Question about Panasonic PT-47WX49 47" Rear Projection Television

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Panasonic PT47WX49E blue convergence

1> I'm in urgent need of service manual for 5 year old PT47WX49E, Which is giving blue convergence problem. I would greatly appreciate if you could email me service manual for it @

2>Also would you know; how to get into "service man mode" for this type of TV ?

3> I have a single chipset of STK392-110 convergence correction IC. I'm little rough on soldering (especially undoldering), can someone point me to a useful link.
Thanks in advance !!

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Re: Panasonic PT47WX49E blue convergence - Panasonic PT-47WX49 47" Rear Projection Television Projection Televisions


Posted on Sep 24, 2008

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Re: Panasonic PT47WX49E blue convergence

I would like to thank everyone for their posts as it helped fix my blue convergence problem om my six year old PT47WX49E.

Even though replacing the STK392-110 chips resulted in a fix, I don't think either of the chips were bad.

While cutting out the old chips, I discovered five out of six of the middle pins were never soldered! Unfortunately one chip was already replaced and I was half way through removing the second.

When you have a convergence problem, take a close look at the pin connections on the back side of the circuit board. Use a magnifying glass if you must (use one even after soldering to inspect your work).

Hope this helps save someone a few hour work.

Posted on Apr 14, 2008

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Re: Panasonic PT47WX49E blue convergence

Me too! everything fixed now how do you exit chk mode??

Posted on Feb 20, 2008

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Re: Panasonic PT47WX49E blue convergence

How do you get out of Service Mode if you entered into it but didn't make any changes, just used the power button of remote to scroll through the 6 menu choices and returned to the CKOFC09 title on the top of the screen? Please help!

Posted on Feb 08, 2008

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Re: Panasonic PT47WX49E blue convergence

Here is a link where you should be able to obtain a service manual for your set.

To answer your second question. You have to be careful. Make sure you write down all current settings so you dont mess the Television set up worse. The code is the following.
Accessing the Service Menu w/ Remote:

  • in the setup icon, set anntenna to cable
  • in timer icon, set sleep to 30
  • exit menus & tune to ch. 124
  • adjust volume to -0-
  • press volume down on the set panel & red "CHK" appears onscreen
  • use tv/video button to change video inputs
  • use POWER button on remote to toggle menus
  • navigate service menu with up & down, L&R and action button
  • images are tall & skinny. you must adjust the vertical size & position in the NTSC mode, as these are global.
  • Then set the horizontal size & position for each mode(NTSC, 525p & HDTV).

    TIP: Use a dvd that has an aspect ratio of 1.85:1 (I used Starship Troopers) and make it just fit. Don't squeeze too much vertical as the AA9a60 may have some tearing on the top of the picture....this means you will have to cheat and increase horizontal size, cropping some info off the sides.
  • Try using ch.199 & the HBO logo to adjust...the "O" in HBO should be perfectly round (HTPC owners can use VE DVD and the ANAMORPHIC test pattern: title 20 chapter 5 I think). Now you will find your geometry is bowed & convergence is out of whack.
  • First do a STatic adjustment, then do a DYNamic adjustment.
Navigating the Dynamic Convergence Menu
  • cursor buttons- moves cursor postion up& down, L&R
  • #1 button-cycles thru each color gun & combos
  • #2 button-cycles test patterns (normal & dense)
  • #5 button-shows program material in background
  • #7 button-save this often as the set sometimes shuts down in the middle of your work!
  • mute button: cursor data..push to adjust current position.
  • swap button- confirm
  • power-exit
For your final question You should have( 2) STK392-110 convergence ICs in that model. Thats probaly your problem. I would recomend changing them out before adjusting any setting via the service mode. Thes ICs are available from for 5.99 each. Hope this helps let me know if I can be of any further help.

Posted on Jan 04, 2008

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It's a convergence issue. Go into the main TV menu under video settings and look for convergence. If it has an auto convergence select that and wait a minute the TV will adjust itself and give you a clear picture.
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