Question about Toshiba CN35F95 35" TV

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Horiznal line across screen

How much will a vertical picture tube cost to repair.

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  • tommie_scrug Dec 10, 2008

    Does this mean that my TV is worth getting repaired?

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The picture tube itself is not longer being manufactured and the replacement might exceed the price of a new TV.
The vertical line you see on the picture tube is not a failure with the picture tube but a different part inside the circuitry.

Posted on Dec 07, 2008

  • Jaime Hernandez Dec 11, 2008

    If the cost of the repair does not exceed 1/3 of the price of the TV, it might be still worth it to get it fix, but that will be your decision.

    Good Luck.

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2 Answers

Screen picture shrinking . Two wide white horizontal lines


Check vertical output circuits. They control the up and down deflection and when not working you get straight line across front of tube.

Aug 02, 2015 | Televison & Video

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The picture went out on my TV


This is not a user repairable issue and would require a TV repair shop. You may want to consider a new flat screen TV before spending the money on repairs.

Mar 02, 2015 | Televison & Video

1 Answer

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

Lines across the top of screen


If this is a picture tube set (not a thin screen), then you have a bad electrolytic capacitor in the vertical circuit. Just about all picture tube sets that I've worked on that get lines at the top was caused by a bad or leaky cap and is a common problem w/ most sets. There's a very slim chance it could be the vertical ic but normally when it goes bad you will have nothing but a thin white line running across the center of the screen from left to right. If it's just a capacitor, the part would only cost a couple of dollars at most, however there's no way I can tell you exactly which one to change w/ out looking in the set. A repair shop would probably get between $30-$50 to fix it. If you can give me the model number of the tv, I can see if I can you some more info.

Jul 28, 2010 | Sylvania Televison & Video

1 Answer

When I power on my Mitsubishi CS-35313 tv, I only get a thin horizontal line across the center of the picture tube. What could be the problem?


There is a failure in the vertical deflection circuit. Typically there is a vertical output i.c. that provides the deflection vertically. The i.c. itself is a fairly common component to fail. There are some lower power circuits that feed this output device that also could be the problem. When the electron beam in the tube is not deflected vertically it "writes" only horizontally across the center of the screen thus resulting in a single trace. Be careful not to leave this at high brightness for any extended time as it can "burn in" that area of the screen. Unless you are a "techi" this is a job for a qualified technician. Troubleshooting would be in the vertical deflection section of the set. Most of the parts are not expensive in themselves, except for the deflection yoke which sits around the neck of the tube. The cost to repair would typically be the shop labor.

Nov 25, 2009 | Televison & Video

1 Answer

No picture.Just a single line in middle of screen.


No, your picture tube is fine. This is a problem in the vertical circuit that deflects the beam up and down. This repair is fairly typical across most television brands and should not cost too much to fix. I don't want to quote another shops pricing but from us this would run about $150.00 to fix.

Oct 07, 2009 | Toshiba CF36G40 36" TV

2 Answers

GREEN VERTICAL LINES


vertical line ic no pda 3653

Aug 16, 2008 | RCA F36650 36" TV

1 Answer

Tube TV - one thin horizontal line of bright light


Vertical defection failure. Common failure. Pretty easy to repair ($50-75?). However, my general rule of thumb is not to waste any more money on TVs over 10 years old. Too much other stuff in there ready to fail as well.

Jan 24, 2008 | Televison & Video

1 Answer

TV Picture Reduced to Line across the Middle


This is called field-collapse. Either

1. The problem lies in the vertical deflection voltage-doubler circuit. The usual fault is a single capacitor of 100uF/35V that has failed. It is normally connected to a rectifier diode right at the vertical IC. Replacing the capacitor usually gets it working perfectly again.

or

2. The vertical drive IC has failed.

If you are finicky around technical work, then a reputable local repair shop in your locality should do it quickly for you and charge only labour.

Jan 13, 2008 | Symphonic ST419E TV

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