Question about Sony FD Trinitron WEGA KV-27FV310 27" TV

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No signal With the antenna connected to the TV and tuned to a channel, the picture is normal. On the screen is a graphic notice that says "no signal" and the sound is muted. If I change to another channel the picture and sound will start for a few seconds and then the sound will mute as the "no signal" appears on the screen. The picture will remain normal. If I switch to PIP I will get the picture and the sound normal when in the PIP mode. What could be wrong? Maybe I have lost the main tuner? There is a second tuner for PIP. Thank you

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That sounds about right my friend. Those sets do have two tuners and Ive seen the problem your desribing. Unless of course that the microprocessor and tuning circuits are goos also. I would call a servicer if I were you unless yopu know your way around the inside of the tv set as it does have alot of High voltage even when its unplugged Good Luck

Posted on Jun 07, 2006


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Wont receive digital channels after scan non found

Hi Patrick,

You must have a UHF / VHF antenna connected to the antenna input of the TV to scan for digital channels. Most new TV's have a threaded, round 75 ohm coax cable connection for this - but yours might even have connection consisting of 2 small screws to connect a 300 ohm twin lead antenna cable instead. Use which ever yours has.

If you are using this input for the input of a cable TV "set top box" (STB), satellite STB, or similar, you will likely only find a single analog channel (Ch3 or Ch4) after a scan as the scan will only find the output of the STB - which is usually on Ch3 or Ch4 - and not be able to scan the STB channels.

Additionally, the antenna input of the TV will only provide a standard definition picture if connected via coax cable from the STB. It will only provide a high definition picture if connected to a UHF / VHF antenna and a broadcaster is close enough for its signal to be received by the antenna. The way to obtain the best possible picture (high definition) when using an STB for tuning channels is to use an HDMI cable between the STB and TV. An HDMI cable will provide the very best picture and audio signals from the STB to the TV; all over a single cable and is the recommended practice.

I hope this helps!

Dec 26, 2014 | Televison & Video

1 Answer

Why won't hd channels be found when I tune my 42

It depends where you are. Digital has replaced analog signals. If you don't receive channels, ask a friend or neighbours on the situation with their TV. If their hd TV are working properly, then you may have not tuned the TV properly. Have you chacked the Antenna cable? Yes? Then tune it with care and watch what happens. Normally, the TV will show if a signal has been detected. If you have no signal, you need a technician because there are more than one reason this is happening, probably you haven't connected the Antenna cable. Who knows. Again, check the antenna cable, is it lose or wrongly inserted? If you have a small digital TV, connect the antenna to that TV and see if the channels are working. If not, it's probably the cable from the wall socket to the TV (change the cable) or the Antenna cable had been a meal for a rodent on the roof. As I said, who knows?

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Sharp aquos lc32l400x

It is a recommended practice to repeat the channel search routine periodically as the DTV environment is subject to change. Also, the antenna connection to your TV may not provide sufficient signal strength to maintain picture quality. Even weather can be a factor.

Jan 16, 2014 | Televison & Video

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New LG 32LD350 - Allowed TV to auto-program channels, and for some reason, it skipped past channel 4 during the tuning process. When I select channel 4 in the tuning options, it comes up as no signal. On...

When you are auto tuning the system will not store a channel which is week by its standard ( at least 60% signal strength ) This done to avoid grainy picture and hissy sound.
You can go into manual tuning and store it.

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How to tune channels first time when you purchase a new Sony Kdl 32EX600 LED tv?

Do connection to the antena if you wants to set the TV auto tuned.
During this initial setup, you can perform the following:

1 Select the language for the on-screen display text.
2 Select HOME or Retail mode. [Here you have to select "Home" mode if the set displays "Retail"

3 Connect cable or antenna, then select OK to run Auto

• If you have cable and antenna available, please connect cable first.

• IMPORTANT: Auto Program is only effective when cable or

antenna is connected. If you cancel Auto Program before completion some channels may not be

4 Auto Program will scan for available channels from the signal source directly connected to

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In just bought new Toshiba regza 40" Lcd tv and auto tuned it, but the picture is terible , snowy and colours are not good, what to do...

