Discolouration on Samsung TV

Pingu · 28-10-2004, 19:11

I have a 14 month old Samsung 32" (possible 36 - can't remember) TV. I've just re-wired and tidied up all the mess of cables behind, and after watching for a while, there's a slight discolouration in the bottom left corner. It turns yellow greenish, and red purple - I can't see it on all colours.
It's not near any speakers or magnets, other than the inbuilt ones - which should be shielded?

It *could* be a new thing - I haven't watched it too much lately, but I think I'd have spotted it before now if it wasn't.

Any ideas?

StereRowe · 28-10-2004, 19:39

It sounds like the problem you get with a magnetic field nearby. You didn't place it near something magnetic whilst tidying did you?

Anyway, if this is the problem switching it off, leaving for a minute or two & then switching it back on again should cure (de-gauss) it.

StereRowe

Pingu · 28-10-2004, 19:59

Nope - I can't think of anything magnetic it was near.
I've left it off for half an hour, and it seems the same.

alexj2002 · 01-11-2004, 22:12

Got the same problem here with my Sanyo 28" TV. It is especially noticable when watching Freeview when the Pace Interactive Loading... (blue screen) comes up. It's purple and is near the centre (just left of) the screen. The off and on cure's it but it's very strange.

Pingu · 01-11-2004, 22:17

Now this is strange - the problem was still the same last night.
I got Sky+ installed today, and suddenly it's vanished. And it was happening on all inputs - DVD and VCR.

GaryB · 01-11-2004, 22:33

To fully degauss a TV you need to leave it switched off for longer than a few minutes. Around 15-20 minutes will usually do but overnight is best. You should unplug it at the mains, not just switch to standby as some sets don't fire the degauss coils when switching on from standby.

Just turning a TV in a different direction can be enough to cause purity problems because of the earth's magnetic field. It doesn't always need an external cause.

Pingu · 01-11-2004, 22:41

Quote:

Originally Posted by GaryB

To fully degauss a TV you need to leave it switched off for longer than a few minutes. Around 15-20 minutes will usually do but overnight is best. You should unplug it at the mains, not just switch to standby as some sets don't fire the degauss coils when switching on from standby.

Just turning a TV in a different direction can be enough to cause purity problems because of the earth's magnetic field. It doesn't always need an external cause.

Well earlier in the week I'd tried leaving it switched off at the panel overnight, which didn't make any difference. Although it was switched off at the mains for around half an hour for Sky - could that be it?

28-10-2004, 19:11	#1
Pingu Forum Member Join Date: Jan 2004 Location: Cornwall Posts: 10,529	Discolouration on Samsung TV I have a 14 month old Samsung 32" (possible 36 - can't remember) TV. I've just re-wired and tidied up all the mess of cables behind, and after watching for a while, there's a slight discolouration in the bottom left corner. It turns yellow greenish, and red purple - I can't see it on all colours. It's not near any speakers or magnets, other than the inbuilt ones - which should be shielded? It could be a new thing - I haven't watched it too much lately, but I think I'd have spotted it before now if it wasn't. Any ideas?

28-10-2004, 19:39	#2
StereRowe Forum Member Join Date: Jan 2004 Location: Leicester Posts: 1,273	It sounds like the problem you get with a magnetic field nearby. You didn't place it near something magnetic whilst tidying did you? Anyway, if this is the problem switching it off, leaving for a minute or two & then switching it back on again should cure (de-gauss) it. StereRowe

28-10-2004, 19:59	#3
Pingu Forum Member Join Date: Jan 2004 Location: Cornwall Posts: 10,529	Nope - I can't think of anything magnetic it was near. I've left it off for half an hour, and it seems the same.

01-11-2004, 22:12	#4
alexj2002 Forum Member Join Date: Dec 2003 Posts: 3,844	Got the same problem here with my Sanyo 28" TV. It is especially noticable when watching Freeview when the Pace Interactive Loading... (blue screen) comes up. It's purple and is near the centre (just left of) the screen. The off and on cure's it but it's very strange.

01-11-2004, 22:17	#5
Pingu Forum Member Join Date: Jan 2004 Location: Cornwall Posts: 10,529	Now this is strange - the problem was still the same last night. I got Sky+ installed today, and suddenly it's vanished. And it was happening on all inputs - DVD and VCR.

01-11-2004, 22:33	#6
GaryB Forum Member Join Date: Jun 2002 Location: St Albans Posts: 4,088	To fully degauss a TV you need to leave it switched off for longer than a few minutes. Around 15-20 minutes will usually do but overnight is best. You should unplug it at the mains, not just switch to standby as some sets don't fire the degauss coils when switching on from standby. Just turning a TV in a different direction can be enough to cause purity problems because of the earth's magnetic field. It doesn't always need an external cause.

01-11-2004, 22:41	#7
Pingu Forum Member Join Date: Jan 2004 Location: Cornwall Posts: 10,529	Quote: Originally Posted by GaryB To fully degauss a TV you need to leave it switched off for longer than a few minutes. Around 15-20 minutes will usually do but overnight is best. You should unplug it at the mains, not just switch to standby as some sets don't fire the degauss coils when switching on from standby. Just turning a TV in a different direction can be enough to cause purity problems because of the earth's magnetic field. It doesn't always need an external cause. Well earlier in the week I'd tried leaving it switched off at the panel overnight, which didn't make any difference. Although it was switched off at the mains for around half an hour for Sky - could that be it?

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Discolouration on Samsung TV