Hi, my tv has the red, blue, green colours over lapping. and are curved mainly at the top and mainly the red followed by the green then the blue wich is not to bad. I had some one say they think it's the IC- Part no STK 392 could you please 1st tell me what you think it could be and 2nd what would it cost for the part and can you get 1, and finnaly is the tv worth repairing. thanks,Dave.
Hi, my tv has the red, blue, green colours that are over lapping. and are curved through the middle of the screen and mainly the red followed by the green then the blue . could you please 1st tell me what you think it could be and 2nd what would it cost for the part and can you get 1, and finally is the tv worth repairing?
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Re: samsung sp42w4hb rear projector tv
Dave,,yes the tv is worth fixing the ic part you need is STK 392-010 and at this site i will give the link to they are 19.99 each you will need 2 if you get them at the link I posted you will also get free online tech support plus installation instructions with pictures http://servicemanuals.vstore.ca/
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this is called convergence.
the set should normally have a function in the menu to adjust/reset this.
it sound like either the mirror in the tv is warped or the green lamp is out of alignment.
if the convergence in the menu doent work then its a service job.
With most rear projections there is usually an alignment to do with the set up with your TV. This is so the red, blue and green projectors align together to give the correct colouring. This sounds to me what may be causing the outlining of the blue. This can also make it seem off colour. Look in the set up menu of the tv and see if you can find this alignment feature. Usually a cross will appear and you move a blue, red, and green cross with the arrows on your remote to align over the original white one.
If this does not work, it may also mean that one of your projectors, that is the red, blue or green one may be failing causing the off colouring. Hopefully this alignment may fix it for you.
If your picures are all purple it means that the green colour is missing. TV colour is made up by mixing Red, Green & Blue. Removing Green leaving Red & Blue makes purple. Study the green colour circuit for a fault and confirm that the green gun inside the tube is working.
Hi luke I am in the uk and not familiar with this set is it a three tubed crt television or an lcd projector type .. either way what you are descibing is convergence ( three primary colour guns all pointing at the same spot in a nutshell ) in the case of a crt projection tv three tubes one red one green one blue .. there should be a convergence pattern in the menu to re set the convergence via the remote check the manual . If it isn't adjustable you may have a scan coil fault or a tube ie : green with low emission check the green colour gun transistor and associated circuit for leaky caps resistors that have changed value or transistor leakage .. and don't forget the ever popular dry joints on the scan coil plugs .. hope this helps Vortash
I believe you have convergence problem on your rear projector TV. It require to replace may be 2 IC output convergence or the convergence drive, after replace those component you need to readjust convergence which mean you move the RED GREEN BLUE to be 1 on top each other you must have the remote control and service manual to get into the service mode, if you thing you can get those part in your country the service manual I may help you with that, ask your husband if he like to challenge it. I hope that is give you some ideas
HELLO. IT SOUND'S LIKE YOUR PROBLEM IS IN YOUR CONVERGCE BOARD.!!! YOU MAY HAVE TO REPLACE YOUR (IC chip's) on the board .!!! they are what control the color for your convergence.!!! set up .!!! that make your (CRT GUN'S) BLUE & RED LINE UP WITH YOUR GREEN (CTR GUN) TO MAKE YOUR PICTURE LINE UP RIGHT.!!! HOPE THIS HELP'S YOU .!!! "GOOD LUCK"