Question about Vizio L42HDTV 42 in. LCD Television

1 Answer

Sound volume varies from channel to channel.

Sound on certain channel selection varies from none, to weak on Direct TV signals. Model VL420M, serial# LQKEGAK3102832

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 597 Answers

Could be a faulty Directv box

Posted on Apr 26, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How comes that my LG TV 32" model 32LC20 has problems sound and pickture with ABC channels all other Channels are OK ?


If the audio is distorted to certain channels only, it is due to improper AGC adjustment. Weak signals won't processed well. You have to enter the service mode to the set, and have to adjust this value. This is somewhat skilled work, that a user can't do. It will be best to contact any service technician, in this case. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Oct 20, 2014 | Televison & Video

1 Answer

How to resolve TV tuning issues?


Check the orientation of the antenna. Try to rotate it, and see whether the signal strength varies. If the signal strength is too weak, digital channels will show many problems. Try a signal booster. Contact any service technician. http://electronicshelponline.blogspot.com/

Jul 27, 2014 | Samsung DLP HL-P5663W 56" TV

1 Answer

Televison station won't scan


If you are receiving a "No Signal" error message, verify that:
  1. All of the cables physically connected to the TV and the input device are secure.
  2. The input device is turned on.
Your TV needs to scan for channels before it can show programming from an antenna, from cable TV when the cable comes directly from the wall (no cable box), or from a cable or satellite box connected to the TV with a coaxial (RF) cable. Do not scan for channels if you have a cable or satellite box connected using AV (Composite), Component, or HDMI cables. The box selects the channel, not the tuner inside your television. If you are not using the "TV" input, press the INPUT button on your remote until the correct input mode is selected.
To perform a channel scan using the coaxial input:
  1. Press the INPUT button on your remote to view your current input source. The TV (coaxial cable) input must be selected. This may appear as "TV," "ANT," or the channel and call letters of a station.
  2. If the TV input is not selected, press INPUT until the TV input mode is selected.
  3. Open the on-screen menu and select TV or Tuner option. (This varies by model.)
  4. Highlight Tuner Mode and select the correct option:
    • Antenna-over-the air signals from an antenna
    • Cable-direct from the wall cable TV, or a cable or satellite box connected to the TV with coaxial cable
  5. Select Auto Search or Auto Channel Scan. (This varies by model.)
  6. When the search reaches 100% complete, exit to the menu.
  7. Check the available channels:
    • Antenna or direct-from-wall cable-Press the Channel Up and Channel Down buttons on your VIZIO TV remote to view the available channels.
    • Cable or satellite box- Will return only one channel. Use the cable or satellite remote's Channel Up and Channel Down buttons.
If this does not resolve the issue, power cycle the TV and then re-run the channel scan:
  1. Turn off the TV.
  2. Unplug the TV from the electrical outlet.
  3. While the TV is unplugged from the wall, press and hold the Power button on the TV for 30 seconds.
  4. Release the power button.
  5. Plug the TV back into the electrical outlet.
  6. Turn on the TV.
Note: There is also an option to reset the TV to the factory default settings. This option is in either the SETUP or SYSTEM section of the on-screen menu. The option may be "Reset all settings", "System Reset," or "Reset & Admin." Consult your TV's user manual for the location and steps for resetting your model.
  1. Remove the coaxial cable from the DTV/TV connector on the back of your television and perform a channel scan to clear the existing channels. See the procedure above. This should not find any channels.
  2. Re-attach the coaxial cable to the DTV/TV connector and perform a new channel scan.
This video shows troubleshooting steps to use when a "No signal" message appears.

Jun 25, 2014 | RCA 46 46LA45RQ LCD TV

1 Answer

ERROR MESSAGE NO SIGNAL INPUT


What is your TV signal source? Press the Input button on the remote and try another input. (Make sure a DVD player or set-top box is on.) If you are on the TV input, try a different channel. Next make sure that your cables are securely connected to the TV and devices. Replace with new cables to test them. If you use an OTA antenna with a splitter, try a direct connection. (Similarly, if you have an amplifier on the signal, try a connection without the amplifier.)

