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Re: Help with a R7903


 

Hi Paull,

This is bad news. First you would need to get hold of those pins and another
plastic housing. I don't know of any source for the pins. The housings can
be found much easier.

Second, you would almost have to completely tear down the scope so you would
have unfettered access to the interface board, front and back. That is not
for the faint of heart.

Third, and even harder, would be replacing the bad or missing pins. The
alignment is critical. I can't even imagine a way to get those pins in their
proper alignment since you would almost certainly have to insert, align, and
solder each one individually.

IIRC, the 7903 has special "floating" pins for the vertical signals since
they are such high frequency. If those pins are damaged their alignment
would probably be even more critical.

I hope someone else can offer a more encouraging answer.

Dennis Tillman W7PF

-----Original Message-----
From: TekScopes@... [mailto:TekScopes@...]
Sent: Friday, September 12, 2014 5:21 PM
To: TekScopes@...
Subject: [TekScopes] Help with a R7903

Hello, TekScopes, I am new to the group! I have a R7903
(B192xxx) that has a broken Main Interface connector, left bay. It is
difficult to see but it appears that the pins (gold plated contacts)
themselves are OK but the nylon housing is broken including several of the
fingers that hold the pins. The nylon contact cover is also damaged. Does
anyone have experience repairing the interface connector on this scope or
any other Tek that has a module interface board like the 7903? I have a
dead scope that can be a parts donor.

The R7903 is a great scope, truly an electronic marvel; I
would really like to fix the connector!

Thanks!
Paull

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