First of all reset the TV. for that

press and hold the POWER button
on the TV control panel for 5 or more seconds to reset the TV.
Then connect the TV tt any source like outdoor areiel or cable box etc, select the appropriate input, and retune the TV. First of all, connect it to an external antenna, and set it to autotune.

You must configure the ANT/CABLE input source before

programming channels (-left-hand column).

If the ANT/CABLE input signal type is set to Cable, the

automatic channel programming process erases channels

that were previously programmed into the TV's memory.

If the ANT/CABLE input signal type is set to Antenna, the

automatic channel programming process adds newly found

channels to the existing set of programmed channels (and

does NOT erase channels that were previously

programmed into the TV's memory.) To remove an Antenna

source channel from the memory, you must manually delete


To tune the TV to a channel not programmed in the channel

memory, you must use the Channel Number buttons on the

remote control.

Programming channels when the ANT/CABLE input is

configured for Cable will take substantially longer than when

the antenna input is configured for Antenna. This is normal;

however, once channel programming is finished, you should

not have to repeat the programming process again unless
your Cable TV service lineup changes significantly.
Find out the received channels are clear or not. If they are clear, your TV is perfect, and the input device you connects ot the TV is faulty. OK.

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Our new digital LCD tv occasionally suffers from picture breaking up and even total loss of signal, after some time, 5 to 15 minutes the signal is restored. Fiddling with the aerial run and connections has...

Tune to a strong channel.
Go into the menu. Find the Channel or Antenna whatever your tv calls it. Set the signal strength display.
If the signal strength show good and your picture is lost then a problem may be in the tv.
More than likely the antenna is not picking up a strong signal. Try rotating it some.

You can go to to see what stations are in your reception area.

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Screen on tv just says no signal

When installing a new antenna, a TV will often need retuning in order to operate with the new antenna.
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The words "weak signal" flashes on screen at different places and do not receive a picture.

seems like you are using an "off the air antenna" that receives weak signal, you may be too far from the station, go get a roof top amplifier antenna or subscribe to digital service from cable, satellite or at&t uverse. If you think your antenna is getting good signal, try to rescan your tv for available channel. Make sure your TV set up is correct, if you are using Off the air signal, your setting should be set at "Antenna or off the air", then rescan your TV. Normally on Satellite or cable box, you just watch it on video channel or component input, if you are using HDMI then tune to HDMI channel.
Check your connection to make sure they are making good contact. If you can post your set up, I can better solve your problem.
For a resource on "off the air" antenna, go to for help.

