[Elecraft] Removing Resistor Packs

Wed Mar 24 16:54:00 2004

I've done it with a 10-pin resistor pack, but keep in mind that the most
expensive part you have is probably that PC board, considering the cost =
of
rebuilding a new one if you destroy the old one. So be "gentle" with it!

I was able to remove the RP without destroying the board using a =
hollow-tip
iron with a solder sucker attached like the popular Hakko that is often
mentioned on the reflector here. I doubt if it could be done otherwise
because it requires a good seal to the pad on the bottom of the board to
pull the air and solder down through the hole from the top side. You =
MIGHT
be able to get in there with your iron on the TOP side - holding the =
board
in a vise - to melt the solder while sucking from the bottom the moment =
it
melts.=20

So don't feel bad, Bill. I was writing the assembly procedure for the =
KX1
manual, installed RP5, took a picture (for Figure 4 in the manual) and =
was
sitting at the computer adding call-outs when I suddenly realized that =
the
last three digits weren't right.=20

What a "sinking feeling" indeed!=20

Ron AC7AC

-----Original Message-----
From: [email protected] =
[mailto:[email protected]]
On Behalf Of Bill Tippett
Sent: Wednesday, March 24, 2004 1:25 PM
To: [email protected]
Subject: [Elecraft] Removing Resistor Packs

	Well I just made my first major mistake!  I installed
RP2 in the RP3 slot (which is unused but in the same area
and also marked as a 10k on the RF board).  I've removed solder from the
bottom holes such that I can see the pins through the holes, but the =
pack
will not budge as I heat pins from the outside edge in and gently pull =
the
pack from the top.  I believe the problem is solder on the top side
underneath the pack body which I cannot remove.  Before I clip the pack =
off,
remove the pins and order a replacement, has anyone had success removing
resistor packs?  I only have solder wick and a hand-held solder sucker =
so
please don't get fancy on me.  ;-))