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TV has lines near top of picture. Picture compresses vertically. It either fixes over time or when you hit the top of the tv

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The vertical output needs to be resoldered

Posted on Apr 23, 2008

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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

Television blank , but there is a white line across tube. I can hear audio


Your TV is in what is called "vertical collapse". About 70-80% of the time it is due simply to bad solder joints on the vertical output IC. You can verify this by tapping on the side or top of the TV, the picture may jump back into position. If it comes back it's as simple as re-soldering the vertical IC. If not, the vertical output IC may be shot or it may be missing one of it's supply voltages.
If the picture has been shrinking or had lines at the top that means there are some capacitors in the vertical circuit that were drying out. If it happened all of a sudden I'd bank on it being just bad solder.
Don't run it like that with that bright line for too long or it will burn in on the picture tube. Then if you do get it fixed you will see that line there all the time!

May 24, 2010 | Toshiba 27A33 27" TV

1 Answer

There are vertical 1" to 2" black lines that come and go. They are on the top half of the screen only. Also, the TV takes 40 min of flashing before the picture comes on. Our TV is about 5 years old. ...


Yes,This tv have two problems.One is the power supply board have dead capacitors,need it to replaced,the other is the vertical lining board on the bottom near the speakers need all the old lining to resolders.The shop will cost u $ half to repair,it to buy a new tv.

Apr 04, 2010 | Toshiba 42HP84 42 in. Plasma HDTV

1 Answer

I have a JVC AV-32950 and have lines running across the top 3 - 4 inches of the picture. The picture also goes black on occassion and I have to hit the top of the TV to get the picture to come back. While...


It may be a dry solder point somewhere near the vertical IC. First take look at the solder points and if you found cracks pls resolder it. if the lines continous you have to replace Caps near the vertical or circuit.thank you

Nov 23, 2009 | JVC AV-32950 TV

1 Answer

I have thin white lines that run across the top of my picture. They are only visible when picture is full screen. The wide screen picture (with the black areas at the top and bottom) do not show this. The...


sounds like bad capacitor in vertical circuit. It's not a hard fix if you know where to look. Repair shop should not have hard time repairing it.

Aug 10, 2009 | Televison & Video

1 Answer

Sony KV-27FS200 bright horizontal line problem


try to replace all filter capacitor on vertical section area that can solve your problem. 

Mar 07, 2009 | Sony FD Trinitron WEGA KV-27FS200 27" TV

1 Answer

Blue vertical line running down my 42" Plasma TV (42PF9631D/37)


I was not sure if the line was going from top to bottom or left to right. the X driver board is for left to right and the Y board is for top to bottom . The Y driver board is a common issue with these sets there is a Y main board and a upper and lower buffer board for the Y axis

Jun 12, 2008 | Philips 42PF9630A 42 in. Plasma Television

3 Answers

Phillips 27" flat tube tv


go to menu. u have a horazontel problem

Feb 07, 2008 | RCA 13R400TD 13" TV

2 Answers

Sanyo DS31520 31 Picture problem


hi there, it is worth for fixing it, cheaper than replacing it. you have a vertical section problem. look for a quilified service personnel for it to fix. ty

Nov 12, 2007 | Sanyo DS31520 31" TV

1 Answer

Emerson EWF2704 problem


Look for vertical output LA7804 7-PIN IC near right rear of set on heatsink. Look for bad solder joints in that area also.

May 25, 2007 | Emerson EWF2704 TV

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