Mitsubishi wt-46809 not turning on

Verify the model number. Some of these Mits. family have bad picture tubes, and oil spills out onto the signal board. Look inside front panel, RHS tube, look below it onto signal board. If you see an oil puddle, then tv is toast!

shutting down can be due to a blown fuse usually in the convergence section. the fuses are soldered in, with a voltmeter you can measure the fuses. if one is open then probably your convergence ICs are bad. about $250-$400 to have a field tech come to you and replace them. The other possiblity is a CRT (picture tube) fluid leak. this is more costly to fix, to check for a fluid leak pull the front lower panel and check for fluid on the chassis with a flashlight. I have sucessfully cleaning fluid from the chassis with electrical cleaner spray. after covering the chassis with a piece of plastic the set worked fine. A slow drip leak won't hurt the plastic, big leaks are another story.
hope this helps
Eric

I’m happy to help further over the phone at https://www.6ya.com/expert/eric_ab7c09ec01841771

it will need to be checked by a tech to determine the exact cause

electech

First reset the TV set by unplugging the AC cord for like 5 minutes. then plug it back on again, try turning on the TV, if it still dont turn on then I suspect a blown fuse or worse.

the vertical output IC may need re-soldering or it may be defective and need to be replaced. my guess would be bad solder on the vertical IC.

If you can solder or know anyone who can you can repair this set easily for less than 20.00 All you need are 2 convergence ICs that take less than an hour to remove the old and replace the new ones. If you would like to have a service manual emailed to you for your model. You can buy one at the following link for 10.00 or 12.00 dollars and they will also provide you with free unlimited support to help you with your repair. here is the link.
http://servicemanuals.vstore.ca/

Fuses and IC's are soldered in on large PC board in center of chassis....
Your model is a tight fit that is usually repaired by chassis pull first, then
board repair, normally by a skilled Mits tech........

One or more fuse devices open==caused by convergence IC

shorted. Solution==replace fuse(s) and STK I.C.(s).

I can help u fix in live chat!

try live support!