Question about Samsung HCL4715W 47" Rear Projection Television

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Convergence problems the convergence is bad all over. Ihave been able to allign the blue crosses in the middle axis and lower left and right but not upper left and right, and the red wont move at all. Also the red is curving up toward the right.

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In these projection sets, usually the convergence board has failures. These can be some of the IC's and or a number of the capacitors in most cases.

You will have to call the authorized service rep, or a service center that is familiar with your set and has availability of parts for it.

Considering the age of your set, the risk of investing in to an oder set, it may be a better option to consider a new one at this point.


Jerry G.

Posted on Sep 01, 2008

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How do I adjust the convergence properties on an RCA rear projection tv?


Normally on the RCA rear projection TV's you would bring up your menu and choose the Setup menu, then press OK on the remote. That menu would then have Convergence as a choice. Once that was chosen the next menu would give you the choice of either letting the TV run it's own Autoconvergence program, or you would select either Red or Blue convergence.

Choosing Red Convergence would bring up a Yellow cross-hair in the middle of the screen. If the Convergence was not correct you would see separate Green and Red cross-hairs. Once they were perfectly aligned you would again see one Yellow cross-hair.

Choosing Blue Convergence would bring up a Blue cross-hair in the center of the screen. If the alignment was out you would see 2 Blue cross-hairs. Using the Up and Down and Left and Right cursor keys you would adjust the alignment until a single solid Blue cross-hair was in the center of the screen.

May 15, 2011 | RCA Televison & Video

1 Answer

The blue crosses are too far right of center to adjust


you will need to install a convergence repair kit. You can get the convergence repair kit for your model at www.tvrepairworld.com which also contains the CD with step by step instructions for the repair.

Mar 28, 2010 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Convergence problem. Lower left and upper right


Convergence is dead.Know how to solders? Must replaced 2 convergence ICS,and all it resistors.Tries website Tv repair World,com,Tvrpairkits.com for the convergence kit to repair it ur self.The shop will cost u $300 for parts and labors.

Feb 05, 2010 | Toshiba 43A61 43" Rear Projection...

1 Answer

Toshiba Convergence


You have one or more bad convergence amplifiers. Best to replace both convergence output ICs as well as check low value resistors associated with them.

Oct 16, 2009 | Toshiba 42H83 42" Rear Projection...

1 Answer

Red/Orange horizontal lines


it could be that the tv convergence circuit is going bad. One shure way of finding out is to go to the tv feature menu(picture,audio etc.) and select the customer convergence setting, you should get a cross hair pattern(cross in middle of screen). that cross should be white and by aligning the red or blue colors they should move left, right, up or down

Jul 27, 2009 | Akai PT5492S 54" Rear Projection...

1 Answer

Pioneer SD-641HD5 red convergence - not chip problem!


Replace Both of your STKs if they are STK392-110s do not go back with them use STK392-180s better ICs, The 110s fall apart and do not hold up.

Nov 12, 2008 | Pioneer SD-533HD5 53" Rear Projection HDTV

1 Answer

51mp392h Blue Convergence Problem


Hello rogeuryder,

This is the one thing that even make TV repair persons shudder. You don't really have a convergence problem in the normal sense. The convergence works. What you have is a misaligned convergence situation which any documentation and or book on TV repair will tell you that at this point manual convergence adjustment is needed and the only thing you will have to do is keep trying to adjust the convergence until you get the center aligned, and then work towards the outer edges using both static (Center) and dynamic (outer edges) convergence techniques.

As this may sound it is; Very Very Tedious.

Here is something that may help you:

http://books.google.com/books?id=ttBofTJM7FEC&pg=PA112&lpg=PA112&dq=static+convergence&source=web&ots=hyUMeeY9s6&sig=DZm27q1aMbLiwKA__fyysBd2yUE&hl=en&sa=X&oi=book_result&resnum=9&ct=result#PPA112,M1

I have used this book when I use to teach TV repair. I hope you discover what I am tried to convey in my e-mail, this is no longer a question of can you fix a TV? It has become a question of do you have the patience to adjust a TV.

Good fortune in doing this, you will succeed if you just take your time and do static convergence first and then do the dynamic convergence with the manual controls. The procedure will be in the service manual.

I hope this helps

Thank you,

Shuttle83

Jul 25, 2008 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

Blue Convergence just went out?


High Voltage Capacitor? Leave the set unplugged for 1/2 hour most components will selfdischarge, as for your problem, being a Magnavox, you have one of two problems, the convergence I suspect is what is blown out, this unit probably uses STK392-110 Ic's, I would suggest replacing with STK394-160e chips as they are probably shorted, some of the big resistors (1 or 2) may be opened up also, usually they change color. The only other thing that would cause usually a yellow color in the corners is the CRT Fluid, it changes from clear to Orange in color and clamps off the blue color from the fringes, I suspect the chips need replacement, dont forget to put some heatsink dope behind them, they are usually on the left in the front of the set (from the back) Big long heatsink that is fairly tall (probably the biggest heatsink in the set.) Good luck, and the repair usually runs around $350.

Jul 13, 2007 | Philips Magnavox 51MP392H Rear Projection...

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