Well there seem to be a lot of people recently with the same problem as mine so I've got an idea as to what it is.
I've done the "POWER/ACTION self-check reset" the unplugging and found the tech menu (which was impossible to read on the screen so couldn't do anything with it). The self check tells me all systems are OK.
The problem is with the green when trying to set the convergence using Convergence 1 the horizontal line in the "big green cross" is high and can be moved but not to where it should be it also is a bit wavy, the vertical line is a bit distorted at the top and progresses to not even making it to the bottom of the screen. Moving on to the next screen (lining up red, blue, green in the middle of the screen) the green cross is high to the point where I can line up red and blue and the very top of them is only the bottom of the green horizontal line. Convergence 2 is fairly impossible to deal with maybe getting one cross to line up if any. Needless to say the picture has everything with a headache inducing "green ghost" effect. This would lead me to believe I need to replace my IC's. But I also have an "hourglass effect" going on with the green. The bottom of the screen when watching something has a curved band of green lines above this is where the "ghosting" comes in below it things are clear and oviously just the reds and blues. The top of the screen has a bit of this but it's not as pronounced. I saw this problem elsewhere up here and the suggestion was the digital convergence box.
Don't know which one I should look into first so any help would be appreciated (and yes I'd love to have the tech manual emailed to me!!). Also would appreciate the best place to look into getting the parts needed to fix this up. Thank You Very much!!
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Re: PT 47 convergence IC's? box? both?
Always suspect the IC's first, digital convergence prblems are actually pretty rare IC's go everyday. I'd check partsore .com
Generics usually work fine, they are probably STK392-110's but check to make sure.
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yes and also possibly the low ohm resistors. You can get the PT53WX53 convergence kit which fits your model from www.tvrepairworld.com which has the 2 ICs and associated resistors plus the CD with repair instructions.
If the red power LED is blinking 3 times--it is most likely a shorted convergence IC---the only way you can be sure is to remove the light box--I can tell you how by email--and unsolder the two STK-392-110 ic chips----they are on two heat sinks made of aluminum next to each other; if you open the back cover and find them you will see about a dozen blue(light blue) resistors marked 2.2 ohm----if any of those are some what white in the middle(discolored) they are gone and the set will never adjust until you replace them and the two convergence IC chips---What I usually do in this case is remove the light box and unsolder both IC chips and plug it in and turn it on---if the set now comes on and stays on--I replace the IC chips and adjust the set---I have done hundreds of these sets---3 blinks is almost always a bad convergence IC--if this was helpful give me a vote---AND IF YOU NEED DIRECT ASSISTANCE contact me at:
I would guess that the IC has failed again. Can you post the number marked on the IC here? If you can solder, you should be able to repair this yourself. If you can get the part number, I may be able to provide a different replacement that will last longer.
Yes it is that set uses the same IC STK392-110 You can get the new ICs at this link and they will provide free installation instructions with pictures as well as free on line tech support instant messaging while you do the repair. heres the link. http://servicemanuals.vstore.ca/