Question about Samsung HC-P4752W 47" Rear Projection HDTV-Ready Television

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Call samsung file a complant

I have the same tv and it just went threw the same thing and it gets bad now after all new tubes ics and focus's its still not right the ics are not samsung they are sony & tubes dont know what they are but now i have a samsung sony tv a samsony if you will not funny so call samsong the dont sell there parts no more so its a lemmon 1800 726 7864 bought mine 5-05 $1495.00 alot of money every 2 to 3 years hey dan

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  • telecom7 Dec 16, 2008

    i am experiencing the same problem with HC-P4752W. I called smasung last week they said too bad soo sad. I tried again after reading your suggestion, the girl chuckled and said she could only give me repair companies in our area. 

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I like your Samsony, sorry to hear that but we still repair them in Australia I thing your problem in the main printer circuit borad included convergence drive but the part No. may be different from US and Australia check if that part No. exiting in US BP94-00756C

Posted on Nov 30, 2008

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Short red line in center bottom of screen on a samsung hc-p4752w. I just replaced the stk392-010 with stk392-040 due to failure and the red line was present before replacing the stk's. Convergence is now...


if the ic have been replaced, it may be necessary to refocus the rprojection tubes, this is done by moving the rings near the bottom of the tube, determine which tube and by focusing the lens .. be careful when doing so high voltage can kill you!!

Dec 25, 2009 | Samsung HC-P4752W 47" Rear Projection...

1 Answer

Samsung hcn4226wx/xaa red color out of focus


Ok first of all, the convergence board you are looking for is no longer available from Samsung, probably because of the large failure these boards are having. The only thing to do though would be to replace the convergence amp IC's on the convergence amp board. this will involve locating the convergence amp board, going to http://www.samsungparts.com, entering your model number, without the /xaa prefix. Locating the list of parts for this TV set, and getting the right convergence amp IC's for this TV set. The numbers for the convergence amps are STK-392-040. You will also need to get the service manual for this TV set to perform touchup convergence, as well as to realighn the magic focus into the memory of this TV set. If you have the ability to solder and unsolder, you should have no problem replacing thes convergence amp IC's. But i will have to say this, about 45% of these TV sets do still have a problem after the convergence IC's are replaced. this is usually due to the burnt ground return resustors on the convergence board, so be perpared to know how to read a scematic diagram in the service manual and to trouble shoot the board. There is no simple repair to this problem I'm afraid, with this Samsung TV set. But , if at any time, you feel lost in the repair of this set, do not continue, and call out a pro to assist you in the repair of this TV set. Good Luck with the repair of this TV set.

Jun 26, 2007 | Samsung HCN4226W 42" Rear Projection...

1 Answer

Green & Blue Ghosting Convergance problem


Odds are real good that the cooling fluid in the green and blue picture tube assemblies has become contaminated. You can tell by looking down into the lenses with a flash light. Funny thing is the red never gets contaminated because whatever organism is causing the problem can't survive in red light. BTW this may still not solve all of your convergence problems but when the colors are so badly diffused the convergence sensors for flash focus can't lock onto the beam landing.

Jun 01, 2009 | Samsung HCL473W 47" Rear Projection...

1 Answer

The screen has a wave across it you can see two of everything.


The convergence is out . There are big ICs in the tv that go bad or get bad solder connections, that control each CRT to focus the picture one on top of the other. DO NOT move or try to adjust lens. The fluid is a coolant like in your car to keep the tubes cool.

Nov 25, 2008 | Samsung HCM4216W 42" Rear Projection...

1 Answer

Samsung 42" rear projection HD tv issue


1 they are either rebuilt or a defective returned to stock accidentaly
2 yes securly attaching it helps the heatsinks keep even cooler. no you don't need heatsink grease.
3 if the tolernace is very far out of wack then it woun't take long befor they blow. once you have instaled the new board turn on the set enter mute,1,8,3 then perfect focus on the remote let it do it's thing then shut off the tv and resart the tv and press perfect focus again.

Mar 05, 2008 | Samsung HCM4215W 42" Rear Projection...

1 Answer

Image


Samsung parts for convergance problem
http://www.partstore.com/Part/Samsung/Samsung/BP9500142E/New.aspx

Convergence amp ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
Sony Convergence
http://www.techlore.com/blog/entry/19694/Sony-Convergence-Repair-My-Sony-TV-has-a-distorted-picture-/
http://www.techlore.com/article/19631/Sony-Convergence-Procedure/

Jan 29, 2008 | Samsung HCM5525W 55" Rear Projection...

1 Answer

Projection tv


A lot of times when the convergence ICs blow, there are also problems with resistors on the board (talking from Hitachi experience), or the board itself.

If the other problems, like blown resistors, are not repaired, the ICs will blow again right away. If the ICs are your only problem, then replacing them may work
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Jan 10, 2008 | Samsung HCL4715W 47" Rear Projection...

2 Answers

Samsung HCN473w out of focus


The convergence IC's in this TV set are bad. Both IC's should be replaced at the same time. They are labeled STK 392-040. Use only the ones that are not replacements but from a reliable source. The complete convergence board is no longer available from Samsung, so this is why these IC's need to be replaced. You will also need the service manual for this TV set as after vthe IC's are replaced you will need to go into the service menu and do a convergence alighnment. Good Luck

Mar 27, 2007 | Samsung HCN473W 47" Rear Projection...

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