Rockbox.org home
release
dev builds
extras
themes manual
wiki
device status forums
mailing lists
IRC bugs
patches
dev guide



Rockbox mail archive

Subject: Re: I got one too
From: Andrew Jamieson (ajamiesn_at_mira.net)
Date: 2002-03-25


Another tip from someone who has burnt more than his fair share of silicon
..... The easiest way to remove an IC from a board (assuming you don't want
it anymore), is to just cut it off with a scalpel, or X-acto knife. Start
at any side, where the legs begin, putting firm (but not _hard_) pressure
until there is a little 'tick', and then move the knife down one or two pins
and continue. At the end of all this, you can just lift the main substrate
of the IC package off the board, and remove the legs that are left with a
soldering iron.

Clean up the pads with some solder wick (and maybe some IC board cleaning
fluid if your really anal like me ;), and your ready to put your new chip on
the board.

Just be careful not to push too hard on the knife, as you can run the risk
of cutting tracks under the IC legs.

I've tried other ways (would you believe a paint striper hot air gun?), and
this is the one that keeps the board in the best condition.

Just trying to help out where I can ......

A

----- Original Message -----
From: "Nielsen Linus (ext)" <Linus.Nielsen_at_elema.siemens.se>
To: <rockbox_at_cool.haxx.se>
Sent: Monday, March 25, 2002 8:13 PM
Subject: RE: I got one too

> Other news from last week that the other guys have been quiet
> about so far:
>
> * Björn's Jukebox CPU seems to have a broken serial port,
> we've chased around for Swedish dealers that can sell us a
> PROM-version of a 7034, but so far we've only found resellers
> selling no less than 40 pieces for 20US$ a piece...

...so if someone has a dead Jukebox, Bjorn will be more that happy to take
the 7034 from it... :-)

If any of you know that you aren't going to use the remote control, or debug
via the serial port on your Jukebox, please contact Björn. You can then swap
CPU boards with him. His CPU board works perfectly, it's only the serial
port that is dead.

> * Linus broke his Jukebox when he disassembled his box and
> use a little excessive force when he put it back again. Apparently some
> circuits burned.

Oh, man, that smell is something I won't forget... One of those small screws
penetrated the isolation of the red power cable from the batteries. Lots of
smoke from underneath the display...
An IRF7416 was killed. I will replace it later this week. I hope that was
the only component that died...

So the GDB stub might be delayed a few more days. It is actually working,
but I have a few more things to do before I release it. Stay tuned.

/Linus



Page was last modified "Jan 10 2012" The Rockbox Crew
aaa