Joe,

Are you tinning the pins?00 These type of connectors have a fair
amount of metal acting as a heat sink. Tinning the pins prior to
assembly will solve your problem.

David Douthit
Manager
LoCan


On Nov 14, 2005, at 11:15 AM, Kane, Joseph E (US SSA) wrote:

> MIL-C-38999 covers the round connectors that stick out
> of the front of our boxes and let them communicate with
> the airplane.  The outer metal shells are olive drab iridite
> over cad plate, and they mate together with a twist/lock
> collar.
>
> When the suspect solder joint was touched with an iron and some
> Soder Wick, the whole thing disappeared.  There appeared to
> be good wetting to the lead and the pad, but very little
> flow up into the barrel.  Sorry, I don't have a picture.
>
> -Joe
>
> -----Original Message-----
> From: [log in to unmask] [mailto:[log in to unmask]]
> Sent: Monday, November 14, 2005 12:46 PM
> To: [log in to unmask]; Kane, Joseph E (US SSA)
> Subject: RE: [TN] Agilent 5DX Service
>
>
> I am not familiar with the P/N 38999 connector yet you speak of a
> spacer
> which stirs the mind.   Can you share a photo of the animal you are
> talking about and the spacer application with vertical fill anomaly.
>
> Victor,
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Kane, Joseph E (US
> SSA)
> Sent: Monday, November 14, 2005 10:47 AM
> To: [log in to unmask]
> Subject: [TN] Agilent 5DX Service
>
> One of our boards has a number of 38999 connectors, with
> connections on
> the top side hidden by a spacer.  We've had one SJ failure because
> of inadequate solder fill up through the PTH.  We'd like to determine
> whether this is an isolated problem, or whether the spacer might be
> impeding solder flow.  Of course, we don't have any boards to
> sacrifice,
> and we can't see anything with direct transmission x-ray because the
> connector is in the way.
>
> Anyone know of a lab somewhere nearby that offers scan beam
> laminography service?
>
> Joe Kane
> BAE Systems
> Johnson City, NY
>
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