Question about Samsung TXJ2879 28" TV
Hi model no is CW-683CNG I have had the set for about four years and had no trouble whatsoever. However about three weeks ago the screen picture was not so clear and it had a red haze to it. It soon rectified itself but now is a constant fixture. Is it worth repairing or is it time to replace it? Many thanks Nik (vintage)
Sorry silly girl seen this a hundred times!! The crt socket on the set needs to be carefully taken off and cleaned with wd-40 or tuner wash. its an intermittant connection on the screen contacts and the contacts that bias the grids.. It can be a green haze a blue haze or a red haze. Very common on 3 to 5 year old samsung tvs. Good Luck
Posted on May 09, 2006
Were there any changes lately in the proximity of the set? specifically any electric devices moved? speakers? the symptoms - red haze appearing, then fixing itself- sounds like a degaussing problem, usually caused by an external magnetic field. To help the TV degauss itself you should turn it off(not to stand by) then on a few times. let it rest over night(plug it out). If theres any change, then you're probably seeing degaussing effects. If it helped but isn't perfect, you could get a tech to come over and work on it for around 50$. Good luck
Posted on May 09, 2006
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Posted on Jan 02, 2017
SOURCE: Samsung DynaFlat TX-P2775H 27
Do you get any indication of power to the unit? Mine didn't.. the light next to the power button didn't come on. Turned out it was just a fuse inside the unit. So, take it in for repair and hopefully its a simple fix.
Posted on Dec 13, 2007
SOURCE: Samsung TXG2547
The picture on your TV is created by an electron gun firing at the phosphor coating on the screen. The position of the guns beam is controlled by magnetic coils, which are driven by scan circuitry.
Normally, the gun scans left to right, top to bottom to create each single frame of the moving image.
From what you are saying, it sounds like there is a fault in the vertical control system somewhere - basically the gun is going left to right but not up and down, resulting in your picture being squashing down to one row high!
It is unlikely to be a fault with the magnetic coils. My guess would be a faulty resistor that is breaking down (and changing its value) as it gets hot.
It should be a relatively easy to fix, but given the age/value of the TV it might be worth considering a replacement.
Posted on Feb 26, 2008
I have over 10 years experience in electronic tech support.
I know this isn't what you want to hear, but the problem you've described can't be fixed with troubleshooting. Your TV will have to be repaired. There is a part that has developed a defect and needs to be replaced. The question will be, is the part still available? Before paying a TV repair person $75+ to diagnose the problem, ask yourself if you're willing to pay $150 minimum to fix this particular set. Also keep in mind that most TVs that old have a very limited number of replacement parts still available. Normally it will cost at least $75 to have the set looked at by a repair shop (diagnostics). If the part needed to complete the repair isn't available, you won't get that money back.
I hope I've provided you useful assistance and that this information allows you to make an informed decision as to how to proceed from here.
Please let me know if I can be of further assistance.
Posted on Jun 18, 2009
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