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Fault on TV

Our Toshiba TV - 36ZP46P has had a problem after 3 years without fault, worked this morning ok, but this afternoon suddenly had problems when switched it on.

It appears to have lots of lines across the screen, lots of colours as if it cannot put the picture together.

Bottom half of screen is black and the top half has loads of horizontal lines, any ideas?

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  • blakerp Mar 14, 2008

    It seems that Toshiba must know they have a problem with this model as they have offered to send the part, free of charge, to their authorised repairer, who will then pick up the TV and take it away to repair.

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1 Answer

Something fried .. sounds like the vertical has gone ,
call a tech.

Posted on Mar 14, 2008

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Toshiba 50HX81 projection 'tv- blinking red light


The TV is on protect mode.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.

If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible reasons.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.


If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occur are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.

Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.


If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

Jan 27, 2009 | Toshiba 50HX81 50" Rear Projection...

2 Answers

I have a 42" Wall Mounted Plasma Screen TV Set have had it Now for aprox 5 Years with No problems at all. However this morning when I turned it on the Picture and sound was OK, and then the Picture...


If the buttons on the remote AND the buttons on the TV case do not work (channels do not change and you cannot open or navigate the menu), the TV has stopped responding. Reset the TV as follows:

NOTE:
Some TVs have a reset button. If available and accessible, try using the reset buttons before using the steps below. Using the reset buttons can save time.
Figure 1: Example of the reset button labeling on the LC2600N
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1. Unplug the TV power cord from the power outlet.
2. Unplug any connected devices (DVD, Set-top boxes, etc...)
3. Press and hold the TV power button for five seconds.
4. Plug the TV power cord back into the power outlet and turn on the TV.
5. Open the on-screen menu to confirm that the TV is responding again.
6. Turn off the TV and reconnect the devices.
7. Turn on the TV.

Jul 15, 2008 | Projection Televisions

2 Answers

Mitsubishi vs-50605 TV can't turn on


You need to try self test, this is when you press the Menu and Device/Input button on panel at same time for 5 seconds then release and you should see a 2 digit sequence. Blinks then short pause then more blinks, count them and then you will come up with the error code. If you have an error of 2-3 or 2-4 you need to replace C411 it's a 2200uf @ 35v and C412 10uf @ 50v both on main board!

Jan 11, 2008 | Mitsubishi VS-50605 50" Rear Projection...

2 Answers

No Picture.


I have the same TV, your projection bulb has quit/failed.

A loud pop was heard and the picture has gone followed by a red led fault light clicking on and off.

if your tv is less than 1 year old, and you registered it with Toshiba, you could qualify for a free replacement.

otherwise expect to pay 200.00 for a new bulb from Toshiba.

only good thing is you can replace it yourself, only tool needed is a phillips screwdriver.

you can check EbaY for prices less than 175.00 to 150.00
i am on my 3rd bulb within 4 years....

good luck!

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1 Answer

Blue shadows/ghosts


how old is the tv ??
if this tv is older than 5 years it may need to refill the liquid on the proyection bulbs and/or could have contaminats in the fluid causing the ghost and to fix that you will need a professional person to do it

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1 Answer

No video on a 50H82 Toshiba Projection


If the screen is lit, then there is high voltage. If there is no video, and the screen is lit, then there is a loss of video. The fault can be anywhere along the main video path before it gets decoded in to the red, blue, and green compositions.

If the screen is not lit, most likely there is a high voltage failure, or there is a failure in the bias supply for the tubes.

When there is a loss of high voltage, this can be from any of the components in the high voltage area. Some of the main things that go defective are the flyback, high voltage multiplier, and various other small components.

Have you considered to replace the set with a good Plama or LCD set? This repair may end up being on the expensive side.


Jerry G.

Mar 10, 2008 | Toshiba 50H82 50" Rear Projection...

1 Answer

Toshiba 43A61 - No Picture, no sound


If your set all of a sudden won't come on, e.g., the screen is blank, but the LED on the under the screen next to the on/off switch keeps flashing, then there may be an internal fault on the set that needs to be reset.
To force the reset, try this:
  • Unplug the set and wait a few seconds
  • Replug and see if the video returns
Whenever the set senses an internal fault through its monitoring circuitry, it essentially shuts down the set. The flashing LED provides the indication that a fault has been detected. Removing power to the set resets the monitoring circuitry. When plugged back in, the circuitry again does a check of the system. If it finds that there truly is a problem, then the set is shut down and the LED will again flash. In this case, you need to call a service tech. Most of the time, however, the unplug/replug routine is enough to get the set up and running.

Dec 11, 2007 | Toshiba 43A61 43" Rear Projection...

1 Answer

46h84 toshiba rear projection tv


possible yoke fault or deflection /ask for an estimate before the repiars are done.might cost you a service call.

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1 Answer

Limited blue


your tv has a fault in the matrix board the blue driver volt to the screen is missing or some dried up soldering at a pin should be seen by qualified , but sereen is ok , regards please don't forget to rate thx

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1 Answer

Power Problem


I had the same thing happen about a year after I bought this model in late 2001. I had to call in a repair person to get it fixed. It was, I believe, a convergence board that blew out. It cost about $400 for the repair but the TV has worked fine since. The repair person said this was a common fault at that time with these Toshiba rear-projection sets.

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