Question about Toshiba 27A30 27" TV

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Toshiba colorstream 27A33 TV

When I turn my TV on, white horizontal lines appear in the upper 1/3 portion of the TV screen. When they first appeared, when I turned the tv off and then back on the lines would eventually go away. Now the white horizontal lines seems to be permanent.

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  • davidmq Jul 05, 2008

    I have the same problems with lines [email protected] I bought it in late 2004 and started doing as soon aswarranty went out

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1.Are these lines only in the upper 1/3 rd portion of the screen?And is there a clear demarcation between this area and the lower portionb, where the image is perfect? 2.Or is thin Horizontal lines evenly spaced around an centimetre apart? If it is the first case, then there si a problem with your TVs SMPS. It is not generating the required regulated 110V required for the TVs functioning. If it is case 2, then there is a simple adjustment at the back - 'SCREEN'. This adjusts the Screen Grid Voltage, and by slightly lowering it, this problem will go away.

Posted on Sep 06, 2006

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Posted on Jan 02, 2017

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What cause Vertical lines on my Toshiba TV Model 46G310U that affect the way the image is seen. Also some white bands Horizontally are appearing?


If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

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1 Answer

I HAVE A LC401EM2F EMERSON TV 2 YRS OLD. WHEN I TURN ON THE TV I INITIALLY GET GREEN VERTICAL LINES, AFTER IT HAS FOR BEEN ON FOR A FEW MINITUES, THE VERTICAL LINES DISAPPEAR BUT A HORIZONTAL LINE APPEARS...


It sounds like a power surge has damaged the color controller and scan line section of the circuit board. The cost to repair is more then the replacement cost. Next time use a UPS for protection (battery back up for computer and electronics). Regards [email protected]

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1 Answer

Horizontal white lines 27A43.


You have some bad capacitors. They are located very near and next to your vertical IC. I would guess you would have to replace maybe four of these! Thanks for asking!

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1 Answer

Toshiba 27A33 horizontal lines at top of screen


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Mar 25, 2010 | Toshiba 27A33 27" TV

1 Answer

Thin white horizontal lines have appeared on the upper quater of the screen. Under these lines a greena red line has appeared. Bottom three quarters of screen is good.


u have to change a capacitor(470mfd or 100 mfd) in vertical section of u'r tv circuit board..if u r a tech person try this...

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1 Answer

White horizontal dashed lines appear and at top of tv screen


If you wish to get some details; visit the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.
Search the site by type in the "BRAND NAME" of your device; (Exclude the model number), in the "Search box at the top right of the display window of the Homepage" to get gathered related posts

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1 Answer

WHITE LINES


Replaced C407 100uf/35V Vertical section.

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1 Answer

Poor picture quality


You need to consider the following tips herein as follow:

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3 Answers

Two vertical lines one at 1/3 screen the other at 2/3's of screen


I have not fixed it yet. But I have identified the chip that is causing the problem. If you have a service manual scan it and post it please, so I can show you the chip.

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