Bedside LED Lamp turns on and then off in a blink

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Table Lamp

Table lamps are designed to sit on tables. They are not floor lamps, which sit on the floor. Table lamps are usually shorter than floor lamps.

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Erfan Monemi @erfan_m14

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发帖于: 2020年6月1日

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Bedside LED Lamp turns on and then off in a blink

Hello everyone.

Here is my bedside lamp which has some problems, when I turn it on, it turns on just for a moment and then goes off. Which component in its circuit is probably causing this? Is it one of those 3 LEDs or that capacitor or one of those resistors?

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Augustine @salmonjapan 声誉积分: 16.3千 11 17 19 · Answer 1 · 2020-06-01T17:17:46-07:00

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Augustine @salmonjapan

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Wow , the soldering looks bad.

Did you did anything?

Do you have a multimeter?

If so, since it has minimal components, you can actually test quick,

test the LED

Test the resistance of the resistor.

Looking at the LED, i doubt it is bad, it seems that there are bad solder in place.

I would suggest you to resolder those cold / bad solder joints first.

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Table Lamp

Bedside LED Lamp turns on and then off in a blink

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