Re: how to replace laptop fan?

On 2007-06-12, Allan Adler <ara@xxxxxxxxxxxxxxxxxxxx> wrote:
Allan Adler <ara@xxxxxxxxxxxxxxxxxxxx> writes:

So, I think I know what I have to do to remove the fan. I'm hungry now
and will work on it later, but I first wanted to post details of this
recent progress. All the screws I removed are attached to labels and
have been placed in a sandwich bag, along with the unused labels,
so I don't think I'll have any trouble picking up where I left off.

I still haven't removed the fan but will do so soon.

The person who gave me the laptop suggests that, before replacing the fan,
I make an effort to determine whether it is really the fan that is defective
or the logic that controls it. Specifically, he suggests that:
(1) It is probably a DC fan and probably runs on the exact DC delivered
by the power supply
(2) It should therefore be safe to try to run wires from the power supply
to the fan to see if it spins.
(3) If it does spin, the fan might just need a cleaning.

While I'm working on removing the fan, I'd be interested in other people's
opinions of these suggestions.

Replace the fan, fans that begin to work again after minor service
soon fail again.

Apparently, the laptop also has a damaged sound jack. That was caused by
someone tripping over a cord and ripping something out. So, I can try to
repair that too. For me, this is terra incognita.

If there's no circuit board damage that may be possible.

unsoldering components from motherboards is tricky, you should
defintely prctice on some junk first.

Bye.
Jasen
.

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