Question about Toshiba 50H81 50" Rear Projection Television

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Wavy junping horizontal lines

My screen is covered with wavy and jumping horizontal lines. It started out when I first would turn it on, and it would take five to ten minutes to stop. Now it never stops. I can watch it after about an hour of being turned on, but it does not stop completely any more. Sure would appreciate a solution. Thanks

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Re: Wavy junping horizontal lines

Requires the hyper board to be repaired . Has to be sent to Toshiba, unless you can change around 15 surface mount capacitors, They usually charge around 420 to 450 Canadian

Posted on Aug 31, 2007

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My samsung projection tv has blue wavy lines on top of screen, I adjusted convergence, the blue will not line up horizontally, is there a inexpensive solution?

It means one of the chips has a bad section inside it, both chips and maybe a resistor near them will have to be replaced, involves soldering as each has about 18 pins soldered in

Check with who sells some kits for this by brand and model number

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1 Answer

Toshiba/ 42H81 / hyper board

You can either yrplace your Hyper board, or replace all the serfice mount capacitors in it. The cap replacement fixes this 90% of the time.

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1 Answer

Horizontal wavy lines on picture

Sounds like the convergence has failed. This video gives more details

Apr 12, 2012 | Mitsubishi WS-55513 55" Rear Projection...

2 Answers

Mitsubishi rearTV has intermittent wavy lines running throughout

Do you have anything to test it in 1080i? Does it do it on all connections or just one? I had a similar problem with my TV that turned out to be a bad input board. Mine would only display 1080i through the Component connections. All others would show pink and green wavy lines. It cost me around 500 to fix it. Unplug the TV. Remove the back cover for the TV. Using a NON-metal object, or gloves, wiggle the input board (that has all the video connections on it) slowly back and forth and see if the problem comes and goes. You will have to have someone watching for you. If something is loose on that board, the problem should show itself. Narrowing down the problem will probably save you money on repair bills.

May 13, 2010 | Mitsubishi WS-65809 65" Rear Projection...

2 Answers

Wavy horizontal lines running through the screen

Ur tv convergence is dead.U must know how to solders?The 2 STK convergence ICS.and some or all it resistors must change.Tries websites Tv repair, to repair it ur self.The shop will cost u $300 for parts and labors.

Mar 17, 2010 | Mitsubishi WS-55613 55" Rear Projection...

1 Answer

Toshiba 50H82 with wavy lines at the top when in HD mode

Found this person on eBay who repairs the hyperboard for $75 quickly with very positive feedback.
I have the same problem and will probably send mine after the holidays.

Dec 03, 2008 | Toshiba 50H82 50" Rear Projection...

1 Answer

Mitsubishi VS-45607 45" Big Screen

Good Day, Delano1981;

It may cure the problem but I would suspect the 9 Volt source

This should resolve your TV"s condition.

Good Luck, big IRISH.

May 27, 2008 | Mitsubishi VS-45607 45" Rear Projection...

1 Answer

Mitsubishi 55" Projection TV / Horizontal Wavy Lines at Start Up

this is very common with these sets. the fix is to replace 11 very very smal capacitor on what is known as the hypermodule. The ideal sitation is to replace the hypermodule. if you can find it. I can do this repair. I have done about 10 at the shop. if you need to i would suggest finding someone who is very experence in surface mounted repair

Mar 18, 2008 | Toshiba 65H81 65" Rear Projection...

1 Answer

Wavy Screen on Startup

I gather from your post that wavy can mean two possible things as the TV comes on, you see the picture flow like ocean waves? In this case you may have 60Hz hum modulating with the picture, this is actually unlikely these days, but I have heard it happens sometimes. The other thing it could be is light horizontal tearing. This happens when the horizontal frequency is too high or too low. You are not going to like my solution because I feel that for problems like this the set must be analyzed not just subjected to "shotgun troubleshooting", so here I go, Take the TV to a repair shop.

Feb 28, 2007 | Toshiba 50H72 50" Rear Projection...

1 Answer

Wavy horizontal picture

the vertical IC outpt needs to be replace

Dec 29, 2006 | Panasonic PT-53WX42 53" Rear Projection...

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