Question about Samsung HC-P4752W 47" Rear Projection HDTV-Ready Television

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Covergence Problem I have the Red,Blue and Green not aligned properly on the TV. I was wondering how to align it thru the Service Screen.

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What exactly are you seeing on the screen? If one of the colors is only slightly off, you should be able to correct it with the standard menu. If one or more of the colors has suddenly taken a dramatic shift, and is curved inward at a side, it means that one of your convergence output IC's has burned out. You should not attempt to realign the convergence if this happens because you will only be messing up all the settings, and when the new IC is installed, the picture will still be out of alignment.

Posted on Aug 27, 2007

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Posted on Jan 02, 2017

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How do i set convergence of red,green ,blue through service mode


Most common cause for this on the Sony KDL 40EX520 is that the connections to the screen across the top edge of the panel become loose causing blurred picture, mis-aligned colors etc. The Fix requires dis-assembly (Removal of the entire case) and re-seating/resecuring the connection across the top of the LCD Panel.
There is a pretty detailed video of the process (less the disassembly) here: https://www.youtube.com/watch?v=80PfZXFGDvQ

Jan 10, 2015 | Sony KDL40EX520 Bravia KDL-40EX520 40 Inch...

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My RCA P52937SG projection tv. Picture distorted. I beleive it has to do with the green circuit / projector. Everything needs to be aligned to green. Green projector is on, but, in alignment screen I get...


The tv have a problems known as a convergence problems,it dead.Tv have colors lines R,G,B mis alignments,have colors shadow pictures or 3D pictures look alike?The tv convergence board is dead.The tv convergence board must have replace the 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board to solved the tv convergence picture problems.The shop,will cost u like $300-350 for parts and labors.

Mar 28, 2011 | RCA R52WH73 Projection Television

1 Answer

50PL9126D/37B 50 in. HDTV DLP TV: the red green and blue colors dont align properly...


Your convergence is out. If it's just out a little, you can adjust with your remote or with older sets there are knobs. If it's way out then your convergence block went out and you'll need to replace it yourself if you're technically adept or take it into the shop for repair.

May 17, 2010 | Philips 50PL9126D/37B 50" DLP TV

1 Answer

Tv out of foucs


These procedures are from the owners manual, go into menu and then picture quality and then: Convergence The Convergence feature lets you adjust the TV’s three tubes. When the TV tubes’ images are precisely aligned, they create the color images you see on the screen. Over time, the picture can drift out of alignment (this is normal). If your picture seems fuzzy or has a yellow tint, using Convergence could correct this misalignment. Only one convergence is needed for all inputs, regardless of the signal format. Note: Make sure the TV has been on for at least 30 minutes (TV needs to warm up for best results) before starting Auto Converge or Red/Blue Centering. When you select the Convergence feature, a submenu appears with three options: Auto Converge Automatically aligns the projection lenses to self-correct color images. You’ll see flashing squares of color dance across the screen (this is normal). Note: After performing auto convergence, use the Blue Centering and Red Centering menus to fine tune convergence in the center of the screen, if necessary. Blue Centering Aligns the blue and green images to fine-tune the picture. Red Centering Aligns the red and green images to fine-tune the picture. Note: The ability to change channels is disabled when adjusting the convergence options. The TV must be tuned to a usable signal to converge the picture.

Apr 23, 2010 | RCA HD52W58 52" TV

1 Answer

Red and blue color on TV is aligned but blurred, green is ok


U have a CRT Tube coolant problems.Tries Websites MCMElectronics.com,Tv reapair World.com to buy CRT tube coolant to recharge ur CRT.

Feb 26, 2010 | Sony KP-46WT500 46" Rear Projection...

1 Answer

The red and blue projectors aren't aligned with the green projector. It is more sever towards the top of the screen. The green projector also has a curve in it at the top of the screen.


this is called convergence.
the set should normally have a function in the menu to adjust/reset this.
it sound like either the mirror in the tv is warped or the green lamp is out of alignment. if the convergence in the menu doent work then its a service job.

Feb 07, 2010 | Hitachi 61SWX10B 61" 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

Red and Blue slightly out of alignment


If constant all over the screen it is the static convergence that needs adjusting.
The green is not adjustable!
Move the red magnets with the blue covered with a piece of card to align with the green and then move the blue with the red covered to align with the green.

May 13, 2017 | Panasonic PT-51G41 51 in. Rear Projection...

1 Answer

All color guns out of alignment


Needs convergence amps replaced. Sometimes resistors burn and need to be replaced. This repair requires soldering/desoldering equip. and a trained eye, but usually can be done for 175.00-325.00 at a reputable service center. Good luck, Russmann.

Nov 01, 2008 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Covergence problem


Convergence amp ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
http://www.hdtvoice.com/voice/showthread.php?t=28929
Or send to ptscorp.com
http://www.hdtvoice.com/voice/index.php?s=
good luck
please mark the post with a fixya

Mar 14, 2008 | JVC AV-56WP30 56" Rear Projection...

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