Question about Philips 55PP9401 55" Rear Projection Television

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Service manual / Info

After repair of set , I need to touch up convergence....another Expert
suggested Force 32 ? Do you know a webite address I can go to get
manual or info ?.........................T.

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Re: Service manual / Info

Terry, old system , can`t get it anymore, had to have a series of discs to make it work, what manual/model, chassis u lookin for ?

Posted on Jan 25, 2008

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Is there a way to manually adjust the convergence on a Hitachi HDTV modol #43FDX15B?

Hi James,

If Auto Focus (Auto Convergence) won't complete the set-up stop trying to adjust it. There is a fault in the convergence circuit!! ICs have to be replaced and maybe some burnt resistors.

If you access the service set-up menu and try to adjust the "defective" circuit the Auto-focus may not work correctly after the IC's, etc are replaced. Experienced technicians know that the service menu allow easy resetting to correct the misalignment, etc. "First Time" technician can be easily misled, waste a lot of effort and never get a correct picture.

If you want to attempt the repair, buy the correct parts from a service guy that does this type of work. I suggest having the repair done by a local competent technician that is experienced with Hitachi Convergence Problems. It is considerably more challenging than changing a fuse.

Our Convergence Gallery shows a variety of Convergence Faults. If you live in Toronto, ON., Calgary, AB., or Vancouver BC. it costs $257 for Hitachi in home convergence repair.

Good luck.


Nov 17, 2015 | Hitachi Projection Televisions

1 Answer

Red color convergence on Toshiba 57H81

Often convergence issues do not require the entire board to be replaced. You can resolve it by replacing the convergence ICs. The part in question is STK392-110. You will need two of them and they cost around 10$ each. But replacing them is a pretty complicated procedure and I would not suggest it to someone without prior experience. A service manual should get you started in the right direction if you are planning to do this yourself.

: Disconnect from the power supply before you start the repair. Also read the legend, the hv circuits are denoted by a special symbol, so you will know what you shouldn't touch.

You may also need to replace the nearby resistors that may have popped the IC in the first place. Read the service manual for further details.

Good luck,

Apr 01, 2009 | Toshiba 57H81 57" Rear Projection...

1 Answer

Convergence Issue on Toshiba TN50X81 - Service Manual & Parts Source?

Replace the convergence IC's - P/N STK192-110 with part STK192-150 or 180. Then you can go back in and make the detailed convergence settings and get your picture back in alignement. Also check the flame-resistant resistors around the ICs to make sure that none of them have opened up.

Jan 11, 2009 | Toshiba TN50X81 50" Rear Projection...

2 Answers

Top left side of picture blur

You may have to clean the crt's and lenses and the mirror. Unit may need total convergence from the service menu. If image is blurred in only one area like the corner I would suggest NOT to adjust the electrical or mechanical focus.

Aug 31, 2008 | RCA D52W20 52" Rear Projection HDTV-Ready...

3 Answers

Two issues

I would suggest to replace the STK ICs first as suggested in your previous post and you might end up fixing both failures.
Let me know if you need further assistance.

Jul 23, 2008 | Toshiba 50H72 50" Rear Projection...

1 Answer

Convergence service mode

I don't know how to deal with the power settings part but the convergence service mode is "Mute, 1, 8, 3, power".

Jan 03, 2008 | Samsung PCN5425R 54" Rear Projection...

1 Answer

Set is still slightly out of convergence after repair

Download manual & get info at

Oct 29, 2007 | Hitachi 43UWX10B 43" Rear Projection...

2 Answers

Phillips 55pp9527/79 convergence

Two things may have happened. First you may just need to degauss the CRTS. Let me explain when you move your TV you often cut across flux lines (magnetic lines of force) these have then tendency to magnetize your screen mask (a metal component in the CRT that slows down electrons) and cause what is sometimes misdiagnosed as a convergence problem. All that has to take place is a once over with a degaussing coil and the problem is fixed. The other thing that could have happened is the your convergence correction amplifiers have gone bad. This will require that you replace both modules (STK392-110). If you have a background in electronics you can perform these tasks, however if you don not have a background in electronics, I would suggest that you contact a qualified TV repair shop to service your TV set.


I hope this helps,

Thank You,


Oct 18, 2007 | Philips Magnavox 9P6034C 60" Rear...

3 Answers

Rca hdlp50w151 screen removal

Remove the 3 screws about 3 inches in on the back side of the speaker cover on each side. pull out and slightly upward on the speaker cover to remove. supsupport the cover if you do not want to disconnect the ground and button control cables. Remove the screws on the top and side rear panel to front frame/screen cover. tilt the screen cover out about 12 in at the top and lift up. Reverse the procedure to reinstall.

Oct 04, 2006 | RCA HDLP50W151 50" Rear Projection HDTV

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