Question about Toshiba MD20F51 20 in. TV/DVD Combo

1 Answer

Power problem TV turns off for no reason-can't get the power to stay on. Worked fine yesterday and the previous two years.

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.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 934 Answers
Re: Power problem

A common failure in these units is Q401, Toshiba p/n# Bz510004 is a 2SA1624 (HV amplifier) which finally fails due to a resistor R408 Toshiba p/n# Bz210285 a .47 ohm/1w metal oxide having changed in value and at last opening...
This isn't an expensive repair for a qualified shop - but I would suggest not continuing to test your shutdown circuit. What's happening is that HV (high Voltage) is builds beyond tolerances and the shutdown circuit turns your unit off to keep from causing any severe damage. If it failed you could likely burn out the SMPS or cause some substantial damage..
Good Luck!

Posted on Dec 01, 2007

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

1 Answer

RCA TV doesn't power on

Check the fuse. Check is you smell any burned fume from the TV..
Next time give the model and year of your TV.

Mar 24, 2012 | RCA 20F510TD 20 in. TV/DVD Combo

1 Answer

Philips HDTV does not turn on

i this problem is in pwoer cord u change it try to on it your problem will be sloves

if the poqwer code is ok then chak your tv trnsformer

May 15, 2008 | Quasar VV-1301 13 in. Combo

1 Answer

Magnavox 19MD358D experienced a power surge, will not turn on. What are the steps to troubleshoot?

The Maganvox TV was still under warranty, I called 1-800-705-2000 and talked with a TV Tech. He instructed me to unplug the TV for one minute. This is called a "hard-reset". I waited for one minute, plugged the TV directly into the outlet, turned the TV on and it worked.
The reason I plugged the TV directly into the outlet and not the power strip, is because I think the fuse burned out in the power-strip.

Nov 07, 2009 | Philips 19MDTR20/99 19 in. TV/VCR/DVD...

1 Answer

Tv plays for a few minutes then goes off. red light blinking on front. have rear cover off, when tv goes off, tap tin box, comes back on. tap again goes off. don't know if easy to replace.

there are two alunium things in the middle of the board with something screwes to them. one was loose, could move it back and forth and tv would go on and off. i put a rubberband around it and a thing that looks like a small tramsformer. now it stays in the possion that the tv stays on. worked fine for 6 hours yesterday. only us the tv occasionaly so hoping it will last.

Oct 27, 2009 | Toshiba Combination Televisions

1 Answer

Tv turns itself off after bout ten seconds

Your over voltage circuits(hi-voltage and low voltage) are defective.When the voltage exceeds the specs it shuts off the tv.Unless your a service tech,you can't fix this.There are components on the main circuit tha t have to be changed.Sorry, no easy fix.

Jan 03, 2009 | Emerson EWC1303 13 in. TV/VCR Combo

1 Answer

TV will not hold power

Could be the parental control.  See Mark Z solution for power LCD blinks, put TV will not power up. Hold remote power switch down for 6 to 8 seconds to get out of parental control mode. 

Nov 01, 2008 | GE 13TVR70 13 in. Combo

1 Answer

DVD problem with Toshiba TV/VCR/DVD Model MW24FP1

I've only had mine for 3 years- DVD didn't recognize 2 out of 3 discs or would cut out- started about a year ago. Today the whole picture went out. Just don't make them like they used to

Mar 04, 2008 | Toshiba MW24FP1 24 in. TV/VCR/DVD Combo

4 Answers

What do I do when my Emerson TV keeps turning off by itself?

I had the same problem with mine turning off after 3-5 seconds. After much research I found a suggestion that on some combo units the vcr part could have a power supply cutout if it is not working correctly. I tried to insert a tape and found that the tape mechanism would not accept a tape. I used a little bit of force and managed to insert a tape. I then played the tape forwards and backwards and the power stayed on! I ejected the tape and found the TV then worked just fine. The power has now been on for over one hour. I hope this give you another avenue to try and fix your problem.

Nov 30, 2007 | Combination Televisions

2 Answers

Red key symbol

Use the original remote with the tv on hit the F button at the top and the mute button at the same time. Worked for me. Hope this helps.

May 26, 2007 | Apex Digital AT2014DV 20 in. TV/DVD Combo

1 Answer

No picture when I turn the tv on only sound


Dec 14, 2006 | Sharp 27DV-S100 27 in. TV/VCR/DVD Combo

Not finding what you are looking for?
Toshiba MD20F51 20 in. TV/DVD Combo Logo

Related Topics:

117 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toshiba Combination Televisions Experts

The Knight
The Knight

Level 3 Expert

66587 Answers

matt martin
matt martin

Level 3 Expert

1187 Answers

Jaime Hernandez

Level 3 Expert

2267 Answers

Are you a Toshiba Combination Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides