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Horizontal blue line keeps going on toshiba big screen tv

We recently purchased the toshiba big screen at an estate sale it has bee working great until a few days ago-while on it will all of a sudden have the blue haze, when i go to the test portion to align the colors the HB (horizontal blue line) line is below the main line and it won't roll up --after a few minutes of having the tv off and then back on we can adjust it accordingly but lately it has been getting worse we had to have the tv off for almost an hour before we could adjust the HB--it will adjust once the HB line is above the center line if it is below the center line it won't scroll up when we try what can we do to fix it? THANKS!

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  • Swally522 Nov 11, 2007

    A light blue band is showing up horizontally across the middle of the screen. It appears on all inputs (DVD, HD, VCR) as well as when the Menu is on. Also when a movie scene is mostly white, the blue appears through the picture. In addition, I just replace the light bulb and no improvement in issue.

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4 Suggested Answers

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Posted on Jan 02, 2017

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Ecollier2012
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SOURCE: Convergence lines are SLANTED. Red line is above

Your TV most likely a convergence failure. ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem


  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
Here are some photos of convergence problems.

3dc9420.jpg
645fba6.jpg
0dcec37.jpg
Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

0667c5f.pngSOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site www.TvRepairKits.com. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

Posted on Jun 20, 2009

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ctf1800
  • 4402 Answers

SOURCE: toshiba theaterview lines don't line up

Convergence IC blown stk392-???

Posted on Dec 03, 2007

ladywinn
  • 5138 Answers

SOURCE: ROLLING PICTURE HATACHI

Replace Verical IC and componets in same circuit maybe 2or3 bad capacitors. 100uf 35v ,1uf or 2.2uf 50volt. you need to order vertical Kit.

Posted on Jan 08, 2009

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How to set color, verticl and horizontal lines


Not all universal remote control's operate MENU button on TV!!!
If you have >>COLOR separation ( red blue green) and CAN NOT adjust via MENU button then you must replace conversion IC's>>
part number: STK 392-xxx.....easy repair!!

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I purchased a 52'' t.v. at an estate sale this weekend it finally was delivered today, the picture only stays on for 1 minute then screen goes totally blue, is this an expensive repair? or am I hooking up...


It seems it could be an issue with your DMD board or your Video board, while the TV is on, go to the menu, and if the menu is alos blue, the issue definitely will be the DMD board, but if it's not blue, the issue will be the Video board. They're not that expensive, they're running around 180dlls

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THI IS THE INTERNAL CIRCUTRY FAULT BEST YOU
call the service person and dont try to open it other than in side of TV SET HAVING Hazard of electrical shock be handle most care fully .
and check video board and all.

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WD-52525 screen is jumping all around with wavy horizontal lines etc.


Good Day;

Keep talking to the factory, it is their product. Best Buy won't replace unless it is deemed not repairable and/or terms of the contract. You purchased the extra warranty because you most have felt that the TV might break down. Well, it did, now use the contract to repair your TV.

Good Luck, big IRISH.

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Black screen with colorful line going horizontally through the middle of the screen


Problem in the vertical circuitry.
If you have the know-how, check for "cold-solder" joints around vertical i.c.
Also, bad electrolytic caps.
Voltages ok?
Resistor values ok?
Replace I.C.

Don't tell me the yoke wires were off or gnawed thru by a roach!

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Green flashing screen


http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Dec 26, 2007 | Toshiba 57H82 57" Rear Projection...

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Toshiba theaterview lines don't line up


Convergence IC blown stk392-???

Dec 03, 2007 | Televison & Video

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No picture


a bright thin line in centre is called horizontal line. first of all do not keep tv on unless it is rectified. BUT If you want to put on tv keep brightness minimum to protect your screen for any demage. now solution your problem is in vertical section. 1 check vertical supply. 2 check parts in vertical section or loose contact. 3 yoke connrctor loose 4 ic defective It is not serious problem can be rectified easily

Sep 19, 2007 | Toshiba 32DF46 32" TV

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