Question about Sony FD Trinitron WEGA KV-27HS420 27" TV

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Only half the TV screen is showing

The top half of the screen went to a single line and the bottom half of screen is ok. What could be the problem? The set is less than 4 years old.

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Adjust from the fly back

Posted on May 30, 2009

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Posted on Jan 02, 2017

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Samsung TV thick black line running across the bottom.


If you wish to get some details; check 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" to 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.

Jul 08, 2016 | Samsung PN51E450 - 51" Class 50.73...

1 Answer

Why half screen is ok, other half I.e. bottom part horizontal lines are seen.


Your LCD or Control Board is damaged. You can replace the LCD or the Board or have someone do it for you.

Aug 03, 2015 | Sony KLV-32BX300 SERIES BRAVIA LCD...

1 Answer

Panasonic plasma tv th42px8ob 2 inche vertical line showing


do the proper isolation proceedure and try unhooking the Su from the SC board to see if you then get a normal picture all the way across the bottom half of the screen? I am assuming the Vertcal extends extends all the way from top to the bottom of the screen?

Aug 06, 2012 | Panasonic Televison & Video

2 Answers

When you turn the TV on the screen splits in two,


it sounds like one of your buffer boards are going bad. these are the boards that help put the picture on the screen. there are 2 boards an upper and a lower board. if you remove one and turn the tv on you will get half a screen. see then if you get the lines. please leave rating after you check.

May 10, 2010 | Hitachi P50H401 50 in. Plasma HDTV

1 Answer

I have a Vizio SV420XVT. There is a green line from top to bottom on the right side of screen. Help me fix this, just went out of warranty


A single line out means a bad LCD panel..The cost for parts will exceed the cost of replacing the TV...

Jul 23, 2009 | Vizio SV420XV 42 in. LCD TV

1 Answer

Half screen showing


ok
keep tv off.
it will only get wors
if sumon dosent work on it soon
the problem you are having in the vertical section of the tv
hav a repairman resolider all conection on the vertical IC and check the serounding componets for falts.

regards daniel.
PS the repair takes me about 15 min.

Jan 13, 2009 | Samsung TXG2746 27" TV

1 Answer

Fault on TV


something fried .. sounds like the vertical has gone ,
call a tech.

Mar 07, 2008 | Televison & Video

1 Answer

Top half of screen looks like 3D


the prob. described points to convergence amp failure. have qualified tv tech to repair..john

Nov 10, 2006 | Akai PT4298HD Rear Projection Television

1 Answer

Half screen activated only


When only a half screen is produced, it is usually a upper or lower buffer board, if the top half is blank then it is the upper buffer, and of course if it's the bottom half then it's the bottom buffer board

Sep 15, 2006 | Panasonic TH-42XVS30U 42 in. Plasma HDTV

1 Answer

Screen split with black bar through center, top of picture shows in bottom


It sounds as you desribe, the vertical output IC and or the b+ feed capacitor off the Hi voltage transformer feeding the vert. IC its required voltage. Not a really hard job to replace, but not for a handi person to do. This should be left to the professional, as there are no user serviceable parts inside this set and with the HI voltage and the safety issues its best to call somesone to assist you with this repair. Good Luck

Jun 14, 2006 | Sanyo DS31520 31" TV

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