BEJMU42PM12XPDP Display

LG Electronics Inc. 642 Jinpyoung-dong, Kumi-city, Kyoungsangbuk-do, 730-360,Korea TEL : +82-54-470-4537 FAX : 82-54-470-4534 Federal Communications Commission Authorization and Evaluation Division FCC ID : BEJMU42PM12X Confidentiality Request Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, the Applicant hereby requests confidential treatment of information accompanying this Application as outlined below: Schematics Block Diagram The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the Applicant and provide unjustified benefits to its competitors. The Applicant understands that pursuant to Rule 0.457, disclosure of this Application and all accompanying documentation will not be made before the data of the Grant for this application. Sincerely, Min-hwan OH / Senior Engineer LG Electronics Inc. TEL : +82-54-470-4537 FAX : 82-54-470-4534

American Telecommunications Certification Body Inc. 6731 Whittier Ave, McLean, VA 22101 November 9, 2004 RE: LG Electronics Inc. FCC ID: BEJMU42PM12X After a review of the submitted information, I have a few comments on the above referenced Application. 1) The internal photographs show a CTRL_LVDS board, but from looking at the external photograph of the back/inside, it can not be determined if this board is part of this device. Please show where this board is located in the device. 2) The device is capable of many different resolutions and refresh rates. These different resolutions and rates must be investigated to determine worse case (Page 16 of the users manual shows various resolutions possible). Worse case does not always occur at the highest resolution. Was this investigation performed? If not, how can worse case data be assured? 3) Please comment on the RBW/VBW used during radiated testing. 4) FYI....This application only covered the PC peripheral portion of the device. Please note that the manufacturer is still responsible for making sure that the technical requirements for TV receivers have been verified per the FCC rules (these may be found in Sections 15.31(n), 15.107, 109, 111, 117, 118, 119,120, and 122 as applicable). Timothy R. Johnson Examining Engineer mailto: [email protected] The items indicated above must be submitted before processing can continue on the above referenced application. Failure to provide the requested information may result in application termination. Correspondence should be considered part of the permanent submission and may be viewed from the Internet after a Grant of Equipment Authorization is issued. Please do not respond to this correspondence using the email reply button. In order for your response to be processed expeditiously, you must submit your documents through the AmericanTCB.com website. Also, please note that partial responses increase processing time and should not be submitted. Any questions about the content of this correspondence should be directed to the sender.

Dear Timothy R. Johnson 1)I uploaded internal photos about CTRL_LVDS BOARD 2)It is worse case(1280*1024) 3)We measured not Spectrum Analyzer and by test receiver thank you Yang. Page 1 of 1In 11/10/2004Printed for "Timothy R. Johnson" <[email protected]>

1. FRONT 2. REAR 3. PORT 4. INTERNAL

INTERNAL PHOTO 1. MAIN 1.1 Front 1.2 Rear 2. POWER 2.1 Front 2.2 Rear 3. CTRL_LVDS 3.1 Front 3.2 Rear 4.PDP 4.1 Front 4.2 Rear 5. RGB 5.1 Front 5.2 Rear 6. YSUS 6.1 Front 6.2 Rear 7. Z SUS 7.1 Front 7.2 Rear

LG Electronics Inc. FCC ID BEJMU42PM12X -Operational description- A plasma display panel is the latest display technology. It is currently the best way to achieve flat panel displays with excellent image quality and large screen sizes, that are easily viewable. The PDP can be thought of as a descendant of the neon lamp an dit can be also be viewed as a series of fluorescent lamps. PDP is an array of cells, known as pixels, which are comprised of 3 sub pixels, corresponding to the colors red, green, and blue. Gas in a plasma state is used to react with phosphors in each sub-pixel to produce colored light (red, green, or blue). These phos-phors are the same types used in Cathode Ray Tube (CRT) devices such as televisions and common computer monitors. You get the rich, dynamic colors that you expect. Each sub-pixel is individually controlled by advanced electronics to produce over16 million different colors. All of this means that you get perfect images that are easily viewable in a display that is less than 5inches thick.