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Horizontal Line Brighter than others

An horizontal line that is more bright than the others and is slowly moves verticaly in CRT SONY KV28CS70E. Thanks

Posted by Car Tins on

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Anonymous

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Sounds like a drying up or leaky main b+ vilter capacitor in the front end of the power supply or possibly the b+ feeder capacitor that filters the B+ for the vertical IC. If you know how to test capacitors with a meter or cap checker you shouldnet have any troubles with this BUT if your not a tech I would highly advise you to seek out a pro to assit you with this a B+ main filter can have one heck of a charge on it even after the set is off. Good Luck

Posted on May 28, 2006

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1answer

Black screen with bright horizontal line through center
Your vertical IC may need resolder. You may have a bad capacitor or two that created an extra warm IC and create bad grounds. So resolder and check those caps near and around your vertical IC. If you continue to see this horizontal line you may have to replace the vertical IC. And you may as well check all grounds as well. Good Luck and be careful!
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This symptom is characterized by a thin horizontal line in the middle of the screen. This symptom is caused by the absence of the deflection sawtooth current in the horizontal deflection coil.
The trouble is easily isolated by a continuity test and by checking the most likely defective components such as A)open vertical linearity compensation transformer, B) open capacitor and C) open horizontal deflection coil.
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DON'T FORGET TO RATE:
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Aug 19, 2008 • Toshiba 32A33 32" TV
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Screen displaying a thin white very bright horizontal line.... plz help
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2. vertical ic supply capacitor problen.

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Aug 08, 2008 • LG Studioworks 45 14" CRT Monitor
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Due to vertical section failure horizontal line apprears. You did not mention about picture. Green horizontal line means with picture or without picture. With picture means there is some leakage. Without picture only singe horizontal line means vertical section totally not working. Particularly green horizontal line means maybe leads to jungle ic failure. Please mention your simptom clearly what you get and what you will not get both video and audio. It will be helpful to answer. Based on your question this is my small information.
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May 24, 2008 • Sony KV-35S42 35" TV
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JVC 27" CRT TV AV-27BP3 display shows single horizontal line
I have a similar problem on my CRT computer monitor (AcerView 76c). It is an old screen and I think it is just at the end of its life, much like your TV. Having some background in physics, I would be pretty sure that the problem is with the cathode ray tube's vertical deflection system. The horizontal deflection electrodes are working while the vertical one is not. This results in a display of a single horizontal line (or in my case, a few superimposed) in the centre of the screen. Where both X and Y (horizontal and vertical) deflectors fail then the electron gun firing would result in a single bright spot in the dead-centre of the screen.

So really, we have no choice but to move on and buy a new set as repair is probably just as, if not more, expensive than replacement with a new device. Seeing as your post was in 2007, I hope you managed to solve the problem.

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Dec 24, 2007 • Televison & Video
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Horizontal Bright White Line in Middle of Screen.... and thats it.
by the sounds of it the mon is in a word goosed

but please dont open it up to try and tinker with it !

as they hold a charge for a while beware !
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Nov 10, 2007 • Compaq FS 7550 17" CRT Monitor
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Picture is now a thin horizontal line
now only visible in a thin horizontal line. first of all you reduce brightness to monimum. it just to protect your tv from crt demage. your problem is in horizontal output section as you have mentioned that week or so ago the right and left bottom edges of the picture began to move in like a sideways triangle filled with black so this sympton is due to hor. section problem. your flyback transformer or horizontal output might be defective. but remember check for power supply is ok from surge protector hope this will help.
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Oct 07, 2007 • Hitachi 35UX80B 35" TV
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White horizontal line down middle of TV screen
caution whenever you see horizontal line please reduce brightness of your tv for safety of crt. your problem in vertical section only mostly due to loose contact in connector,print or loose components.
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Sep 20, 2007 • Mitsubishi CS-35505 35" TV
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KV-32CS70 32" TV

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Black screen with bright horizontal line through center

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sony trinitron wega KV-32CS70U red light blinks 2 times? not want to turn on , the red light is blinking 2 times, what is the problem? :(
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Be the first to answer Nov 18, 2012 • Sony KV-32CS70 32" TV
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Hi I have a KV32CS70 which is approximately 5 years old and the following problem has just begun.. The standby light appears in Red as usual when the main power is turned on. When the remote is used to turn the TV on the standby light turns green for approx 4-5 seconds but no picture appears. The standby light then flashes between red and green in intervals of approximately 10 flashes before starting the cycle again. A picture never appears on the screen, it is always off as if there was is power to it. Are you able to advise please? Thanks
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Be the first to answer May 02, 2017 • Sony KV-32CS70 32" TV
0answers

HEllo All, I have a Sony KV-32CS76E TV and I HEllo All, I have a Sony KV-32CS76E TV and I have been using it for 5 years without any problem. It suddenly broke down and its front led flashes 14 times then lights geern for a while after that it again flashes 14 times. I had a search on Net and found out that it is a BACK-END error for this model TV. I would be very gratefull IF you kindly explain what is BACK-END error and what should have been the cause for this because I am very curious to learn the cause for this and which part of my TV might be broken. Thanks for your kind helps in advance ,
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Be the first to answer Mar 24, 2010 • Sony KV-32CS70 32" TV

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