Question about Philips Magnavox 42MF521D/37 Television

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Sat signal magnavox tv

Had tv repaired, when I reconnected sat cable, can't get a signal...all other tv's in house are getting one.

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Re: sat signal magnavox tv

Make sure you have it in proper a/v or cable mode

Posted on Sep 25, 2007

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Pixillating picture

Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory ResetF (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here.

Jul 22, 2016 | Flat Panel Televisions

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My 86yr old mother-in-law has a Vizio 320VL and the coax attachment just fell out - TV only 18 months old. TV has just sat there, not pulled or tugged on. Is there anything else t do besides buy a new...

It is repairable but at least consider there is a faster solution--if you have cable or sat for signal the set has rear connections other than the coax fitting that a cable or sat box will hook up to....there are ways to get around the cable fitting that is broken.

let me know if you have questions

Apr 28, 2012 | Flat Panel Televisions

1 Answer


Check to see in audio section of the menu if SAP (secondary audio program) is engaged---this will kill audio only on certain channels.

This feature is also used in many sat or cable boxes so you have to look there also.

Mar 12, 2012 | Magnavox Flat Panel Televisions

1 Answer

Picture but no sound magnavox HD tv

check to see in audio menu for set and sat or cable box if SAP is engaged as this will (Spanish) cause no sound on certain channels.

The problem or setting exists in the set and most boxes providing signal to the set.

Mar 12, 2012 | Magnavox Flat Panel Televisions

1 Answer

How to program for sat

You do not need to program the TV for SAT because your signal comes directly from the SAT, you are only using your TV as a monitor, not a tuner. Connect your SAT via standard rca, component, or hdmi cable and change the input on your TV to the same input that you have connected your SAT to. If you connect via coax cable then set your TV to channel 3 or 4, ALWAYS using your SAT remote to change channels for both options.

Mar 03, 2011 | Flat Panel Televisions

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I have a Panasonic TH-42PWD7 flat screen it's hooked up to a receiver and a cable box from time warner. It's not mine. I'm staying at my friends house. I have sound coming through the cable/sat channel on...

There is sometimes a way to turn of the TV speakers, but it usually cannot be set that way by accident. Plan on audio board damage. Perhaps you fed the TV too loud an audio signal, then overloaded the amp board. I would consider them gone.

Nov 13, 2008 | Panasonic TH-42PWD7 42 in. EDTV-Ready...

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No Cable Picture

Call the cable co. If your getting the cable setup screen from the tv...Its getting that signal from the box...The tv is fine.

Sep 14, 2008 | Philips Magnavox 52MF437S/37 52 in. LCD TV

2 Answers

Magnavox lvd tv

Once it goes black can you bring up the tvs menu?

If yes its a signal issue
If no tv is in need of service. Call 1-888-744-5477 to get referred to a local servicer.

Jun 13, 2008 | Philips Magnavox 52MF437S/37 52 in. LCD TV

1 Answer


call philips to get this srviced under warranty. this repair might take a few weeks because the failure could essentially be any one of several parts. first thing to try is the ssb, then the logic board and lvds cable. if none of these work then you need a new panel

Sep 12, 2007 | Philips Magnavox 42MF521D/37 Television

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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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