Question about Samsung LN-T4042H 40 in. LCD HDTV

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When turning tv on does not come on relay(Rel 801) keeps clicking for apprfoximately 5-10 minutes befor coming on.

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: tv keeps clicking but won't turn on

Over time TVs can dry out and then stop working. Switch it on and pour some water in the pack. About 2 pints should do the trick. You'll be back watching 100 channels of diarrhoea in no time.

Posted on Jun 24, 2009

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SOURCE: Samsung LN-T4661F - When I turn the T.V. on, it

In this case, I believe it is the power supply board; more specifically the capacitors are failing. When you have the clicking problem and the long boot up times this has generally been the issue.

When you have video display problems such as shadows and lines that go away after warming up it is usually the LVDS cable and T CONN board going bad.

I had the shadow and line problem and replaced both the cable and board for $120 and that fixed my problem. Since I had the TV apart, I went ahead and replaced the capacitors so I wouldn't run into that later. You can find the parts numbers for the LNT4661F cable and board below. You can find links to you tube ( Part 1 & 2) to show how to replace the capacitors. Good luck.

Samsung A/S-T CON BOARD BN81-01312A

Samsung Lead Connector LVDS BN39-00883A

YouTube (Part 1) http://www.youtube.com/watch?v=Mm51C_RDIZE

YouTube (Part 2) http://www.youtube.com/watch?v=BNHHrgX_6cs

Posted on Dec 18, 2009

  • 113 Answers

SOURCE: Have Samsung HD LCD TV whe turned on it will click

hi,
your lcd ip board (power board) capacitor had already exhusted.
got to replace the ip board

Posted on May 10, 2010

  • 16 Answers

SOURCE: Tv powers on for about

How good are you with a soldering iron? This problem on this TV is usually the faulty connections on the SMPS. Most likely all the parts on the board are good but sometimes ICQ805 is also faulty(most likely it is just the solder connections). You can try heating one area of the board at a time with a hair dryer and see if it stays on for longer. Sometimes you have to heat then freeze to prove the malfunction. IMPORTANT: If you are not good with a soldering iron or don't have a steady hand, LET A PROFESSIONAL DO THE REPAIR. The SMPS is a very delicate circuit and can be easily damaged. If you do this repair incorrectly you will be forced to replace the whole board.
Joe

Posted on Nov 08, 2010

SOURCE: Using Remote- TV keeps

This is a classic "Hic-upping" switchmode power supply problem. The protection circuitry inside the SMPSU, has sensed a severe potential problem, and is attempting the shutting of the set, down to avoid a fire, explosion, or both.
This set had developed a problem, that is so severe that the set must be shut down, (This set should really be removed from the Power and not used),
What is happening is the internal "Fault" that is causing the Protection Circuitry , to detect the problem and attempt to shut down the set, keeps restarting the set, because as soon as it shuts down, the "Faulty" component(s) cool down?, and the "Fault" ostensibly "Clears" so the PSU starts up again, only for the component(s) to heat up, whatever, again and fail, so it shuts down, and if left unattended, this would continue on until the part eventually failed. As related this is called a "Hic-upping Power Supply". Any fault that involves the power supply is usually quite serious, and needs a professional, usually, unless one is familiar with servicing current day, televisions.
And in my professional recommendation, you should get a "Quote" for repair, from, an, Approved Service Center. Now, this point is very important for a good result, Always contact, their "Local" or a, "Head Office" Philips in your case. Ask them, for a referral to an authorised servicing center, where you ask for a "Quote". Now, when you get the information you want, then you can decide as to repair of replacement.
The reason we want an approved agent, is that way, all the engineers are trained on their own brand sets, they have seen almost all faults, and will get the job done quicker, and for less cost, and usually have parts on hand, also sometimes, there has been a service bulletin in issued and the repair may be subsided or even free. There are many, many, many reasons that display this symptom, one must work through the troubleshooting steps to isolate and identify, the Cause and repair that and any damage done.

Posted on Nov 13, 2010

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This happens when your TV's capacitors become weak and cannot charge up to full potential.
You will notice bulging capacitors on the circuit board. They will need replacement and make sure they are not only of the same value but also of the same grade !!

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Hi.
Welcome To Fixya Community.

Solution 1:
  • Try to Turn it ON/OFF(Reset).

If that isn't Working try This:

Solution 2:
  • You are going to upgrade the Firmware of your Mp3 Player in order to perform that follow these Steps:

  • Installation of the Upgrade Tool:

  1. Download the Upgrade Tool application (the download link is in the bottom of this Solution) to your computer.Double click the application.Follow the instructions shown on the screen to complete the installation.Firmware Upgrade:Note: All the existing files in the player will be erased while upgrading,please make a copy of your files before doing this.Turn on MA852-801 player. Press and hold the MENU button todisplay the main menu. Select “Settings” → “System” →“Upgrade” and press the MENU button to confirm. Select “Yes”and then connect the device to a computer via USB interface once you see the following window:
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67092d2.jpg
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2. Select ”Program files” 􀃆 ”Firmware Update” from the Start
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3. Click Open button, and specify the upgrading firmware with
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Note: This process may take about 2 minutes depending on the
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*************************************************************************************(5) 5. Safely remove the player from the PC.
6. Turn on the player. Please wait about 20 seconds for the
player to automatically initialize settings.


Downloads:

Upgrade Tool.
Firmware File.

Additional Help:
Nextar Ma852-801 Mp3 Player Manual Guide.

please don't hesitate asking me if you need any Further Info.
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1 Answer

Power light comes on,clicks before picture comes on then shuts of


Yes, it is either that or the "Startup Circuit" is faulty usually it is the associated relay. Thats the clicking sound you hear. When you turn on the TV, the relay is activated along with a timing transistor, the Relay has to make contact within a certain time frame. If the contact is not made during that time frame, the TV shuts down. This is a safety feature in all TV's. If you can get a schematic it will show you where the relay is or, after you unplug the TV and wait 15 minutes, you can take a look inside at the main circuit board, sometimes they mark the area with either "START UP" or "SHUT DOWN" and there you should see a relay.
But a new one usually has to be soldered in.

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42PF7320A/37


Hi again,

Did you try connecting the TV into a different power outlet?

Jun 07, 2008 | Televison & Video

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No sound or picture


Hello,
I'm not sure if you solved your technical issue or not, but if your TV is still broken, I would be interested in buying the door that covers the AV inputs. This door is on the front of the TV. Unfortunately, mine broke, and it's been difficult to find a replacement. If you are interested, I can be reached at (612) 801-5752 or by email at tremely@mac.com. Thanks.

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TV WILL NOT COME ON


You might have a relay with bad contacts OR a loose or burned loose resistor in the power supply circuit. Stargazer

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