Question about Philips Magnavox MT1931B 19" TV

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Power loss every time my power goes out ( even for a second) the TV wants to pull the signal from "inside the tv" according to the cable people here and they say just reset it to pull from the cable. I can't find anywhere in the programming or in any manual to reset anything. How do i make it pull form the cable line again. when i turn off the box i can get pic from the tv alone and it's pulling some of the cable channels but to turn on the cable box attached i get a blank screen. thanks

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6 Suggested Answers


what if i dont have a remote control to unlock the tv

Posted on Jan 05, 2008

  • 8596 Answers

SOURCE: magnavox with pic tube tv skips over channel 3..goes from 2 to 4

You are right about the auto-programming, but Magnavox no longer has the original remote.

For my answer to be right, you must have posted this question to the EXACT CORRECT model # of your Magnavox TV - 27ms343s:

Press TV on your Verizon remote, and then press "0" and "3"

If that fails:
Press MENU to see the TV’s on-screen
menu. In the menu, use VOL.+/_ and
CH.+/_ to make adjustments or selections.
You can press MENU on either the
remote control or the front of the TV to
access or remove the menu.

Posted on Jun 14, 2008

  • 4234 Answers

SOURCE: blue,red,green lines on top of screen for couple months. Now tv wont work.

The foldover is because of a bad capacitor in the vertical circuit. Given the "new" sympotom of a dead set, I would suspect that the vertical IC has failed. This should be a relatively simple repair for a TV shop. If you wish to attempt a repair of this yourself, update this and confirm your model number and I'll post more details and instructions.


Posted on Nov 14, 2008

  • 77 Answers

SOURCE: TV set self turn off after few seconds

It sounds like the voltage regulator in your power circuit. Also you have a capacitor that's going bad somewhere and won't hold a charge. That's why the picture is fine for a while then turns green. Unless you service TV's this one will have to be brought into the shop. Unfortunately it'll cost more than the TV is worth to get it fixed unless it's still under warranty. These days TV's that small aren't worth fixing. You're better off buying a new TV.

-An Ex-TV Repairman

Posted on Jul 12, 2009

  • 1187 Answers


You need the Horizontal timing kit installed in this tv. Ask a tech to install part# 4835 310 57673. You have tv chassis# L04.1U AA...correct? Look on the rear of your TV. This will repair!

Posted on Oct 22, 2009

  • 6 Answers

SOURCE: My Magnavox plasma screen tv, model number:

You either have a cold solder joint in your horizontal deflection circuits or your or in your horizontal output circuit. please be careful due to the fly-back transformer still holds power even unplugged until you discharge it.( ground it out). Hope this helps.

Posted on Jan 03, 2010

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2 Answers

VCR/DVD & Samsung TV: "weak or no signal"

Take the VCR remote, check VCR output settings ( scart1, scart2 , RCA) and signal format (PAL) etc

Jul 26, 2008 | Samsung TX-T3093WH TV

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Sony trinitron kv-es29m80 tv has no led light

The blinks are fault indication. If the standby light blinks 10 times and the set shuts down after that;
Check Q8014 and Q8013 for shorts, leakage, or bad solder connections on the " D" board. If the transistors are bad, check R8051 and IC8005, also on the "D" board

Apr 12, 2012 | Standard (CRT) Televisions

1 Answer

Hi, I have a digital tv plugged into an extension cable in an upstairs (Toshiba) bedroom; it works perfectly - receiving all channels. I have a digital tv downstairs (Samsung) where it seems the wall...

Hi Fiona
Somewhere along the line from the aerial there must be a signal splitter that feeds the upstair and downstair terminals.
Try to find that splitter and switch the output to see if the problem goes from up to downstair.
If it does switch then you know the problem is with the splitter block, and if it stays the same then the problem is with the cable and/or the connectors that run downstairs.
Also the reason you get a pixellated(snowy) picture is because of signal loss during the length of the cable you ran downstair.
If running a cable downstair becomes the best option to fix your problem , then you could buy a cheap 10db signal booster/r.f amplifier to correct the signal loss and a cable splitter to feed both tv`s
That booster would be installed upstair in your case(near the source of the signal to be amplified).
I could send you a small diagram if need be. Hope this will help and Merry Chrismas

Dec 14, 2009 | Standard (CRT) Televisions

1 Answer

Our Mitsubishi TV is flashing a blue screen every 10-15 seconds?

Two questions for you.
1. What is the model of the set?
2. What sources are you trying to watch? Are you on cable, satelite, dvd player, vcr,
which of these are you watching and does the problem occur on all sources or just
certain ones?

Not having the above information, I will give you some information. Blue screen comes up
on these sets because of a loss of video signal. First thing you should do is to check your
cables between your sources to see if a wire has pulled partway or now completely out
say between satelite receiver and set. You might replace the cables in case you have
a broken wire inside the cable.
Some sets have the ability to go into the menu and shut off blue screen so you can
then see what the video looks like even if it is low level. From there you can do some
diagnostics by wiggling or connecting/ disconnecting the cables.
Beyond this there could be a loose connection internal to the set or a part failing, but
be sure to check for those cable connections first as that is the most likely cause. Also
it is good to try it with another video source or test the source on another set to be sure
that the video source hasn't developed a malfunction.

Feb 21, 2009 | Mitsubishi CS-27205 TV

1 Answer

Green light flashing

About the second user with the remote problem, the problem is likely a bad IR sensor/board inside the TV, The IR circuit is the one that receives the remote signal.

About the original problem with the light blinking instead:

If the TV goes in standby, then it is in protection mode.

Ensure also that the fault is not coming from a faulty receiver box sending
bad signal, check if you get same problem on DVD with no receiver box

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible causes.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , starting the flashing light.

If you are in situation one, then the TV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

If you want to DIY you find parts here,

All: Appliance parts, electronics parts & more from

Encompass Parts Distribution

LCD/Plasma Electronic Replacement Parts: Plasma & LCD TVs, Appliances |

On LCD Pay particular attention at inverter and power board, power board can be inspected looking for bulged or leaking capacitors, then tested with a multimeter. The inverter is more difficult to test , there is need to read voltages, should be done by a tech. Also the LCD controller board can cause same problem

On Plasma, test Sustain (Ysus/Zsus) / Buffer boards , cables to plasma, digital board and power board.

On Rear Projection : check lamp, lamp ballast, power board, and convergence.

On CRT TVs, check ballast , flyback transformer, CRT, Tuner, Convergence.

Jan 19, 2009 | Mitsubishi WD62327 TV

1 Answer


Your model has a maximum resolution of 720p. What you might want to do is make sure that both your cable/sat box and game stations are outputting at no more than 720 resolution. It's easy to assume that all HDTVs may accept a higher signal, and while they might, some of the scene changes or handshakes may make that operation cause the symptoms you describe.

Feb 08, 2008 | Samsung DLP HL-P5663W 56" TV

1 Answer


hi there, there is a power supply section problem, do some test, automatic shutdown means a power supply section problem. ty

Jan 10, 2008 | Sanyo HT32744 32" TV

3 Answers

Tv problem

Mine (2005 vintage) is doing the same thing. Wiggling the connector at the rear of the set cures the issue. however, it must be a loose connection inside. How about soldering the connector?

Any other ideas on how best to handle the soldering of the connector inside the set?

May 12, 2007 | Sanyo DS24425 24" TV

15 Answers

Tv won't stay on

My tv is a Toshiba. It comes on for a second and then goes off by itself. I use the remote and the power button on tv and the same thing happens. Is there a solution to this?

Jan 24, 2006 | RCA F27450 27" TV

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