Vizio tv seems to have trouble with volume certain ch fox and ch 8 need to increase volume a lot also goes black loses sound g Have dishnetWork does true sound have to be off

There could be several reasons why your Vizio TV goes black after being turned on, including a malfunctioning power supply, a damaged display panel, or a faulty backlight. Here are some steps you can take to troubleshoot the problem:

1. Check the power supply: Make sure that the TV is properly plugged in and that the power outlet is working. You may also want to try plugging the TV into a different outlet to see if that solves the problem.
2. Check the display panel: If the TV is getting power but there is no picture, the display panel may be damaged. Look for cracks or other signs of physical damage to the screen. If you find any damage, you may need to replace the display panel.
3. Check the backlight: The backlight is responsible for illuminating the screen, and if it is faulty, you may experience the symptoms you described. Look for any signs of damage to the backlight, such as flickering or uneven lighting. If the backlight is the problem, you may need to replace it.
4. Reset the TV: Sometimes resetting the TV to its default settings can solve the problem. To do this, unplug the TV from the power source, wait a few minutes, and then plug it back in.
5. Contact Vizio customer support: If none of these steps solve the problem, you may want to contact Vizio customer support for further assistance. They may be able to provide additional troubleshooting steps or help you arrange for repairs.

If it's a new TV, then it might just be as high as it goes. A lot of HDTVs don't come with great speakers due to the small flat feature of the TV not allowing anything better.

You will have to get external speakers for the TV to experience better sound.
Here is a great sound bar that is well priced. http://www.amazon.com/Vizio-VSB205-32-Inch-Theater-Soundbar/dp/B004VGI2EK/ref=sr_1_2?ie=UTF8&qid=1359416740&sr=8-2&keywords=32+inch+sound+bar

I've personally heard that sound bar and they are surprisingly loud and hardly take up any room at all.

busted lamp. please increase the volume of the tv even thought there is a black display. if a volume comes up then chances are the ccfl lamp is busted that is why you get black display.

The fact it shows on tuner and not DVD means not likely a audio problem--check all audio settings in the set's menu AND if you are using a box for signal look there--has to be a setting.

Some JVC sets (brand indicated here) also had issues with when watching the background audio (like a sporting event) was louder than the people talking and could be interpreted as ringing--This is a setting in the set called something like "Theater" or "Hall"

Has to almost certainly be a setting in the set.

Vizio Service Menu Method 1
1.Turn The TV off.
2.Press and hold the {CH +} & {CH -} buttons on the TV.
3.Then press and release the {POWER} button on the TV.
4.Release the {CH +} & {CH -} buttons.
5.Now press the {MENU} button on the remote.
6.You should get your regular menu up, but with a "F" in the bottom right corner of the menu (This is for factory).
7.Press and hold the {MENU} button for few seconds.
8.The Service Menu will be displayed.
Vizio Service Menu Method 2
1.Turn The TV off.
2.Press and hold the {CH +} & {CH -} buttons on the TV.
3.Then press and hold the {POWER} button on the TV.
4.Keep all three buttons pressed for few seconds.
5.Now press the {MENU} button on the remote.
6.You should get your regular menu up, but with a "F" in the bottom right corner of the menu (This is for factory).
7.Press and hold the {MENU} button for few seconds.
8.The Service Menu will be displayed.
Vizio Service Menu Method 3
1.Press and hold the {EXIT} button on the remote for 3 seconds then release it.
2.Then press the {1} {2} {3} buttons on the remote.
3.To exit, press the {EXIT} button.

Hey sherryg98, it sounds like you have a right code, but may not be a code to give full functionality as there are many codes for a Vizio TV.

You can check out this link for more info on codes: http://www.dishnetwork.com/SupportSection/remote-setup

Some codes you can try are 627, 766, 505, 006, 232, 458, 500, 670, 678. Depending on the model of your remote there may be different codes available. I've given the steps to address a remote below just in case.

Addressing Remote to TV:

1.) Press and hold the clear TV button until all mode lights light up.
2.) Release and TV light will be blinking.
3.) Enter code and press #. The TV button should flash 3 times.
4.) Try functions (Volume, Power, etc..) and see if working.
5.) If no function, repeat steps 1-4 with another code.

If you need any further assistance let me know here or email me at [email protected]

Check your audio settings on the tv. It sounds like you have it in surround mode. Make sure it's in Stereo.

The button TV/Video button is used to select operating mode of the television. If you want to watch TV programs select TV. If you want to a watch movie from a DVD player you have to select VIDEO. The The CH UP is for channel search going up and CH DN for channel search going down. The VOL- is to lower the sound while VOL+ is to increase the sound. The MUTE button is used if you want your TV to run with no sound.

It's possible that your sustainers are going bad. These are the two boards that goes vertically on both sides of the TV.

The audio board on your 47" Vizio has gone bad. Replace that board will fix the problem.