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LG 42LE7300 Support Question

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Question posted by damonb8 on October 27th, 2013

My Lg 42le7300 Won't Turn On. I Have Tried Replacing The Power Board

I have an lg 42le7300 that was given to me by someone who said that it worked sometimes and not others and they were tired of dealing with it. The first time I turned it on it seemed to work fine but since then it won't turn on. When I push the power button I get no sound or picture and the red power light "flickers". I assumed it was a bad capacitor but they all looked fine. So I replaced the entire power board and the exact same thing happened. Any idea what the problem may be? Thanks in advance for any help.

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Related LG 42LE7300 Manual Pages

Owner's Manual - Page 1

... carefully before operating your set and retain it for future reference. LED LCD TV MODELS 19LE5300 32LE5300 22LE5300 37LE5300 26LE5300 42LE5300 22LE5500 47LE5300 26LE5500 55LE5300 42LE7300 47LE7300 55LE7300 42LE530C 47LE530C 55LE530C LCD TV MODELS 32LD420 32LD450 42LD420 37LD450 47LD420 42LD450 47LD450 37LD450C 42LD450C 47LD450C 32LD520 42LD520 47LD520 55LD520 55LD520C 42LD630 47LD630...
Owner's Manual - Page 2

...this equipment does cause harmful interference to radio or television reception, which are designed to which the receiver ...provided to Article 820-40 of the device). aged to try to the following measures: lateral triangle is encour- the user... for help. different from LG Electronics. These limits are not expressly approved by turning the equipment off and on...
Owner's Manual - Page 3

...apparatus during lighting storms or when unused for replacement of these conditions could result in accordance with the apparatus. Protect the power cord from the apparatus. 7 Only use ... When a cart is , a single outlet circuit which powers only that produce heat. 5 Do not defeat the safety purpose of time. 11 Never touch this apparatus near any ventilation openings. that...
Owner's Manual - Page 4

...long period, the ventilation openings may take 2 or more people to prevent scratching. Do not try to provide some protection against or put stress on or over the apparatus (e.g. a TV with... to the AC wall outlet, it . 27 Keep the product away from the AC power source even if you turn off , unplugged and all cables have a qualified electrician install a separate circuit breaker. Do...
Owner's Manual - Page 6

... Mode.106 Picture Improvement Technology (Advanced Control 107 Expert Picture Control 108 Picture Reset 111 Power Indicator 111 TruMotion 112 Picture Test / Sound Test 60 - Channel Editing 65 Favorite Channel... 44 PC Setup 45 WATCHING TV / CHANNEL CONTROL Remote Control Functions 52 Turning on the TV 54 Channel Selection 54 Volume Adjustment 54 Initial Setting 55 On-Screen ...
Owner's Manual - Page 8

...and richer sound field. Using a sophisticated algorithm, the LG processes picture quality elements including brightness, contrast, color, ... registered in order to 50% in power consumption. and are registered trademarks of ...television broadcast and playback system composed of digital television, HDTV formats include 1080i and 720p resolutions. View videos and photos and listen to turn...
Owner's Manual - Page 29

installation manual and all parts necessary for ►LG is used . CAUTION ►Do not install your wall mount kit while your TV is not ... do not comply with the VESA standard screw specifications, the length ! ! NOTE ► Screw length needed depends on . LG is turned on the wall ► Do not use fasten the screws too strongly, this may cause damage to the TV. ►...
Owner's Manual - Page 36

... ꔛ To prevent the equipment damage, never plug in any power cords until you do receive digital signals from a digital set-top...EXTERNAL EQUIPMENT SETUP mainly use AUDIO IN OPTICAL DIGITAL AV IN RGB/DVI AUDIO OUT VIDEO L(MONO) AUDIO R ꔛ Turn on the digital set -top box to connect 1 Connect the video outputs (Y, PB, PR) of for the digital ...
Owner's Manual - Page 52

.... WATCHING TV / CHANNEL CONTROL WAATTCCHHININGGTVTV/ C/HCAHNNAENLNCEOLNCTROONLTROL REMOTE CONTROL FUNCTIONS When using the remote control, aim it at the bottom of AV devices connected to TV. POWER Turns the TV on -screen menus and adjusts the (Up/Down/Left Right/ENTER) system settings to the last channel viewed. BACK SIMPLINK Allows the user...
Owner's Manual - Page 54

... by using the INPUT button on the remote control. 3 When finished using the TV, press the POWER button on , press the / I f you want to select a channel number. WATCHING TV / CHANNEL CONTROL TURNING ON THE TV 1 First, connect power cord correctly. NOTE ► I , INPUT, CH (ꕌ or ꕍ) button on the TV or press...
Owner's Manual - Page 55

...for displaying at stores. Step 1. Selecting Language WELCOME! Choose the setting mode you for choosing LG Step 1. Home Use Store Demo • Demo Mode Off ꕉ Previous ꔉ Next... in retail environments. It can also be displayed on the screen when turning the TV on for the first time when purchasing the TV. It will automatically return to preset in-store...
Owner's Manual - Page 78

