Question about Samsung HCN653W 65" Rear Projection Television

3 Answers

My Big screen is dead..

My samsung just died.. No Pic.. NO sound just a red light on the front.. I was told I need a Convergence board. I have no Idea what the part number would be whats more what the hell are SKT's. What's a convergence board look like..

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  • dogofnews Oct 05, 2008



    My model number is HCB653W.

  • dogofnews Oct 06, 2008

    Thanks.. My only other question is what's the difference between a COnvergence amp and a convergence board? Which one do I need given my problem..

  • dogofnews Oct 10, 2008

    Hi,



    Well I did it.. I go the convergence amp for about 100 dollars including shipping and now have a 65 inch Hi Def tv that my buddy was going to trash.. Woo Hoo.. Excuse me while I go watch the Steelers and Pen's games.



    Thanks for the help..

  • bigbub_70634 Jan 19, 2009

    a red light comes no but no pic

  • djohnsonii Feb 03, 2009

    my Samsung HCN653W will not turn on. It does make a slight click sound at the beginning when I push power, but no picture apprears. Does anybody know what is wrong with this? your help would be greatly appreciated.

  • iwannafix Mar 15, 2009

    I have hcn653w samsung rear projection tv--- at power up all you hear is a click and then red light appears and stays on

  • may55656 May 25, 2009

    I have the samsung HCN653W rear projection television, we were watching it and it just went off and the red timer light is on on the front, cannot get it to do anything. I have tried unplugging it, plugging it back in same, nothing but the red timer light. help please!

  • may55656 May 11, 2010

    All this stuff is old and not helping me I just need a direct answer to my last post.

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What's the model? We may be able to find one from partstore.com
A convergence board looks like this.
http://www.partstore.com/Part/Samsung/Samsung/BP9400383A/New.aspx

Posted on Oct 04, 2008

  • Rachelle Aviles
    Rachelle Aviles Oct 06, 2008

    both the amp and convergence board are available in partstore.com



    If you dont plan to install it yourself though, you can call samsung at 1800SAMSUNG



    or request for service here



    If you will ask a local tech to install it, you can have him check first which one has to be replaced.

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  • 2,712 Answers

STK's are the convergence IC's. There are two which are usually located over large heat sinks towards the left of the TV (depending upon the model). But before you attempt to change them, try the following first:

1. Try this - hold the menu button down for 10 seconds. TV should power up; you will have to turn off front panel buttons on menu.

2. You can also try a hard reset: Unplug TV from AC mains and remove all cables from TV. Wait about 30 minutes and re-plug to AC power and redo the cabling. Switch on the TV and see if it works..

3. Powering down the set or putting it in standby may have allowed the power supply to cool. Weak capacitors often go out of spec when they cool, thus preventing a section of the power supply from firing up properly again. There is a simple trick...just warm the back of the TV with a hair dryer for 5-7 mins after you have unplugged the TV. Look for the little areas of holes in the back panel of TV. Use these as your guide at where to use the hairdryer, but don't hold the dryer too close (say 5-6inches away). (Make sure the dryer is on High heat). If the TV doesn't turn on after you have heated it up (like it tries to come on but then turns off) you need to unplug the TV again, this resets it. And repeat those steps till it works. Resetting the TV after it fails to turn on is the key. Also, just leave the TV on. Don't turn in off. Since it is LCD, it doesn't take much power...only a few bucks extra a month for your utility bill.

4. A circuit board may crack about some of the larger components mounted on it. You can inspect the PCB's for fractures, and then repair them. It may also be poor soldering that has failed. I would be checking for these things first.

5. If you want to go in for a long term solution, you can easily replace the whole power board or just change the faulty capacitors. You will have to open the back panel and take a look. You can make out which are faulty, because their caps will be swollen on top. Here's a sample pic of a bust capacitor (not same model):
My Big screen is dead.. - a2f3d97.jpg
Check the specifications of the faulty capacitors, and get the replacements from your local electronics shop. If you are comfortable with this, you can use a pair of needle nose pliers to G-E-N-T-L-Y pull out the defunct capacitors. Once that is done, solder in the new capacitors carefully. If are unsure how to do this, try to get a friend who knows this kinda stuff to do it for you, or get a qualified technician.
Warning: If you do not have a background in electronics repair, or are inexperienced, get a qualified technician to do it for you.

REMEMBER there are very dangerous voltages inside a TV that can KILL. Be sure to work SAFE when dealing with electricity. DISCONNECT THE POWER BEFORE YOU DO ANYTHING.

Hope that helps!

Posted on Oct 04, 2008

  • Swilin Sampson
    Swilin Sampson Oct 04, 2008

    Here is a pictorial guide to assist you in case you decide to replace the STK's. Make sure you use STK392-110. The TV model in the guide is different to yours, but you can get a rough idea..
    http://home.earthlink.net/~oleg.filippov...

    However, I do think it is more an issue with the power board than the convergence board..


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  • 10,594 Answers

Please mention model number of your Samsung Tv to help you out.
Model number will let me know what exactly circuit is in TV.

Posted on Oct 04, 2008

  • Shahid Electronics
    Shahid Electronics Oct 04, 2008


    Blow is picture of STK IC, just as reference.





  • Shahid Electronics
    Shahid Electronics Oct 05, 2008


    You can get convergence board at Part Store and price is approx $84



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