Bulged Capacitors

As you can see on the image, it is very easy to spot a bad capacitor. All there is, is flat and then bulged. The image is showing you the top of the capacitor. Remember not in all cases that the bulging will appear at the top but also bulging can appear at the bottom part of the capacitor where the circuit board and capacitor meets.

Visible Leak On Capacitor

Sometime, bad capacitors does not bulge but if the top of the capacitor is not tightly sealed it could leak. Just like the picture to your left where it leak.

Have you seen capacitor that were blown but don’t have similarities on the images above? Please let me know I will make sure to post is here to inform everybody having this capacitor problems.

Learn how to fix Samsung LCD with Power Supply Problems (Clicking Sound)

Bad Capacitors

The main cause of this power up problem are bad capacitors on your power supply.  The image to your left shows that the middle capacitor is bulged or swollen and that’s how you can identify if the capacitor is bad. See more bad capacitor images Most of the post I have read online haven’t shown a capacitor that has leaked, but obviously that would be another indicator for a bad capacitor.

Now, if your LCD set is still under warranty I would suggest to use it and let the professionals handle the problem for you.  But for the rest of the Samsung LCD TV owners that their warranty had expired and want to save some money, this would be the best route.  Mind me, when I fixed my power supply I didn’t have any previous experience on desoldering and soldering capacitors on a power supply board.  It was a good experience after all is said and done.

Here’s what you need for this DIY project: Screw driver, Soldering iron(40watts+), Desoldering braid, Soldering wire, and capacitors.

Now lets talk about the specs, capacitors hold 3 important value:

1. The capacitance measured in uF(micro farads) (ex. 2200uF),
2. Voltage (ex. 10v),
3. Temperature (ex. 105°C)

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1000uf 16v Capacitor 105c High Temp, Radial Leads
2200uf 16v Capacitor 105c High Temp, Radial Leads
Weller SP40L Marksman 40 Watt Soldering Iron (See all Soldering Guns & Irons)
Heavy Duty Soldering Iron Stand (See all Soldering Equipment)
Desoldering Wick (See all Soldering Equipment)
Solder Wire 63/37 with a No Clean Flux Core .032, Pocket Pack (0.6 oz)

Important Notes:

Samsung’s power supply capacitors has 10v installed on the board and it is attached to a 12v  bus which is causing to bulged. (I’m not a Electrical Engineer but I do know if you put too much on something, its going to get bigger or burst! ^_^  And that’s why our LCD sets end up with bulged or leaked capacitors)


Look at the bad capacitor and get the right information from it, remember uF, voltage and temperature.  Mine, I only change 2 capacitors.   It needed two 2200 uF, when I first saw my power supply it was really easy to spot the bad caps.  Some Samsung LCD owners did went ahead replace all the capacitors on the power supply to make sure.  Now if you’re like me, an inexperience solder, I would not recommend changing all the capacitors because to me it was time consuming for a noob(newbie) like me ^_^.

Few things to take note, always make sure you have the right polarity.  Negative part is where the colored stripe on the capacitor.  If your looking at the image above, it would be the copper colored stripe.  And if you are looking at the two connector wire of the capacitor, the negative wire is the short one.  On placing it on the board make sure negative to negative and positive to positive.  By this time you will be ready for soldering.

How to Solder and Desolder (Youtube video) is pretty simple and it just need guts to do it   The total cost for this project is $40 (I had to buy a new soldering iron and desoldering braid) You can buy capacitors from radioshack but always remember uF, voltage and temperature(they are price from .40 cents to $5 each).

Here are the models that are known with this problem:
My Official Samsung LCD TV Problem List

Did your Samsung LCD TV just completely went kaboom and does not work anymore but still wants a Samsung TV?

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(If you’re a Samsung LCD owner and have a different model number with the same problem, please let me know)

I just fixed my LCD set last night and all is working fine and turns on normally.   Power up delay and the rainbow background is gone .  I will update if there’s any other effect after installing that 2 capacitors.  This post is based from my own experience fixing my own samsung LCD set.

Your LCD monitor having problems too? Well, I bet it’s having a capacitor problem too just like this ACER X221W

I will not take any responsibility if something wrong happens to YOUR LCD set after reading and taking this advise from non-professional DIY fixer.  USE THIS GUIDE WITH CAUTION!

If this tutorial has help you and save you lots of money. Click on the donation button to buy me a $3 coffee. Thanks!

See what Samsung has to say about this known problem with their LCD and Plasma TV sets.

Attention: Call Samsung (1-800-SAMSUNG) because they are fixing the capacitor problems for FREE!