Testing LED in power button

In summary, the conversation discusses an issue with the indicator LED on a laptop, specifically an Acer 7750G running openSUSE 13.2. The individual is unsure of the laptop's age and is unable to find useful information online. They receive a suggestion to test the LED using a battery cell or multimeter, but decide to put it on hold due to time constraints and lack of familiarity with the process. They express gratitude for the suggestion and state their intention to revisit the issue in the future.
  • #1

I'm not having a huge problem, but it bothers me.
Today I noticed the indicator led in my power button doesn't work.

I'm using an Acer 7750G laptop not entirely sure how old (funny how quick we forget and get used to such things).
Is there any software method of testing this LED?
I'm using openSUSE 13.2

A quick(ish) google search didn't amount to any useful information since the results always treat laptops not powering on.

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  • #2
If you are familiar with measuring procedures you can shutdown your laptop and use some wires connected to a battery cell to see if the LED lights up. You may also use a multimeter set on the Ohm-function. Proceed with care if the LED is of SMD type.
  • #3
Well this will be put on the back burner then.
I don't have the time to learn about this now. (not really familiar with this stuff)

Thanks for the answer and I will revisit this if I ever get an answer!


1. How do I test if my LED in the power button is working?

To test if your LED in the power button is working, you will need a multimeter. Set the multimeter to the continuity or resistance mode and touch the probes to the positive and negative terminals of the LED. If the multimeter beeps or shows a low resistance reading, it means the LED is working. If there is no response, the LED may be faulty.

2. Why is it important to test the LED in the power button?

Testing the LED in the power button is important to ensure that it is functioning properly. A faulty LED can indicate a problem with the power button itself or the circuitry connected to it. It is also important for troubleshooting any issues with the device.

3. Can I test the LED in the power button without a multimeter?

Yes, you can test the LED in the power button without a multimeter by visually inspecting it. If the LED is not lit up when the device is turned on, it may be faulty. You can also try replacing the LED with a known working one to see if it lights up.

4. What should I do if the LED in the power button is not working?

If the LED in the power button is not working, you can try replacing it with a new one. If the new LED still does not light up, there may be an issue with the power button or the circuitry connected to it. In this case, it is best to consult a professional for further troubleshooting.

5. Are there any risks involved in testing the LED in the power button?

No, there are no major risks involved in testing the LED in the power button. However, it is important to be careful when handling the multimeter and to avoid touching any exposed wires or components. If you are unsure about how to perform the test, it is best to seek assistance from someone with experience in electronics.

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