Question about Philips Magnavox 20MT4405 20" TV

1 Answer

Magnavox 19prc1 0121

The Horizontal hold jumps in and out. I can't find an adjustment. Granted I'm from the era when there were pts and a screw on the back. Can you help me.


Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 2,992 Answers
Re: magnavox 19prc1 0121

There aren't any adjustments anymore. This can happen as parts inside age and values change. Also solder connections can fail over time and cause problems. The problem you describe can be in any of several areas of the set. There really isn't anything you can do yourself to repair this. If you want to keep the TV you can get an estimate for repair, but this might be a good time to check out sale prices on new TV's and think about replacing it.

Posted on Dec 16, 2008

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

RCA 20F514TD has lost horizontal hold. How can I adjust this? I have found no button or menu option discussed in the manual or by searching.

Horizontal rolling is the fault to your TV I assumes. It is a circuit fault. It can't be adjusted by customer controls. Contact any experienced service technician.

Nov 26, 2012 | RCA Standard (CRT) Televisions

1 Answer

My Magnavox plasma screen tv, model number: 42MF237S/37 makes a clicking sound when I try to turn it on. No sounds, no picture, just the clicking noise. Things I have tried so far: 1) Turning the TV off...

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.

Jan 03, 2010 | Philips Magnavox 27MS343S 27" TV

1 Answer

How do you adjust the horizontal width on a Magnavox TS2706? or where can I find a service manual

Unfortunately there is not a control 'Potentiometer' that says - Horizontal Size -
Check this web site out -

A/V Media Guy

Nov 22, 2009 | Standard (CRT) Televisions

1 Answer

Horizontal lines in the top

you should never fix the inside of the tv unless you are a professionel tv repair man
there is High voltage and the only thing you should to is get a new tv set.

Nov 15, 2009 | Standard (CRT) Televisions

1 Answer

The tv screen is moving really fast

This is your VSync. On older TVs, there is a dial you can adjust to hold the image in place. Do this only if all channels are appearing with the same vertical movement.

Nov 27, 2008 | Standard (CRT) Televisions

1 Answer

Magnavox tve244239

There are vertical and horizontal adjustment in the tv, however it requires removing the rear cover.
If you are unsure of the adjustments rather let a qualified tech service the tv for you.

Apr 15, 2008 | Philips Magnavox 27MS343S 27" TV

1 Answer

Magnavox TR2512 vertical/horizontal hold problems

Subjecting a TV (or other electronic devices for that matter) to moisture etc is not good for them.

From your description, it sounds like the high voltage transformer (HVT) is arcing. This can potentially destroy the circuit boards, or even cause the set to catch fire.

Fiddling with unrelated controls will just create more problems, but not solve the original one.

As TV's can store potentially lethal voltages (around 25 thousand volts!) long after power is disconnected, if you are not experienced in repairing them, you would be well advised to take it to someone who is.

Magnavox are known for the HVT problem and personally, I wouldn't waste money repairing one.

Hope this helps.

Mar 26, 2008 | Standard (CRT) Televisions

2 Answers

Magnavox MT1340B Service menu


0 6 2 5 9 6 i

Where i is the i+ or info button.

Mar 14, 2008 | Philips Magnavox MT1340B 13" TV

1 Answer

Horiz adjustment on magnavox 20ms233s

I can tell you genericaly what the fault is. I have not worked on your particular model, or have the service manual for it.

It is not an adjustment. There are some electrolytic capacitors that typicaly go off value with age. These would be located in the horizontal scan amplifier area.

The set will have to be properly serviced in order to bring it back to normal operation. This is not something you can fix yourself.

Jerry G.

Dec 12, 2007 | Philips Magnavox 20MS233S 20" TV

1 Answer

Green horizontal lines across screen

try adjusting the green screen control. remove the front bottom panel of the tv by removing any screws holding it in place. gently pull of the front panel, there are gromets holding it in place, you will be able to gently remove the front, just make sure you get all those screws. now reove the small wodden or plastioc panel. now you will see the screen/focus assy. check to see of the screen controls are the top 3 or bottom 3. adjusted the center screen it's the green one, the other 2 are the red & blue. it is best to adjust in a dark room where the lines will show up easier. good luck

Dec 19, 2006 | Hitachi 43FDX01B TV

Not finding what you are looking for?
Philips Magnavox 20MT4405 20" TV Logo

Related Topics:

270 people viewed this question

Ask a Question

Usually answered in minutes!

Top Philips Standard (CRT) Televisions Experts

Sp Gupta

Level 3 Expert

656 Answers

Jim Evans

Level 2 Expert

186 Answers


Level 3 Expert

485 Answers

Are you a Philips Standard (CRT) Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides