Question about Toshiba 42H81 42" Rear Projection Television

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Im seeing triples on my screen when i use the menu and when i play a dvd theres like a black oval line on the bottom with a rainbow effect..

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Need to replace the convergence amps, possibly some of the yoke return resistors and pico fuses in the convergence circuit,
Bill

Posted on Nov 04, 2008

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Do lamps have adjustment? I have a yellow and blue rainbow effect along bottom of screen. I am pretty handy and well equipped.


This would be a convergence adjustment. Check your user menu on the tv. Look for an item under video settings for a something called "Converge" or "Convergence". See if you can adjust it enough to fix the problem. If not, you may need to access the service menu and adjust from there.

Feb 16, 2011 | Toshiba 42H81 42" Rear Projection...

1 Answer

Black line on top of screen dips down and has


Please post your make and model number printed on back of TV.

Mar 07, 2010 | Projection Televisions

2 Answers

Rainbow on the screen


Do you have any larger speakers close to you tv. Or any magnets been neer it. If you unplug it for a while the tv should have remove the rainbow

Aug 28, 2008 | Panasonic PT-53TW53 53" Rear Projection...

1 Answer

Blue line trouble


Hi Kracka,

Are you able to post a picture of the problem?

It sounds from your description that it might be a 'convergence' problem which is when the red, green and blue parts of the image aren't alligned properly.

Check in your menu to see if there is a convergence setting.

Hope this helps

Andy

Jun 26, 2008 | Panasonic PT-51G41 51 in. Rear Projection...

1 Answer

Black box showing up while viewing DVDs


This sound like a problem with the Closed Caption, on many sets if the C.C. is set to text a black box apears, and since it only happens on DVD you might look at the DVD menu and see if it has this Text featcher in the Closed Caption menu and turn it off

Feb 13, 2008 | Projection Televisions

1 Answer

Rainbow


Rainbow effect has more to do with color wheel style and speed.

Jan 31, 2008 | LG RU-44SZ51D 44" Rear Projection...

2 Answers

I just bought a ilo tv model dtv2794b and playing vcr's is ok but when i try to play dvd's i get big black lines on the top and bottom of the screen like i am watching a wide screen movie, there is a...


Most if not all DVD's are 16 by 9 even in 4.3 mode you are going to have those bars on this TV. Some television have a zoom feature to get rid of that but not this one.

Jan 14, 2008 | Projection Televisions

1 Answer

Diagonal lines on my screen(samsung 55" projection HDTV hcn553w)


Here's the link to the user manual; http://org.downloadcenter.samsung.com/downloadfile/ContentsFile.aspx?CDSite=us&CttFileID=32370&CDCttType=UM&ModelType=C&ModelName=HCN553W&VPath=UM/200310/20031002105141187_P55A_00054A_0410.pdf Check page 28 and 29 for convergence instructions. Give it a try to see if it makes any difference. Check page 27 for the "perfect focus" feature and see if that helps. Could you take a photo of the "diagonal lines" on the set and post it - might help? If you open a menu on the screen, does it also have the lines across, or is it clear as normal. Check page 64 for how to run the demo, and try that. Have you recently unplugged the set from the mains power supply, left it for at least 15 minutes (preferably two hours) then turned it back on? if not, try it and see if you get any change. Check page 38 for the usual video settings - play around with them and see if any significant change? Check page 39 and set the "automatic picture setting" to standard, if it isn't already, and something else if it is - see if you get a change. Check page 40 for the colour tone adjustment - probably won't change anything, but worth a play in case. Check the bottom of page 46 about channel fine tuning - reset at least a couple of channels to 00, see if that makes a difference (long shot). Does the screen itself need cleaning? recommended is just a clean dry cloth - basically have a good close look at the screen when it is both on and off, to see if there are any marks that might be causing the problem - in particular has it possibly been cleaned with a solvent or too aggressively cleaned in a diagonal direction? shine a light on it at a few angles to check, and look from a few different angles too. Check by moving or turning them on and off if any other electric or electronic items near your tv may be causing the effect - speakers perhaps. Move speakers to check. A way to check other items is to totally cut off the electric supply to the whole house for a couple of minutes, except one circuit into which you can plug the TV and a picture source. See if you get a perfect picture - if so, start switching circuits back on 1 by one until it changes. Hope this helps - I think a photo would help a lot :)

Jul 16, 2007 | Samsung HCN553W 55" Rear Projection...

1 Answer

Convergence bad,rainbow affect,deleted from menu not listed in menu after circut breaker fuse blew.


I dont understand the question. Please ask in plain english whats not working and why its not or how it started not to work please!! Whats deleted from the menu and not there??explain rainbow effect as does it move up and down the screen or side by side or sits there and looks like red green and blue lines??

Apr 07, 2006 | RCA P56950 56" Rear Projection Television

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