Question about Samsung HCL4715W 47" Rear Projection Television

1 Answer

Red Curvy Lines across top of screen (Unable to converge)

Hello,

One evening our HCL4715W suddenly had the nasty red lines, all curved, across the majority of the screen, and I am unable to converge manually. I called a local shop, recommended by my father-in-law, and was told it sounded like an "engine problem". The cost for the parts, I was told, would be between $1,200 - $1,400, with an additional $249 for labor.

From the initial research I'd done, I thought it sounded like a convergence circuit might have gone out. I'd love to get an opinion as to whether this sounds right or not. I'd sure hate to have to retire this television. I've loved it for the last 4 years or so. I'd greatly appreciate some solid advice from a Television Guru.

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  • bignaterich Feb 23, 2008

    Thanks, Big Irish. I'm certainly going to get another opinion. Good to hear some feedback this quickly. Happy upcoming St. Patty's day to ya!

    Big Nate

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It sounds like a convergence problem to me also. The average cost to repair this TV is around $450.00-$500.00.

Call another service company that is factory authorized to service your TV. Also, try calling your manufacture and explaining your concerns and ask if will pay for repair or at least for the parts. Have model, serial numbers and purchase date at hand.

Posted on Feb 23, 2008

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Related Questions:

1 Answer

Hello, I've got red wavy lines across screen


There are two common problems with these sets.

Problem #1) Convergence

Symptoms:
  • Screen Looks 3D
  • Colors wont align
  • Video may look distorted
Problem #2 CRT Fluid has clouded over. Symtoms
  • Dull looking video
  • White looking video
  • Halos around objects
  • Red/Orange looking video

You can see some examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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Letters and numbers are 3d and curved picture


Hello

red, green, and blue lines curve across the top of tv is cause by defective convergence STK IC or you have open resistor at convergence section. if you have defective RGB Color vertical ramp probably you have defective STK IC..

Angel
Thanks...

Aug 02, 2009 | RCA D52W23 52" HDTV CRT TV

1 Answer

I have a sony rear projection tv, it has red lines


color convergence is acting up on your sony, usually the convergence power ic's are to blame. replacing both is recommended(mounted on heavy looking metal dissipators)

Jul 31, 2009 | Sony Televison & Video

1 Answer

Red and blue streaks across the screen top and bottom


The Convergence Amp IC's are bad. You should call a good TV Tech for this repair.

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All screen is red


IF THE SCREEN IS ALL RED WITH VIDEO VISIBLE AND RETRACE LINES. ADJUST SCREEN CONTROL IN THE FRONT FOR THE RED TUBE ONLY. TURN CONTROL COUNTER CLOCKWISE. IF THAT DOESNT DO IT THE TUBE CAN BE REJUVINATED.

Nov 19, 2008 | Samsung HCL4715W 47" Rear Projection...

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Flashing red lines on Samsung hcl4715w rear projection


The convergence board wont correct the problem. You need to replace the two Convergence ICs on the sub board STK392-040 and you will be back to normal. See my response above. That site will help you get it back to normal.

Dec 21, 2007 | Samsung HCL4715W 47" Rear Projection...

1 Answer

RED CURVED LINES COMING ACROSS TOP 1/2 OF PICTURE.


Replace the convergence ap ICs. You need 2 of them about 10.00 each compared to 300 for a new module. I am enclosing a link where you can purchase the Cs get some heat sink compound while your there. Also they have a picture on the page i posted with what they look like just get th numbers off your and enter it in the search box. Its an easy repair if yo can solder.
http://www.electronix.com/catalog/

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1 Answer

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This indicates a convergence problem..convergence power supply probally.. however ive seen 2 other cuicits cause this ..

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