TV is 17 months old.
I've been seeing a few dark blue spots gradually appear over the last few months and now an orange spot has appeared in a different location. I use this tv as both computer and tv and it is on sometimes 20 hours a day.
I have an extended warranty, but the repair shop will be taking it away for at least 2 weeks, during which time I will be tv & computer-less. Is there anything I can do or is this outside of my limited bulb changing talents.
I have NOT changed the bulb yet.
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Re: Spots on the screen
Your problem could be dust or dirt on the lens inside the reflection cavity or the problem could be the light engine. If the problem is the light engine, thank god you have an extended warranty as the light engine alone cost somewhere around 1000 buck. Good Luck.
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There is a backlight panel of leds that are responsible for lighting up the screen. If any of the leds or sections go bad that will be responsible for what you are seeing. See if it is economical to replace the back lights themselves.
Or, you may have a hassle with the inverter board that powers the leds.
The white spots are pixels that are burned out. They will just gradually get worse. You will need a new screen or just replace the whole TV. Probably buy a new one for what it will cost to get a new screen put in it.
I have the same TV - I have a dark spot in the upper left hand corner. I have always thought this TV was dark. Be sure to get OME lamp. Cheaper ones are not worth it and can damage your TV more. dlplampsource,com--Just a note if this ever happens to you. TV would not come on in the AM-Had no picture, but had sound. It was not the lamp, but the safety switch. It's blue and at the bottom of the lamp housing. As soon as I flipped it and replaced the back cover, the TV came on.
I hate to say it but what this is is contamination under the actual LCD glass. This propblem starts during the manufacturing process and can rear its ugly head over time or after running at high temperatures for long periods of time. It can also appear as dark 'tiger' stripes. There is nothing that can be done to repair this. If you have an extended warranty, the mfg should exchange the panel for you. If your warranty is up, take photos and contact Toshiba online and try to get them to cover this regardless. This is a mfg defect.
Sounds like Calibration is needed on the projection internals. Your TV uses a rear-projection system and the problem is either in the imaging LCD Unit or the light filter. I see in a previous thread you have changed the bulb. You can invest in a voltage regulator to keep the hardware in factory condition.
Also you can burn a DVD of a stuck pixel remedy video and run it on the screen with full brightness and full contrast. This is used for plasma burns and stuck pixels on conventional Flat panel TVs but can repair color issues with projection systems. This therapy is focused on the imaging unit between the projector and the main drop of your tv.
please feel free to post a more in-depth description or any changes
Sorry, pero tu problema no tiene solucion, solo por garantia...... but I have something for you.... 1. unplug the TV. 2. press and hold ch - 3. conect the plug again (green ligth on) 4. release ch - (service manu apear) 5. with remocon press down two or three times (find something like mp3) and change value from 0 to 1. 6. press exit 7. connect USB with pics and mp3 music. 8. check the pictures and.... the music start...
note. the USB slot must be empty before unplugged the cord.
The LCD screen is going bad. The green spots are where the LCD junction is not being activated by the voltage. This usually happens when the screen is begining to malfunction. Also I would check the connectors between the screen and the screen driver board.
I hope this helps
if these lines are solid black then your panel is probably bad. being six months old it is still under manufacturer warranty. they should be able to fix it for you for free. if they are not able to assist you then there is a way that you can check to see if the panel is bad. mark on the tv with a sticker or peice of tape where the lines are. then take the back of the tv off. find out where the lines are and it should line up with a ribbon cable. unscrew the ribbon cable and take it loose. it will be attached to the panel so dont pull to hard. there will be what looks like a little dark strip on the ribbon cable. these little strips have micro chips in them. look closely at the ribbon cable and if you see and arc spot or a burn spot then the panel is bad. look at one that is good for comparison. if this is bad and you are not able to get it warrantied then the tv is not worth fixing. the panels for these things cost about as much as a brand new tv would. hope this was helpful.