Question about Apex Digital AT2702 27" TV

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I HAVE A SONY KLV-40U100M IS THERE AN ADJUSTMENT FOR HORIZONTAL AND VERTICAL. MY PICTURE IS MOVING ACROSS THE SCREEN FROM LEFT TO RIGHT. THERE ARE GRAY BARS SEPERATING THE PICTURE. COLOR IS ALSO MISSING.

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You've got more happening than an adjustment. There is an IC that handles the sync and my guess is that is bad. You'll probably need a pro if you're not familiar with TV circuits.

Posted on Feb 18, 2009

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1 Answer

Adjust vertical picture


Without remote control you can't. You have to enter its service mode option to adjust picture size, both vertically and horizontally. If you wish to get some details, check this link. http://electronicshelponline.blogspot.com/ Selecting the view option, either to Mosaic / Timeslide / Flipcard, can be selected by the drop-down list, at the top left of the display window, will make surf easy. You can also do a search, by type in the brand name / model number / IC used, in the search box at the top right of the display window.

Nov 09, 2013 | Zenith B36A24Z 36" TV

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Dark horizontal line traveling across the screen vertically


on tube tvs bestto go on main bord look for hairline craks on soldering ok redo them nice it will light up happend to mine also older model thx nick

Feb 06, 2008 | Sony FD Trinitron KD-34XBR960 34" TV

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Sony FD Trinitron WEGA KV27FS100 horizontal lines across top part of screen


Check and replace all electrolytic capacitors in the vertical output section circuit. There will be 5 or 6 of them to replace. Replace all at one time. The fault you describes here is technically known as 'vertical retrace lines'. Visit the site named 'Electro-help' for more details. Click this link. View it in 'Flip card' option, which can be selected from the drop down box menu by the [Sidebar] tag, at the top left corner of the display window. It will make search easy. There are more than 990 posts to different brand TVs now. Sometimes, you might get some more details from there.

Oct 13, 2012 | Sony FD Trinitron WEGA KV-27FS100 27" TV

1 Answer

Very thin black vertical line moving across tv screen left to right on tv


The screen voltage to the picture tube is more than normal. Adjust it by the help of screen pot-meter integrated with Line Output Transformer. Visit the site named 'Electro-help' for more details. Check this link and select the site named above. View it in 'Flip card' option, which can be selected from the drop down box menu at the left top corner or the display window. It will make search easy.

Aug 05, 2012 | Panasonic CT-20SL14 20" TV

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

Picture shifted to the left


Check the horizontal circuit visual check for any burned coils or Inductor. check also the ceramic capacitor in that area.

Jun 02, 2009 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

Control of vertical TV image projected on the screen


You can try looking for 2 things

1. A button on your remote that says either: ARC, Ratio, 16:9, 4:3.... Some remotes have a picture of a square with arrows pointing out towards each corner..... I'm unfamiliar with this set, but it sounds like a widescreen, so give it a go

Apr 22, 2009 | Standard (CRT) Televisions

1 Answer

Half screen


Hello xmen0614,

If the screen is halved in a horizontal fashion meaning that the screen only goes up half way this is an indication of a vertical deflection problem, quite possibly the vertical coupling capacitor or a problem with the vertical drive signal. If the TV is halved vertically meaning the either the left or right side of the TV is black while the other has picture, this could mean a problem with the damper diode, the Horizontal output Transistor, or the horizontal drive signal.

In either case I would suggest doing a ring test on the Yoke Transformer, The IHVT (Integrated High Voltage Transformer).
Also check the Vertical coupling capacitor, and the horizontal drive transformer (Ring test this).

You noticed that I included the Vertical and Horizontal sections? This is because you did not mention which direction your screen was halved in.

If it is halved to to bottom check the vertical circuitry, If it is halved left to right check the horizontal circuitry. For either one do a ring test on the Yoke Transformer.

I hope this helps,

Thank you,

Shuttle83,

http://www.electron-age-technologies-llc.com

Mar 23, 2009 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

Television


Hi,

From what I can understand, your problem is:
1. either a single horizontal line (from left to right), very bright, no picture but with sound, if yes then it is a failure of the vertical section. More often, it is the vertical IC that is at fault, sometimes the vertical capacitor. Still, in other cases, it is a case of cold solder; or
2. multiple lines across the screen with the picture overly bright and with sound. If yes to this one, then it is a matter of excessive screen voltage. This is adjustable using the HV Screen control that is at the rear of the Flyback Transformer.

Hope this be of some help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Feb 10, 2008 | Standard (CRT) Televisions

1 Answer

Jvc av-29ts2ek


It sounds like a vertical deflection problem. You mentioned you had a white HORIZONTAL LINE in the middle of the screen. If this line runs from left to right across the screen it's in Verticla deflection. If it runs from top to bottom, it's in Horizontal deflection. I am assuming the problem is a Vertical deflaecion problem. The repairs necessary are most likley to replace the vertical capacitors or the verticla deflection chip.
Good Luck
Ed
NC Electronic Mills, Wyo USA

Jan 05, 2008 | JVC TM-2703SU 27" TV

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