Question about RCA L46WD250 46 in. LCD HDTV

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Rca model 46la45rq with big vertical black line

Starts with a flickering red 2 in line, then about a 6 in black line with lines of color along its side, then it disappears,back to little red line

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: 52" RCA Projection TV

This is an indicates what is know as convergence problem...this could also be what is know as deflection problem... have a technician look at it.

Posted on Dec 07, 2007

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premtech
  • 934 Answers

SOURCE: rca p56927 colors out of line

It's most likely a failure of the convergence amp and some other power supply problem in the convergence circuit by the sounds of it... Your unit takes an STK730-130 and some 750k 1/4w resistors for the yoke return. I would bet two or more of them are out of value, at least R19702 and R19703... There are also two diodes Cr19710 and Cr19709. P/N# 164590 which commonly open under a load and are recommended to replace anytime the convergence amp is replaced. Also check Q19700 (Bc457) which crosses nicely to an NTE123a...
Not real expensive in a reputable shop - just a pain this time of the year.. I would recommend getting it repaired, it's worth it..
Bill

Posted on Dec 19, 2007

  • 1 Answer

SOURCE: vertical line on screen

It sounds like you have a bad cable coming off of your Plasma Screen that goes into one of the buffer boards or a bad buffer board (Hopefully the latter which is easily replaced but most likely not!) I have run into the same problem and there is an IC made into the cable that goes out and would be very difficult to repair if it is even possible.

Posted on Jan 26, 2008

  • 1 Answer

SOURCE: RCA TV flickering problem

Help! I have an RCA 40 inch HDTV (Model# D40W20). I've had it since 2005. Recently, the picture will flicker when I turn it on, but will stop flickering after a few minutes. My brother has the 52 inch model and his tv did the same thing before it broke down completely. Does anyone know what the problem could be?

Posted on Jul 24, 2008

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1 Answer

Should the T-CON board be replaced on a Samsung LN40C650 LCD TV to fix the vertical lines problem?


If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.
Search the site by type in the "brand name" to your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

Nov 08, 2015 | Samsung LN40C560 LCD TV

1 Answer

Red vertical lines samsung


If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Line faults & possible causes to LCD screen is given with illustrations.

Jul 29, 2014 | Samsung LN55C650 TV

1 Answer

Picture went black except for partial green and blue lines &2 thin red lines


Vertical scan section circuit fault. Check and replace damaged component/s at its vertical scan output section circuit. If you wish to get some details, check the site linked here. Pull up older posts. Check the site in 'Mosaic' view. It will make search easy. http://electronicshelponline.blogspot.com/

Jan 17, 2014 | RCA MM36100 36" TV

1 Answer

Left side of display has flickering vertical lines


Bad video driver chip for that location. Needs to be serviced.

Jan 14, 2014 | Samsung LN-S4051D 40 in. LCD Television

1 Answer

Sanyo dp26648 has sound, but has vertical lines w/picture popping in periodically.


change your device cables or try to put at a pc to check if isworking your pc

Dec 15, 2013 | Sanyo DP26648-R 26 in. LCD TV

1 Answer

MAY HAVE BEEN HIT BY LIGHTNING. BLACK SCREEN AND 2 COLORED LINES


Replace the deflection board. Sounds like the vertical deflection was knocked out thats why you still have sound. You can get replacement deflection boards from www.tvrepairworld.com

Aug 02, 2010 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

Getting a picture but double visioned and red lines running through it


This is 1 of 2 problems.

1; Convergence(depending on the model of the TV, the convergence ic's will have cold solder joints) 2: vertical ic issues.

If they are different colored lines & the picture also bends, it's a convergence problem. Else suspect a vertical problem. In the case of vertical issues, most of the time it's a defective capacitor (or cold solder joints.).

if it's the 3-crt kind of big screen, it's possible for one of the tubes to be going bad.

Good luck!

Feb 28, 2010 | Televison & Video

2 Answers

Black Vertical line appeared on my Daewoo Plasma


Bad connection somewhere along the bottom or top of the panel, there are boards most likely along the bottom of the screen that control vertical drawing, a connection that breaks as it is heated up sounds about right. check the connectors along the bottom. Be very careful because if you wreck em the screen is junk. The connector that will be at fault will be in direct line with the black bar.

Oct 28, 2008 | RCA L26WD26D 26 in. LCD TV

1 Answer

Flickering multi-colored line in the middle of the screen.


You have a failure in the vertical deflection circuit. This could be either a bad vertical chip, the power supply that runs the chip or a bad capacitor in that circuit. This is usually a repair best left to a professional. There is a small possibility that it could be bad solder connections. If genlty tapping the unit temporarily solves the issue you can try and resolder the pins on the vertical chip LA7841 is the part number. There is also a resistor 1 ohm 1 watt. If that resistor is open you can assume the IC is bad

Oct 26, 2008 | Sanyo DS27800 27" TV

1 Answer

Black Screen with vertical lines down the side?


· http://esupport.sony.com/perl/news-item.pl?news_id=24
· Which models are affected with the "flicker" problem?
A1: There are 12 models in total: KDP57XBR2, KDP65XBR2, KP46WT500, KP51HW40, KP51WS500, KP57HW40, KP57WS500, KP57WV600, KP57WV700, KP65WS500, KP65WV600 and KP65WV700.

Jan 03, 2008 | Sony KP-57HW40 57" Rear Projection...

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