What Are Samsung TV Bad Capacitor Symptoms? Complete Guide

Wondering what are the Samsung TV bad capacitor symptoms? Well, keep reading!

By the end of this guide, you will know how to diagnose your Samsung TV with bad capacitors and how to replace them without spending on repair services.

Keep reading, as we unveil all of the symptoms your TV might have when there are bad capacitors.

General symptoms of a bad capacitor on your Samsung TVs are a slow start-up and black picture after the boot. You might also hear a clicking noise and the sound/power LED is on but a picture won’t show up. Lastly, your screen could be flickering all of the time.

Let’s now review the symptoms that your TV could have if there is a bad capacitor/s.

What Are The Samsung TV Bad Capacitor Symptoms?

Although the capacitors in any Samsung TV could malfunction, there are models between 2004 and 2008 who could have plenty of issues due to such issues.

Symptoms related to bad capacitors can go from bad startup all the way to flickering of the screen and random clicking noises.

Let’s take a look at the symptoms and help you identify whether your TV is having faulty capacitors and then show you how to replace them.

Symptom #1 Problems With Startup/Pink Dot Upon Startup

The most common problem you could get with a bad capacitor in your Samsung TV is issues with the startup and disappearing pink dot.

Since capacitors are responsible for the electric charge and are used to filter circuits, the startup problems are directly related to power flow issues of your Samsung TV.

You can tell your Samsung TV has a problematic startup if it takes 2-3 times longer than usual for the television to boot.

The pink dot can usually appear on the middle of the screen and it indicates a distortion of the display.

Problems with the startup could be identified when your Samsung TV boots and powers off multiple times before it can run properly.

Symptom #2 TV Screen Flickering

The second most common symptom that could start appearing on your Samsung TV when a capacitor/s fails, is screen flickering.

This trouble could appear from a variety of sources. The constant flickering of your Samsung TV screen makes it almost certain that a capacitor has failed if you also share symptom #1.

The screen flickering doesn’t have anything special to it, but it could start appearing after your TV works for a while.

When your Samsung unit has a blown-up capacitor, the rest of the capacitors must replace it in their duty. So, your TV could start heating up more and the screen would also flicker.

Symptom #3 No Picture/Clicking Noises

The third general symptom of a failed capacitor inside of your Samsung TV is no picture with the addition of clicking noises.

There is nothing special to that symptom, except the fact that your Samsung device’s sound and power LED are on, but no picture would appear.

You could also hear a silent clicking or tapping noise, coming back from the pack panel where the motherboard and capacitors are located.

If you share this symptom with a slight addition to the previous ones we’ve shared, your Samsung TV almost certainly has a faulty capacitor.

Now that you know what are the bad TV capacitor symptoms, let’s proceed to recognizing the faulty component and later replacing it.

How Do I Tell If My Samsung TV Capacitor Is Blown?

If any of the symptoms above apply to your Samsung TV, then there is a chance that one or more capacitors have blown.

It’s natural for such things to happen over time, but the crucial part is replacing them as fast as you can to avoid overloading the rest of the capacitors too much.

You will be able to check your TV’s capacitors by removing the back panel and inspecting the power supply board.

How To Dismount Samsung TV’s Back Panel?

To dismount your TV’s back panel, follow the steps down below:

1. Turn OFF your Samsung TV and disconnect it from the power source.
2. Put the television lying on the front screen with the stand keeping it from the ground.
3. Unscrew all screws keeping the back panel (6 on a count for 2004-2008 models).
4. Remove the back panel.

Once you’re done, on the back of your Samsung TV you will see 2 large boards.

One of them is the input board, where all of your TV’s cables go in and the power supply board, where the capacitors are located.

You will want to dismount the power supply board by disconnecting the display wires, the input wire, and the hardware buttons wire.

How To Check For Bad Capacitors?

Once you have the power supply board taken out, you will be able to check for blown capacitors.

Usually, there is a physical difference between healthy capacitors and blown ones and you can tell by looking at their top.

Here are some of the physical signs you can use to distinguish blown capacitors from working ones:

Sign #1: Marks of Burned – A blown capacitor is going to have its body in burned spots all over.

Sign #2: Smell of Burned – Whenever you get close to a burned capacitor, you will be able to sense an acrid smell.

Sign #3: Split Head Part – The major difference between blown capacitors and healthy units is the splattered head part of the capacitor.

By looking at the signs above, you will be able to distinguish a faulty capacitor from the other ones on your power board.

Keep in mind that in almost every case, 2 or more capacitors would go faulty.

In other words, it is a very rare occurrence that a single capacitor is going to blow up whenever there is a fault with your TV.

Can I Replace A Capacitor On My Own?

Is it possible to replace a faulty capacitor of your Samsung TV on your own?

The answer is yes, but keep in mind that this requires a minimum of technical skills and knowledge of the TV’s components.

Note: The capacitor’s location and power poles must all be taken into consideration when replacing the technical component to make your TV work.

Down below are the steps for replacing a faulty capacitor on your Samsung TV.

Step #1 Remove The Power Supply

In terms of removing the power supply, we mean taking the board out. With the supply board taken out, you will be able to easily remove the faulty capacitors and replace them with the new one.

To remove the power supply, you must disconnect all adapters connected to it. There are 4 general adapters that supply the different parts of your TV with power from the board.

Disconnect them and unscrew the power supply board before you attempt to take it out.

Step #2 Remove Faulty Capacitors

The next step is to remove the faulty capacitor units. We assume you’ve already examined your Samsung TV’s capacitors during the previous part of this guide

So now you simply have to remove them and assign new capacitors of the same type.

We suggest taking the faulty capacitors to a technician so he could give you the same replacement types for your Samsung TV.

Step #3 Install New Capacitors

Lastly, you will have to install the new capacitors in the slots of the faulty one.

Make sure to mind the electric poles and how you insert the two wires of the capacitor.

After removing a capacitor, the slot will become visible and it will have two holes in it. Insert the new capacitor following these holes as you mind the poles.

If everything worked correctly, once you assemble your TV, you shall no longer experience any of the symptoms we’ve introduced at the beginning.

Read Next: Why Is Sound And Picture Out Of Sync On Samsung TV?

Bottom Line:

The common symptoms of a faulty capacitor are the screen blinking and clicking sound on the back panel area of your TV. Your display could also go off sometimes if there is a faulty capacitor inside of the power circuit.

After finding out what are the Samsung TV bad capacitor symptoms, we hope you were able to identify the faulty units and replace them following our guideline.

It is worth knowing how to replace TV components yourself, since it will save you hundreds of dollars.