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Re: [emax] emax version 2 board SCSI upgrade in action...

2008-10-27 by Jip Harrio

That's is good to know. I will look for one in the coming days.


Reggio


--- On Mon, 10/27/08, sm papke <mothrecords@...> wrote:

> From: sm papke <mothrecords@...>
> Subject: Re: [emax] emax version 2 board SCSI upgrade in action...
> To: emax@yahoogroups.com
> Date: Monday, October 27, 2008, 12:49 PM
> Yes, the Radio Shack "Desoldering Iron" part#
> 64-2060 works like a charm! I used one last night to
> de-solder some delicate voice chips, with very minimal heat.
> It can be a bit awkward to use at first though..
> Cheers
> 
> 
> --- On Mon, 10/27/08, Dave Sotnick
> <sotnickd@...> wrote:
> 
> > From: Dave Sotnick <sotnickd@...>
> > Subject: Re: [emax] emax version 2 board SCSI upgrade
> in action...
> > To: emax@yahoogroups.com
> > Date: Monday, October 27, 2008, 10:37 AM
> > Reggio,
> > 
> > I seriously doubt Radio Shack would carry something
> like
> > this:
> > 
> >
> http://www.sparkfun.com/commerce/product_info.php?products_id=609
> > 
> > They're quite expensive and typically used by
> > technicians at service centers.
> > 
> > It is possible to use "desoldering braid" or
> > various kinds of
> > desoldering tools (that use suction and heat at the
> same
> > time) to melt
> > and then suck the solder out of soldering joints. I
> think
> > Radio Shack
> > used to sell a soldering iron with desoldering bulb
> (for
> > suction)
> > attached.
> > 
> > Another thing to watch out for is over-heating
> components
> > when
> > attempting to desolder components/sockets. Heat
> travels
> > very well
> > through the delicate traces on circuit boards, and
> it's
> > possible to
> > damage some components if they get too hot.
> > 
> > -Dave
> > 
> > On Mon, Oct 27, 2008 at 9:38 AM, Jip Harrio
> > <harrioj@...> wrote:
> > > Julian,
> > >
> > > It's good to know that you in the process of
> > actually doing this project. I
> > > am about to get started myself.
> > >
> > > Just curious what this "rework station"
> is.
> > Is this something I could
> > > possibly find at Radio Shack?
> > >
> > > As I was reviewing step 2 in the "Retro
> > Instructions" I opened up my Emax
> > > and discovered that the trace between 11 and 12
> > instead of 12-13 on IC2 has
> > > already been cut.
> > >
> > > Do you think that this will create a problem for
> me?
> > And is there a
> > > recommended way to rejoin the trace?
> > >
> > > I too am planning to add the SCSI port from the
> back
> > instead of adding a
> > > hard drive.
> > >
> > > I will be tracking your project in hopes staying
> safe
> > with this project. I
> > > don't do this type of stuff often but I
> believe
> > that I can do this project
> > > will some good reference and guidance.
> > >
> > > Reggio
> > >
> > > --- On Mon, 10/27/08, Julian
> > <jujulilianan@...> wrote:
> > >
> > >> From: Julian
> <jujulilianan@...>
> > >> Subject: [emax] emax version 2 board SCSI
> upgrade
> > in action...
> > >> To: emax@yahoogroups.com
> > >> Date: Monday, October 27, 2008, 12:00 AM
> > >
> > >> well, seeing as we're tralking about what
> > it's like
> > >> to upgrade a version
> > >> 2 emax, I started work on my version 2 board
> at
> > home
> > >> yesterday
> > >> afternoon, (having skimmed the mod sheet and
> seen
> > all the
> > >> drawings
> > >> thinking it was just a bunch of cut and
> rewires -
> > and
> > >> thinking "ooh!
> > >> simple!")
> > >>
> > >> then as I was going through I got to the
> dreaded
> > U13....
> > >>
> > >> So I took the board into work today and just
> had
> > the socket
> > >> out in 2
> > >> minutes with a rework station, but if I
> didn't
> > have one
> > >> of those
> > >> available to me, it would have been a lot
> more
> > painful -
> > >> would require
> > >> cutting up the socket into pieces with your
> craft
> > knife,
> > >> and
> > >> pulling/cleaning every pin hole separately -
> a
> > good half
> > >> hour plus of
> > >> work, if you wanted to do a neat job.
> > >>
> > >> so tonight I'll hopefully have time to
> put in
> > the new
> > >> socket (yes the
> > >> PCB has a footprint for a 28 pin part - they
> just
> > only
> > >> placed a 24 pin
> > >> socket... bastards! all this hassle, and
> future
> > upgrade
> > >> expense for
> > >> their customers, so they could save a
> fraction of
> > a cent
> > >> per build!) and
> > >> finish the rest of the cutting and wiring.
> > >>
> > >> sometime later this week I'll double
> check my
> > work, and
> > >> then put it
> > >> together and see how the upgrade went.
> > >>
> > >>
> > >> I'd estimate for anyone going to a
> halfway
> > decent tech
> > >> with a basic
> > >> desoldering gun, that there's about 1.5
> hours
> > work from
> > >> sealed case
> > >> without the SCSI mods to sealed case with the
> SCSI
> > mods....
> > >> at least for
> > >> the version 2 PCB in an emax rack - not sure
> how
> > simple the
> > >> keyboard
> > >> comes apart and back together.
> > >>
> > >>
> > >>
> > >> I'm also very very interested in taking a
> SCSI
> > port out
> > >> the back of my
> > >> emax.... half tempted to do a simple remake
> of the
> > original
> > >> emax version
> > >> 2 SCSI adapter PCB. would be very simple to
> route
> > and make.
> > >> might have
> > >> to spend an hour or two working out what pins
> on
> > the 50 way
> > >> headers
> > >> route to the header that goes to the D25....
> will
> > >> research.... If I do
> > >> make a design up, I'll be getting a bunch
> of
> > them
> > >> made.... is anyone
> > >> else interested in this?
> > >>
> > >>
> > >>
> > >>
> > >>
> > >> --
> > >> http://bleepin.com
> > >>
> > >> --
> > >> http://www.fastmail.fm - The way an email
> service
> > should be
> > >
> > >

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