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

2008-10-30 by Jip Harrio

Ted,

I received the kit in the mail today. I have removed the PCB from the keyboard and is getting ready now to start wiring. 

Question: How do I use this wire wrap wire? Do I wrap it on the post and then apply a tad bit of solder?

Reggio


--- On Mon, 10/27/08, Ted Summers <djtbs1@...> wrote:

> From: Ted Summers <djtbs1@...>
> Subject: Re: [emax] emax version 2 board SCSI upgrade in action...
> To: emax@yahoogroups.com
> Date: Monday, October 27, 2008, 4:54 PM
> I think even with the solder sucker Radio shack iron (I have
> used one  
> before, but dunno if I still have it), that breaking apart
> the socket  
> with hobby knife or similar (careful not to cut any traces
> below the  
> socket) is still a good idea. Parts of the socket can come
> off without  
> having to successfully remove solder from all 24 pins.
> 
> So I agree with previous post.
> 
> Also- with that solder bulb iron. If you have some dead
> board or  
> something from any dead electronics, use that for desolder
> practice  
> first.
> 
> 
> Just my .02
> 
> Regards,
> Ted
> 
> 
> 
> On Oct 27, 2008, at 2:03 PM, Jip Harrio wrote:
> 
> 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
>  > > >
>  > > >
> 
> 
> 
> 
> 
> 
> [Non-text portions of this message have been removed]

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