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Samsung UN40D6420UF Support Question

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Question posted by snchauhan1405 on September 22nd, 2015

Samsung Un40d6420uf Smart Tv Does Not Show Display.

HIMy Samsung UN40D6420UF smart tv doesnt show the picture. The audio, power light, back light is working correctly. I also tried changing power board, t-con board and main board. Do I miss something?Thank yousat

Current Answers

Answer #1: Posted by TommyKervz on September 22nd, 2015 1:45 PM
This answer was accepted by the poster of the original question.
TommyKervz

Member since:
January 10th, 2013

Points: 17,776,833
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Please refer to page 42, 45, and 48 of the service manual from the link below.
http://www.manualslib.com/manual/833506/Samsung-Un40d6400uf.html?page=2#manual


Hope that is helpful.
Kervz at www.satechhelp.co.za

Related Samsung UN40D6420UF Manual Pages

Skype Guide (user Manual) (ver.1.0) (English) - Page 2

... network before using Skype on Linux-based PCs. 2 xx If the webcam isn't working properly, turn the TV off . xx Use of the Skype software is subject to configure your SAMSUNG webcam directly to you while you watch the TV or operate the Skype application. xx For help using Skype, visit skype.com xx...
User Manual (user Manual) (ver.1.0) (English) - Page 4

... the Time → Clock function in the System menu to use Timer Viewing, follow these steps: 1. To use this function. Press the ENTERE button to display a desired channel automatically on a day and at a time of your choice. English Using the Timer Viewing You can set the...
User Manual (user Manual) (ver.1.0) (English) - Page 49

Use the arrow keys to an input on the TV. ●● The displayed image may differ depending on the model. English Picture Options Color Tone Standard ●● Color Tone ...Picture Options OO MENUm → PicturePicture Options → ENTERE Select an option using the up and down arrow keys, and the press ENTERE. Film Mode Off NN You can only make changes ...
User Manual (user Manual) (ver.1.0) (English) - Page 52

... . NN If you have Auto Motion Plus on and Auto Motion Plus off. ▶ English This displayed frequency is not the frequency of the incoming video signal (60 Hz). NN If noise occurs on your TV displays the resolution and frequency of the picture the TV is displaying when you set Auto Motion Plus to Off.
User Manual (user Manual) (ver.1.0) (English) - Page 102

... it needs and connects to the Access Point easily by pressing the WPS(PBC) button. Press the WPS(PBC) button on the model. Your TV ●● The displayed image may differ depending on your network. 4. English Choose this if your router has a WPS(PBC) button, follow these steps: 1. The network connection...
User Manual (user Manual) (ver.1.0) (English) - Page 118

... (when the Source is set to USB): Select a folder in the USB ◀ device containing music or photo files you want played when the TV turns on automatically. Select USB and the TV will display broadcast or cable TV programs when it turns on ▶ automatically. Music / Photo (when the Source is set to...
User Manual (user Manual) (ver.1.0) (English) - Page 122

TV-Y: Young children / TV-Y7: Children 7 and over / TV-G: General audience / TV-PG: Parental guidance / TV-14: Viewers 14 and over / TVMA: Mature audience ◀ ▶ English TV Rating displays a grid with locks. The following categories are on their ratings. This function allows you to control what your children can block TV programs based on the left side: -- TV Rating...
User Manual (user Manual) (ver.1.0) (English) - Page 153

... is either perfect or the channels are unavailable. Signal Information displays HD channel signal strength so you can adjust your TV seems to increase signal strength and receive HD channels. ●● Troubleshooting: Displays a troubleshooting guide organized into four symptom categories: Poor or Distorted Picture, Distorted Sound or No Sound, RF or PC Issues...
User Manual (user Manual) (ver.1.0) (English) - Page 171

... when you change the input source. ●● Some Picture functions are disabled in 3D mode. ◀ ●● PIP is not supported in 3D mode. ▶ ●● 3D Active Glasses from Samsung's previous product (IR type) or other manufacturers are not be supported. ●● When the TV is initially powered on, it...
User Manual (user Manual) (ver.1.0) (English) - Page 174

Recommended : Displays recommended contents managed by { Edit Mode } Settings Exit: Exits the SMART HUB. Samsung Apps : You can download various for pay or free-of Smart Hub. Controls: ●● a Red (Login): To log in to Smart Hub. ●● b Green (Sort by Samsung product introductions. NN The colored buttons may work differently depending on the TV. Smart Hub at...
User Manual (user Manual) (ver.1.0) (English) - Page 181

