Question about Toshiba 57H81 57" Rear Projection Television

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Have Virtical and horazonal lines ....Please help

I have had a new main board put in under warranty. Now when we are watching the tv it starts getting virtical red, and green lines,depending on the back ground, about 1/3 and 2/3 of the screen. there are blue line all over. Then the horazonal lines start flashing all over the screen. It has a perfect picture when it is first turned on.

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Re: Have Virtical and horazonal lines ....Please help


Posted on Dec 19, 2007

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My cable port on back broke off, can't afford to pay for a service call. how can I fix it. is it easy or hard. please help.

It's real easy. Just turn it in for repair, and watch tv someplace else. Save up money, by the time you have it the tv might be fixed. If not, the repair shop will hold your tv and your money. You can make payments and stuff.

Oct 19, 2015 | Projection Televisions

1 Answer

Red light flashing screen is green turn off itself

your color wheel/ color main bored has gone bad (red flashing indictating one of 3 things depending on flashing. no power to main board. or to much power/bad board on one of the color boards) or you just need to replace the bulb in it. i doubt its a bulb issue bc you do see a greenness to it at first. but *** will auto shut down till the board is fixed. sorry for the bad news but this is your solution. . if you can tell me what model the tv is i cna find out exactly what it is and how many flashes.

Mar 19, 2011 | Sony Projection Televisions

2 Answers

Colors arched and overlapping

if the option for convergence is still listed under the setting section of the on screen menu, then you need a convergence power supply board. If the convergence option is missing from the menu you need the ITC222 convergence missing repair kit. You can get either one at the following link they include instructions for the repair.

Jul 13, 2009 | RCA R52WM24 52" HDTV Projection Television

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I was just given this t.v because friends couldn't figure out what is wrong with itl. The colors don't line up right,looks kinda blurry depending on the lighting of the program being watched. How do i fix...

According to the manual:
1) go to the "TV Main Menu"
2) Select "Screen"
3) Select Adjust Projection TV (obviously only if a projection TV).
This then allows you to adjust the TV's 3-colors. Selecting GREEN CENTERING brings up a control panel that lets you center the green projection tube on the screen. Selecting RED CONVERGENCE or BLUE CONVERGENCE lets you align the Red & Blue projector tubes. Centre the green projector tube 1st. Then adjust the red & blue until the test pattern on the TV screen appers white.
Good Luck!

Jun 08, 2009 | Proscan PS50700 50" Rear Projection...

1 Answer

Convergence problem ,Help Please

Something is not right here. Is there any possibility that you can get the circuit designation (Rxxx) of the resistors that were "incorrect"? I am not aware of anything like this that can cause the "memory to be erased". The only memory in that area would be the factory convergence settings which can be modified from the service menu. Please try to supply the resistor IDs and I'll check on this.


Feb 13, 2009 | Panasonic PT-51HX41 51" Rear Projection...

1 Answer

GB4308 Ghosting

The cost I don't know, but this can be fixed. There are generally 3 lamps in projection T.V.'s, Red, Green, and Blue. They have to be aligned for the TV to project a clear picture. A credible TV repairman should be able to fix it. Depending on if it's new enough to be under warranty they may cover it as well. Really the only reason to get rid of it is if you want to get a new TV anyway. Depends on the cost of having the lamps aligned.

Jan 02, 2009 | Apex Digital GB4308 43" Rear Projection...

1 Answer

Snoy kp-53hs 30 projection tv

I have a Philips Rear Projected TV and the time mine did something similar it ended up costing me $400 NZD to get the main board replaced. Sorry samsunwest, you may have to call in a service agent to take a look. It would be worth your while checking out the warranty for your Sony before you call though as it could possibly be under warranty.

Nov 09, 2008 | Sony KP-53HS30 53" Rear Projection...

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Sony KDP57WS550 Projection tv red, green and blue virtical outlines on left and right sides

This is a convergence problem. You will need the stk's changed and a pico fuse or 2. also from looking at the pic you might want to clean the lenses and mirror after the repair to bring back some of the vibrant colors the set once had when it was new. This repair should run you anywhere from $300-$500 depending on your area and the tech that comes out. If you need more information or would like to try to fix it on your own please let me know.


Sep 10, 2008 | Sony Grand WEGA KF60XBR800 60" Rear...

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The tv made a loud snapping noise with a white snowy picture. The tv had to be unplugged since it could not be turned off with the remote. When it was plugged back in, the picture returned for a few...

This is caused by a capacitor on the power board going out. The unit is under warranty, but because it is under 30 inches, will have to be mailed back to California. They will replace 2 boards for you: The main board and the Power PCB. This will fix you good as new.

Jun 05, 2008 | Projection Televisions

1 Answer

Vizio 37" LCD color problem!

is the TV still under warranty. if it is I would call Vizio and request a main board be switch and if it is not under warranty I would call a TV Repair shop and have them put in a Main Board.

Mar 04, 2008 | Projection Televisions

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