Question about Samsung HCN473W 47" Rear Projection Television

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Samsung HCN473w out of focus

My TV went out of focus last night and using the perfect focus, it will only go as far as 4%. I'm not sure what to do from here, any help is greatly appreciated. Thanx in advance!

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Re: Samsung HCN473w out of focus

You better do not open the TV unles you know something about electronic. I was trying ti fix mine and did more damage. It is very hard to replace these chips if you do not have proper tools and soldering expirience.

Posted on Aug 10, 2007

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Re: 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

Posted on Mar 27, 2007

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They went away along time ago now they are back why?they are colored sparkles on the tv screen/

Convergence is dead.Try Tv repair to buy a whole convergence board for the replacement.The Samsung/Akai use the same convergence board.

Mar 22, 2010 | Samsung HCN473W 47" Rear Projection...

1 Answer

Samsung HCN5529W 55in Rear Projection can't Perfect Focus

hello What you have is a convergence problem. There is 2 modules inside your set that aligns the colors to have the same geometry and superposed . It is a common problem in rear projection tvs ,
You don`t have to worry about your blue tube , i`m sure it is perfectly fine, it just needs to be aligned through the convergence circuit.
Most often the problem is with those convergence modules that are faulty and need to be replaced.
Hope this will help good luck

Dec 07, 2009 | Samsung HCN5529W 55" 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

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

Double image on letters for progran guide, 12" green line during perfect focus and on start up componet one need to be re-booted a few times to acquire video

Best advice run as fast as you can to the nearest Repair Shop that does samsung warranty- /// quit calling circuit city it seems like they could care less if your set is fixed or not bad business,first of all those double images you are seeing means you have convergence going out repair cost with out warranty is 350.00 and up to as much as 560.00

Jan 19, 2008 | Samsung HCN529W 52" Rear Projection...

1 Answer

Blue blurry on perfect focus

Did you try the manual lense focus in the back? There is a wing nut on it and it's pretty easy to change. You just need someone to look at the TV and tell you when it looks good. Additionally for the Blue tube, it's on the far left. You take off the bottom panel in the back to get to this area. Good Luck.

Jan 13, 2008 | Samsung PCN5425R 54" Rear Projection...

1 Answer

My samsung projection tv #pcl5415r don't want to perform perfect focus adjustments

perfect focus functions are based on service mode setup...or factory settings. if the alignment of these setting are loss then the unit wont perfect focus. does the unit have a complete loss of convergence. a complete loss of convergence indicate possible failure of convergence amps.

Jan 03, 2008 | Samsung PCL541R 54" Rear Projection...

1 Answer

Out of Focus

· Samsung parts for convergance problem

Nov 24, 2007 | Samsung HCN4226W 42" Rear Projection...

1 Answer

Perfect Focus

Perfect "FOCUS" is a misnomer.Convergence is the real issue.Enter servicer mode--perform accurate convergence alignment procedure--activate perfect focus as last step to 100% alignment.If you have a High-Definition source,check procedure for that.

Sep 27, 2007 | Samsung HCN5527W 55" Rear Projection...

1 Answer

TV turns on but no picture.

Just had the exact same problem. A Technician from an authorized Samsung service center checked mine and said the convergence unit was gone and it does not allow the TV to turn on. He demo-ed by turning the convergence off and the TV turned on but the picture is very poor and out of focus. He also told me a need a blue tube and other parts for a total cost of ~ $800. No impressed as this TV is only 4 yrs old and is now worthless.

Aug 23, 2007 | Samsung HCN473W 47" Rear Projection...

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