Top 20 Toshiba REGZA 42WLG66 42 in. HD-Ready LCD Television Questions & Answers

Your on the right path, sounds like something gave out on the power board

LCD screens do not work the same as CRT tvs no vertical output IC, you have a screen fault which would need the screen replacing

Get the estimate. When your insurance company sees it, believe me, they won't buck at replacing your TV _especially since the prices of TV's have come down over the years while the quality and resolution has skyrocketed. . .

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Check and replace its tuner. It is faulty. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Sounds like main board fault. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Check on your remote control.

Back-light problem.Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis.If you wish to get some details; check the site linked here.Surf the site with patience.Pull up older posts.It will be best to replace the inverter board as card basis. http://electronicshelponline.blogspot.com/

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/ Line, faults & possible causes to LCD screen are given with illustrations.

Burn is is usually permanent(must replace panel, NOT cost effective) You may have a screen position in your menu to try to wipe it, where the screen stays all white or wipes across screen from black to white to try to clear it) If it is burned in bad enough now it is too late.

Sounds like fault to its main board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ . In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

If your tv don't turn on it is usually a power supply issue.If you remove back panel you will see power supply board,usually that is where the power plug is connected to.look at all the capacitors ,any that are expanded,rounded tops,plastic shrinking away ,replace with equivalent caps from Radio Shack or where ever you get you parts from.Make sure you use voltage values that are equal or higher and be aware that they are polarized so make sure that the positive and negative orientation negative will have a - line on one side of it.

Check the 13.5V regulator and associated parts. Refer the power supply schematic diagram to get details. If you wish to get some details, http://electronicshelponline.blogspot.com/ Pull up older posts.

See if you can bring up settings and if so if there is a diagnostic on/off

need to replace panel .

select to auto channel then press the + volume.

try this place for more info http://electro-medical.blogspot.in/2015/11/lcd-tv-t-con-board-troubleshooting.html

why supply 13volt is not out,but 5v is working

use the tv's setup menu to set the audio properties,eg. speakers on or off when headphones are plugged in.

The real issue is do you have sound or not?You can unplug the set and or a box both if connected for several minutes and then power back to see if when they reboot set works or not.