Question about Toshiba 57H81 57" Rear Projection Television

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Blue flicker I have a 57H81 and it has developed a blue flicker. Most noticeable in the dark fields. It is very intermittent and borders on just annoying... almost like something is heating up. Any ideas? I am debating on whether or not to turn the set into a boat anchor.

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Im thinking the convergance ic has loose solder connection or is about to go.
· http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
· http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Posted on Dec 19, 2007

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1989 dodge 250 the red ignition wire is getting hot and melting in two when the key is turned to the run position


Blue wire to ignition switch,from alternator voltage regulator.( 12 volts ) ECU power wire, Red wire to battery terminal. Blue wire goes from alternator to the ignition switch. The voltage regulator senses the incoming voltage from the blue wire. ) it grounds the green field wire This energizes the alternator field, and the alternator begins to produce a charge and sends it to the battery via the main output wire. When the voltage regulator senses 14 volts from the blue field wire, it cuts the ground to the green field wire. Good-Day!

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Our 57H81 is about 10 years old and we can hardly see the picture on tv/movies especially - when a dark scene is shown. Do we need to perform maintenance or change out the projection lights to get the...


You can try cleaning the lens/mirrors of the set with a lint free cloth and a cleaning liquid made for cleaning glass. The dark image can sometimes be caused due to dust on these parts. If that does not work then I am afraid that you need to purchase replacement CRTs(the three tubes at the back of the set). Each of them produce one color - Red, Green and Blue and all 3 have to be replaced to resolve the problem, unless you can visually identify a malfunction with one of the tubes(If one of tubes is a lot dimmer than the other 2).

Sep 18, 2011 | Toshiba 57H81 57" Rear Projection...

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Noticable flickering when viewing dark images.


Hello, I too experience this exact same problem. In my opinion, any television under 2 grand is probably going to have some slight imperfection as this; I have tried a few different ones myself. To some, it would appear to only be a minor annoyance, but to those who truly can distinguish a good quality picture between a bad one, or to those people, such as myself, who would find something like this to be unacceptable, this is a disheartening situation.
My friend, I have tried many different settings to see which ones might resolve this issue with the blacks in the picture, or at least reduce it to a barely noticeable level and I have found that when I select the CUSTOM picture mode, reduce the contrast to about 60, turn up the brightness to 62, turn OFF blur reduction,x/v/ color on, CATS on, MPEG NR ON, turn Dark level to LIGHT(this is important) add a little bit of extra color for ex. 52, and sharpness to 75, that this produces a pleasing to the eye performance when watching blu ray movies and dvd's. The flickering is reduced to almost nothing, and the picture quality actually appears sharper and more ethereal in certain ways.
The downside to this is that you are lacking some true depth in the picture's darks, but after your eyes adjust and you are watching a good quality movie, you will notice that there still sort of is enough darks there to compensate. Further fine tuning may produce even better results, jsut have to keep playing around with it. But I am now convinced after hearing somebody come forward with the same exact problem i'm having on the same tv, that it is not a defect but just an imperfection that you sometimes have to deal with when you don't spend like 5 grand on a tv. Good luck and happy viewing!

Jul 05, 2010 | Panasonic TCP42S2 42 in. TV

1 Answer

Sony rear projection LCD pink haze/blue line


Optic engine. No doubt. Those encroaching lines are just going to get bigger and more annoying with every day.

Check with Sony to see if your set still falls under the natural or extended manufacturer's warrantly. Most optic blocks are warrantied for 2 years (3 years or more on some models).

Post your model # and we can tell you if it is covered by the manufacturer.

Jul 03, 2009 | Acer AL2671W 26 in. LCD Television

1 Answer

TV picture is red.


Normal color picture is composed with 3 colors R-G-B (Red-Green-Blue). Picture turns Red means: Missing Green and Blue colors (many reasons: bad contacts, projector tubes dead, and other...). Try to give some "tabs" to diagnose ... I don't know what is the type of your Projection TV, how long you owned it, to have more idea.

May 15, 2009 | Toshiba 57H81 57" Rear Projection...

2 Answers

Toshiba 42H81 - Screen flicker


Since the problem initially would correct itself, it suggests a poor connection somewhere that "heat" would resolve. If you can solder, try resoldering any joints that appear to be grainy or have rings. Please note that these sets will retain high voltages that can be dangerous even when unplugged. If the resoldering fails to resolve the problem, let us know and we'll look further.

Thanks,
Dan

Dec 31, 2008 | Toshiba 57H81 57" Rear Projection...

1 Answer

Soundsticks have developed a loud intermittent annoying crackle


YOUR ONLY OPTION IS TO TAKE IT APART AND CHECK SPEAKER MEMBRANE I SUSPECT THIS HAS PARTIALY BECOME UNATACHED FROM THE SPEAKER IF THAT IS THE CASE IT WILL NEED TO BE REPLACED

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