Question about Panasonic PT-51HX42 51" Rear Projection Television

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Picture not lined up

I read the directions for adjusting the convergence. When you go to the 2nd covergence the white crosses on the bottom left hand corner should be lined up with the other crosses but they are arched up on the bottom. Is there a way to move the white crosses.

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How do find a service manual here to determine the right Convergence IC's for a PT56HX41P?

Posted on Sep 20, 2008

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You will need to replace the convergence ICs I'm afraid. Then do another alighnment. If you already replacxed the IC's, you most likely did not get the exact replacement ICs recommended by the service manual, but whats called after market type IC's, and they just wont do!.

Posted on Jun 09, 2007

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2 Answers

My panasonic PT-47wxc43g projection tv has developed shrinkage in the middle of the screen on both the top and bottom. The picture has an hourglass on its side appearance. The picture is now also too large...


This could be a problem in the convergence board which will cost of repair would range 400.00 or so.
You can get the convergence repair kit at the following link which contains the parts and step by step detailed instructions.

http://www.tvrepairkits.net/panasonic_repair_kits

Thanks
Kevin

Jun 29, 2009 | Televison & Video

1 Answer

The Blue Color on the covergence is bowed to the right


Ur IC in ur Convergence board is short or dead.
Must be replace.Adjusting the yoke colors plastics wheels alone wouldn't help or work.

Aug 19, 2009 | Televison & Video

1 Answer

Convergence is off in the lower right and upper left corner


The repair isn't too complicated if you're comfortable working with a soldering iron. Sounds like one of the "guns" is shot. The chips that need replacing are attached to the heatsink on the convergence board. The reason for replacing both chips is if you're going to bother to take the board out and replace one bad chip, that is the best time to replace the other older chip. The link below is to step by step instructions including pictures of the repair. You can check it out to see if you want to try it. If not, the repair is expensive (between 250-400) depending on the repairman. Best of luck with your convergence problem.
Greg

http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

May 23, 2009 | Toshiba 50A61 50" Rear Projection...

1 Answer

Covergence out of alignment on 1/4 Vertical left side of screen


You need to manually adjust the alignment:
On remote, press Menu to get to the main menu
Then arrow down to "ADVANCED FEATURES"
Then press "enter"
Then Arrow down to "CONVERGENCE" and press "enter"
"Red Convergence" should be highlighted
Press "enter"
You now have Green, Red, and Blue overlapping crosses.
If Red is out of whack, use arrows to align
To toggle to blue (and back to red), press "VIDEO"
Then align blue cross
Once the crosses look aligned, and nice and white, press "AUDIO"
This will bring up the Advanced Convergence screen
This is a grid of the same overlapping colors
You have control over the Red and Blue
If Green is very out of whack, you'll need a repairman…
While the "target" is flashing, you can move it around the screen with the arrows
Place it over an intersection to adjust, then press "enter"
Now the "target" is steady (not flashing), and you can use the arrows move your color
When it's aligned, press "enter" again
Now "target is flashing, and you can go to the next square.
You cannot adjust every intersection.
Some areas need to be adjusted via the adjacent intersection
When you're happy with color you're working on,
Press "video" while target is flashing to change to the other color
Repeat the above (blue is much harder to see and adjust for me…)
When you're happy with the entire grid, start hitting "Menu"
Each press brings you back out one menu level, until you are out of them
Once you're used to the process, it should take no more than a minute or two.

Mar 02, 2009 | Mitsubishi WT-46805 46" Rear Projection...

1 Answer

TOSHIBA 50H72 50IN. REAR PROJECTION TV BLUE COVERGANCE PROBLEM


you have a convergence ampliphier ic failing that will need to be changed and then adjusted
average repair cost for this are 280.00 to 320.00

Jan 20, 2009 | Toshiba 50H72 50" Rear Projection...

1 Answer

Convergence adjustment


HELLO . it sound like you need to replace the convergence board or just the IC'S ON THE BOARD. IT WOULD BE CHEPER THAN THE HOLE BOARD. "GOOD LUCK"

Jul 27, 2008 | Akai PTH5498 54" Rear Projection...

1 Answer

Convergence


http://www.digitalhome.ca/forum/showpost.php?p=564268&postcount=220
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Sep 11, 2007 | Toshiba TP50F50/51 50" Rear Projection...

1 Answer

Converge problem


Sounds like convergence issue--replace Stk IC's mounted

on large heat sinks. Check power supply for open fuse device.

Re-check convergence alignment.

Aug 11, 2007 | Philips 60PP9352 60" Rear Projection...

1 Answer

Convergence.


possible covergence ic are faulty and that your sensor is either sensing it or is at fault also,can the pattern be corrected with adjustment,if not your amps are the fault.

Apr 26, 2007 | Hitachi 51F500 51" Rear Projection...

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