20 Most Recent Toshiba TheaterWide 50HP16 50 in. Plasma HDTV Questions & Answers

Its kind of hard to mess up replacing a board in a TV, only thing to watch out for is the board can hold a charge after its unplugged even if its not working. Here is the service manual for your set. Toshiba 50HP16 Service Manual

Toshiba... • Answered on Dec 06, 2017

The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

Toshiba... • Answered on Mar 12, 2017

Display IC seems to have gone. It will be a replaceable module. Only you have to figure out which one it is. Such thing happen in electronics. Look for any burnt or bulged IC.

Toshiba... • Answered on Apr 10, 2014


Unplug the unit for few minutes, say 15 minutes and then turn it back on. If the problem persists, this would confirm an internal failure. You need to get the TV repaired.

There could be few possibilities ranging from power supply board to y sustain board. You need to open the TV and check the power supply board. If you find any bulged/leaked/swelled cap, you need to replace them.New caps could be available from radioshack or fry's. You need to have electronics repair experience and should know how to use multimeter and soldering iron to repair it yourself.

After this, Would like for you to take your meter and place it on DC voltage, start at the power supply the positive end on VS, Then VA and the negative wire to the panel this is the best ground. Turn on and see if the voltage is present at the VS, VA, V-scan, According to the Label. if a voltage is missing remove each plug from the power supply to make sure they are not holding down the voltage, If you don't find one that's trying to climb, or shows close to what it should be, another method is to locate a short circuit place meter on ohms or beep test follow same procedure no voltage should be shorted to ground. And this is the problem. You can unplug each board one at a time, Starting with the Y-SUS then the Z-SUS.

Let me know,once done so that we could proceed.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Toshiba... • Answered on Dec 11, 2010

So the problem is still the same? Also what exactly do you mean by "power cycling"?

Toshiba... • Answered on Nov 20, 2010

In that case you have a faulty part in it. The tv must be opened and tested. Since you still have sound you should start by testing the Y-sus board - the voltages on exit and the return( Va, Vs and Z-bias). If you have never done this before then call a repairman, you can do a lot of damage if you touch the wrong stuff by accident.

Toshiba... • Answered on Sep 04, 2010

Check the fuses on the ysus & zsus boards. Are any fuses on boards open . Disconect power cabels to ysus board first {board on left} . put tv on . if the light is green the ysus board must be replaced.

Toshiba... • Answered on Aug 11, 2010

looks like your main board fail...

Toshiba... • Answered on Jan 13, 2010

sent me a copy of the schematic

Toshiba... • Answered on Oct 06, 2009

Do you hear the fan running?
Add a fan blowing into the rear of the TV and see if that helps.
Your fan may have stopped working.

Toshiba... • Answered on Sep 07, 2009

It is going to be your mainboard, those red dots are sympton of a damaged mainboard.

Toshiba... • Answered on Jun 13, 2009

I have a Toshiba 50HP15 PLasma flat screen TV. Its been working tone for 2 years now. All of a sudden without warningm the right 1/3 of tghe picture is missing and is black, where as the other 2/3rd of the picture is great picture and in HD. When I press DISPLAY on the remote control is says FULL 720p. When I press the Picture Size button on the remote the message NOT AVAILABLE come on. Anyone with suggestions. Thanks


Toshiba... • Answered on Apr 19, 2009

Hello Iam wondering have you tried to see under the TV setting Audio and see if the fuctions are muted
or try to unplugged the tv and wait for a few minutes plug it back in.

Also when th tv is turn back on or unplugged and plugged back in see if the power button light
flashes red
And listen to the speakers to see if there is a faint crackling

Toshiba... • Answered on Sep 12, 2008

same thing happen to me

Toshiba... • Answered on Apr 24, 2008

Here is a link , not good new's, but atleast it might be a awnser for you , http://answers.yahoo.com/question/index?qid=20071103173251AAdIP62

Toshiba... • Answered on Nov 25, 2007

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