samsung hcn4226w wont turn on


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samsung hcn4226w wont turn on

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bunktech
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Nov 20, 2005, 7:59 PM

Post #1 of 11 (1307 views)
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samsung hcn4226w wont turn on	Can't Post

Hi everyone this is my first post.

This is a new area of repair for me my profession is automotive electrical but here goes. Suddenly my 42 inch samsung failed to turn on any more , just a tiny click from the speakers then silence. It's a HCN4226W and I've had the rear cover off and checked fuse where the 120v comes in and it's ok . I don't see a power supply that I recognize (like a home pc) but I did start checking a few spots with my fluke meter and all I see is 26v ac on some of the 14 gauge circuits and no more than 2 or 3 volts dc on some of the ribbon cables. Is this normal ? Is there any common problems with this model that any of you know of ? I'm ready to order parts off the samsung parts website if someone can lead me in a direction.

Thanks in advance if you can help Eric..

Cajun
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Dec 18, 2005, 8:42 PM

Post #2 of 11 (1251 views)
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Re: [bunktech] samsung hcn4226w wont turn on [In reply to]	Can't Post

My HCN4226W did the same thing right after a convergence problem. Repairman came out and unplugged the blue power leads going to the convergence amp board and the set came on but with only the blue background screen. Once you remove the back cover, it should be on the upper right side and it has two big IC's on it with STK392 040 on them. The blue power leads connect on the left end. Unplug the set, unplug the blue lead, plug the set in and turn on. As for the fix, I just posted a simular problem and still looking for the problem

bunktech
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Dec 19, 2005, 12:16 PM

Post #3 of 11 (1250 views)
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Re: [Cajun] samsung hcn4226w wont turn on [In reply to]	Can't Post

Thanks for your reply its one of only 2 I got in a mounths time. The other guy said his same model is at the repair shop geting some new convergence moduals for $320.00 but he hasnt e-mailed me back to say if that fixed it for sure or not. When I find out I'll pass it along to you.

Cajun
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Jan 18, 2006, 12:30 AM

Post #4 of 11 (1169 views)
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Re: [bunktech] samsung hcn4226w wont turn on [In reply to]	Can't Post

Replace the whole CG/AMP board, that did it for my set. $70 + shipping from vancebaldwin.com

berkman
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Nov 2, 2006, 1:25 PM

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Re: [Cajun] samsung hcn4226w wont turn on [In reply to]	Can't Post

I just received one of these sets, hcn4226w, from a guy that was tired of fixing it. The set does not currently power up at all, no lights, no noise. I checked the fuse near the power cord and it looks good. Are there other components to check? I also tried Cajun's trick of unplugging the power leads to the convergence board and still no power.

I would hate to pay for a new power board (anyone know the part number?) it there is something I can check and replace on the current one.

Thanks.

gearguy
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Nov 3, 2006, 7:22 PM

Post #6 of 11 (756 views)
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Re: [berkman] samsung hcn4226w wont turn on [In reply to]	Can't Post

Does the power LED on the front of the set do anything when you try to turn it on?

The part number for the PCB is BP94-00498A. Vance Baldwin price is $256 plus shipping

berkman
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Nov 4, 2006, 1:29 PM

Post #7 of 11 (741 views)
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Re: [gearguy] samsung hcn4226w wont turn on [In reply to]	Can't Post

There is no light. The lights in the room dim very slightly like the TV is drawing some power but there are no lights or noise at all. The fuse looks good and tested ok with a meter. Are there other fuses?

MOtvGuy
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Nov 5, 2006, 11:35 AM

Post #8 of 11 (736 views)
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Re: [berkman] samsung hcn4226w wont turn on [In reply to]	Can't Post

Trying to troubleshoot a dead set problem over the internet is a waste of time, ours and yours. The board is available. I'd suggest purchasing one if you're interested in repairing the set.

gearguy
User

Nov 6, 2006, 11:35 PM

Post #9 of 11 (723 views)
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Re: [berkman] samsung hcn4226w wont turn on [In reply to]	Can't Post

Go to www.cablesnbulbs.com
send a request in for the part number I listed you. This guy can usually get parts a bit cheaper than you could. Good luck!

Shooter Mike
New User

Aug 3, 2007, 9:25 PM

Post #10 of 11 (378 views)
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Re: [gearguy] samsung hcn4226w wont turn on [In reply to]	Can't Post

In Reply To

Does the power LED on the front of the set do anything when you try to turn it on?

The part number for the PCB is BP94-00498A. Vance Baldwin price is $256 plus shipping

I'm having the exact same problem.
No power, but the light around the power button does blink. What is this symptom indicative of?

My set is a HCN4226WX/XAA
Any troubleshooting I can do to help better determine the root of the problem?

(This post was edited by Shooter Mike on Aug 3, 2007, 9:30 PM)

roots 050
Novice

Sep 26, 2007, 10:11 PM

Post #11 of 11 (263 views)
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Re: [Shooter Mike] samsung hcn4226w wont turn on [In reply to]	Can't Post

does is seems to try to turn on or if the light just blink
mine was trying to turn on with the speaker noise. cuz a had a similar problem and it was the on/off switch that was default a long story ... a kid didnt stop banging on it ...
try to shortcut circuit it before
i tear it off but only could turn it on with remote lol

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