Question about Samsung HCN4226W 42" Rear Projection HDTV-Ready Television

14 Answers

No sound or picture on tv

I replace my color wheel it was broken up replace the lamp on my samsung 42in dpl tv the light on front stop flash put i still have no picture or sound on the tv i have to lamp now try both of them put their is still no picture

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  • 5 more comments 
  • williesand33 Dec 16, 2008

    This was no solution to my problem just paid money for a answer no answer not a answer to my problem give me my money back

  • williesand33 Dec 16, 2008

    You said main bord what is it call and what does it look like

  • williesand33 Dec 16, 2008

    I have two lamp try both lamp still no sound no picture

  • williesand33 Dec 16, 2008

    I test the lamp this did not work so i am order the lamp blaster hope this will solve my problem before i add the color wheel all the light were blink on the front of tv now that the color wheel is in when tv is turn on on the lamp light blink

  • williesand33 Dec 19, 2008

    I replace the ballast lamp on tv still have no picture or sound

  • williesand33 Dec 19, 2008

    I replace the ballast board replaced it i still have no picture or sound on tv

  • williesand33 Dec 20, 2008

    Their is nothing wrong with the fan it work ok

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14 Answers

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  • Master
  • 2,267 Answers

I would suggest to check the safety switch that is activated when you install the back cover.
If that switch is activated, then is more likely a defective DMD board that is going to be more expensive to get it replace.
Let me know if you need further assistance.

Posted on Dec 20, 2008

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  • Master
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Its the main controll Ic Located on the Main board (mother board) the largest circuit board in the tv. You can eighter have this replaced or you cant try to repair the board. basic tracing and a tester its all that needed together with a knowledge of soldering.

Posted on Dec 20, 2008

  • Rishi Roshan Ali Dec 20, 2008

    The voltages wont kill you unless you have apace maker, But it will put you to sleep rather quickly, I'm assuming you have electronics experience from you previous post. Me, I'd just change the board, getting juiced up isnt much fun .

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  • Master
  • 449 Answers

Remove horizontal transistor and measure the resistance across any two pins. This value should be no less than 200ohms if more than this change it.

Posted on Dec 19, 2008

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  • Samsung Master
  • 5,138 Answers

Replace Fan

Posted on Dec 19, 2008

  • ladywinn
    ladywinn Jan 05, 2009

    You Need to List Correct model and Chassis # to your TV you give samsung HCN4226W is for Rear Projection TV. If given correct information on which model you have/ will help in giving right Solutions.

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  • Master
  • 449 Answers

Hello, you will need to replace the picture board and the sound IC on your Rear Projection HDTV.

Posted on Dec 19, 2008

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  • 275 Answers

Defenetly are going to need help of technician for this issue.

Posted on Dec 18, 2008

  • Alan R
    Alan R Dec 19, 2008

    hmm sounds though

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  • Master
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Hi,

No one has asked yet model number of your Samsung DLP TV to look into its schematics as whats going on with TV.

Would you like to intimate model number to understand its internal circuitry.

Some one is trying to check DLP Lamp with Multimeter and wants to have reading in Ohms. Please study " Discharge Lamp" technology.

Thank you.



Posted on Dec 16, 2008

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  • 104 Answers

Does the lamp come on and the color wheel spin when the tv is powered on? if not then you will need to look for the lamp fuse either located on the assembly or on the main board near the connections

Posted on Dec 16, 2008

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  • Master
  • 1,011 Answers

Sir,

Click this link for more information....

Thanks
good luck

Posted on Dec 16, 2008

  • Asfiya Ahamed
    Asfiya Ahamed Dec 16, 2008

    tell me the model no. sir

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  • 306 Answers

I hope you have the manual for that set, these HDTVs are way more complex, than our old analog ones.
Make sure, that your are set up for Channel Three, which is where most are set for.
Then with your cable box turned on, hit the source button, on your TV, and hopefully, one of those, depending where your cables are connected to, will give you both picture and sound.
If you are on HDMI, usually two of those, then component set up, and then S-video two also. and so on.
As long as you have your cable box, plugged into the tv, you should get a picture and sound. 
If you don't have the connectors, ask your cable company for them, and check to see you have a High Definition Cable box, also.

Posted on Dec 16, 2008

  • AbdulRahiman S Dec 16, 2008

    else A defective cable is a possibility. They can be had cheap enough so it is worth a try. If that doesn't solve the problem then call Samsung again. Also, try to verify that the cable box is ok..
    While HDTVs have Toslink or coax digital audio outputs, they may not have digital audio inputs, and that set doesn't. In any case, if you have HDMI you should not need that, and you should get the HDMI working.

  • AbdulRahiman S Dec 16, 2008

    You probably need to replace the lamp. It's about $150, and if you buy it with the housing, it's a really easy fix, just unscrew and pull out the old one, and pop the new one in. try tis>>   www.dlplampexpress.com 

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  • Master
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Hi
the main board on these only last 6-8 months on most of these. These boards are not repairable and will have to be replaced. you can contact 
American Systems
13990 Parkeast Circle
Chantilly, VA 20151-2272
1-888-703-5318
USA
for parts and service tech.

Posted on Dec 16, 2008

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  • ABHISHEK.C
    ABHISHEK.C Dec 16, 2008

     If each one were $200 you can see that you could have purchased a new set easily.

