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Finally got a handle on those weird Lenovo power circuit issues
I was at a tech meetup in Phoenix last month and a guy showed me his trick with a thermal camera on a ThinkPad motherboard. Spotted a failing capacitor I would've missed, fixed it in 20 minutes. Anyone else have a go-to method for those specific power rail problems?
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gavin_kim38d ago
You're right that a bright light and a multimeter get the job done most of the time. I used to think thermal cameras were just for show, but seeing a hot spot form under power before a component even looks bad changed my view. It's another tool that can save time on the tricky ones.
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That thermal camera trick is just showing off. Most shops can't drop a grand on a toy like that. I've fixed hundreds of those boards with a ten dollar multimeter and a bright light. You look for swollen caps or discolored spots near the power jack. Half the time it's a cracked solder joint you can see if you just look close enough. Fancy gear makes a simple fix seem like rocket science.
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