Question about Samsung HCL4715W 47" Rear Projection Television

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Triple vison My samsung hcl4715w is showing three of everything. One red, one blue, one green. Could anyone please tell me whats wrong and how much it might cost. Thanks

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  • cyndi73 Feb 09, 2009

    thanks!! i can solder so if you can provide more info that would be great.

    thanks again

  • gdrob1 Apr 07, 2009

    I replaced the IC's but the colors are still split -?

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  • 4,234 Answers

This is a convergence problem that can be as simple as poor solder connections on the pins of the convergence ICs or defective ICs. If you can solder, you may be able to fix this yourself. If you wish to attempt the repair, update this and I'll provide additional details and instructions.

Dan

Posted on Feb 09, 2009

  • ABRsvcs Feb 09, 2009

    First locate the convergence ICs. These will be large black ICs attached to a heatsink and marked STKxxx. Try resoldering the pins first. If that fails to resolve the problem, replace the ICs. There may be other parts that need to be replaced as well, but start with the resoldering and/or replacing the ICs and update this with the results.



    Dan

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1 Answer

Samsung hcl4715w green warped after power surge


Projection TV sets have several common problems listed below.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3-D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - makes a chirping sound.
Example Photo:
5f6e85c.jpg
Problem #2 CRT Fluid has clouded over.

Symptoms


  • Dull Video, Washed out
  • White/Bright looking video
  • Halos around objects
  • Red/Orange looking
Example Photo:
ee1ca68.jpg

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

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

Oct 03, 2009 | Samsung HCL4715W 47" Rear Projection...

1 Answer

Samsung three colors on screen, out of focus #hcl4715w


It is a convergence problem. The IC's (integrated circuits) or STK chips or the "guns". You have a red,and blue, IC's that provide all the colors. When the colors are out of convergence, you get ghosting or what looks like 3D pictures. I haven't been able to locate the part numbers for the IC's or STK chips but have located a convergence board. No luck determining if IC's are included (a phone call first to verify) but if they are, would make life much easier for you to install. Part # is BP95-00415H http://jr.partsearch.com/Part/Samsung/Samsung/BP9500415H/New.aspx?ModelMfgName=Samsung&ModelBrandName=Samsung&ModelNumber=HCL4715W

Typically, IC's cost around $10 or less. here is a link to a guy who provides pretty good instructions on replacing the IC's along with pictures.

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

Hope this answers your questions. Best of luck.
Greg

May 31, 2009 | Samsung HCL4715W 47" Rear Projection...

2 Answers

Green out of alignment on samsung rear projection tv


Hi luke I am in the uk and not familiar with this set is it a three tubed crt television or an lcd projector type .. either way what you are descibing is convergence ( three primary colour guns all pointing at the same spot in a nutshell ) in the case of a crt projection tv three tubes one red one green one blue .. there should be a convergence pattern in the menu to re set the convergence via the remote check the manual . If it isn't adjustable you may have a scan coil fault or a tube ie : green with low emission check the green colour gun transistor and associated circuit for leaky caps resistors that have changed value or transistor leakage .. and don't forget the ever popular dry joints on the scan coil plugs .. hope this helps Vortash

May 29, 2009 | Samsung HCL4715W 47" Rear Projection...

1 Answer

Triple vison/WHAT IS AN ic?


If your colors will not line up on the television screen using the convergence menu, the most likely cause is that the convergence IC’s in the set are damaged and need to be replaced.

IC’s are just many small circuits built into one package, many diodes, transistors, resistors, even regulators and power supply circuits, they can be various shapes and sizes.

There are two and sometimes three very large IC’s that control the convergence in a big screen set. They are fastened to a large heat sink because they generate a good deal of heat. Finding these is not that hard, but there is supporting electronics that will also need to be replaced during the repair. There will be fusible resistors and feedback resistors that may have been damaged at the same time.

If you choose to repair the set yourself, be very careful of the high voltage that can be stored in the capacitors, and CRT’s. This voltage can be as high as 30,000 volts.

Unless you are very handy with a soldering iron and reading color codes on the resistors. I would recommend that you have a local television service center have a look at it and get an estimate for the repair.

I don’t use the cheapest parts when I repair this circuit, because I have seen the cheap IC’s damaged as soon as power is applied. I would also recommend that when the IC’s are replaced, whoever does it, that they use plenty of heat sink compound and remove the old compound first.

I guess you are wondering how much this repair would cost.
Not knowing the labor rate in your area and diagnostic fees, I can only give you a ball park figure. I have done this repair for between $375 and $450

I hope this information allows you to resolve this issue.
If I have helped you, please help me, and rate this suggestion the highest FixYa rating. (Two Thumbs Up) If you cant rate this post with the highest rating, then please comment to this post and I will try to help you further.

May 29, 2009 | Samsung HCL4715W 47" Rear Projection...

1 Answer

Blue CRT issues?


Yes the puddle is related to the Blue CRT coolant leaking. You are most likely going to need a new Blue CRT drive circuit board and quite possibly a new Blue CRT if the CRT got too hot from not haveing a sufficent supply of coolant. You can get replacement CRT drives and CRts at the following link.
http://servicemanuals.vstore.ca/

Jan 15, 2009 | Samsung HCL4715W 47" Rear Projection...

1 Answer

No blue just red and green tint


adjust the blue bias on the high voltage block .
it has focus and bias for all three colors

Dec 26, 2008 | Samsung PCL5415RB 54" Rear Projection...

1 Answer

HCL4715W Rear projection CRT problem


your screen and focus controls need adjustment to acheive a good grey scale picture the adjustment are not on the crt neck boards.(focus block)

Aug 29, 2007 | Samsung HCL4715W 47" Rear Projection...

1 Answer

Convergence


Replace both convergence IC's part# STK392-040. Also check for burnt/discolored resistors nearby.

Aug 23, 2007 | Samsung HCL4715W 47" Rear Projection...

6 Answers

15 pin VGA connector damaged.


i want to know that what is the color combination of vaga cable connector

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