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LG 47LF11 Support Question

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Question posted by rbessmertny on March 23rd, 2012

47lf11 Video Problem

Top 3 in. of screen are normal video noise(no signal) and audio white noise, rest of screen is white with a thin line horizontally. Power supply voltages are normal. Have replaced main board and LCD control board, no change. What could be causing this problem?

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Related LG 47LF11 Manual Pages

Owner's Manual (English) - Page 1

...-865-3026 USA, Commercial User 1-888-542-2623 CANADA LG Customer Information Center P/NO : SAC33601901 (0910-REV05) www.lgusa.com / www.lg.ca / www.lgcommercial.com LCD TV OWNER'S MANUAL 19LH20 22LH20 26LH20 32LH20 37LH20 42LH20 22LH200C 32LH30 37LH30 42LH30 47LH30 32LF11 37LF11 42LF11 47LF11 19LU55 22LU55 26LU55 32CL10 32CL20 42CL11 47LF21 Please read this...

Owner's Manual (English) - Page 2

...equipment off and on a circuit different from LG Electronics. CAUTION Do not attempt to rain...equipment does cause harmful interference to radio or television reception, which are designed to the following .... Consult the dealer or an experienced radio/TV technician for a Class B digital device, pursuant... presence of uninsulated "dangerous voltage" within an equilateral triangle is provided...

Owner's Manual (English) - Page 4

...liquids. Do not touch the TV with an exact replacement part by the hanging power and signal cables on the back of ...TV with something. 14 CAUTION concerning the Power Cord: It is connected to the AC wall outlet, it , discontinue use a damaged or loose power cord. Short-circuit Breaker Power Supply 18 DISCONNECTING DEVICE FROM MAINS Mains plug is , a single outlet circuit which powers...

Owner's Manual (English) - Page 5

...LCD TV) The fluorescent lamp used in this product contains a small amount of the National Electrical Code (NEC) in . provides information with such power lines or circuits as to the regulations of the TV. 23 Ventilation Install your local authority. 5 This is normal...antenna system is proper ventilation. Do not press against voltage surges and built-up static charges. An outdoor ...

Owner's Manual (English) - Page 8

...HDMI Licensing LLC." FEATURE OF THIS TV High-definition television. The viewer has the ability to help keep dialogue audible when background noise swells. logos, screen menus, video game, and computer display) is ...Please contact your TV screen for a prolonged period (2 or more hours for LCD, 1 or more pixels, 16:9 aspect-ratio screens, and AC3 digital audio. I When a fixed image (e.g.

Owner's Manual (English) - Page 9

... PC connection, the user must use shielded signal interface cables with ferrite cores to P.19...22LH20, 22LH200C For 32/37/42/47LF11, 47LF21, 32CL10/20, 42CL11 (Except 47LF11, 47LF21) (Except 47LF11, 47LF21) x4 x4 or Cable ... Control, Batteries Power Cord Not included with all models Polishing Cloth * Wipe spots on the exterior only with your TV. PREPARATION PREPARATION ACCESSORIES...

Owner's Manual (English) - Page 15

... IN Connect over-the air signals to this jack. This port is used for software updates. 2 AV (Audio/Video) IN Analog composite connection. Caution: Never attempt to DVI cable (not included). 4 RGB IN (PC) Analog PC Connection. Accepts DVI video using an adapter or HDMI to operate the TV on DC power. 15 Uses a D-sub 15...

Owner's Manual (English) - Page 24

... installation manual and all parts necessary for wall mount kits are provided. G Do not use an LG brand wall mount when mounting the TV to electric shock. 24 PREPARATION PREPARATION VESA WALL MOUNTING Install your TV is turned on. CAUTION G Do not install your wall mount kit while your wall mount on the...

Owner's Manual (English) - Page 29

... is an optional accessory. 29 ATTACHING THE TV TO A DESK (Except 19/22LH20, 22LH200C,19/22LU55, 47LH30, 47LF11, 47LF21) The TV must be attached to the user's guide provided with a Kensington Security System connector on the back panel. Connect the Kensington Security System cable as notebook PCs and LCD projectors. Kensington sells security systems for...

Owner's Manual (English) - Page 32

... source on the TV using the INPUT button on the remote control. 1 2 USB IN SERVICE ONLY AV IN VIDEO AUDIO L(MONO) R 2 VIDEO L R AUDIO 1 COMPONENT IN /DVI IN Supported Resolutions Signal Component 480i Yes 480p Yes 720p Yes 1080i Yes 1080p Yes HDMI No Yes Yes Yes Yes 32 Y, CB/PB, CR/PR Resolution Horizontal Vertical Frequency(KHz...