...manual of a USB storage device may not work , turn off and on again to make it work properly. But they may depend on each device. ► Please do not turn the hard disk off the TV or ... can be seen by the TV. ►If a device is not recognized by the TV, try a different cable. The power adapter must be connected in the movie list. 78 Memory Key Precautions when using the USB device ...
Owner's Manual - Page 142

...42267; Try another product's power cord into the outlet where the product's power cord was plugged in pictures ꔛ Check antenna (Change the direction of the antenna). TV turns off automatically...appliance or power or picture shaking tool. Horizontal/vertical bars ꔛ Check for all models. APPPPEENNDDIXIX TROUBLESHOOTING Abnormal Operation The remote control doesn't work ꔛ...
Owner's Manual - Page 147

... x 34.1 inch x 13.5 inch) 1306.0 mm x 797.0 mm x 30.7 mm (51.4 inch x 31.3inch x 1.2 inch) 34.05 kg (75.0 lbs) 28.8 kg (63.4 lbs) Power Requirement Television System Program Coverage External Antenna Impedance Environment Operating Temperature condition Operating Humidity Storage Temperature Storage Humidity AC 120 V ~ 50 / 60 Hz NTSC-M, ATSC, 64 & 256...
Owner's Manual - Page 148

...x Height x Depth) With stand Without stand Weight With stand Without stand 42LE7300 (42LE7300-UA) 1009.2 mm x 694.5 mm x 286.5 mm (39.7 inch...31.4 inch x 1.2 inch) 44.5 kg (98.1 lbs) 37.1 kg (81.7 lbs) Power requirement Television System Program Coverage External Antenna Impedance Environment Operating Temperature condition Operating Humidity Storage Temperature Storage Humidity AC 120...
Owner's Manual - Page 149

....0 mm x 698.0 mm x 76.5 mm (44.7 inch x 27.4 inch x 3.0 inch) 19.5 kg (42.9 lbs) Without stand 13.5 kg (29.7 lbs) 17.5 kg (38.5 lbs) Power requirement Television System Program Coverage External Antenna Impedance Environment Operating Temperature condition Operating Humidity Storage Temperature Storage Humidity AC 100-240 V ~ 50 / 60 Hz NTSC-M, ATSC, 64...
Owner's Manual - Page 150

....3 inch x 34.3 inch x 12.9 inch) 1329.0 mm x 796.0 mm x 96.5 mm (52.3 inch x 31.3 inch x 3.7 inch) 33.0 kg (72.7 lbs) 29.8 kg (65.6 lbs) Power requirement Television System Program Coverage External Antenna Impedance Environment Operating Temperature condition Operating Humidity Storage Temperature Storage Humidity AC 100-240 V ~ 50 / 60 Hz NTSC-M, ATSC, 64...
Owner's Manual - Page 156

...Set ID][ ][OK/NG][Data][x] 20. Auto configuration only works in the Audio menu. The Physical number is the actual digital... [k][m][ ][Set ID][ ][Data][Cr] Data 00: Lock off . When main power is on the TV, use this mode. Max: 64 (*transmit by Hexadecimal code.... You can also adjust balance in the standby mode, TV will not turn on in the Audio menu. Minimum 02: Energy saving - Max: 64 ...
Owner's Manual - Page 157

... 03 Data 05 = 0010 0010 in the standby mode, TV will turn on by Hexadecimal code) *Refer to 'Real data mapping'. Data 00...Transmission [m][g][ ][Set ID][ ][Data][Cr] Data Min:00 ~ Max:64 (*transmit by POWER button of 35 = 23 Data 01 & 02 = No Major = 00 00 Data 03...analog (NTSC) cable channel 35. Normally use 1 for ATSC since most times it can only use 0 since it's ignored when using NTSC. * ...
Specification - Page 2

...WxH) • (200mm x 200mm) Remote Control 1 (Unified) POWER Voltage, Hz 100V ~ 240V, 50/60Hz On Mode (Average)...Parental Control w/V-Chip • Key Lock • LG.com LG Electronics U.S.A., Inc. 1000 Sylvan Avenue Englewood Cliffs, NJ... LCD TV INFINIA 42LE7300 PANEL SPECIFICATION Screen Size 42" Class (42... (cd/m2) 500 Response Time (GTG) 2.4ms TruMotion 120Hz...

LG Knowledge Base Results

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  • Plumbing Noises - LG Consumer Knowledge Base
    ... suddenly shifting position. The normal sound of the valve. If that leads from this tube is not the problem. Replacing the pipes with it when it slams into ), or by electricity, they occur randomly. The noise may jamb closed , then they often do to completely eliminate this happens you try turning on water hammer caused by...
  • Television remote control not working - LG Consumer Knowledge Base
    .... Make sure that another remote works, remote may need replacing. After new batteries have been replaced. A mixture of unit do I use  in the home are fresh, new, and installed properly. Try replacing the batteries with the model being used . It is not recommended that the proper mode button has been pressed to other devices...
  • HDTV: How can I improve low or bad signal? - LG Consumer Knowledge Base
    ... the connection is still poor, try replacing that will improve reception. If your cable channels have the television begin the process. Select the [Channel] menu. For over -the-air) Press the ▼ If your outdoor antenna is immovable, consider replacing it in TV -> Plasma TV LCD Terminology: Tuning Systems Television Picture Color Liquid Crystals (continued) Channels...

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