Question about Toshiba 42H81 42" Rear Projection Television

1 Answer

Tv won't turn on

The problem actually started with the tv shutting itself off every now and then. let it sit awhile and it would work fine until it shut itself off again. Sometimes a few minutes later & sometimes it would work just fine for days. Now it won't turn on at all. just has a little red light blinking at me.

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 979 Answers

Good day sir, problem with your tv's switching power supply, at this point you have a choice of visiting/calling your service center, or do it your own? If you want to do it your own, you may need you dissassemble your tvs back panel, to have access to the circuit, locate the switching power supply section and test the following.

  • the switching power transistor usually with a heatsink.
  • the oscillator circuit, with a pulse width modulator IC that controls the switching.
  • the high speed power transformer.
  • the feedback circuit.
  • the capacitor and voltage regulator.
test all of them until you get the bad part. I don't want to sound technical, but thats how service centers do it. You may need to get schematics.

I suggest you call your service center, and let them do it.

Posted on Oct 02, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

2002 alero ran.shut off won't restart.Replaced fuel filter,now it gets gas,but still won't start.


For some reason aleros have this problem every once in awhile. It might be the security on the alero. What you would have to do is turn the key all the way to accel i believe right before you start it and let it sit for about 13 minutes. affter this the security will recognise itself and start your car

Dec 30, 2012 | 2002 Oldsmobile Alero

1 Answer

1998 buick lesabre refuses to start or turnover until it sits awhile


Sounds like the starter to me(I assumed you meant won't crank when hot).I have replaced only 1 starter(on my neighbor's Taurus)in the 15 years after quitting the GM dealer tech job 15 years ago.I probably could make a career just changing GM starters and alternators.(I only have Mopars in my driveway!)

Oct 26, 2012 | 1998 Buick LeSabre

1 Answer

Car starts fine after sitting awhile. If you drive awhile then stop and try to restart it won't.


Check the electronics,cam sensor or crank sensor these are the culprits.

Aug 19, 2012 | 2006 Chevrolet Aveo

1 Answer

2001 ford taurus car starts fine drive it for awhile then shut it off and it wont start let it sit and it will start battery is fine


Does it crank?If you shut it off and you restart after a few minutes and it cranks but won't start or starts and runs rough the injectors are leaking and flooding the engine. Need better description

Dec 07, 2011 | 2001 Ford Taurus

1 Answer

I power on tv and it shuts down after few seconds


There is a high voltage leak here, the reason it closes down is the protection mechanism isw trying to prevent more damage. better to turn it off and have it repaired before it catches fire or blows all the boards and becomes totally useless or beyond repair.

Sorry this isnt what you wanted hear but there is a safeyty factor involved here.

Please rate our help to keep the FREE service online ++++

Aug 31, 2009 | Mitsubishi WS-55807 TV

1 Answer

Turns off randomly


mine does also does yours click at random times and the screen goes out in small places for a split second?

Apr 02, 2008 | JVC AV-32020 32" TV

1 Answer

JVC TV crisis.....HELP


yes... i actually work at verizon the tv is to old for fios because fios is so advanced we run off ot 720 to 1080 depending on areas. what kind of box is it? is it the hd box or stb>

Feb 13, 2008 | JVC AV-32230 32" TV

1 Answer

TV turns off by itself


you have a bad CRT causing the set to shut down. after the CRT has cooled down the computer finds all value to be ok then comes back on....

Jan 07, 2008 | Philips Magnavox 24MC4306 24" TV/VCR/DVD

Not finding what you are looking for?
Toshiba 42H81 42" Rear Projection Television Logo

129 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toshiba Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74211 Answers

Jaime Hernandez

Level 3 Expert

2318 Answers

Henry  Thomas
Henry Thomas

Level 3 Expert

1074 Answers

Are you a Toshiba Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...