Thursday, September 21, 2023

DIY Series 41: Repair Blown LED Light Bulb (E14 Type, 16W)


Symptoms:

  • LED Light Bulb is not working when Power ON, suspect some parts were burnt

Findings: 

  • Found burnt mark at 3.9kOhm resistor (Marking: 392)
  • Use multimeter to check the resistance on each resistor
  • 2 out of 3 resistors were blown, need replacement parts 

Photos:

  1. E14 Type LED Light Bulb (16W)
  2. Location where the 3.9kOhm resistors were blown
  3. Bought a light bulb socket (E27 Type) and converter (E27 to E14) for easy testing
  4. E14 Type LED Light Bulb is working now after fixing




Tools required:

  • Soldering iron, multimeter, tweezer

Costs involved:

  • SMD Resistor (3.9kOhm, 2pcs): US$0.02

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