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October 27, 2007 07:19 PM

Categories: Televisions and Projectors

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Joined: 10/07/2007

My neighbor gave me a Philips rear projection TV. It has a convergence problem. If you go to the convergence screen you can adjust the red and blue, but no option to adjust the green. If I cover the green crt, the screen looks good other then the colors. Uncover the green crt and the red and blue stay the same, but the green won't match up with the other colors. Green bows down at the top middle and up at the bottom middle.I have an Idea what it is, but I would like a confirmation before I order parts! IC-STK392-120    Thanks...Rick1590

 Kinda like this!




Discussion:    Add a Comment | Comments 51-75 of 93 | Latest Comment | « Previous 1 2 3 4 Next »

January 8, 2009 7:48 PM

mr.g said:  I just recently fixed my convergence problem and all colors line up, but now the picture is fuzzy. Looks like its out of focus a bit. Anyone know how to focus this tv. Is there a certain voltage to set each tube at? I am trying to do this myself if it is all possible.  I am working on a Philips 60PP935217 TV.    Mr.G    
I am replying to you with a question since you just fixed you convergence problems. I own the exact Phillips you have and I am replacing the stk392-120 ic's. I was told that you should also replace the (two) resistors that are part of the convergence as well. They are 6.8 ohms and are 1 watt. Do you know what numbers on the circuit board is the two resistors that need to be replaced? I think 3151 and 3152? Just a guess? Do you remember? I own a 60pp93-5217 Phillips hdtv. I beleive it is the same one as yours. Thanks,  Gary

January 8, 2009 7:56 PM

in the service manual it explains how to do electrical focus and static focus

"Those who do not know their opponent's arguments, do not completely understand their own".**For complete TV repair kits including parts goto www.TvRepairKits.com

January 8, 2009 7:57 PM updated: January 8, 2009 8:02 PM

You may want to consult a technician before doing so.

January 10, 2009 2:22 AM

all the 6.8 oms resistors should be replaced , can you adjust all of the convergence settings with the remote ? red-blue-multi-point ? if all where take-off upper cover go into converge settings adjust cross hairs off abit if there fuzzy there,s a black box attached to crt bracket /top three adjustment screws are for color / bottom are for focus , adjust red so the cross-hair is crisp then go to blue convergence do the same, the black box is marked r-b-g i did it this way didn,t have someone to watch front of the tv seemed to worked for me, make sure you can do all the convergence first if the red&blue multi-point wont adjust you,ll have to change the other 10 6.8 oms resistors first there numbered 3149 thu 3160 then do the focus adjustment .

January 10, 2009 10:47 AM

Thank you. I just thought that there were 2 main resistors that had to be changed when changing the ic's. for convergence problems. Gary

January 23, 2009 10:49 PM

I finally fixed the whole Multipoint problem, I opened the back up and looked at all of the lenses. Seem to be find until i spotted some leaking.. Then i found that the rubber washers wasn't put on right. The guy that fixed out tv last time put it on wrong.  So I added some of that liquid, and fixed the washers. worked fine until few months. I called the repair man and i had same problems.. Multipoint, darkness and so on and on. Apperently the fluid i put in was a different mixture and it created bubles. I cleaned it out and I filled it up with Baby oil. Baby oil can be used too u know.

Thankx for the help ;)

January 24, 2009 9:05 PM

I have the same problem problem. How do get into the service menu to adjust the green?

January 24, 2009 9:09 PM

How do I get to the service menu to adjust the green? Thanks!!!!

January 25, 2009 12:29 PM

There is a square box in the back of the set. It has 6 adjustable screws for settings. There are three for focus and three for color. The center screw for color is the green.

January 25, 2009 2:39 PM

it is all in the free service manual available here in techlore's tecnician's corner

"Those who do not know their opponent's arguments, do not completely understand their own".**For complete TV repair kits including parts goto www.TvRepairKits.com

January 26, 2009 1:47 PM

1) Buy only Sanyo brand chips from B&D ( www.bdent.com) , Acme (www.acme-sales.net) , or Tv Repair Kits (www.TvRepairKits.com )

2) Buy the exact same chip that was in your set. Magnavox sets typicaly have STK329-110 or STK392-120. Don't substitue, upgrade, etc the chips no matter what you read. If you put a different chip in the set it will most likely smoke the resistors.