Owner's Manual (English) - Page 33

... HDMI version 1.3, it can cause flickers or no screen display. NOTE G Check HDMI cable over version 1.3. AV IN VIDEO AUDIO L(MONO) R 2 DEO L R AUDIO 1 COMPONENT IN RGB IN (PC) AUDIO IN (RGB/DVI) OPT A RS-232C IN AC /DVI IN (CONTROL&SERVICE) 1 HDMI OUTPUT HDMI-DTV Resolution Horizontal Vertical Frequency(KHz) Frequency(Hz) 720x480p 1280x720p 1920x1080i 1920x1080p...

Owner's Manual (English) - Page 35

... the INPUT button on DVD player Y Y PB PR PB PR B-Y R-Y Cb Cr Pb Pr 1 2 USB IN SERVICE ONLY AV IN VIDEO AUDIO L(MONO) R 2 VIDEO L R AUDIO 1 COMPONENT IN A ( /DVI IN 35 Component ports on the TV Y Y Video output ports Y on the remote control. EXTERNAL EQUIPMENT SETUP DVD SETUP Component Connection 1. Match the jack colors (Y = green, PB = blue...

Owner's Manual (English) - Page 36

... INPUT button on the TV. 2 No separated audio connection is necessary. If the HDMI cables don't support HDMI version 1.3, it can cause flickers or no screen display. In this case use I Turn on the remote control. Match the jack colors (Video = yellow, Audio Left = white, and Audio Right = red). 2. HDMI supports both audio and video. 2. How to use the...

Owner's Manual (English) - Page 37

... RF antenna in socket of the VCR to the ANTENNA/CABLE IN socket on the TV. 2 Connect the antenna cable to the VCR owner's manual.) ANT OUT S-VIDEO VIDEO L R AUDIO ANT IN OUTPUT SWITCH Wall Jack 2 Antenna 37 RGB IN (PC) AUDIO IN (RGB/DVI) OPTICAL DIGITAL AUDIO OUT 1 RS-232C IN ACNATBELNENIAN/ IN (CONTROL&SERVICE) 2.

Owner's Manual (English) - Page 38

...: Only 32/37/42/47LH30, 26LU55, 32/37/42/47LF11, 47LF21, 42CL11 ! Match the jack colors (Video = yellow, Audio Left = white, and Audio Right = red). 2. How to use I Insert a video tape into the VCR and press PLAY on the VCR. (Refer to connect 1 Connect the AUDIO/VIDEO jacks between TV and VCR. NOTE G If you have a mono VCR, connect...

Owner's Manual (English) - Page 39

... equipment. * AV2: Only 32/37/42/47LH30, 26LU55, 32/37/42/47LF11, 47LF21, 42CL11 VIDEO L/MONO AUDIO R IN 3 Camcorder Video Game Set VIDEO L R 1 AV IN 2 39 EXTERNAL EQUIPMENT SETUP OTHER A/V SOURCE SETUP 1. How to connect 1 Connect the AUDIO/VIDEO jacks between TV and external equipment. Match the jack colors. (Video = yellow, Audio Left = white, and Audio Right = red) 2.

Owner's Manual (English) - Page 51

... 10 Eastern Auto Previous Next 1 Select Auto or Manual. 2 ENTER Select desired time option. Auto Tuning Auto Tuning Before starting, be displayed on the screen when turning the TV on for the best picture in retail environments. I "Store Demo" Mode is connected. 1 ENTER Previous INFO i Simple Manual Next Check your home environment...

Owner's Manual (English) - Page 71

...to TV ...screen. The lower the level, the softer the image. I Backlight: This function adjusts the brightness of LCD panel...signal in the edges between red and green levels. 71 I Sharpness: Adjusts the level of crispness in the picture. USER MODE Adjust the picture appearance to control the brightness of the black becomes darker without any loss in video signal and the power...

Owner's Manual (English) - Page 108

.../or location. I Check for all models. Horizontal/vertical bars or picture shaking I Are the video cables installed properly? I TV will be with the broadcast. The HDMI cables don't support HDMI version 1.3, it cause flickers or no signal for sources of the antenna). to another product's power cord into wall power outlet? I Keep a sufficient distance between the...

Owner's Manual (English) - Page 109

... the PC video card. I Try another channel. I Check the signal cable. I A change in PC mode. (Only PC mode applied) The signal is out...noise when the product is turned on background & Horizontal Noise & Incorrect position Screen color is not available for all models. The problem may result in menu option. Picture OK & No sound I Are the audio cables installed properly? The audio...

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LG TV Quick Setup Guide - LG Consumer Knowledge Base
... for video and a red and white cable for illustration only. Component An analog connection that is available on both devices. Actual product layout may vary based upon the model. Article ID: 6438 Last updated: 24 Feb, 2010 Views: 9328 Also read A/V Connection Guide What type of the owner's manual. Television: Noise/Audio problems...
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