    Now, that being said, at least try a couple of free attempts:

    ONE:  Hard reset. Merely unplug the power cord and leave it unplugged for 4 hours or more; then try again.

    TWO:  Vibration test.  Whack it hard with your hand or fist all around the cabinet in order to vibrate any loose connection or cold solder joint internally.  Older sets often have corroded pins in connectors or cold solder joints that start acting up and the vibration will activate them - for a while anyway.  WOrth a try.


  • ABHISHEK.C
    ABHISHEK.C Dec 16, 2008

    If the reset does not help, it is a hardware problem and will be found to be either the audio IC chip or the output amplifier module(s).

    BAD NEWS: You must have a tech look at it; there are too many possibilities to make an educated guess.  This model has no particular indemic problem with audio, so I do not suspect it of being a lemon or having an engineering problem at all.

    JVC makes a fine product, so don't hesitate to get it fixed

    Let me know if you need further assistance.  Thanks for using fixya

  • ABHISHEK.C
    ABHISHEK.C Dec 16, 2008

    Now, your TV is energizing the relay (that is the clicking sound) as it was said it could be the 'high voltage shut down' circuit that is activating the power shut down or the HVSD could be ativated by an overload some where in the power supply or the HV horizontal if it is a CRT type. If you don't have the schematic is going to be guessing. You should get a free estimate from a repair shop.



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  • Master
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Hello
williesand33 Welcome to Fixya
My name is Huum,

Thses new TV's you need a experienced tech to continue with this. They are no longer doit your selfer!
The lamp is as far as it goes for the customer repair!
This is a fine and expensive Tv. Give it the pro care that it needs and you will have it for a very long time!

Thank You For trusting us with your question
Please remember to leave a solved rating before you leave!

Posted on Dec 16, 2008

  • 1 more comment 
  • Neil Golan
    Neil Golan Dec 16, 2008

    I agree with Guru: GINKO

    This was my opinion in the beginning and more than likely not a user friendly

    repair,OR a do it your selfer!


    This job must be done by a technician, as it requires testing on board
    voltages with live power on TV, and it is quite dangerous.
    You and your life are worth more than your TV repair. Your family needs you!
    Bless you and your family!

    Happy holidays
    Ican


  • Neil Golan
    Neil Golan Dec 19, 2008

    The newer Tv's require advanced equipment to diagnose these problems. All you are doing is throwing money into new parts blindly. All that money could have paid a tech to come out to you for one visit
    and have it fixed a long time ago.



  • Neil Golan
    Neil Golan Dec 20, 2008

    Every expert on this site is telling you not to pump your hard earned money into parts and to use it to hire a tv tech. What more can you require!



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  • Samsung Master
  • 19,396 Answers

Unplug power, open the lamp door, take out the bulb and put it back in place, plug back and restart, if it does not start there may be an additional fault.

Posted on Dec 16, 2008

  • 2 more comments 
  • Ginko
    Ginko Dec 16, 2008

    The lamp replacement is still an user level operation.

    Do first waht I suggested, by removing the lamp and putting it back in place. If it still does not work, the lamp must be tested for continuity, to check if it has blown again.

    If the lamp has blown again, or if it is not being powered, the responsible is usually the small high voltage pcb that powers up the lamp, often called ballast board. This should be tested and eventually replaced.
    This job must be done by a technician, as it requires testing on board voltages with live power on TV, and it is quite dangerous.

    Also ensure that the color wheel is assembled properly.


  • Ginko
    Ginko Dec 16, 2008

    It is not main board, there are different people talking to you, and not all of them have TV repairing knowledge.

    When TV does not start up after replacing the lamp:

    Ensure that the lamp is mounted properly, by unplugging AC cord, removing lamp, testing lamp with a multimeter, and putting it back in place.

    In your case also check the color wheel assembly.

    If the lamp does not start, there is need to test the voltages to the lamp, this are coming from a small board that power up the lamp, this is sometimes called ballast board, and is an high voltage power board.
    As I explained testing this is not an easy job, and should be done by an expert repairman.

    Now this is a solution given by a repairman, that normally charges customers to tdo this kind of repairs, if you wanted just a free service I suggest you posting on the free forum section.

    Thanks for using Fixya.

    Thanks


  • Ginko
    Ginko Dec 16, 2008

    To know if the lamp are working or had blown, you need to test the two lamps using a Multimeter.

    You set a Multimeter
    to read impedance (ohms) then put the two sensors of the Multimeter on the lamp contacts, if it reads infinite impedance, then lamp has blown.



    If both lamp have blown, you have the ballast board replaced (it is not a real ballast, that is just a nickname).

    If both lamps are good, you have the TV tested , starting from PSU.

    If old lamp had blown, and new is good, try reinstalling the lamp.




  • Ginko
    Ginko Dec 16, 2008

    About other experts' comments:

    ONE: Hard reset...
    It has already been done.

    TWO:
    Vibration test....Do not do this, this test was widely used to test broken contacts on old CRTs, but can easily damage your rear projection TV.



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  • Samsung Master
  • 61,037 Answers

I would carefully recheck your work for any componets that you may have damaged during your repair job.

Posted on Dec 16, 2008

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