[Elecraft] Re: Yipes! Front Panel Board

Fri Nov 29 20:21:00 2002

I'm not sure if I made myself clear or not but I'll add this to my comments
about the lifting pads. Ok, now on the bottom of the board where it says R15
& R16 as I understood the directions that where the actual soldering is to
be done, which is what I did. That soldered just fine with nice pretty
joins, its the other side where the pads came off. The side where all the
switches are. Your not suppose to solder those 2 resistors on that side.

I'm using my trusty old Weller Soldering Station which has always done a
great job and far as I know never overheated. I don't think it was my
soldering (leaving iron on joint too long) as I use the same type soldering
station at work, and soldering is a major part of my job so I know how to
solder, been to schools on it and I'm certified at my workplace. I'm not
saying its my fault and I'm not saying it isn't. Just concerned that 3 out
of the 4 pads aint there no more. hi

Hope this makes things clear as mud. hi hi

Jerry - NR5A
----- Original Message -----
From: "Wayne Burdick" <[email protected]>
To: "Crashin J" <[email protected]>
Cc: "Elecraft" <[email protected]>
Sent: Friday, November 29, 2002 5:46 PM
Subject: [Elecraft] Re: Yipes! Front Panel Board

> Jerry, I'm having trouble imagining how the traces could have lifted
during
> normal installation of a resistor. Really excessive soldering iron
temperature
> is the only thing that comes to mind. Did you use a fine-tip,
> temperature-controlled iron? A PC-board defect (copper traces not firmly
adhered
> to the board) is theoretically possible, but I've never seen a case of
this myself.
>
> In any case, if the traces just lifted a very small amount and are still
making
> contact with the other circuits, you should be OK. If the traces are
broken,
> you'll need to add short jumper wires as needed between the leads of R15
and R16
> and the places they need to go, i.e. 5 and 12 of U1, and to ground and 5V.
Refer
> to the schematic.
>
> 73,
> Wayne
> N6KR
>
> Crashin J wrote:
> >
> > When I soldered R16 and R15 to the bottom of the Front Panel Board the
pads
> > on the other side lifted on the leads completely off the board. Am I in
> > trouble over this now? Do I keep on building? Any idea of what I did
wrong?
> > Why did they lift?
> >
> > Jerry - NR5A
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