Question about Samsung HCL4715W 47" Rear Projection Television

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Red convergence problem

When I turn on the TV, the red is off and I went into the menu to adjust the convergence. I can get it to adjust fine in the middle column, however, the side crosshairs are about two inches off and will not even move towards the crosshairs. I was wondering if it would be wise to go into the service menu and adjust it from there and see if it stays. I was also wondering if the two IC's could be the problem assuming that they control the position of the red image or if I should just replace the entire convergence board.

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Re: Red convergence problem

Yes I think the IC's on the convergence board are bad. This board is no longer available from Samsung but is available for repair or a swap from Find the telephone number and call them. or you could replace the two ic's on the board. Good Luck

Posted on Apr 08, 2007

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Blue will not focus causing "shadows". Magic focus will not solve the problem.

This tv have a problems call convergence,it dead.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.These parts must be replaced to solved convergence problems.The shop will cost u $300-350 for parts and labors.

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Philips 50P8341 50 in. Rear Projection Television

normally when something like this happens, we could right away propose what can be done, in your case, since youve already changed a lot of parts on that tv, you can at anytime fix it. the tv alone is not fixed yet as of the moment but to some it up, experts have already given you some ideas on how to fix the tv. cheers. hope youll fix that tv in no time.

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My tv went multi colored take it as it looks like a 3d television

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....
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  • Screen is bowed or warped.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some photos of convergence problems.



Here is a quick test....

Using your original remote go-to the settings menu then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.

If you can't move them in all directions or cant move them far enough your convergence chips are bad and should be replaced. This is a common problem.

Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a fix


You can see some more examples and find a fix using this link on Fixya

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2 Answers

Blue convergence wont work

This is a common problem. Your convergence has gone out.

Common symptoms are...

1) 3D Video
2) Warped Video
3) Convergence menu does not adjust the red or blue correctly. 4) TV Chirps

Go here for a solution...

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Yes there is a Service Code you have to have to get into Alinement menu and its a Dog following step by step to get in! (1) Turn set on cable (2) Turn sleep timer on 30 min (3) Press Action Twice exit menu 4) now tune to ch 124 (5) adjust vol half way down (6) Now Press vol- on front of TV ,now you should see a RED chk appear in upper corner (7) Now Power on remote hand unit and you shiuld be in menu Press cursor to move Mute locks where you want to aline ADJUST with vol-,Vol+ ch- ch+ for up&down back and forth.If you need anymore help let me know .

Press R-tune to change R-G-B

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1 Answer


You may still one more resistor opened , samsung most of the time its 2 low ohms but can be 3 it will be same value as other 2. I think they are 2.7ohms or 3.9 How to Enter Service Menu for convergence Turn TV off Press Mute 1-8-2-power now you should be in convergence use vol- and vol+ to select an item Use mute and menu to adjust when done Press ADD to save adjustments made.

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1 Answer

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You dont need codes for the service menu you need to repair the convergence circuit. If the lines wont line up in the customer menu they wont line up in the service menu either. Do you know how to solder? If so we can fix this yourself with a little instruction. Otherwise you will need to call a repairman. A good repairman will run you $300-$500 depending on your area. Let me know what you want to do.

Tim Nolan

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Phillips rear projection tv model #60pp9202/17f

Here are some of the most common symptoms and example photos of a convergence problem

  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.

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Do not try to adjust anything yet!! Adjustments do not get out of alighnment all of a suddenly. The convergence adjustments are there to do minor aging alighnments. I would first check for bad solder connections on the convergence IC's first.

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