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1 Answer

I get no stations on my tv

Use an Antenna that Provides Good Reception of All Channels
  • Most existing antennas used by consumers will provide good reception of DTV signals. (Before making any changes, try your existing antenna first to see of it allows you to receive all the stations you normally watch.)
  • For watching DTV signals, you will need an antenna that provides good reception of both VHF signals (channels 2-13) and UHF signals (channels 14-51) to reliably receive all of the digital signals broadcast in your area.
  • Many antennas are designed only for reception of either VHF or UHF signals (but not both). For example, the commonly used “rabbit ears” indoor antenna is only suitable for receiving VHF signals. To receive UHF signals, an indoor antenna should also include a wire loop or other feature for reception in that band.
  • The reception capabilities of TV antennas also vary considerably, so be sure to talk to retail consultants and look at information on the packaging and/or the Internet to make sure that any new antenna you may choose provides good reception of both VHF and UHF channels. In addition, if you use an indoor antenna and receive signals on VHF channels, you may need to use an antenna with amplification.
  • Many antennas currently being sold as “HDTV Antennas,” perform best at receiving UHF signals; some of these models state that they provide reception of signals on channels 7-13 but actually perform less well receiving those channels. If you obtain one of these antennas, be sure it provides good reception of all the VHF channels as well as the UHF channels.
  • To check for the DTV signals that are available at your location, use the DTV Reception Maps available at
Check Your Connections
  • Check that your digital-to-analog converter box or digital television is connected properly. Make sure your antenna is connected to the antenna input of your digital-to-analog converter box or digital television. If using a digital-to-analog converter box, also ensure that the antenna output of your converter box is connected to the antenna input of your analog TV. Refer to the owner’s manuals of your components if you are unsure of the proper connections.
  • Ensure that your components are plugged in and have their power turned on.
  • If you have a digital-to-analog converter box, tune your analog TV to channel 3. You should see a set-up menu or picture displayed on your TV screen. If you do not see a set-up menu or picture, tune your TV to channel 4. If you still do not see a set-up menu or picture, recheck your connections.
Perform a Channel Scan
  • Digital-to-analog converter boxes and digital televisions have a button, usually on the remote control, that is labeled “set-up” or “menu” or some similar term. Press that button to access the set-up menu. Using the directional arrow buttons on your remote, scroll to the option that allows you to perform a “channel scan.” The channel scan will automatically search for digital broadcast channels that are available in your area. Consult the owner’s manual of your digital-to-analog converter box or digital television for detailed instructions on how to perform a channel scan for your device.
  • Once the channel scan is complete, you will be able to tune to the digital channels received by your antenna. You should perform a channel scan periodically to check whether additional digital channels have become available.
Adjust Your Antenna
  • Small adjustments to your antenna can make a big difference in the number of digital channels you can receive. If you have an indoor antenna, try elevating it and moving it closer to an exterior wall of your home. After adjusting your antenna, perform another channel scan to see if your reception is improved.
  • While adjusting your antenna, it may be helpful to access the “signal strength meter” on your digital-to-analog converter box or digital television to determine whether your adjustments are improving the signals’ strength. The signal strength meter is usually accessed through the menu feature on your remote control. Refer to the owner’s manual of your device for detailed instructions on how to access its signal strength meter. Remember to do another channel scan after you have adjusted your antenna.
  • Television stations broadcasting in digital use both the VHF band (channels 2-13) and UHF band (channels 14-51). Many indoor antennas use “rabbit ears” for the VHF band and a “loop” or “bow-tie” antenna for the UHF band. Make sure you are using an antenna that covers both the VHF and UHF bands and have connected it properly.
If You are Still Having Difficulty:
  • Until June 12, 2009, some stations will be operating at reduced power levels. If you are not receiving certain digital TV stations, this does not necessarily mean there is a problem with your antenna or digital-to-analog converter box or digital television. Check with the TV station to find out whether they are planning changes that will improve reception.
  • When an analog TV signal is weak or receives interference, static, snow, and distortion will often appear on the screen. Digital broadcasting will provide a clear picture; however, if the signal falls below a certain minimum strength, the picture can disappear. This “cliff effect” means that if you watch analog TV stations that have static and distortion, you may have to adjust or upgrade your antenna system.
  • Simple indoor antennas provide minimal performance that may not be suitable for your location. If you are unable to obtain satisfactory DTV reception with your current indoor antenna, you may wish to obtain an indoor antenna that includes features for better reception of UHF signals, as well as VHF, and/or an amplifier to boost the received signal (often referred to as an active indoor antenna).
  • Generally, an outdoor antenna will get better reception than an indoor antenna. However, the performance of outdoor antennas can degrade over time due to exposure to the weather. If you are having problems, check for loose or corroded wiring, broken antenna elements and that the antenna is pointed in the right direction.
  • Try to keep the length of wire between your antenna and digital-to-analog converter box or digital television as short as possible for best reception.
  • “Splitters” that are used to connect a single antenna to multiple digital-to-analog converter boxes or digital televisions reduce the amount of signal available to each device. If you are having problems, check whether reception is improved without the splitter. In some cases an “active” splitter that includes an amplifier can solve the problem.
  • If you are near a station’s broadcast tower, reception of that station, as well as other stations, can be impeded by strong signal “overload.” Consider using an “attenuator” or removing amplifiers to improve your reception.
  • If you decide to replace or upgrade your indoor or outdoor antenna, many types are available from electronics retail stores at a variety of prices. Websites such as provide information on the locations of broadcast towers and the types of outdoor antennas appropriate for the stations you wish to receive. If you need assistance with upgrading your antenna system, check with a local antenna retailer or antenna installer.
  • To check for the DTV signals that are available at your location, use the DTV Reception Maps available at
Hope it may helps:


Jun 15, 2009 | Insignia Digital-to-Analog Converter for...

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