My uncle told me to always check the fuse first, even on a dead screen.

He's been fixing old radios for years, so I listened when a laptop came in with no display. I spent an hour checking the backlight circuit and voltage regulators, getting nowhere. Finally, I popped out the main board fuse with my tweezers, and sure enough, it was blown. Replaced it for about 50 cents and the thing lit right up. Anyone have a quick way to test those tiny fuses without pulling them?

2 comments

2 Comments

janaw1128d ago

Your uncle is a smart guy. Been there too many times. I keep a cheap multimeter on the bench just for that. Set it to continuity and you can test those little fuses in place. Saves so much time prying them out.

holly89828d ago

Disagree on testing fuses in place. You can get a false reading if there's a parallel circuit path. I just pull them to be sure.