Question about Toshiba 42H81 42" Rear Projection Television

1 Answer

Power surge caused fuse to blow on initial power supply

Replaced fuse tv comes on and after about 1 min turns off but will come back on if you turn power on again. just wanted to be safe before trying it too many times and blowin a board or something. What should i look at next before i cause any damage to tv? WE can fix this with your knowledge and help. Thanks BILL

Posted by on

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.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 2,920 Answers

You may need to replace the powerboard in the unit. it sounds like it might have fried already or is on the verge of it.

Posted on Jan 28, 2009

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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

Today my power went out for a split second and came back on I turn my TV back on it makes a high pitched whining noise and the screen wont turn on. Cant add picture but model number is MW30G71.


unplug your tv. let it sit for a good bit. 1/2 hour did your power just go out or did you have a power surge then no power. surges cause the grid to go down for a second too and that causes problems too. surge protectors are good for everything. also are you on cable? if so have the cable company check they're filters into the house may be an issue but check the tv after a half hour unplgged and then plug in and turn on normally? sometimes it needs a reset time period before the fuses inside will reset themselves.

Nov 17, 2015 | Televison & Video

1 Answer

Will not turn on, no blinking lights, power coming from cord is good


Sounds like the power supply board is dead. Probably has a blown power line fuse on the board. A power surge will sometimes blow the fuse and protect the board from damage. Replacing the fuse will restore the TV if this is the case. Most times though, the supply has a blown part that causes the fuse to blow and your only option then is to replace the board.

Mar 23, 2014 | Panasonic Tc-42px24 42 in. Plasma TV

2 Answers

Have a Sony Bravia KDL-40v4100 Flat panel, had a bad storm, lightening strike in front of house, now the tv will not turn on.


Now tv turn on?Front LCD screen panel power light indication flashes or totally dead?Yes,than the power board is dead,that the board where power a/c cord plug into it.Take the tv aparts.That the power supply board,require changing.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Jul 27, 2010 | Sony BRAVIA KDL-46V3000 Television

1 Answer

Tv does not turn on after a thunderstorm and several attempts at power returning to the home. The power went on briefly then shut off several times, now the television will not turn on. We had the tv...


Check the main fuse in the power supply, the TV also has small surge protection devices (MOVs) installed after the fuse, any surges the come along and big enough will cause the main AC fuse to blow. When you surge protector, EVERY connections must go through the surge protector, for example, the AC cord of the TV is connected to the surge protector, the cable connection did not go through the surge protection, the surge then can get to the TV through the cables.

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com

Please post back what you find.

Jul 21, 2010 | Sharp Aquos LC-46D62U 46 in. LCD HDTV

2 Answers

LIGHTNING STRUCK THE ELECTRICAL POLE DOWN THE STREET. THERE WAS A POWER SURGE AND WHEN THE POWER RESUME THE TV DID NOT COME ON


Now ur tv LED power light indication on the front LCD panel flashes?Yes,than the power supply board is dead.That the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay,com to buy a refurbish power supply board for the replacement.

Jul 13, 2010 | Toshiba 37AV502U 37 in. LCD HDTV

1 Answer

There was a power surge this a.m. where the elect shut down for a second and came back on. the only thing i had on the set was a blinking red light. i conculted the user manual where it said if an improper...


It could be a fuse but most likely the power supply got damaged. You should get the power supply checked for any defective components on it that would cause cause the TV not to turn on. Most likely damage is the capicators on the power supply in the event of a power surge.

Oct 12, 2009 | LG 42PX4DR 42 in. Plasma TV

2 Answers

TV WAS WORKING FINE, TURNED IT OFF, THEN TURNED IT ONTHE NEXT DAY


Your tv might have a defective power supply, and/or convergence circuit. The initial cause of the problem, if it is the convergence circuit, is usualy a loose conection on one or two jumpers close to the convergence output circuits (STK392-1110), in with case this chips might need to be replaced and a pico fuse of 5A on the power supply too. I hope this help you.

Sep 24, 2009 | Toshiba 56H80 56" Rear Projection...

1 Answer

Blown fuse


Most likely there was a power event (surge, brownout, ect) that caused the power supply to fail in the TV causing the fuse to blow. you will need to have someone come and look at the unit and give you an estimate. If you keep putting fuses in and blowing them you could actually be causing more damage.

Mar 10, 2008 | Televison & Video

1 Answer

TV will not power up


Check for a reset button in the back. If a reset button is not present. Unplug the unit and take the back off. Look for a blown fuse on the motherboard. If the fuse is blown, replace it with a fuse with the EXACT same rating. Hopefully, the set will come back to life. If not and it blows again, it will need servicing as there may have been damage done to the power supply. You may be able to make a claim with your insurance company or the power company to get it fixed if the power surge was caused by the power company.

Jan 23, 2008 | Olevia LT37HVS 37 in. LCD HDTV

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

Related Topics:

55 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toshiba Televison & Video Experts

The Knight
The Knight

Level 3 Expert

71088 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Jaime Hernandez

Level 3 Expert

2273 Answers

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

Answer questions

Manuals & User Guides

Loading...