...; The displayed image may differ depending on your remote control. An entry screen and keypad appear. ▶ 4. The Login screen appears. 2. Press the u / d / l / r buttons to enter your ID. Use the keypad to select Create Account, and then press the ENTERE button. Login Smart TV ID Password Press [ENTER] Press [ENTER] Remember my Smart TV id...
User Manual (user Manual) (ver.1.0) (English) - Page 185

... that appears, and then press the ENTERE button. Select your Smart Hub account, follow these steps: 1. The Login screen appears. 2. Account Log In To log in to the Smart TV ID field, and then press the ENTERE button. 3. With the Smart Hub main screen displayed on your TV, press the a button on your remote. The Login screen...
User Manual (user Manual) (ver.1.0) (English) - Page 193

Remove from Smart Hub. ◀ ▶ English Deactivate Account: The Deactivate Account function deactivates your Smart TV ID and deletes it and all your account settings entirely from TV Account List: The Remove From TV Account List function cancels all your current registered Service Accounts that you registered on the Register Service Account screen.
User Manual (user Manual) (ver.1.0) (English) - Page 226

...when you can search ◀ using the � (REW) and µ (FF) button. NN Smart Hub only displays files with MP3 file Music Playlist 13/30 I Love You Ming Love R&B 2011-01-01 1.2MB 01:...No Singer Music_5 No Singer Music_6 No Singer Music_7 No Singer Music_8 No Singer ●● The displayed image may cause a sound problem.) English NN If the sound is playing, you play MP3 ...
User Manual (user Manual) (ver.1.0) (English) - Page 283

... NN If your receiver supports audio only, it is set to exit. ❑❑ Listening through a Receiver You can hear sound output from the receiver. Press the EXIT button to On. 2. When the TV is displaying a DTV (air) signal, the TV will send out 5.1 channel sound to the TV via HDMI, you will hear only...
User Manual (user Manual) (ver.1.0) (English) - Page 292

...working correctly The 3D images don't look quite right. ◀ The batteries in the 3D glasses don't last Solutions and Explanations •• Make sure the glasses are turned on. •• The 3D Active Glasses may not work... properly if there is any other 3D product or electronic devices turned on near the glasses or TV. •• If there is ...
User Manual (user Manual) (ver.1.0) (English) - Page 295

...; •• The compression of video contents may cause picture distortion, especially with fast moving pictures such as sports and action movies. •• A weak signal can cause picture distortion. Most cable systems use STD. •• Verify the antenna is not receiving all channels. Try changing Caption Mode Service1 to MENU - Channel - Auto Program...
Quick Guide (easy Manual) (ver.1.0) (English) - Page 2

... aspect ratio of the total television viewing per week. In the United States : 1-800-SAMSUNG (1-800-726-7864) - In Canada : 1-800-SAMSUNG Still image warning Avoid displaying still images (such as jpeg picture files), still image elements (such as a full screen picture. yy Reduce brightness and contrast to view different formats as TV channel logos, stock or...
Quick Guide (easy Manual) (ver.1.0) (English) - Page 17

... the E-MANUAL button on your remote. ✎ You can not use Try now function if the TV menu is not activated. The e-Manual displays page you want . Basic Features Changing the Preset Picture Mode Adjusting Picture Settings Changing the Picture Size Changing the Picture Options Setting up the TV with Your PC Index The category list. Press ENTERE button to select...
Quick Guide (easy Manual) (ver.1.0) (English) - Page 20

... to produce. English - 20 Solutions and Explanations yy Make sure the AC power cord is working. yy Be sure to select the correct input source by pressing the SOURCE button on web site (samsung.com → Support → Downloads) by USB. Troubleshooting If the TV seems to have no picture/video. Lets you to operate the...

Samsung Knowledge Base Results

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  • General Support
    ... correct HDMI input if you want to an HDMI In jack Adjust the display if necessary using a DVI-D cable. In most current Samsung TVs, follow these steps: Connect the DVI-D Out jack on the front panel of your TV has only two HDMI jacks, you 've connected the computer to the left and right Audio...
  • General Support
    ...display has not covered that pixel fully. Follow these steps to the stuck pixel, turn on your TV. Do not apply pressure anywhere else, as this may make more stuck pixels. In many cases, the stuck pixel will now work correctly.... A dead pixel remains dark. If your TV off. While applying pressure to spread the liquid and ...
  • General Support
    ... change the VGA output of the inputs you connect your TV to get the update. Mode Not Supported Message If you get audio from your laptop to the left and right Audio...the other , connect the audio cable from your laptop through the following function sequence: TV display on, laptop display off , laptop display on your TV. For sound, you can use it or a TV icon. HDMI and HDMI...

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