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Weak or no signal

TV has blue screen saying weak or no signal. Cable company came out, ran all new cable, checked cable box, signal comes from box strong, but tv still reads no signal

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  • 3,320 Answers

Either the connector on the set is bad or something is burned out. Try connecting to a tv or ext antenna and see what happens.

Posted on Apr 01, 2014

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SOURCE: The screen shows ''Weak Signal'' and no picture.

Mine did the same thing once. I think all I did was hit the setup on the remote, and let it run back through all the channels and then it worked just fine.

I hope this works for you.

Posted on Mar 21, 2009

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The tv is stuck on this screen with the error message weak or no signal I need help on the steps to fix it


I can't read the screen, but weak or no signal means the signal coming in from the cable box or outside antenna is not good.
You would need to check the box and the cable connections.

Dec 19, 2012 | Televison & Video

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

Cable box is working, TV has black screen and no


cable signal is weak. Tech. must check house wiring.

Jan 12, 2010 | Panasonic CT-32D12D 32" TV

3 Answers

Samsung LCD TV ''Weak or No Signal''


try swicth cable box for testing....if sam problem..need replaced tv main board

Jan 01, 2010 | Samsung LN32A330 32 in. LCD TV

2 Answers

My cable box is hooked up to the HDMI input on the TV. The signal is going out for a second fairly often. The screen goes blue and says no input.


A weak or interrupted cable signal will cause digital dropout. Have your cable company increase the cable signal level to your box from their main office. They may have to send a technician out to measure the signal level to see if it is a problem.

Jul 23, 2009 | Televison & Video

1 Answer

Hdtv qam tuner


More often than not the problem is with the Cable co. They ALWAYS blame the tv. I have had many many problems with the signal quality coming from that co. Here is the most likley cause. The cable signal is probably very Weak. This can be caused by a weak signal coming from the cabls co. or a bad cable inside your home. The age of the cable can effect the signal quality.Note: The cable co is only required to provide a Digital signal. Some companies allow free HD signals and some charge for that signal. The correct approach to this issue is to get with the Cox and ask the if they provide free Hd channels without a box. If they say no then you will have to get a HD cable box to watch HD programs. Themn if they say yes then you need to ask them to send out a tech and test the signal coming from the Head End all the way to your set. If the signal flucuates then you will get inconsistant scanning results.

Jul 04, 2009 | Samsung LN-T4665F 46 in. LCD Television

1 Answer

The screen shows ''Weak Signal'' and no picture, even though audio is coming through from both the Cable DVR box and Blue-Ray player. The cable box connects to the TV with an HMI cable - all five TV inputs...


Mine did the same thing once. I think all I did was hit the setup on the remote, and let it run back through all the channels and then it worked just fine.

I hope this works for you.

Dec 29, 2008 | JVC LT42P789 42 in. LCD TV

2 Answers

HDTV Setup


it wont hurt to run both to the set, they wont interfere with each other

Nov 28, 2007 | Televison & Video

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