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

5 Answers

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 @ girishsan@hotmail.com.

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 !!
Regards,
GT

Posted by on

  • 5 more comments 
  • girishsan Jan 06, 2008

    Thanks for the detailed instructions.



    I replaced both the ICs (desoldered carefully, tight heat sink connection etc.) but still problem is same. What else could be wrong?



    Also tried manual service mode, I could make other colors to converge but not blue.



    Intresting observation here is: vertical convergence for blue is working but not horizontal.



    Regards,

    GT

  • girishsan Jan 06, 2008

    I looked again, found one discolored (R7059) resistor. I took it out and it shows as open on my multimeter. from schematics it is a current limiting resistor connected to the IC7002.



    1> Do I have to replace just this one or may have to replace 5 more ?



    2> Schematic diag shows them as 2.2 Ohm resistors; but no comments on the Wattage or other special needs (flame resistence, carbon, wire wound etc). Would you know what are the other details?



    Regards,

    GT

  • girishsan Jan 14, 2008

    FixYa !!



    Thanks for the help, it was exciting experience fixing the TV especially after long time I got a chance to work on the electronics stuff.



    Replaced only -ve terminal resistor on the Opamp for Blue Horizontal convergence control R7059 (it was 2.2 Ohm 2W). Now TV looks great. May be ICs were not faulty al all ... I wonder ...



    I had to spend lot of time in actual convergence configuration in the Service Man mode. I still could not get Red CHK to Yellow CHK for "Aging" configuration mode. Why Aging mode setup mneeded ?



    Thanks again,

    GT

  • Anonymous Jan 17, 2008

    The blue has lifted up into a blue rainbow through the TV. The cable banner along the bottom of our televisions is suppose to be an orange color and now it has a funny yellow color because of the blue lifting up out of it. I went into conversion to try and correct the problem or even make the television more watchable to no avail. The screen has also decreased in size on both sides. Dont know if I did that while messing with it or it happened at the same time as blue color lifted out of screen into a rainbow. HELP. dennysgamma@aol.com

  • jdhanna Jan 21, 2008

    I have what sounds like the same problem, only with my red convergence. It just started projecting off to the left and it stretches out more the further left it is on the screen. I've tried adjusting the convergence thru the normal menu, but it only affects the + symbol in the top left corner. Do you think this could be a similar issue?

  • sanderella Feb 14, 2008

    Hi Girishsan,

    I think I might have the same problem with my PT47WX49... Was it fairly easy to repair once you diagnosed which part needed to be replaced?

    Sandra

  • sanderella May 11, 2010

    Where can I find the resistors that you are all referring to? 2ohm, 2watt, metal film, 5% tolerance, flame resistant resistor. What is the part number? I can't find these suckers anywhere!

    Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

×

Ad

5 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Hello

Posted on Sep 24, 2008

Ad
  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

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

Ad
  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

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

Posted on Feb 20, 2008

  • amg5150 Feb 20, 2008

    to exit chk mode on the tv press power and action together, then press power.

×

  • Level 1:

    An expert who has achieved level 1.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 1 Answer

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

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Panasonic Master
  • 8,617 Answers

Here is a link where you should be able to obtain a service manual for your set. http://www.asm-service-manual.com/

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 data...do 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 http://electronix.com/ for 5.99 each. Hope this helps let me know if I can be of any further help.

Posted on Jan 04, 2008

  • 2 more comments 
  • Sonny Berry
    Sonny Berry Jan 06, 2008

    Right next to the ICs you soldered there are some 6.8 Ohm resistors that may be open they are easy to locate there are 7 of them they are R3149 through R3159 they have no color bands on them. Just the marking "RB8 1W J " which translates to 6.8ohm 1 watt 5% tolerance flame resistant. Check these resistors for a couple being open. Let me know how you make out.

  • Sonny Berry
    Sonny Berry Jan 06, 2008

    Sorry about the last post thats a different chassis you'll be looking for 12 light blue resistors 2.2 ohmn. Sorry got the two chassis mixed up. Check those resistors see if one is open.

  • Sonny Berry
    Sonny Berry Jan 06, 2008

    Yes that resistor is a 2.2 Ohm 2watt metal film resistor(flame Risistant) It has a J on it also that means 5% tolerance.

    So what you need are 2.2Ohm 2watt 5% flame resistant resisitor. Do a check on the other ones if they are all within the tolerance range they should be ok. Let me know how you make out .

  • Sonny Berry
    Sonny Berry Jan 14, 2008

    Your Ic is what took out the resistor. They usually burn a resistor when they go. Glad I could be of assistance. Anytime I can help somebody not have to pay a repair guy hundreds of dollars for a basic fix is a good thing. Congratulations on a job well done.

×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

My 10 year old tv goes off after about 5 minutes and the blue


Any colors mis alignments R,G,B.The tv have a problems known as convergence problems,it dead.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.These parts,must be replaced in the tv convergence board to solved the convergence problems.The shop will cost u $300-350 for parts and labors.

Jul 17, 2010 | Panasonic PT-56WXF95 56" Rear Projection...

1 Answer

Convergence problem and cropped picture


your tv is under convergence problem usually we need to replace 2 big integrated circuits in the convergence section, at this point you may need a good tech to come over to your home

Nov 13, 2008 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

Blue shadow above writing and pictures on screen


it sounds to me like your convergence boarde is bad and needs replaced

Oct 23, 2008 | Televison & Video

1 Answer

Service manual request


you need to replace both convergence ICs they are stk392-110
you can get repolacements at the following link with free instalation instructions, they also have your service manual. heres the link
http://servicemanuals.vstore.ca/

Sep 04, 2008 | Panasonic PT-47WX42 47" Rear Projection...

2 Answers

Panasonic rear projection tv convergence problem


Check the regulator and convergences ICs....accordianman

Feb 26, 2008 | Televison & Video

1 Answer

PT-47WX49 47 in. Rear Projectiopn Problem:


get in to the eprom setings and see if any adjustments have changed.the service manual can be gotton at servicemanuals.net

Aug 29, 2007 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

PT-47WX53 blue convergence PROBLEM


Sounds like you have a blue foldover in the convergence. Since tv has been worked on it could be bad ic, maybe not original, generic. I would say if you can open set and look in, look for the blue it should be marked. look for a loose connection. If you can have someone to gently tap around that blue amp and see if it moves are go away, it might be a simple loose connection and needs soldering. If not then my have to change ic again. Becareful cause set would need to be on to really check. Hope this helps.

Aug 15, 2007 | Panasonic PT-47WX53 47" Rear Projection...

1 Answer

PT-47WX53 blue convergence


you will need to change or have the convergence IC's replaced I'm afraid. Good Luck

Aug 15, 2007 | Panasonic PT-47WX53 47" Rear Projection...

3 Answers

Convergence off on PT 47


http://service.us.panasonic.com/OPERMANPDF/PT47WX49E.PDF Hi go to that link and you will get the manual for the TV and it will tell you how to adjust it.

Apr 02, 2007 | Panasonic PT-47WX49 47" Rear Projection...

Not finding what you are looking for?
Panasonic PT-47WX49 47" Rear Projection Television Logo

1,077 people viewed this question

Ask a Question

Usually answered in minutes!

Top Panasonic Televison & Video Experts

 Grubhead
Grubhead

Level 3 Expert

5390 Answers

Demonic-2011
Demonic-2011

Level 3 Expert

508 Answers

The Knight
The Knight

Level 3 Expert

75283 Answers

Are you a Panasonic Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...