not use an aerosol directly on the display screen because over-spraying may cause electrical shock. On Repacking Do not throw away the carton and packing materials. They make an ideal container in which to transport the unit. When shipping the unit to another location, repack it in its original material. On Disposal The fluorescent lamp used in this product contains a small amount of mercury. Do not dispose of this product with general household waste. Disposal of this product must be carried out in accordance to the regulations of your local authority. Important Precautions NOTE THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY RADIO OR TV INTRERFERENCE CAUSED BY UNAUTHORIZED MODIFICATIONS TO THIS EQUIPMENT.SUCH MODIFICATIONS COULD VOID THE USER'S AUTHORITY NOTE This epuipment has been tested and found to comply with the limits for a class B digital device,pursuant to part 15 of the FCC Rules.These limits are designed to provide reasonable protection against harmful interference in a residential installation.This equipment generates,uses and can radiate radio frequency cause harmful interference to radio communications.However,there is no guarantee that interference will not occur in a particular installation.If this which can be determined by turning the equipment off and on,the user is encouraged to try to correct the interference by one or more of t…

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Block diagram LVDS LVDS LVDS Analog (R/G/B) D-Sub LIPS Filter 5V 12V 5V Regulator Regulator 3.3V 5V-Mod 3.3V Inverter( 4Lamps ) 12V 12V KEY 1.8V 1.8V Module SDATA/SCLK EEPROM (System) EEPROM (System) 3.3V 1280*1024@60Hz Dual Interface Engine Display Processing Engine LVDS Panel Interface OSD Clock Generator MCU Flash ROM Flash ROM 3.3V Crystal Crystal 14.318MHz interface TSUM56AWL DVI DVI-D Crystal ： TXC CORPORATION Regulation ： 14.31818MHz+/- 30PPM INPUT: 120V 60Hz FUNDAMENTAL OPERATION FR EQUENCY IS 0.030-0.083 MHz .

Power of Attorney Dear Sir/Madam, We, Company: LG Electronics U.S.A., Inc. Address: 1000 Sylvan Avenue, Englewood Cliffs, NJ 07632 Would like to inform you that we nominated Audix Technology (Shanghai) to act on behalf of our LG Electronics Inc. to apply FCC ID for the LCD Monitors with LG brand. Kind Regards, Place, date Signature 2007-10-20 Daniel Kim ________________ ________________

FIGURE 1 LCD MONITOR (M/N: L1755TT) GENERAL APPEARANCE (FRONT VIEW) F IGURE 2 LCD MONITOR (M/N: L1755TT) GENERAL APPEARANCE (BACK VIEW) FIGURE 3 LCD MONITOR (M/N: L1755TT) PORTS F IGURE 4 LCD MONITOR (M/N: L1755TT) D-SUB CABLE FIGURE 5 LCD MONITOR (M/N: L1755TT) DVI CABLE

Label Location Information Refer to the below red arrow: (For example)

FIGURE 1 LCD MONITOR (M/N: L1755TT) COVER REMOVED F IGURE 2 LCD MONITOR (M/N: L1755TT) BOARDS REMOVED FIGURE 3 LCD MONITOR (M/N: L1755TT) BUTTON BOARD (FRONT VIEW) F IGURE 4 LCD MONITOR (M/N: L1755TT) BUTTON BOARD (BACK VIEW) FIGURE 5 LCD MONITOR (M/N: L1755TT) LED BOARD (COMPONENT SIDE) F IGURE 6 LCD MONITOR (M/N: L1755TT) LED BOARD (SOLDERED SIDE) FIGURE 7 LCD MONITOR (M/N: L1755TT) POWER BOARD (COMPONENT SIDE) F IGURE 8 LCD MONITOR (M/N: L1755TT) POWER BOARD (SOLDERED SIDE) FIGURE 9 LCD MONITOR (M/N: L1755TT) MAIN BOARD (COMPONENT SIDE) F IGURE 10 LCD MONITOR (M/N: L1755TT) MAIN BOARD (SOLDERED SIDE) FIGURE 11 LCD MONITOR (M/N: L1755TT) CRYSTAL ON MAIN BOARD F IGURE 12 LCD MONITOR (M/N: L1755TT) CHIP ON MAIN BOARD FIGURE 13 LCD MONITOR (M/N: L1755TT) LABEL 1 ON LCD PANEL F IGURE 14 LCD MONITOR (M/N: L1755TT) LABEL 2 ON LCD PANEL FIGURE 15 LCD MONITOR (M/N: L1755TT) LCD PANEL MAIN BOARD SHIELDED COVER REMOVED F IGURE 16 LCD MONITOR (M/N: L1755TT) LCD PANEL MAIN BOARD (FRONT VIEW) FIGURE 17 LCD MONITOR (M/N: L1755TT) LCD PANEL MAIN BOARD (BACK VIEW) F IGURE 18 LCD MONITOR (M/N: L1755TT) CHIP ON LCD PANEL MAIN BOARD FIGURE 19 LCD MONITOR (M/N: L1755TT) DEBUG 1 F IGURE 20 LCD MONITOR (M/N: L1755TT) DEBUG 2

