Question about Philips 55PP9401 55" Rear Projection Television

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55pp9401 convergance replaced conv. amps now set needs alignment need assistance

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Re: 55pp9401 convergance

Did you activate Intellisense ? What happens ? Was there a
difference in performance after IC's replaced ? What Exact
part numbers were used ? Did you check for burnt resistors
near IC's ? If you see any bad...What are the part locations?
I await your comments..............T.

Posted on Dec 18, 2007

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We no longer have the remote for model 55pp9401 and we have a convergence problem what can we do

Here's the Philips support URL for your TV:

PDF download of your Owners' manual:

Here's what Philips FAQ says about your convergence procedure:
Question How do I adjust convergence (align colors)? Answer Note: For best results, the Projection TV needs to be turned on for 15 minutes or longer before adjusting the picture tubes (convergence).

Press the INTELLISENSE button on the remote (under the flap). During the convergence process DO NOT press the INTELLISENSE button again and DO NOT move the Projection TV.

So, I think you're going to need to order a replacement remote.
search "replacement remote" at

May 13, 2011 | Philips 55PP9401 55" Rear Projection...

1 Answer

Intellisense button

If the model number on the set is 55PP9401/55 you have an interesting set----this model says Philips but was made by Hitachi---they made them for Philips for one year while Philips was gearing up to produce their own sets---very good set and is better than the Philips sets that came after it.
It uses (if it is this model) two STK-392-110 CONVERGENCE IC's----both need to be replaced and the set adjusted---no need for an original remote---with the set engaged in the convergence adjustment mode( there is a micro switch on the front of the main circuit board) A HITACHI REMOTE CAN THEN BE USED TO ADJUST THE CONVERGENCE. Hope this was helpful.

Aug 11, 2009 | Philips 55PP9401 55" Rear Projection...

1 Answer

Picture on tv has blue and red going through the top and can people look like they had 2 heads on tv toshiba 42pw23p

try to align it by going into the convergence setting in your on screen menu, some proj tv have a multipoint conv alignment, this might do it for you, if it doe not then therre might be a problem with the red and blue convergence amps and on this model the digital conv module(dcm) can also be at fault.

Aug 05, 2009 | Projection Televisions

1 Answer

Lost remote / convergance problem

u can not set the convergence without the remote control just look on the web they are between 30 and 60.00 dollars

Oct 07, 2008 | Philips 55PP9401 55" Rear Projection...

1 Answer

Conv problems with no pic has sound

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projeciton sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....
  • 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.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some photos of convergence problems.



Here is a quick test....

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

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.

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

Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a fix


You will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you are handy and can follow directions. You can get complete repair kits from or click here. They have put together DIY repair kits that include the OEM parts and step by step photo instructions for each repair. If you are not handy or can't follow directions we would suggest calling a shop.

Apr 30, 2008 | Mitsubishi WS-55809 55" Rear Projection...

1 Answer

55pp9401 convergence problem

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

Feb 25, 2008 | Philips 55PP9401 55" Rear Projection...

1 Answer

Philips 55PP9401 Green Out?

This is a PP15 Philips Chassis Designation.
It's based on the DP15 Hitachi Chassis w/ Different Micro.
Hitachi DP15 Model: 53UDX10B
It's most likely that the convergence amps have failed and if you have little experience in electronics I'd STRONGLY suggest you take this one to the shop.
This set takes two STK392-110 Ics and it's recommended you upgrade those to the STK392-150s for greater reliability.
They make a nice kit complete with all conv. Ic's and all (6) resistors and complete instructions. Tritronics carries them part # X480295 (Jt22053 Repair Kit).

Nov 24, 2007 | Philips 55PP9401 55" Rear Projection...

1 Answer

Toshiba 42H82 convergence problem

Replace STK convergence IC's w/OEM or better parts.Senior tech soldering ability needed. Ex==Steel jumper wires feeding b+ to conv. IC's need resolder to prevent call-back.Also, best re-alignment done in service mode==consult service literature.

Sep 19, 2007 | Toshiba 42H83 42" Rear Projection...

1 Answer

Convergence Board

You just need to change the two convergence IC's part# STK392-110 and look for any burnt/discolored resistors nearby.

Sep 12, 2007 | Philips 55PP9401 55" Rear Projection...

2 Answers

Phillips 55PP9401 Convergence Problem

STK392-110 convergence IC's upgrade to STK394-160.....
I use Hitachi brand part # CZ 01341 ... change both.......
Check for dis-colored resistor (s) = replace with exact value...
Please respond............T.

Aug 12, 2007 | Philips 55PP9401 55" Rear Projection...

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