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Case Study: Lenovo Legion 5 - A Burnt Power Converter a Month After the Spill

Device: Lenovo Legion 5 gaming laptop
Symptom: would not power on; liquid had been spilled on it about a month earlier
Diagnosis: power converter PU6201 burnt, with the capacitors beside it scorched
Repair: converter and damaged capacitors replaced at component level, not the motherboard
Turnaround: in on a Monday, repaired on Wednesday, fully tested and ready on Thursday morning

A spill from a month ago feels like old news. The laptop had dried out, and its owner hoped it only needed a nudge. It would not power on at all.

What We Found

Liquid rarely kills a board on the day it goes in. It leaves residue, and the residue keeps conducting where nothing should. On this Legion it had reached the power section: the converter marked PU6201 was burnt, and the capacitors next to it were scorched. About half of that section needed replacing.

The Repair

We replaced the converter and the damaged capacitors, not the motherboard. The laptop powered on straight afterwards. Once the owner gave us the password, we ran the full tests.

The Outcome

Fully tested and ready for collection three days after it came in. The burnt converter was the fault in this machine. Another laptop with liquid damage can fail somewhere else entirely, which is why we diagnose before we quote.

Spilled something on a laptop? See what to do after liquid damage, or Lenovo laptop repair.

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Marcin Skwiercz

Written by

Marcin Skwiercz

Founder & Director

Running Fixfactor since 2014 with a hands-on background in microsoldering and board-level repair. Today focused on growing the business, tracking industry trends, and making sure every device gets the attention it deserves.

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