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Rolling bars from top to bottom - Projection Televisions

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Ground problem on TV or attached device. Check outlet with receptacle tester. Then check ground bond solder joints for a dry (dull looking) solder joint, resolder all dry ground solders.

Posted on Jul 19, 2008

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Tv has a rainbow screen


Is it squiggly lines? a rolling bar the starts from the bottom and goes to the top?
Need more info.

Jul 30, 2014 | RCA Projection Televisions

3 Answers

Rolling horizontal black bar 1" tall on the tv screen


this is a problem with heating of some components of the TV inside it.

i would suggest you to look inside the unit and check for components with high heat

Oct 01, 2008 | Mitsubishi WS-48513 48" Rear Projection...

1 Answer

The horizontal hold


If model number correct (the one posted here) set does not have a horizontal (rolls left to right) or a vertical (rolls top to bottom) control.

Verify model and brand so I may offer some suggestions

Mar 22, 2012 | Mitsubishi VS-5075 50" Rear Projection...

1 Answer

I have waves running up my screen how do i fix that


hi
depending on the waves if it is light dark bar rolling from bottom to top it may be a defective
capacitor in IF section or interference comming
for ex:defective neon sign leaky electric power transformer etc. If it is a slow moving
wave but no bars you have a defective power suply regulator and I don't suggest you try to fix it yourself

Sep 29, 2010 | Hitachi 50UX57B 50" Rear Projection...

1 Answer

Rolling green horizontal bar from top to bottom,then bottom to top and so on. sometimes rolling fast,sometimes slow and sometimes the green bar stops in the middle of the screen.every once in a while the...


This TV needs a service adjustment done. Looks like a vertical or horizontal IC is failing. I'd go ahead, and shut off until services adjustment is made. Have you unplugged for a few minutes and plugged back in? However, I'd have a service tech look at it.

Oct 25, 2009 | Mitsubishi WS-48513 48" Rear Projection...

1 Answer

Set want start up


On Deflection board the one that has FBT on it CK cp150 2200uf 16v capacitor look to see if it is puffed up ontop if so it is bad so replace 2 more caps cp114 cp120 220uf 35v.you can buy capacitors at Radio Shack.

Dec 30, 2008 | RCA D52W19 52" Rear Projection Television

1 Answer

Rolling lines


had a few with bad (go here) capacitors

good luck
please mark the post with a fixya

Feb 06, 2008 | Mitsubishi WS48511 48" Rear Projection...

1 Answer

PROBLEMS WITH VERTICAL ROLL


That is not a vertical roll from side to side, this is a horizontal rolling. if the vertical had a roll it would be going from top to bottom. This is most likely a coupling between the horizontal sync circuit and the sync separator circuit. Good Luck

Jun 28, 2007 | Sony KP-53S65 53" Rear Projection...

1 Answer

Horrizontal fluttering when warmed up.


1. HORIZONTAL PULLING AND TEARING, MAY ALSO HAVE VERTICAL ROLLING OR VERTICAL BLANKING BAR LOCKING IN THE MIDDLE OF THE PICTURE. CHECK C2C52 10 UFD @ 50 V OFF THE BASE OF Q2C51 ON THE SIGNAL PCB. 2. CHECK C2P05 100 UFD 16 V OFF PIN 3 OF IC2P01 (9-VOLT REGULATOR) ON THE SIGNAL PCB

Oct 18, 2006 | Mitsubishi VS-60705 60" Rear Projection...

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