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If you are using a cable-system set-top box and running it to the Coaxial input of the TV, then you need to perform the channel scan. If you are using a set-top box and are using a composite or HDMI input cable to the TV, then no channel scan is required. You merely need to use the SOURCE button on the TV remote to choose the composite or HDMI input connection. Nd if you are getting a "no signal" indication on the TV, it IS on.
Sounds like you have the wrong input selected for where you have it plugged in. Turn on the TV and the source(cable box, DVD...etc.) On the remote locate the input or the source button. Press that until you get a picture and sound.
This problem is hard to pinpoint as there are so many variables. If I could ask you a few questions first: -What is the model of the display?-What other components are hooked up to it?-What cables are connecting these components to the TV (e.g.. HDMI, Component, Composite etc.)?-Are you using an external sound source (stereo) or the TV speakers for audio?-Do you see and indicators or the screen when you turn up/down the volume or change inputs? This is of course using the Samsung TV's remote. I would try these things though: 1. Turn the TV off, unplug it from the power source for 30 seconds.2. Check the cables are all plugged in firmly and correctly. 3. Plug it back in and turn on the TV.Still no picture? 4. Try changing to another input (e.g. DVD, VCR, XBOX etc if you have one)3. Check on the Tv's remote to see if there is a "picture mute", "blanking" or similar button they may have been accidentally pressed. When you press it again, you will get picture back. If there is no button and still experiencing the same problem after checking all these things then you may have a fault.
Hello! I need more information on how to fix this. Are you connected by a componet, composite or HDMI cable? For the componet or composite, make sure that the red and white inserts are connected to the right channels and that they are inserted all the way in. For HDMI cables, just check to see if you have a solid connection to your TV or video source. If any of those does not fix the problem, you need a new sound cable. These are easy to find and cost relatively cheap. The most expensive would be your HDMI cable, which costs around $30 for a 3 foot cable. If that doesn't fix it, either your TV or your sound card to the video source is bad and you may need to have it repaired by a licenced repair person.
If you are trying to connect it in composite mode (the one yellow video cable) it won't work with the PIP turned on which is how it comes from factory. This is crazy as it means that you cannot see anything (menus) on the screen to disable it. I have a walk through guide here to turn it off blind or the other option is to take the STB and connect it to another TV via Component or HDMI and then turn off the PIP.
1 Ensure the LCD TV display is turned on. 2 Verify that all the cables are properly connected to the LCD TV display, including the power cable. 3 Check to see if there is a blue or amber light on the lower, right-hand corner of the LCD TV display. A blue light indicates the LCD TV display is on. An amber light means the LCD TV display is in power save mode. 4 Ensure the proper source is selected in the Input Select menu. See "Input Select Menu" on page 24 for more information. 5 Reconnect any devices that are currently connected to the LCD TV display. If you are using multiple devices, connect and test one device at a time. 6 Connect another device that you know is working properly. 7 Reset the original factory defaults. Press Menu on the remote control, select Setup, and then select Factory Reset.
Problem Possible Solution No sound
1 Ensure mute is not turned on. Pressing the Mute button on the remote control turns the mute function on and off. 2 If only certain LCD TV channels do not have sound, then you need to correct the Input Select menu in the TV Menu (see "Input Select Menu" on page 24). 3 Verify that the audio cables are firmly connected to both the audio input connectors on your LCD TV display and audio output connectors on your devices. Ensure that the cable colors match the connectors colors. 4 Also, ensure that the audio cables are connected to the same row as the video cables. See "About Your LCD TV Display" on page 5 for the location of the connectors. 5 Reconnect the device using the same type of connector. For example, if you are using the composite connector on the bottom, try connecting the device to the composite connector on the side of the LCD TV display. See "About Your LCD TV Display" on page 5 for the location of the connectors. After you connect the device, change the input source in the TV Menu. See "Input Select Menu" on page 24 for more information. 6 Connect the device using a different connector. For example, if you are experiencing the problem using a composite connector, try using the component connector. NOTE: To connect to a different connector, you need the appropriate cables for that connector. See your device documentation for a list of supported connections. After you connect the device, change the input source in the TV Menu. See "Input Select Menu" on page 24 for more information. 7 Test the device on a different TV.
Are you connecting the tv to your source using the DVI, component (Red Green Blue + 2), or composite (Red, Yellow, White)?
Try switching the type of connection you are using. If you are connected via component, then switch to composite. If the problem persists even on composite connectors, then the issue lies with the TV. If the composite cable works fine, then the problem is most likely the cable you are using.
Press the sleep button, and make sure the sleep timer is set to OFF.
Unplugging the TV from the wall outlet resets the TV.
If you have a cable or satellite box connected to the TV, then try resetting the box also by turning off/unplugging from wall outlet.
Surge protectors can cause some occasional anomalies with LCD TV's (they're still a good idea) - just reset the TV to clear up these anomalies.
Picture quality problems (such as lines, fuzzy image, or wrong colors)
Check the cables and connections:
Make sure that cable connections are securely fastened to the connectors and try reaseating the connectors. If connecting a device using component cables, make sure all three color-coded cables are connected correctly into the corresponding connectors.
Check the condition and length of the cables. Cables that are longer than 3 meters (10 feet), become more susceptible to promoting signal degredation (small dots "sparkling" on the screen and image ghosting). Cables that have been bent or pinched may also cause picture quality problems. Replace the cable or try a different cable type.
Check the display issue with a different channel. Picture quality problems on a single channel or on all channels may be caused by the TV station signal (antenna) or the cable signal source.
Make sure that the image quality issue is not coming from your source signal.
For example: if the image quality issues occur while viewing TV , switch the source to a DVD player to see if the image quality problems go away.
If selecting a different input source (using the remote control) causes the problem to go away, troubleshoot the source device causing the problem - adjust aerial antennas, call the cable company for assistance, and .
If a picture quality problem occurs on all sources, the TV or its settings may be the cause of the problem.
Higher resolution TVs will make it much easier to view signal problems coming from source signals - especially TV signals. For example, if your TV cable company experiences heavy load on their system, you may be able to detect small miscolored squares that briefly scatter across the screen (macro-blocking). On a smaller standard TV, this type of quality problem is much less noticeable on a standard TV, but can become very annoying when viewed with greater detail.
Try to Reset the TV ( LCD) quality options. Please look in to User Guide to make the TV to factory Defaults..
Unplug the TV from its power source. With the power cord unplugged, press and hold the power button for five seconds. Turn on the TV . If the image quality problems still exists across all types of signal sources, the TV should be serviced.
I hope that this should resolve the issue. However, if the issue still persists then please contact LCD manufacturer for further more on the issue.
IF you are saying that every thing is connected properly check your video cable it could be bad use a new one if that does not rectify your problem it is time to call in the tech you could be having problem in your video circuit but you did not mention if the screen light up with no picture but with sound or it does not light up blank with sound.however there could be two things 1 if the screen lightup with normal sound it could be a leaky ,open, or shorted, transistor or ic in the IF circuit.2 If the screen does not light up and has normal sound it could be a defective horizontal stage.so it is time you take the set to a tech for repairs.good luck.