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Main => Monitor/Video Forum => Topic started by: jonas_g on October 01, 2009, 10:55:47 am

Title: Samsung TV shows odd purple colors when turned on it's back
Post by: jonas_g on October 01, 2009, 10:55:47 am: Hello,

I have a Samsung TV installed in my cabinet, I'm working on. Because of the design of my cabinet the television has to rest in an angle. When I do this the screen shows all kinds of strange purple colors , the more I turn my TV the worse it gets. The colors turn out fine when I leave the TV in a upright position.
Guess there's no other way then to search for a new screen for my cabinet ?
Title: Re: Samsung TV shows odd purple colors when turned on it's back
Post by: Kevin Mullins on October 01, 2009, 11:31:03 am: Set the TV at the angle you want it to be in and leave it OFF for awhile.... THEN turn it on and see if it self-degausses.
Title: Re: Samsung TV shows odd purple colors when turned on it's back
Post by: jonas_g on October 01, 2009, 03:16:59 pm: Like one hour ? or a day or ?
Title: Re: Samsung TV shows odd purple colors when turned on it's back
Post by: Kevin Mullins on October 01, 2009, 04:21:24 pm: An hour is more than plenty of time for it to cool off.
Title: Re: Samsung TV shows odd purple colors when turned on it's back
Post by: jonas_g on October 01, 2009, 04:27:34 pm: Then I guess it didn't help. Guess I'm going to look around for an tft screen. I hated configing everything from a TV screen.
Title: Re: Samsung TV shows odd purple colors when turned on it's back
Post by: jonas_g on October 02, 2009, 07:10:32 am: OK I think I found a replacement for my 19,6 inch Samsung Hitron TV.
Would Acer AL1916W 19'' be a good idea ?

(http://www.singaporebrides.com/forumboard/messages/268785/1098130.jpg)
Title: Re: Samsung TV shows odd purple colors when turned on it's back
Post by: Blanka on October 02, 2009, 09:43:17 am: Do you plan to use it vertical or horizontal?
Title: Re: Samsung TV shows odd purple colors when turned on it's back
Post by: jonas_g on October 02, 2009, 09:58:08 am: Only Horizontal.
Title: Re: Samsung TV shows odd purple colors when turned on it's back
Post by: Ginsu Victim on October 02, 2009, 10:37:21 am: I have that Acer for my main PC. It's terrible. You do not want that for your arcade cab.

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=2528157&CatId=170
Title: Re: Samsung TV shows odd purple colors when turned on it's back
Post by: SirPeale on October 02, 2009, 10:40:39 am: Ai...just manually degauss it.
Title: Re: Samsung TV shows odd purple colors when turned on it's back
Post by: jonas_g on October 02, 2009, 11:02:40 am: Quote from: SirPeale on October 02, 2009, 10:40:39 am
Ai...just manually degauss it.

How do you do that ?
Title: Re: Samsung TV shows odd purple colors when turned on it's back
Post by: jonas_g on October 02, 2009, 11:35:38 am: What about a: Samsung SyncMaster 940BW. That should be way better then the Acer?
Title: Re: Samsung TV shows odd purple colors when turned on it's back
Post by: SirPeale on October 02, 2009, 06:05:47 pm: Quote from: jonas_g on October 02, 2009, 11:02:40 am
Quote from: SirPeale on October 02, 2009, 10:40:39 am
Ai...just manually degauss it.

How do you do that ?

You use a manual degausser on it. There are details in the Wiki.
Title: Re: Samsung TV shows odd purple colors when turned on it's back
Post by: crzywolf on October 02, 2009, 06:30:07 pm: Is there any thing in your cab that could be interfering with the TV ? Such as unshielded speakers , electronics or something in your work area. ?
Title: Re: Samsung TV shows odd purple colors when turned on it's back
Post by: jonas_g on October 02, 2009, 06:52:18 pm: Not really.
If I take the TV outside of the cabinet and flip it on it's back it's doing the exact same thing.
Title: Re: Samsung TV shows odd purple colors when turned on it's back
Post by: qrz on October 02, 2009, 08:13:57 pm: AND it will 99.99% of each time tried !

in a crt (cathode ray tube) the electron beam is moved about the screen via electromagnetism ( deflection yoke)
in a colour ctr, there is a very fine mesh ( shadow mask) through which each electron beam must pass.
beam landing refers to the beams striking the proper phosphor dots.
altered beam landing results with incorrect colours.

changing the position of the crt in relation to planetary magnetic field alters beam landing.....
deguassing ( demagnetising ) will restore proper beam landing in almost any orientation... until position changed ;D

this is NOT mystical, magical stuff here .....
electronics is "simply" controlling the motion of electrons from one atomic orbital shell to another .
Title: Re: Samsung TV shows odd purple colors when turned on it's back
Post by: Blanka on October 06, 2009, 03:36:07 am: Did you know that if you put an European TV upside down in Australia you get a good picture, but not if it is straight up! Also because of the reversed Earth magnetic field.