Question about Samsung LN46A550 LCD TV

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At initial startup (don't turn off all day) once tv turns on the screen has a heavy vertices green or red overlay...tv will turn itself off then come back on by Itzel's..may do this twice or s

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  • Samsung Master
  • 73,698 Answers

Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here.

Posted on Jun 17, 2017

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  • 2 Answers

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Posted on Jan 02, 2017

Coldcut
  • 1554 Answers

SOURCE: Static lines one screen

as the top is ok and the bottom has this issue.
It looks like the circuit board has a bad connection to your screen.
it is not repairable by you and not an adjustment.
you need to have it repaired.
don't you miss the old wack on the side fix?

Posted on Feb 17, 2008

  • 395 Answers

SOURCE: Red Vertical line across tv screen.

remove and reseat the system board if that doesn't cure it replace the system board part number AA94-15695A get it at www.vancebaldwin.com price $158.90.
this is what the board looks like
9d2aaa0.jpg

Posted on May 15, 2008

ZaneD
  • 41 Answers

SOURCE: Samsung hl-s6186 screen flickers and sometimes goes green

The humming will usally come from the color wheel(one of the only moving parts), which is part of the light engine. If the tv is starting to get a green picture that is a sign that the light engine is on it's way out.

Posted on Aug 08, 2008

  • 1 Answer

SOURCE: samsung tv turning off by itself

I had a similar problem where my 61" Samsung DLP was turning itself off very frequently I had resolved to try replacing the bulb. I called a local TV repair place to see if they had my buld in stock. The guy I spoke to actually told me how to fix my problem! There is a little blue switch behind the bulb access door. The inside of the door has a little piece that presses the switch down. The switch is supposed to work correctly weather the switch is in the up or down position but samsung forgot to take expansion from heat into account. If the switch is held in the upper position by the door and the plastic expands to a certain point, it triggers the set to shut off. This does not occur of the switch is held in the lower position. What you need to do is take the access door off and put it back on by sliding it into position from above. That will hold the switch in the down position, eliminating the problem. My set has not **** itself off ever since.

Posted on Feb 08, 2009

Big Hev
  • 64 Answers

SOURCE: samsung 42" Plasma -Black vertical line when turned on.

It sounds like an Intergrated Circuit (IC) has fried. Even on a good day, this is not something you can attack at home. As a tech (and as an owner of that model samsung), I'd need a map & tools to know what's going on. Your best bet in this situation is to contact Samsung and let them recommend an authorized service center in your area. Sorry I can't be of more help, but this is a rather serious problem.

Posted on May 25, 2009

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If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
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1 Answer

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Based on your description of the fault on a conventional CRT TV , initial suspect would be a capacitor in the vertical circuitry. There would be a number of capacitors within the vertical area, the probable faulty one would be the biggest of the bunch. It would be relatively close to the vertical IC that is mounted on a heatsink. Incidentally, the technical name of your describe fault is "vertical foldover".

Just a start, do postback how things turned up or should you need additional information. Good luck and Thank you for using FixYa.

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