Ask Electronics

3724 readers

4 users here now

For questions about component-level electronic circuits, tools and equipment.

Rules

1: Be nice.

2: Be on-topic (eg: Electronic, not electrical).

3: No commercial stuff, buying, selling or valuations.

4: Be safe.

founded 2 years ago

MODERATORS

[email protected]

Old laptop died 🥲 (lemmy.world)

submitted 1 week ago* (last edited 1 week ago) by [email protected] to c/[email protected]

21 comments fedilink hide all child comments

I tried to start my laptop earlier, only for nothing to happen. It won't start on battery or when plugged in (it can run without a battery when plugged in). The battery does seem to be dead, and so is the 3V CMOS battery.

I opened it up and noticed a circle visable on one of the inductors. Hopefully you can see it in the picture.

Could this be the problem, or is that normal?

Update: I've tested some suggestion and watched some repair videos, but I found nothing. Goodbye old friend 🥲🤚

Thanks for the help guys

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 4 points 1 week ago* (last edited 1 week ago)

The beep multimeters make when in continuity mode. It is a way to test that 2 points are electrically connected with little/no resistance. If they are connected the multimeter will emit a continuous beep. If there is no beep than either the points aren't connected or there is a resistor or something else preventing the connection. The amount is resistance required to prevent a connection (measured in ohms) tends to be possible to set on the multimeter.