For OTA or direct cable connections, try accessing the Channel Setup menu and rescanning for channels.

I hope this helps.

Cindy Wells
(I get some weak channels that give No Signal messages when the transmitter has a problem or the weather is bad. I've also had a signal splitter/amplifier fail and block specific channels by becoming a filter. The direct connection identified the amplifier problem.)

Mar 06, 2013 | Sony KDL-40VE5 40" HDTV LCD TV

1 Answer

Some channel no sound


Hello Blwas5 hi, If some channels have sound and others none, its either the TV has poor reception or, its the channel's weak signal. check them both or see if your neighbors TV acts like yours. If thy neighbor reception is good, then thy TV has poor reception, you can't do anything to fix that. get another TV with good reception qualities.

Jun 18, 2010 | Sanyo Televison & Video

1 Answer

No sound on certain channels


Hi leelee, some cable and air signal channels have a separate audio program in the signal(commonly known as SAP) it may be that the SAP is activated or turned ON in your TV. This no sound condition only shows up on those channels that have the provision for it, but the signal is not being transmitted, that's why you have no sound on those channels. You will have to look for the sound key on your remote control and deactivated from there, or you might have to actually select the menu and scroll down to audio features, it is sure that you will find the SAP feature turned on. Good Luck

Apr 20, 2010 | Astar LTV-3201 32 in. LCD Television

1 Answer

Have Direct TV using a Sony Digital Satellite receiver model #SAT B2-2 /Sony Satellite dish purchased in 7/97. I get local channels thru Direct TV. Recently, local channels will show on the Direct TV guide...


Your dish is out of alignment. The local channel satellite doesn't have as strong of a signal, so a slight misalignment will cause problems.

It could also be an F-connector needs to be replaced at the dish or multiswitch (if you have one). Sometimes moisture builds up inside the connector and corrodes the copper stinger inside.

If you go into your satellite signal strength menu and find the local channel satellite, you're sure to see either a weak signal or an intermittent one.

One more thing, if a tree has grown in the line of sight between the dish and the satellite, this will cause signal problems too. In this case, you either have to trim the tree or move the dish.

Hope this helps!

P.S.
The customer service reps at DirecTV usually idiots reading from a script with no real field experience.

Mar 25, 2009 | Televison & Video

3 Answers

Weak or no signal message


  1. Since my problem (Samsung/Comcast) began with a channel selection button pushed on the TV remote when it should have been pushed on the cable remote, I figured the problem lay with the TV.  Although I was getting the "weak or no signal" msg., the actual signal strength bar graphic showed it to be strong. Disconnecting did no good. I surmised that the TV was simply not recognizing the box.
  2. I looked at the manual for my Samsung 750 model. 
  3. Page 20 discussed "Selecting the source". I accessed the TV menu and selected "Input", then chose the "HD..." item from the highlighted list. Voila! My tv works again. 

Jun 08, 2008 | Samsung LN-S4092D 40 in. LCD HDTV

1 Answer

Weak Signal ..


Sounds like you have a bad tuner. The most likely cause on these RCA's is a loose RF antenna input connector. A bypass for now is if you have a VCR use it as the tuner and then connect it to the TV using the composite video inputs. If that faisl as well then you have a bad signal board.

Feb 12, 2007 | RCA HD52W140 52" Rear Projection...

Not finding what you are looking for?
Vizio L42HDTV 42 in. LCD Television Logo

232 people viewed this question

Ask a Question

Usually answered in minutes!

Top Vizio Televison & Video Experts

The Knight
The Knight

Level 3 Expert

73698 Answers

CoppellTVRepair.com

Level 3 Expert

749 Answers

Computer Repairing
Computer Repairing

Level 3 Expert

14641 Answers

Are you a Vizio Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...