Question about Philips 51PW9303 51" Rear Projection HDTV-Ready Television

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G2 alignments? Recieved a Philips 51 inch 51PW9303 for free from friend - had convergence problem - fixed (replaced chips) - also have determined that need replace fluid in Blue, Green CRT's (blue halo's). So no worries, I just got a TV for 50 bucks right? Wrong - my "friend" had messed with the RGB pots in the rear interior of the tv prior to giving it to me - I know a calibration needs to be done, have researched and found software and tools ...but even then dont understand how to fix these pots. The color/grey scale alignment never talks about adjusting these pots - I know I can do this, I'm a Navy Electronic Tech ...just need the procedures/values ect ...what do I do to get these CRT's tweaked back to factory settings?

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Hello YankeeTwidgt,

Here we go you will need a schematic diagram (You may already have one but I thought I would mention it ), an oscilloscope, a TV signal generator (NTSC color bar, RGB purity screens, and pattern screen), and a voltmeter (I would prefer you have a VTVM, but a digital meter with high impedance (>=10M) will be ok).

First turn all of the color and tint controls completely down (This includes the main color and tint and the pre-amp color controls if you have access to them).

Then turn the RGB pots fully counterclockwise.

Once this is done connect the signal generator set to channel 3, and set to the specifications on the schematic, use the color bars, what you should see at this point are bars of various shades of gray.

Then turn the generator to the purity setting and set the pattern to red.

Once this is done your screen should be dark or dark red, gradually adjust the R pot until the screen is pure red and the voltages, and signals match what is seen in the schematic (mark this point on the pot and the return the pot to fully counterclockwise).

Do the same for the Blue and Green Controls (Blue first and then Green).

Once all of the pots are marked and turned to counterclockwise, set the pattern to gray purity, and turn the pots back up to their marked positions, the screen should be gray. switch to color bars and the screen should have the proper colors.

This is a course adjustment, and you will have to do a fine adjustment using the schematic, and the test tools, but this will put you way into the ball park.

The reason these pots are not talked about in gray scale adjustments is because they usually don't have to be touched. That's why it is important to get them back to specification using the voltmeter and oscilloscope to set the signals up properly.


I wish you success,

Shuttle83


Posted on Jul 27, 2008

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I need help my phillips model 46pp930217f hdtv . i can't get the colors to aline what part do i need to replace help plz and i need the modle number to plz my email is russianmexican@live.ca


The tv have a problems known as a convergence problems,it dead.Tv have colors lines R,G,B are mis alignments,have colors shadows pictures or 3D picture look alike?The tv convergence board is dead,the tv convergence board,must be requiring to replaced 2 STK convergence ICS and some or all of it resistors too.U have all the tools and can do ICS soldering and electronic componnents soldering.Tries websites like Tvrepairworld.com,Tvreparkits.com to buy a Convergence kit to do the repair ur self.Or the shop,will cost u like $300-350 for parts and labors.

Dec 15, 2010 | Philips 51PW9303 51" Rear Projection...

1 Answer

Color won't converge


This sounds like convergence output IC problem. convergence board would have to be removed - remove and replace 2 STK IC's and check the surrounding resistors. Shops usually $200-$400 Be sure to vote/rate me if this helped Thanks!
See link for more detail
http://www.ehow.com/how_4575598_yourself-projection-tv-repair-convergence.html

Dec 27, 2009 | Philips 51PW9303 51" Rear Projection...

3 Answers

Convergence will not line up after replacing ic & resistors


Did you replace the resistors when you replaced the convgence chips? If one of them was bad you would still have the problem.

Here are some of the most common symptoms and example photos.

  • 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.
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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.


2c07611.pngSolution


You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick email and they will put one together for you. Their kits includes photo instruction guides, original Sanyo STK chips, convergence resistors, pico fuses, etc.

Jan 03, 2009 | Philips 51PW9303 51" Rear Projection...

1 Answer

I have a 51 inch phillips seeing almost a 3 d effect


Your convergence chips are toast. You will need to replace them along with the convergence resistors. 

Here are some of the common symptoms when your convergence chips fail. 


Screen looks 3D
One or more colors can't be adjusted when when using the convergence menu. 
Screen is bowed, wavy, etc but stationary.

Solution: 

You can get a convergence kit with photo instructions from www.TvRepairKits.com

Dec 17, 2008 | Philips 51PW9303 51" Rear Projection...

1 Answer

Green is bowing up & down. Phillips 51pw9309/17f


Your convergence chips are toast. You will need to replace them along with the convergence resistors. 
Here are some of the common symptoms when your convergence chips fail. 

Screen looks 3D
One or more colors can't be adjusted when when using the convergence menu. 
Screen is bowed, wavy, etc but stationary.
Solution: 
You can get a convergence kit with photo instructions from www.TvRepairKits.com

Nov 18, 2008 | Philips 51PW9303 51" Rear Projection...

1 Answer

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Check the site www.TvRepairKits.com. They have put together a kit for your exact model. The kit includes a photo instruction guide, original Sanyo STK chips, convergence resistors, etc. Everything you need to fix it yourself. 

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2 Answers

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Replace the defective Convergence
Amps (7044 and 7045) on Small Signal Module.
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Aug 12, 2008 | Philips 51PW9303 51" Rear Projection...

2 Answers

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You need to replace both convergence ICs they are STK392-120 and you will also need 4 of the 6.8 ohm 1watt resistors. You can get replacement ICs and resistors at the following link and they provide free instalation instructions with pictures.
http://servicemanuals.vstore.ca/

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Have you tried just replacing the STKs? This set uses two STK392-120s I think.
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1 Answer

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The convergence board is bad. If the convergence board were still good, then the convergence menu would allow you to adjust the crosshairs.

Mar 03, 2008 | Philips 51PW9303 51" Rear Projection...

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