Stamp Repair Service?
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Posts: 46,084
I have been doing spring cleaning a bit early this year (too much
junk...)and found a couple of Stamps that don't run or accept programs.
Does anyone offer repair services to replace compiler chips, etc...or are
these destined to the junk bin?
Chris
junk...)and found a couple of Stamps that don't run or accept programs.
Does anyone offer repair services to replace compiler chips, etc...or are
these destined to the junk bin?
Chris
Comments
chris01@t... writes:
> I have been doing spring cleaning a bit early this year (too much
> junk...)and found a couple of Stamps that don't run or accept programs.
> Does anyone offer repair services to replace compiler chips, etc...or are
> these destined to the junk bin?
>
> Chris
I saw a previous post to this forum where somebody said you can send it to
Parallax and get a replacemetnt at 50% of the normal price.
I don't know if that is true or not.
[noparse][[/noparse]Non-text portions of this message have been removed]
Parallax offers warranty and non-warranty replacements for all BASIC
Stamps.
For BASIC Stamp Modules, we don't replace the surface-mounted PBASIC
interpreter chips. We issue a completely new BASIC Stamp.
Customers are required to call Customer Service/Sales at (888) 512-1024
to request an RMA number.
It would be helpful if you called with a copy of your receipt, but we
can look your order up in the system.
The defective/damaged product needs to be returned to Parallax to
receive a replacement.
As an example, the BS2-IC replacement cost is currently $26.
Erik Wood
ewood@p...
Parallax, Inc.
599 Menlo Dr., Suite #100
Rocklin, CA 95765
(916) 624-8333
www.parallax.com
Original Message
From: smartdim@a... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=Z4YM8_1USltkNkZz2z5CTjekaOiXPyD867M4QNPNeoW3xayBqdGaviuTQZdyIvuTSDJspI3cedBZ]smartdim@a...[/url
Sent: Tuesday, January 28, 2003 7:57 AM
To: basicstamps@yahoogroups.com
Subject: Re: [noparse][[/noparse]basicstamps] Stamp Repair Service?
In a message dated 1/28/2003 7:50:04 AM Pacific Standard Time,
chris01@t... writes:
> I have been doing spring cleaning a bit early this year (too much
> junk...)and found a couple of Stamps that don't run or accept
> programs. Does anyone offer repair services to replace compiler chips,
> etc...or are these destined to the junk bin?
>
> Chris
I saw a previous post to this forum where somebody said you can send it
to
Parallax and get a replacemetnt at 50% of the normal price.
I don't know if that is true or not.
[noparse][[/noparse]Non-text portions of this message have been removed]
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You can buy the surface mount interperter IC's from Parallax. It's
just a matter of swapping out the IC to fix the stamp. When I smoked
my BS2p40 IC I just ordered a BS2p40 interperter IC from Parallax for
$18 and swapped it out. In a pinch you can use a heat gun set to 700
F to 750 F. Cover the other parts of the stamp with aluminum tape to
reflect the heat leaving the interperter IC exposed. With the heat
gun on and about 1 to 2 inches from the IC, use a circular motion
with the heat gun untill you see the solder on the IC leads get
bright silver(molten solder). With the heat still applied pick the IC
off with a decent pair of tweasers, being careful not to burn your
hands. Wait for the stamp board to cool off and then remove the
aluminum tape. Clean the pads off with solder wick, being careful not
to use too much pressure or you will remove/destroy the pads. Clean
pads with alcohol. Apply solder to one of the end pads, and with the
tweasers allign the IC on the pads and tack it down. Check to be sure
that it is alligned properly and that pin 1 is where it is supposed
to be. Use SMT soldering flux with .010 dia solder. Apply the flux to
the leads and solder each pin. If you have a short between pins just
use solder wick to remove. Apply flux as needed. Use a magnifying
glass to check for opens and shorts. Clean with alcohol when you are
finished.
If you have a PC board with SMT components on it I would use that as
a practice board intill you get the hang of things. This method can
save you $$. I can swap out a BS2p40 IC in 10 minutes flat with this
technique. Poor Man's reflow is what I call it.
Jason
--- In basicstamps@yahoogroups.com, "Chris Loiacono \(E-mail\)"
<chris01@t...> wrote:
> I have been doing spring cleaning a bit early this year (too much
> junk...)and found a couple of Stamps that don't run or accept
programs.
> Does anyone offer repair services to replace compiler chips,
etc...or are
> these destined to the junk bin?
>
> Chris
swapping out the surface mount parts, you might want to take a look
at <http://www.zephyrtronics.com>. In particular, get ahold of some
of their low-melt solder and some liquid flux, the consistency of
honey. You heat the circuit board to about 150 degrees Celsius (300
Fahrenheit), which is safe for the components, and then you apply
flux to the pins along with a liberal amount of the low-melt solder,
which immediately liquifies. Leave it for 15 or 20 minutes, and the
metals will co-alloy and you can lift the chip right off the board
and then push the liquid alloy right off the board and clean the
shiny and smooth pads.
The Zephertronics hot air rework equipment is great, but expensive,
but you can still buy supplies fromt them without the equipment.
-- Tracy
>Chris,
>
>You can buy the surface mount interperter IC's from Parallax. It's
>just a matter of swapping out the IC to fix the stamp. When I smoked
>my BS2p40 IC I just ordered a BS2p40 interperter IC from Parallax for
>$18 and swapped it out. In a pinch you can use a heat gun set to 700
>F to 750 F. Cover the other parts of the stamp with aluminum tape to
>reflect the heat leaving the interperter IC exposed. With the heat
>gun on and about 1 to 2 inches from the IC, use a circular motion
>with the heat gun untill you see the solder on the IC leads get
>bright silver(molten solder). With the heat still applied pick the IC
>off with a decent pair of tweasers, being careful not to burn your
>hands. Wait for the stamp board to cool off and then remove the
>aluminum tape. Clean the pads off with solder wick, being careful not
>to use too much pressure or you will remove/destroy the pads. Clean
>pads with alcohol. Apply solder to one of the end pads, and with the
>tweasers allign the IC on the pads and tack it down. Check to be sure
>that it is alligned properly and that pin 1 is where it is supposed
>to be. Use SMT soldering flux with .010 dia solder. Apply the flux to
>the leads and solder each pin. If you have a short between pins just
>use solder wick to remove. Apply flux as needed. Use a magnifying
>glass to check for opens and shorts. Clean with alcohol when you are
>finished.
>
>If you have a PC board with SMT components on it I would use that as
>a practice board intill you get the hang of things. This method can
>save you $$. I can swap out a BS2p40 IC in 10 minutes flat with this
>technique. Poor Man's reflow is what I call it.
>
>Jason