Question about Philips Magnavox 51MP392H Rear Projection Television
Recently I moved my Magnavox 51mp392h17 HD projection tv and now when I turn it on, the red and green colars are offset so for instance the screen shows channel 3. Its showing it twice one in green and one in red, one's slightly over labbing the other alittle higher. How can I adjust or fix that?
I had the same problem where all of a sudden it started bowing on top and bottom and the colors were bad. I read on here and other sites about the 2 convergance chips so I figured why not try as the tv was going to get thrown away because I could not find anyone that would touch it. Well I ordered 2 stk392-120's (I know others are saying use the 150's or 180's but I just wanted to put the same ones that were in there) I ordered them from electronix.com for 9.99 each plus 6.60 for shipping they took 3 days to get here and I installed them tonight and it worked great. The whole thing took only about 2 hours from start to finish. Here's a couple of tips....the chips are on the far left when looking at the tv from the back, make sure you mark with a marker where the wires go that you have to unplug as there are about 10 of them, each chip has 19 pins that you will have to soder make sure you have a soder ****** to get all the old soder up as you are heating them up, after you are done puting it back together leave the back cover off and turn it on, then go into your menu and go to pictureand go to manual converge and go to undo multpoint and restore factory as this will reset it all. Then if your color is still a little off as mine was there are 6 knobs in the back of the tv by the chips you were working on, find a channel with a lot of colors and try adjusting the top 3 a little at a time till you get the right color that you like. This should do it. It took 26 bucks and 2 hours for me to fix a tv I was ready to replace, thank god for the internet to be able to look stuff like this up. Good luck!
Posted on May 09, 2008
I just had the repair man out $400 he gave me the bad chips that are causing the problem and i looked up the part its only 7.99 it took him 1hr to do he also replaced some resistors but after googling the part number found some people giving out the resistors that need to be replaced. now i didnt see him replace so i dont know how hard it is to replace on your own but could be worth a shot had i known about the parts i needed i would have done it myself. Part No. STK392-150 He said STK392-180 would work too.
Posted on Aug 18, 2007
If the colors are only off by a little bit then you can go into the menu and navigate to the convergence page and realign the colors by following the instructions. Having the owner's manual is great for this. If the colors are suddenly way off, especially around the edges, then something has failed in the convergence circuits and should be repaired by an experienced tech. But from what you described, I believe a convergence touch-up is all you need.
Posted on Aug 05, 2007
You have a failure in the convergence circuits. I would seek a qualified technician
to do the work. One or both of the flat pack IC's Stk 392-*** are bad along with
some support components. If you are not careful You will ruin your tv trying to
fix it. Technicians are getting hard to find for a reason. Some of us are still
honest and need to earn a living. I just fixed one--Total bill $217. I don't know
anyone who can do the job in an hour. That was a trip and 3 hours working on
the set. Use this figure as a ballpark. Some set's can be bears to fix and may
Posted on Nov 28, 2007
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