Question about Samsung HCN5527W 55" Rear Projection Television

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I need help!

Hello, I just found this site and hopefully I will get some help. In October of 2003 I received a Samsung HCN5527W 55" Rear Projection TV from my Grandfather, he bought it at Sears after reading several glowing reviews on the set. I'm disabled and confined to the home much of the time so unfortunately I probably watch more TV than the average American. It has performed very well over the years until about a month ago. Pretty much what I have read in others topics from owners of this same set, red bowed lines across the screen and "Perfect Focus" cancels itself after a few seconds. I think I may have made a mistake by trying to adjust it manually and it is much worse now.

So my questions are,
Can anyone refer me to an honest and qualified tech, or advise me how to find one please? I live in St. Joseph, MO. 64501
Did I do more harm trying to adjust it manually?
Is it harmful to keep using it with the red lines until I get it fixed?
It cost almost $2,000 in 2003, should I just get a new TV and if so what is the most reliable type or brand?
The only place open today said it was $150 just for them to come to my apartment! Very tough for a disabled man with only Social Security as income.

Thank you everyone for any help you may have.
God bless you and Happy New Year!

Michael Curley

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Re: I need help!

the problem you are having is caused by bad convergance amplifiers along with open pico fuses internal to the set. these amps range from $45.00 to $65.00 each and both amps need to be replaced. this is a common problem with rear projection sets. these amps work very hard and are kept cool on large heat sinks. so with that a tech is needed to repair. techs may charge $150.00 to $350.00 for the labor. so shop around. as for the adjustments you made let the tech know because you may have set the settings far out of the range for the set and will cause shut down before it can be reset. the tech will know what to do. to find a factory athorized repair shop call samsung the number is in your manual or on line.
Bob Johnson

Posted on Jan 01, 2008

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Sorry, I just saw this post.
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Yes there is one more step. You should call the technician out and have them set up the Magic Focus adjustments. I have serviced these televisions for years and I have made this mistake and had to return to fix it. You should not have to pay for a rework. The technician should have done the complete job the first time.

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Elissa, unless you have some basic electronics experience probably not, what your describing is one of the most common projection tv problems there is, but it will require replacing a few components on a circuit board. You will need to solder and possibly check resistance values of a few resistors. I will say there is no need for a samsung servicer, any tv repair place will know how to repair this problem. Probably will cost around 300 if you have somebody to your home. I don't think your looking for the Technical details but if so replace the 2 large STK amplifiers probably (STK392-040) and test all resistors and fuses in input/output ckts, replace accordingly.

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