3) Replace all 12 of the convergence resistors. Every day a dozen or more people complain that their set is still broken after replacing the convergence chips. The number one reason is that they did not replace the resistors. Replace all 12 even if they don't look burnt. Testing with a meter is not reliable because the resistors often fail once under load.

4) Check/Double-Check your soldering. Make sure its clean and does not have any bridged connections.

If you do the above your set will be fixed.

Actually this does not work for my problem, it didn't change a thing and I do not advise doing so, when it goes bad throw it away, they are all junk anyway.

View unverified member's comment - posted by mr.v

June 28, 2009 5:41 PM

CRT coolant change and advanced convergence - how to

I documented the procedure I did on a Philips 55" rear projection 55p916

CRT coolant change procedure

basic and advanced convergence

July 6, 2009 10:02 AM

I have a Philips 60pp920217F. Could the problem lie solely on the resistors, or is it more likely that the ICs went bad?

July 6, 2009 10:10 AM

Did you ever get that Philips fixed? If so, what did you end up doing. I have the exact same set with the same problem and am trying to figure on whether I should just try to replace the resistors first before I go changing out the ICs.

July 6, 2009 10:20 AM

you should ALWAYS replace both convergence IC's!!!!
The best advice I can tell you at this point is to go to tvrepairkits.com and order the complete convergence kit for your model of TV set, no need to search and order multiple parts from different sources and pay multiple shipping fees! The kit comes with original Sanyo STK IC'S , not those cheap aftermarket or china made IC'S full pictorial directions, the thermal paste, resistors, the correct Pico fuses, AND free live on-Line tech assistance in case you run into a problem with the repair. They ship out 2 to 3 day Priority mail, the next day in most cases GOOD LUCK!!!
Larry Dillon

"Those who do not know their opponent's arguments, do not completely understand their own".**For complete TV repair kits including parts goto www.TvRepairKits.com

July 6, 2009 6:49 PM

No way. I don't need soldering iron, wick, thermal paste, manual, instructions, etc. I just need the ICs. I found the STK392-180's on ebay brand new with a one year warranty for 8.99. I know how to put them in as I have worked with chips and boards before. I used to create my own amplifiers and equalizers. All together I spent 23 bucks as opposed to 65.00 on tvrepairkits.com. For somebody not experienced enough, I would say it's a good choice. But their is so much info out their that with a little bit of effort their is always a cheaper alternative. I think I am even going to install a 12VDC fan over the heat sinks just for extra precaution.

July 6, 2009 7:43 PM

How do you know they are original IC's and not the cheap or (as they sound like they are) the aftermarket or factory reject ic's? for 10 bucks a pop they cannot be original Sanyo IC'S they just sell for a lot more tan 10 bucks a piece!! and yes you will still need thermal paste for the backs of the new IC'S how do you know you do not need any resistors or pico fuses? Good luck with those IC'S

"Those who do not know their opponent's arguments, do not completely understand their own".**For complete TV repair kits including parts goto www.TvRepairKits.com

July 7, 2009 7:31 AM

I haven't checked the resistors yet. That was part of my previous question. I know I need thermal paste, I meant that I already had it as well as an iron and solder. The ICs come with a one year warranty, so if they crap out, I'll just send them back.

July 7, 2009 7:59 AM

well good luck as your going to nreed it with the aftermarket IC'S and a warranty is great if they are still around after a year! lol

"Those who do not know their opponent's arguments, do not completely understand their own".**For complete TV repair kits including parts goto www.TvRepairKits.com

July 7, 2009 5:21 PM

my tv craped out again after a year ! i bought those cheap ic- chips stk392-180s they arent the correct chips for the philips tv also OEM ic-chips the pt# printing is a lt gray color not bold white printing the aftermarket companys use, also stick with the orginal ic-chip number because so called upgraded ic-chips dont match the 120,s spec,s, replace the 12 omh resistors and ic-chips the same time or you,ll be taking apart again after the repair you.ll have to reset the convergence settings

View unverified member's comment - posted by tony c

View unverified member's comment - posted by medina904

January 24, 2010 3:51 PM

Don't forget to replace your resistors before you put in the new IC's and turn it on. You could screw yourself out of some cash. Not a hard fix. Hardest part is getting the board out of the TV to fix it, really.

View unverified member's comment - posted by medina904

Discussion:    Add a Comment | Back to Top | Comments 51-75 of 93 | Latest Comment | « Previous 1 2 3 4 Next »

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