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The sound is there but there is no picture. tv says no signal.

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Move your video wires to the same row as your audio wires

Posted on Oct 18, 2013

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1 Answer

Why do we have sound but no picture?


This is an older picture-tube projection TV.
There are just a few things that can affect all three color tubes at the same time. One of these is "Blanking" and the other is the High Voltage.

Blanking happens when there is not a good signal to the TV, and the high voltage and therefore picture are shut off to protect the high voltage system. Make sure there is a good, strong signal to test it from, like a DVD player, otherwise the TV could blank off from low signal levels. A signal good enough to produce sound may not be good enough to keep the picture on, so that is not a good indication of good signal.

The other, High Voltage, is complicated and dangerous to work on and best left to a qualified technician to work on. High voltage in a TV can hurt or even kill you if you get across it.

Jul 06, 2014 | Mitsubishi WS-55313 55" Rear Projection...

1 Answer

Emerson tv 32 in --the channel 7.1 ABC only has picture without sound.


Check the Chanel 7 broadcast signal on the other tv have sound,could caused by the tv broadcasting signal from the tv station itself.Check if ur tv have a function known as S.A.P. make sure it is off,could effected no tv audio problems,because the tv station in ur city or town don't broadcast in that signal frequencies.

Feb 24, 2013 | Emerson Televison & Video

1 Answer

Trying to hook up digital converter box but cant get reception


This seems related to the TUNER and the IF section as the sound- audio and picture- Y signal does not process with the correct alignment.

Dec 06, 2011 | Audiovox VE727 7 in. Under Cabinet TV

1 Answer

HeMy Vizio P46 started losing the picture but there was still sound. Then the TV had to warm up first and the picture would pop in still with sound. Then the picture went black and now there is no sound....


The tv Tuner signal board is the causes and the problems.That the board,where the incomming broadcasting signal cable plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish tv Tuner signal board for the replacement.

Dec 21, 2010 | V, Inc. Vizio P46 Television

1 Answer

Have picture but no sound! Was fine and picture is still excellent quality. Have tried to go back to default settings but still no sound.


Tries unplug,replug the tv and the cable or satellite boxes back in like about hour later.The tv now,it resetting itself back to the factory setting.The cable or satellite boxes are resetting and upgrading it softwares.The tv signal should have sound now.Not,than the tv Tuner signal board,have a problems and the cause of this problems.That the board,where the incomming broadcasting signal cable plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish Tuner signal board for the replacement.

Nov 13, 2010 | Samsung LN19C450 19 in TV

1 Answer

I have a 42inch lcd polariod tv and the screen comes up blue no picture or sound


It could be the blanking circuit displaying a blue screen if no or a weak signal is connected to the TV. If you have a DVD or VCR try to see if you get picture and sound when ether of those devices are connected to the auxiliary input. If yes your signal input is weak, or you are getting no signal at all. If you go into the TV do you see text? If yes make sure you’re on the correct auxiliary input. If no text is visible the problem is internal and the LCD driver circuit needs to be repaired. If you see text and you are on the correct auxiliary input, but you get no picture and sound then the problem is internal and the front end tuner needs to be repaired. If you see video and hear the sound make sure your channel is correctly selected and set to a working channel. If you have a cable box remove the input to the box and connect it into the coaxial input on the TV and see if you have a picture and sound. If you do the cable box is defective. If you do not see any channels the cable may have lost its signal, and you should connect the cable to another device to check the signal quality. If you have a satellite service provider, and you use a known working device to check the signal and the device works then the TV needs to be serviced.

Feb 18, 2010 | Polaroid Televison & Video

1 Answer

Sound but no picture!


This is a normal, input board defective (as switch module inside betwen tv signal and the AV1,2,...) normaly is video chip defective. You need to send tv to repair shop, to check and repair.

Note: Check for tv picture signal, for quality, normally this circuit when defective, changes the quality signal (first some colours level, sync and then totaly defective is a dark picture)

Dec 11, 2009 | Televison & Video

1 Answer

No picture no sound


Select proper input signal or check signal connections in the back. Attempt to use buttons on TV insteal of remote.

May 21, 2009 | Televison & Video

1 Answer

Picture and sound problem


If your getting your signal via a satelite receiver or HD cable box, its likely that the sound dropouts and picture freeze are the result of marginal signal strength. Does the TV ever do this when using a DVD player? If not, its certainly the quality of the signal.

If the TV is at fault, the problem will be on the digital board.

michtech

Feb 07, 2009 | Samsung HLN5065W 50" Rear Projection...

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