Question about Philips Magnavox 15MF400T 15 in. LCD Television

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Cable for my manavox 15mf400t/37

My problem is i get all the channels for about 5 to 10 minutes or so but then my cable cuts out and so i turn the tv off and turn it back on and it does the same cylce again. so i had my cable connections checked and its not my cable connections so what could it be? help......?

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The tuner and or the IF sections in the TV are going defective, or there is a power supply distribution fault that is effecting the TV's front end. One or both modules, or a board may need to be changed.

Take the set to the Philips authorized service to verfiy and fault and have an estimate.

Jerry G.

Posted on May 17, 2008

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1 Answer

Magnavox 15mf400t 37


Check the other sources first - AV, scart, hdmi, etc. If you get the same result your main AV board needs replacing or repairing.

Jun 17, 2013 | Televison & Video

4 Answers

I have a Magnavox 15MF400T/37 LCD TV operating with a cabel connection. As of yesterday it has no functions but when I turn it on I get a message that says Attention No Signal. I have checked the cable...


Some of the newer TV's dont turn on if there is no input signal. Try a DVD player and see if that works. If it does, then the issue is most likely with the cable jack on the TV, which may need to be replaced..

Jul 21, 2008 | Televison & Video

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No digital channels after running auto search


Same thing with my vizio vx37l tv. Did you fix the problem bpakja? If so please let me know how.

Sep 30, 2009 | Vizio VX37L Television

1 Answer

Philips magnavox tv model # 15mf400/37


no i havent a solution yet. am waiting to hear from Philips support & Customer Care by email or phone. I cannot afford to pay you people just to ask a question that i probably could not understand the answer anyway. I know my tv just stopped working and I think it was the manufacturers problem. Like i said it was not an old tv.

thank you anyway

Jul 31, 2008 | Philips Magnavox 15MF400T 15 in. LCD...

1 Answer

Magnavox -Reset


Maybe they mean you need to rescan for channels (and possibly switch the tuner to cable mode).

Jun 10, 2008 | Philips Magnavox 15MF400T 15 in. LCD...

1 Answer

Magnavox 15MF400T/37 Channel chosen is not correct channel


Check the instrucitons to verify if the channel table is pre-setable to designate your own numbers.

Most TV sets have an autoprogramming for the channels. Look in the menu for the auto programming and let the set re-program the channels if your set has that option. This feature will re-program the channals, and re-set their defaults.

If the channels are not able to be pre-setable to a custom table, then this indicates that there is a pre-scaling fault in the tuner or in the uPC. In this case, the set will need service.

Jerry G.

Mar 25, 2008 | Philips Magnavox 15MF400T 15 in. LCD...

2 Answers

Need Help


check the cable connecting to the System unit!, it could have loosen up!
tighten it

Feb 15, 2008 | Philips Magnavox 15MF400T 15 in. LCD...

1 Answer

Some channels have no color or sound


once a signal falls below a certain threshold the color will be lost.
some sets are more sensitive to this loss.
if you see static in the picture on any of the channels then the cable is leaking and needs replaced /tightened.
if a local air broadcast is leaking into a same cable channel on the cable you will get poor to no reception on that channel.
for example : he we have a local channel 7 on the air.
if i tune to cable 7 and see a weak or distorted pic then the cable is leaking and needs replaced.

May 04, 2007 | Philips Magnavox 15MF400T 15 in. LCD...

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