Question about Philips 55PP9401 55" Rear Projection Television

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55pp9401 convergence problem

I have this model with convergence problem. convergence Ics together with supply resistors were found defective and after replacing those items, convergence still exist and allignment thru remote control is impossible. Any suggestion is highly appreciated.

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Try aligning them using the yoke control rings.
sometimes the alignment is so far out that you have to adjust the magnet rings instead.

Posted on Feb 25, 2008

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Posted on Jan 02, 2017

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I have a hitachi 53fdx01b projection tv. The colors are shifted and droop downward. the cross hairs don't move when I try the convergence adjustment. Will new chips fix the problem?


If trying to adjust the convergence doesn't work, then is the convergence ICs that are defective. I would suggest to inspect all the solder joints on the ICs and resistors for possible cold solder joints. If everything looks good then replace both ICs and also measure resistors that are connected to the convergence ICs.
Let me know if you require further assistance.

Sep 13, 2015 | Hitachi Televison & Video

2 Answers

When adjusting the convergence, ended up with a concave screen, then it smoked. Is this a power supply, or worse? Is there any advice that you could give me on this...


Thats usually indicating the ICs have failed. Usually with that model its best to replace the board rather than try replacing the individual components as ther are several 3.9 ohm resistors that will need to be checked and possibly replaced along with both ICs. www.tvcircuitboards.com should have the replacement board for your model if you need one.

Jul 08, 2011 | Samsung HCL473W 47" Rear Projection...

2 Answers

JVC AV56wp74 convergence. Resistor before ICs?


It's recommended to replace all the defective parts first because if you only replace the defective resistor, it might burnt again if the convergence IC is shorted internally. I would also suggest to measure the other low value resistors with multimeter.

Oct 30, 2009 | JVC AV-56WP74 56" Rear Projection...

2 Answers

Red and green double vision


This is a convergence problem that is either poor solder connections on the convergence ICs or defective ICs. If you can solder and are comfortable working inside the set where there are ptentially dangerous high voltages present even when unplugged, you can fix this yourself.

Please let me know if you wish to attempt the repair and I'll supply additional details and instructions.

Dan

Mar 19, 2009 | Sony KP-EF41 41" Rear Projection...

2 Answers

Sony KP-51WS500 Rear Projection TV colors are distorted.


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.
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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 #1

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 note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.

Mar 05, 2009 | Sony KP-51WS500 51" Rear Projection...

3 Answers

Arched screen


You have a convergence problem. Here are some of the most common symptoms.

Screen looks 3D
One or more colors can't be adjusted when using the convergence menu.
Screen is bowed in but stationary.
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.
>>>Solution<<<<
You need to replace the convergence chips and convergence resistors.
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.

Jan 08, 2009 | Sony KP-51WS510 51" Rear Projection...

2 Answers

Convergence


If you cannot align, the ICs probably need to be replaced. You can check the input on feedback resistors in front of the ICs with an ohm meter. Some resistors may be bad causing your problem. Usually you would need to replace the ICs and bad resistors and do a full re-alignment to fix.

Dec 05, 2008 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Failed resistor


those are the convergence feed resistors. # blinks on a panasonic means convergence IC failure. You will need to replace the two stk392-110 convergence ICs and the six resistors. You can get replacement ICs and resistors at the following link.
http://servicemanuals.vstore.ca/

Sep 06, 2008 | Panasonic PT-53TW53 53" Rear Projection...

1 Answer

Panasonic ICs


On your model its usually will not blow the resistors unless the set has shutdown with 3 blink error. But if your set is still working except with bad convergence you should be ok with just getting new STK392-110 ICs , but change both convergence ICs.

Aug 17, 2008 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

42H83 Convergence


Yes the convergence ICs need to be replaced, however so dont the six 1.8 ohm 1watt resistors as Toshiba recomends replacing those six resistors when the ICs are changed. You can get the 50H71 / 50H82 Convergence repair kit as the 42H83 is identical to the 50H71 series, so the kit will work for your model. Heres the link where you can get the kit.
http://servicemanuals.vstore.ca/

Aug 10, 2008 | Toshiba 42H83 42" Rear Projection...

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