Question about Standard (CRT) Televisions

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Horizontal colored lines on Samsung CW-29Z404N

I have 5-6 horizontal colored lines on screen in upper half .
What part I have to replace?

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Is about c 304 ,100uF/50v. i fix it and it works.

Posted on Dec 29, 2009

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SCREEN REDUCED HORIZONTALLY BY OVER 50%


Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/

Apr 03, 2014 | Aiwa TV-S2011 20"

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Horizontal lines on the the screen.


There is a way to post photos here or let me know where.

Mar 14, 2012 | Standard (CRT) Televisions

2 Answers

I have about an inch to inch and half of light colored and looks to be horizontal line at the top of the screen on every channel. Haven't tried anything to fix at this point.


Hi there ! If you know technically try this :
1. try to adjust manually the trimmer at the vertical and horizontal section of your tv (located inside)
2, check for possible cold solder and try to fix it by using soldering Iron and soldering pump.
3.there maybe a change value of resistor inside the horizontal Section.
4. An open and leaky capacitor might also be the cause of Horizontal line at the top of your tv screen . thank you.

Feb 06, 2011 | Sansui 27" TV

1 Answer

Thin horizontal line across the screen


you need to replace the electrolytic capacitor in the horizontal section of of your tv sets,cause the capacitor is weak.need to repair

Jan 11, 2009 | Sharp 27C-240 27" TV

1 Answer

My Siny Trinitron G21M1 is producing horizontal lines across the screen


Hi,
I hope your TV model is Sony KV-G21M1 and you see color bars as horizontal lines across the screen.
Let me now are you tech guy or know how to repair TV to guide you further.

Oct 26, 2008 | Sony Standard (CRT) Televisions

1 Answer

Black screen with colorful line going horizontally through the middle of the screen


Problem in the vertical circuitry.
If you have the know-how, check for "cold-solder" joints around vertical i.c.
Also, bad electrolytic caps.
Voltages ok?
Resistor values ok?
Replace I.C.

Don't tell me the yoke wires were off or gnawed thru by a roach!

Aug 07, 2008 | Toshiba 32A33 32" TV

1 Answer

Toshiba 27


you just say horizontal lines / and across a top of your television.I expect your trouble is the vertical line of your television . sound ok? try trouble the vertical section the check the resistor?

Apr 19, 2008 | Standard (CRT) Televisions

1 Answer

RCA F27442 27" TV - topper half screen stripped and bottom-half is still good


check for bad c14505 220mf.
or u14501 vertical output ic.

Nov 04, 2007 | RCA F27442 27" TV

2 Answers

SONY KV-27FV310: UPPER HALF OF SCREEN IS BLACK


You have a vert sweep problem and unless you know how to trouble shoot this cuircit bring it to a pro. I found out mostly in these sets that the vert output IC is bad.. Also sometimes the b+ filter cap off the fly is leaky and made the IC to fail. Another thing is Im surprised to hear you got a pic with the vert failure and a bright line in the pic!! This could be a big problem when the sets fixed so dont run it too long like this. It could burn a line all the way across the screen and you will see a dark faint line in your pic because of this. BE CAREFULL!!

Mar 25, 2006 | Sony FD Trinitron WEGA KV-27FV310 27" TV

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