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Recent content by Morgann

  1. Morgann

    I have a red LED that doesn't light up

    Thanks for reminding.It seems that I have expressed the wrong problem. This lower part is slowly ground using a matte paper. This LED is determined to be ineffective by using an oscilloscope test. At present, only the adhesive is cracked, so this reason is most likely.
  2. Morgann

    Blinking LED’s

    You have to calculate the working voltage of the LED. If the voltage of the four LEDs exceeds 12V, the LED is impossible to light up.
  3. Morgann

    LED lights gone dim but still flash bright

    There are three reasons for this I know: 1, the circuit power supply is unstable 2, a certain component is broken, affecting the LED 3, LED internal structure problems, such as solder joint welding abnormality, this is a good solution, change the LED will know
  4. Morgann

    I have a red LED that doesn't light up

    I think it seems that I did not express it clearly? I am an LED engineer who specializes in analyzing LEDs, so what confirms that LED problems are the most basic thing for us. Just confirm that it is an LED problem, the LED will be handed to me. I have to analyze the LED to confirm the...
  5. Morgann

    I have a red LED that doesn't light up

    I have found a possible reason with my partners. We are analyzing LEDs, not circuit problems. The LED is determined to be bad. The welded silver paste cracked
  6. Morgann

    I have a red LED that doesn't light up

    Yes, I have,and the LED test is invalid using the instrument.
  7. Morgann

    I have a red LED that doesn't light up

    LED problem, but I did not see any problems
  8. Morgann

    I have a red LED that doesn't light up

    I have a red LED that doesn't light up, but I don't see bad soldering and open circuit after opening. What other reasons will cause it to be off?
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