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LG Electronics U.S.A., Inc. FCC ID: BEJL1755TT Page 1 of 31 Audix Technology (Shanghai) Co., Ltd. Report No.: ACI-F07050 Prepared For : LG Electronics U.S.A., Inc. 1000 Sylvan Avenue, Englewood Cliffs, NJ 07632, United States Prepared By : Audix Technology (Shanghai) Co., Ltd. 3F 34Bldg 680 Guiping Rd, Caohejing Hi-Tech Park, Shanghai, China 200233 Tel: +86-21-64955500 Fax: +86-21-64955491 Report No. : ACI-F07050 Date of Test : Nov 07, 2007 Date of Report : Nov 09, 2007 Application for FCC Certificate On Behalf of LG Electronics U.S.A., Inc. LCD Monitor Model No.: L1755TT Serial No.: E07103001 FCC ID : BEJL1755TT LG Electronics U.S.A., Inc. FCC ID: BEJL1755TT Page 2 of 31 Audix Technology (Shanghai) Co., Ltd. Report No.: ACI-F07050 TABLE OF CONTENTS Page 1 SUMMARY OF STANDARDS AND RESULTS .......................................................................... 4 1.1 Description of Standards and Results......................................................................................... 4 2 GENERAL INFORMATION.......................................................................................................... 5 2.1 Description of Equipment Under Test........................................................................................5 2.2 Supported Simulators ................................................................................................................. 6 2.3 Description of Test Facility ........................................................................................................ 7 2.4 Measurement Uncertainty .......................................................................................................... 7 3 CONDUCTED EMISSION TEST .................................................................................................. 8 3.1 Test Equipment........................................................................................................................... 8 3.2 Block Diagram of Test Setup ..................................................................................................... 8 3.3 Conducted Emission Limit [FCC Part 15 Subpart B 15.107(a)]................................................ 9 3.4 Test Configuration...................................................................................................................... 9 3.5 Operating Condition of EUT .................................................................................................... 10 3.6 Test Procedures ........................................................................................................................ 11 3.7 Test Results .............................................................................................................................. 11 4 RADIATED EMISSION TEST..................................................................................................... 18 4.1 Test Equipment......................................................................................................................... 18 4.2 Block Diagram of Test Setup ................................................................................................... 18 4.3 Radiated Emission Limit [FCC Part 15 Subpart B 15.109(a)]................................................. 19 4.4 Test Configuration.................................................................................................................... 19 4.5 Operating Condition of EUT .................................................................................................... 20 4.6 Test Procedures ........................................................................................................................ 20 4.7 Test Results .............................................................................................................................. 21 5 DEVIATION TO TEST SPECIFICATIONS .............................................................................. 30 6 DEBUG DESCRIPTION ...............................................................................................................31 LG Electronics U.S.A., Inc. FCC ID: BEJL1755TT Page 3 of 31 Audix Technology (Shanghai) Co., Ltd. Report No.: ACI-F07050 TEST REPORT FOR FCC CERTIFICATE Applicant : LG Electronics U.S.A., Inc. Manufacturer : LG Electronics Nanjing Display Co., Ltd. EUT Description : LCD Monitor (A) Model No. : L1755TT (B) Serial No. : E07103001 (C) Power Supply : 120V/60Hz Test Procedure Used: FCC RULES AND REGULATIONS PART 15 SUBPART B CLASS B 2007.05 AND ANSI C63.4-2003 The device described above is tested by Audix Technology (Shanghai) Co., Ltd. to determine the maximum emission levels emanating from the device. The maximum emission levels are compared to the FCC Part 15 Subpart B (Class B) and ICES-003, Issue 4 February 2004 (CISPR 22:2002) limits both radiated and conducted emissions. The test results are contained in this test report and Audix Technology (Shanghai) Co., Ltd. is assumed full responsibility for the accuracy and completeness of these measurements. This report shows that the EUT (M/N: L1755TT; S/N: E07103001) which was tested in 3m anechoic chamber on Nov 07, 2007 is technically compliance with the FCC official limits also. This report applies to above tested sample only. This report shall not be reproduced in part without written approval of Audix Technology (Shanghai) Co., Ltd. This report contains data that are not covered by the NVLAP accreditation. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST, or any agency of the federal government. Date of Test : Nov 07, 2007 Prepared By: ZENO GU / Assistant Reviewer: SAMMY CHEN / Deputy Assistant Manager Approved Signatory: IAN CHIEN / Assistant Manager LG Electronics U.S.A., Inc. FCC ID: BEJL1755TT Page 4 of 31 Audix Technology (Shanghai) Co., Ltd. Report No.: ACI-F07050 1 SUMMARY OF STANDARDS AND RESULTS 1.1 Description of Standards and Re…

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Test Set-Up Photos 1. Conducted Emission Test F RONT VIEW S IDE VIEW 2. Radiated Electromagnetic Emission Test FRONT VIEW OF RADIATED EMISSION TEST (B ELOW 1GHZ) B ACK VIEW OF RADIATED EMISSION TEST (B ELOW 1GHZ) FRONT VIEW OF RADIATED EMISSION TEST (A BOVE 1GHZ) B ACK VIEW OF RADIATED EMISSION TEST (A BOVE 1GHZ) S ETUP WITH MAXIMUM DETECTED EMISSION AT HORIZONTAL POLARIZATION (DVI 1280*1024@60HZ, BELOW 1GHZ) S ETUP WITH MAXIMUM DETECTED EMISSION AT VERTICAL POLARIZATION (DVI 1280*1024@60HZ, BELOW 1GHZ)