Question about Samsung TXE2746 27" TV

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Trouble there is a black linen on the top of my screen and also there are some line accros the tv w/ noise but this problem is not steady it came and go

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Re: trouble

I need more info please as i dont understand what your asking?? sorry

Posted on Apr 02, 2006

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White lines across tv screen

Without seeing the lines I can't be sure what your set has wrong, but here are a some possibilities:

If the lines are lines are confined to the top inch or two of the screen and the picture looks otherwise normal, the trouble is bad capacitors in the vertical output circuit. Fixable by replacing the bad parts.

If diagonal lines are across the entire face of the picture tube and the picture looks washed out, the trouble is often a bad capacitor on the 200-volt line to the picture tube. This may be on the main circuit board near the horizontal output transformer, or on the small circuit board plugged onto the end of the picture tube. Again, replacing the bad capacitor can fix this.

If your TV is actually an RCA, someone may have bumped a rear-panel adjustment. On the back of the TV near the bottom right are two small knobs. RCA left these adjustments exposed inside of putting them inside the set like other manufacturers. These sometimes get bumped if someone was behind the set cleaning, or if a pet got back there and hit them with a tail. The top knob adjusts focus, and the bottom knob adjusts something called G2 or screen voltage. If this gets turned up too high it can cause the faded picture and diagonal white lines. Turn the adjustment down until a black screen looks black instead of gray.

A bad picture tube or horizontal output transformer can also cause lines through the picture. If this is the case with your set, it's time for a new TV. The transformer is relatively inexpensive but labor costs aren't, and the repair bill may exceed $200. If the tube is bad, there's no point even considering repair. The tube cost alone exceeds the cost of new TV.

Hopefully your lines are easy and cheap to fix. Good luck, and thanks for using Fixya!

Jul 22, 2011 | RCA F35673MB 35" TV

1 Answer

Split screen, kind of inverted w/white wavy lines

It is a calibration problem, let me see if I can find some schematics for your tv.

Jul 19, 2008 | Panasonic CT-32SL14 32" TV

1 Answer

Hi, i have a 20 inch CRT tv of thomson make. I am experiencing a strip of horizontal lines at the top of the screen and also some noise is generated which is very annoying. I just want to know whether...

In my BPL Matrix tv black line of 1.5 inch is coming like cinema scope at the bottom of the screen .How to solve this problem? Once we had shown to tv repair shop, they told that one service number will be there you try to get this number.So where i will get such numbers to solve this problem?

Jun 06, 2011 | Standard (CRT) Televisions

2 Answers

The tv has a black screen with a white horizontal line accros the screen. From where you connect you coax cable, I used to have to wiggle the cable to get video, i currently have audio but only the while...

Your problem is not in the tuner. Since you have a sound but horizontal line only and when you bump the unit the video comes out, this is only indicated that you have a dry joints in the vertical section. Re-soldering the cold solder on that area will cure the problem. Dry joints is hard to spot so you need to work with a good source of light. Vertical IC is located near the FBT and secured with the heat sink.
Hope it may help you.
Have a nice day.
Thanks for using fixya.

Jan 31, 2011 | JVC AV-27950 27" TV

1 Answer

Where is the convergance amp?

Accros the top of the chassi.conv power supply is to the left

Apr 23, 2009 | RCA HD52W58 52" TV

1 Answer

Top of tv screen has a black line and top of tv pict is squashed

Nothing you can do unless you have knowledge of Solid State Electronics Servicing. Looks like a couple of Capacitors in the Vertical Deflection Circuits have become bad.

Nov 29, 2008 | Philips Standard (CRT) Televisions

2 Answers

Tv trouble

MOST BE A VERTICAL PROBLEM if the line cross the screen from left to rigth,,, and if the line cross the screen from top to buttom then is an horizontal circuit problem any way you need a tech how ever if you know about tv repair and have somes skill in the campus try resoldering the vertical output IC....good luck and rate me

Jan 20, 2008 | Emerson EWF2703 27" TV

1 Answer

Rca projection screen problem

I have a Toshiba 27D46 TV that comes on great.. but within 5 minutes goes black with a white line horizontal midway across the screen. Any fix solutions? HELP..!!! Chip

Jan 06, 2008 | Standard (CRT) Televisions

1 Answer

White noise on screen with screeching sound

white unstable lines plus screeching noise it basically due to loose contact at input 1 like antena or cable wire or socket loose. 2 loose contact some where in your tv. 3 loose contact in some electrical thing. 4 loose near tuner section. hope this will help.

Oct 01, 2007 | Toshiba CF32F50 TV

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