Question about Philips Magnavox 51MP392H Rear Projection Television

2 Answers

Magnavox 51mp392H/17 All the print is doubled and there is a rainbow of green and red at the bottom of the screen. I tried to adjust the convergence manually with no success. I saw in another listing that it could possibly be this part stk392-150 but when I looked it up it was a semiconductor. Could it be a convergence amp. and if so what is the part number.

Posted by birdfood on

  • 11 more comments 
  • colborn1 Nov 28, 2007

    Is it hard to change the convergence on the 51mp392h? What tools will I need? Where can I buy the parts at reasonable priced? Thanks for any help

  • Anonymous Nov 29, 2007

    I have the same problem

  • greg rowan Jan 19, 2008

    I need to find a schematic of the 51mp392h17 I have the part number and I have the code to get in the service mode but I need to know where the convergences are located on the board. Thanks for the help

  • marlin brown Jan 27, 2008

    can i fix this myself if not how much should it cost if i was to take it to a fix it shop

  • marlin brown Jan 27, 2008

    on my tv i see a rainbow of colors at the bottom ot the screeen and like it ispushing the picture in the middle. also i see double on numbers and letters. what is it and can i fix it myself and or if i take it to a fix it shop how much will it cost to repair

  • rwessel Jun 02, 2008

    My screen tends to get green lines across it and an arc of colors at the bottom. Adjusting convergence did nothing. I was told by a local repair shop that it would take $300-$350 to repair, but they didn't tell me what the problem was. Is this something I could fix myself for less?

  • denbid Jun 14, 2008

    Did this happen because of hooking up a nintendo wii system?

  • neecy120 Nov 16, 2008

    color unbalance green and red colors..same problem as has been listed...

  • psmaniac82 Nov 17, 2008

    I had the same problem. When I went to adjust the screeen, it blacked out and makes a chirping noise. No Audio, and No Visual, just chirping? Can someone help me?

  • Anonymous Dec 10, 2008

    green and red on lower section of screen

  • Anonymous Feb 28, 2009

    I have changed the convergence amplifiers but still no better. what else can it be and how can it be checked and or fixed...

    Magnavox rear projection screen TV model #51MP392H/17 has red convergence problem. I can manually move the red convergence left and right but not up and down. I have already installed the new convergence amplifiers #STK392-120 and still not any better. What,where and how do I check for another problem and how do I fix this problem. Thanks for your time

    JASON A.

  • Anonymous May 22, 2009

    where are these parts located so i can replace them

  • greg rowan May 11, 2010

    where are the covergence located



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Do you know where this part is lokated

Posted on Jun 04, 2008

  • kw12 Jun 04, 2008

    where ar these parts lokated



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Yes,semiconductors is the term used to describe transistors,diodes,intergrated circuits(IC's)etc...the correct generic part# for that model is STK392-120 which is an intergrated circuit (IC)which in that TV works as a convergence amplifier.The specific Philips part# is 932212344682. There are two of them you need to change both. Also check the two 6.8 ohm resistors nearby if they are burnt or discolored.

Posted on Sep 16, 2007


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I own a Panasonic HDTV projection monitor PT-47WX42C I am having convergence/warping issues; There is a large green/red curve in the bottom rear of screen about 4 inches tall, and stretching over more...

Replace the convergence ICs they will be big black ICs and will have Part number on them example STK392-110
Mats Electronics has them for 9.95 each you will need 2 .

Just the blue on my rca projection tv is blurred. on the auto convergeance it says it cant read the sensor. on manual the cross hairs for the blue are oversized and blurred. i tryed tuning in the focus but...

Have you try adjusting your focus/screen drive controls to Tube R/G/B you have a focus/screen drive control block to adjust each Tube 3 controls ontop 3under them top ones are for Focus bottom is for screen drive.Red/Green/Blue Tubes.You might need to replace convergence IC, what is your Model number printed on back of TV?

My magnavox 51mp392h has a convergence issue. the

Convergence is dead.Know how to solders? Must replaced the 2 convergence ICS and all it resistors.Tries Tv repair, to buy a convergence kit to repair it ur self.The shop will $300 for the parts and labors.

I have a red and green rainbow double effect on my

No, Ur convergence is dead,require soldering change parts like convergence ICs and resistors.The shop well cost u $300 parts and labors.

Our Philips Model # 51pp9303H/17 TV has alot of green/red which appears to be double screen appearance. When on the guide page for cable it looks like it is double as well. Its like looking at a red and...

Yea its a convergance issue. I'm more familiar with the sony bigscreens. The convergance amplifier number for that one is STK392-120. The schematics show that your tv has two of them.

Go here for a service manual:

You will see a window that says file information, at the bottom you will see something that says multipart 0 1 2 3 4. You need to download all of those files. you will also need WinRAR to unzip them. You can download a free trial of winRAR.

Once you have WinRAR and the files open part1.rar and it will unzip everything into a 1800 page pdf that is the service manual.

If you have a work copier use that to print the manual or use the pdf search function to locate the STK392-120, or 7044 and 7055. The latter two numbers are the numbers philips uses to identify the chips in their schematics.

I know its a lot of info, but I hope it can help.

The screen has a rainbow of red blue and green on bottom

The specs say this is a CRT type projection system, so it could be related to the display or to the TV. Since this has an SD card, it might be good to plug in the memory card with some pictures on it, and see if the problem persists with a source other than the tuner. That might at least narrow down whether you have a display failure/adjustment issue or something else.

Sometimes I get a rainbow on the bottom of the screen.

Your TV most likely has a convergence failure. ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem

  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
Here are some photos of convergence problems.

Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.


You will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

RCA 56 inch hdwidescreen

Did you use the Automatica Convergence to try and straighten it out? If that does not help, you can manually adjust the convergence.


You have a convergence problem. Components are shorted out and must be replaced. Unless you're a technician, there's really nothing you can do at this point.


Blue rainbow on the bottom of screen

You will need to replace or have the convergence IC's replaced. There are two IC's on the printed circuit boards that need swapping out. you should call in a pro to assist you in the=is repair if you have no solid state repair experience. good Luck
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