Question about Samsung HCM4216W 42" Rear Projection Television

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Sony Trinitron Top Half picture blacked out

A few hours ago, the picture on my Sony Trinitron (5 years old) started to behave strange. The top half of the picture has blacked out. I hear the voice properly, but the picture shows up half only. There is also a bring white light showing in the middle, right where the picture (bottom half) starts to show.

From what I read, it seems like an IC soldering issue, but how do I know which IC to solder and how easy is it to identify the broken IC on the board.

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  • craaashed Nov 11, 2008

    my 5 yr old sony trinitron .top half is black and botton half shows the picture, sound is good

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  • 5,138 Answers

You could have a bad capacitor 35v 100uf ,1uf 50v ,VERTICAL ICs have 7-11pins depends on which one you need LA7830-or 7833,7835,7836,7837 7838 make sure you get correct part.
ThankYou for using FixYa. Have a Nice Day

Posted on Feb 07, 2008

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1 Answer

I have a Sony FD Trinitron 27' Model # KV-27FV310. It is approx 8 years old. After turning it on and watching a full screen for a few minutes; all of a sudden, a line came across half the screen;


top half missing is in vertical circuit of set---if it is a 27 inch and this old consider retiring it and replacing----other option is consider having a shop repair it--a rough guess would be as high as 150 dollars parts and labor is possible for your problems.

May 01, 2012 | Televison & Video

1 Answer

The top half of picture is completely back, please


you have a vertical problem it could be a cold solder joint on the vertical out put ic or a component failing in the circuit
if you have the tools a soldering station and some know how you can fix this

or you may want to contact a local for help with it

Nov 09, 2009 | Sony FD Trinitron WEGA KV-27FV310 27" TV

1 Answer

Blackout area on screen


Make sure the TEXT and CAPTION options are turned off.

I am not sure about the Sonny's, but on my Toshiba a black box appears when I inadvertently leave one of the close captioning (CC) on for text or captions on (such as CC1, CC2, etc.).

Feb 15, 2009 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

Old tv only shows half picture


it looks like some caps are bad in the set.
Have it serviced by a TV repair shop

Aug 02, 2008 | Televison & Video

1 Answer

Black box covering one-half of TV screen


Try turning off the text box function of the closed captioning.

Aug 02, 2008 | Sony FD Trinitron WEGA KV-27FS120 27" TV

1 Answer

Half Picture


I have seen this caused by 2 different problems. The vertical output IC could be bad but it is usually the CXA jungle IC that fails to cause this. Either way the set should be serviced by someone experienced in repairing Sony TV's.

Aug 09, 2007 | Sony FD Trinitron WEGA KV-32FS100 32" TV

2 Answers

Sony TV - Loss of half the picture


sarge, it sounds like the vertical output IC went bad on you. If it was a bad connection or a bad capacitor, your picture would have been a straght line across the screen. They call the output section of the IC a push-pull type of amp, so the top half of the sweep IC went out. If you have had some soldering experience, and or experience with solid state repair, locating the bad IC and replacing it is no big deal. If you havent, stay safe and call in a pro to assist you in this repair, as there is alot of high voltage inside this puppy that is still present even if the set is unplugged. It should not cost an arm or a leg to repair this set. An honest repair on a set like this if you take it in should not exced 125 to 150 bucks. Good Luck PS Please dont forget to rate this thread.

Oct 22, 2006 | Sony FD Trinitron WEGA KV-27FV310 27" TV

1 Answer

Half a screen


The picture on your TV screen is driven from the center to the top and bottom of the screen by the vertical drive circuit. The fact that you can see the entire picture means you have a problem called foldover. This is caused by a failure in the vertical drive circuit where the vertical saw signal is altered by a component failure within the vertical drive circuit. You cannot solve this problem but any good repair shop should be able to correct the problem at a reasonable cost.

Jun 22, 2006 | Sony FD Trinitron WEGA KD-32FS130 32" TV

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