Question Troubleshooting Dell Laptop mobo

Oct 12, 2021
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Hey everyone,

I own a trusty Dell Inspiron 15 3543 laptop, which today had a malfunction of some sort.
When I connected it to power, it did not have the charging led on. It would not respond to the power on button either. I have disassembled it.
  • I have verified that the power supply is working proper with a multimeter.
  • I have also checked that the voltage is there on the board. The voltage on the power led is not present.
  • Visual inspection on both sides shows no signs of damage to pcb (I have not checked under the heatsinks, though).



This laptop has a lot of sentimental value to me. In my locale the repairs shops are overcharging to the point of not making it viable to take it to one. I have access to electronics workshop with all the tools needed for board repairs.

What would you suggest could be the issue?

Best
MI
 

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