This willl take care of the problem....NEVER BUY Samsung!
Samsung TV makes a strange clicking sound
My Samsung TV (52″ LCD) started clicking several times before finally switching on after 30 seconds, this relay clicking gradually got worse each time I turned the set on. ( It turns out that this is quite a common problem with Samsung TVs of all sizes). The problem seems to start after the TV is a year or two old (normally outside guarantee) and sounds like a relay clicking on and off. Samsung deny there is a design problem, so I thought rather than spend money on an engineer, I would try and fix the problem myself.
I thought the first place to look for a problem like this is in the power supply.
I unscrewed the back cover of the TV (20 screws)
Removed the metal cover of the power supply (4 screws)
I carefully looked over the power supply looking for anything out of the ordinary, low and behold I could see a few capacitors (the cylindrical shaped components) that had raised tops. These raised tops are caused when the capacitor breaks down and forms hydrogen gas, if left, eventually the capacitors will blow, and hopefully the top will split open and release the gas pressure, if not, they may just explode.
Check out Capacitor Lab for more details on what to look for when a capacitor fails.
I checked out the replacement cost of a new power supply board, I couldnt find the exact power supply online but this company has ones for smallers TV starting at around 160. So I was guessing it would be around 200 for a new one. Ouch, definately time to DIY.
I decided to replace all the capacitors in the power supply, I guessed if some were bad, then probably Samsung use cheap or poorly designed capacitors and at some point the others would go bad too. and replacing all the capacitors wouldnt cost much more .
Each Capacitor has 3 important values
1. The capacitance measured in μF (micro farads) eg (1000μF)
2. Voltage (eg 50V)
3. Temperature (eg 105C)
This particular Power Supply Unit (PSU) has 3 different types.
1000μF 105C at 10V
1000μF 105C at 25V
47uF 105C at 50V
RS Components have a good selection, so I opted to buy from there. It cost about 12 including postage for a 5 pack of each of the capacitors. I took a few photos of the circuit board so I wouldnt forget what I was doing and set to work.
I re-opened the TV, and completely removed the Power Supply Circuit Board, you need to remove several connectors, again, I took some photos just in case I couldnt work out where they all went when putting it back together. I made sure the Power Supply didnt have any residual power stored in the capacitors by unplugging the TV (whilst it was turned on) from the plug. This is very important as messing with a power supply even 30 minutes after it has been turned off can still give you a nasty shock.
I then drew a simple diagram marking the polarity of each capacitor. To remove each capacitor takes a little time, you need to heat each pin using a soldering iron and whilst it is still molten pull or wiggle each leg out in turn. I found it easiest when I used the other leg as a pivot and rotate the capacitor around the fixed leg.
Anyway once removed, you I used the de-solder pump to clean up any solder that was clogging up the hole and then I inserted a new capacitor (checking the values again) and making sure the polarity was same as the one I had just removed. turning the board over, I bent the pins a little, soldered the joints, and snipped off any left over wire.
I put the board back in and hey-presto it all worked beautifully. Job took about 2 hours in total and excluding tools 12 for the components and postage.
[Added 21th May 2009]
If you snap off the solder connector on the PCB when doing this replacement, it is worth noting that you can re-attach your component in another place as long as it is electrically equal. The Red Line in the diagram below shows where an existing component was, this component could then be re-soldered into any of the positions marked in green. But in the case of a capacitor which has + positive and negative legs, you must make sure that the leg is re-attached to the same track, I have marked with a + plus sign which track it must be re-attached too.
Here is a quick summary of my present actions/responses concerning my Samskunk LN-T4665F Television.
The following is an e-mail that I sent today to the Public Relations Departments of both the HDTV and the Corporate Agencies that represent Samsung at this time.
Dear Agency Personnel,
My Television has a Samsung-Known defect. I have been researching this defect and have noted literally Thousands of other Samsung Customers having the same issue with their TVs. Samsung is repairing some models Free of Charge with an at-home service call by a local vendor
My model is Newer than many models that are receiving the Free home service. I have been informed by Samsung (see below) that my particular model is not covered. I have EXACTLY the same problem with my TV as those noted below, yet I am supposed to pay for my service call?
The following is the information that I personally endeavored. Below my data are many other Customer Comments concerning this item. Please work with Samsung to eliminate such negative customer comments about Samsung Product. Samsung may lose many, many customers with such Word-of-Mouth concerns in the world.
Elena: Hello, I am a Samsung Technical Support representative. How may I assist you today?
Daniel: Hi Elena...My TV is making the \\\'CLICKING\\\' noise that many others are out there. I have read where this is a known problem and Samsung will repair it free (even if not under warranty). Would you please assist me with the steps required to ensure service is provided to repair my TV?
Elena: I apologize for the inconvenience. Let me see how best I can help you in this regard.
Elena: Could you please provide me the model number of the TV?
Elena: Thank you for the information.
Elena: May I know since how long you have been facing this issue with the TV?
Daniel: It started intermittently awhile back and then would finally power-up.
Now, it just clicks...no power. This has been happening for about 6-9 months.
Elena: I am sorry to hear that.
Elena: Do you use any device or surge protector between TV and power outlet?
Daniel: Yes, a surge protector for all electronics at that location.
Elena: Please try connecting the TV directly to the power outlet and check the issue.
Daniel: I did...to no avail. Once again, this is a known issue...please read
comments: Ive had this problem for a few weeks and found this site this morning. Phoned samsung support rather than having a bash myself. The TV was bought in Aug 2007. They aggred to fix the TV free of charged without me asking. The repair company are coming out in 2 days.
Elena: From the information that you have provided, it appears that something else inside the TV might be causing the problem and it needs to be serviced.
Elena: Samsung has decided to cover the repair for a few TVs with power issues in case to case basis. Please call Samsung Customer Service at: 1-800-SAMSUNG
(1-800-726-7864) 9 AM to 9 PM, EST so that we can file a service request on your behalf.
Elena: A service center will check the unit and verify if the TV qualifies for a free service.
Daniel: I only have a cellphone and it is expensive to use...that is why I decided to take this route. Can you do what the phone people do?
Elena: I can understand your situation. And I apologize, as a technical support executive we only troubleshoot the issue and we have limitations. I am glad to process the service request from my side if possible.
Daniel: I would sincerely appreciate that
Elena: As a Level -1 agent I have less authorities and I cannot process ant service request from my side. Please contact our toll free number at: 1-800- SAMSUNG (1-800-726-7864) 9 AM to 9 PM, EST so that we can file a service request on your behalf.
Elena: I hope you can understand my limitations.
Daniel: Thank you.
Elena: You\\\'re welcome. Is there anything else I can assist you with?
Daniel: No......Thank you anyway.
Elena: Tired of tech TV shows that only review your product? Check out Samsung SPSTV \\\"Keep It Simple\\\" every Thursday and Friday where we show you live on the web how to get the most out of your Samsung product. Just click here to check us out online.
Elena: Thank you for chatting with us. If you have a minute, please press the \\\"close\\\" button and fill out a brief survey to help us serve you better. Have a wonderful day!
Damage Resulting = Plan to call Samsung this afternoon at a substantial cellphone rate. I will provide follow-up.
Damage Resulting = I called the 800-samsung number and spoke with Whitney. I provided the information as requested by her. She put me on hold, came back within a minute and stated that my model#LN-T4665F is not one of the units that can receive free repair. She would not allow me to speak with her Supervisor/Manager. I will take this to the next level.
Other Customer Comments/Concerns
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