Re: A85: Expander SF


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Re: A85: Expander SF



How can you fix a broken linkport (in as much detail as possible)?  I need
mine to be fixed badly.

At 06:02 AM 8/31/97 GMT, you wrote:
>>[Jan Zumwalt]  I just went through the same experience and found out that
>>the problems is the 2.5mm jack used by TI MUST have a smooth barrel. The
>>common ones available at Radio Shack have a detent that helps hold the jack
>>in but WILL NOT MAKE CONTACT in the TI female socket. The TI female just
uses
>>raised bumps in the barrel for contacts while the walkman style has metal 
>>fingers that project down.
>>
>>I ended up cutting my TI link cord in half and splicing onto it. I am now
>>going to look in Newark or Allied for the proper jack. If I find the, I will
>>order two dozen or so for other people.
>>
>>--------\/\
>>   |   |   >  Walkman style jack     /---  Walkman contact
>>--------/\/                       \_/
>>
>>-----------                        _  _   TI contact
>>   |   |   >  TI style jack         \/
>>-----------
>
>
>This is a rumour that needs to be put to rest :).  The "walkman style"
>plug *will* make contact!  I've sold about 45 expanders which work and
>they all have that style plug.
>
>The problem occurs at the linkport itself.  After heavy use, the
>linkport jack starts to wear out, and the walkman-style plugs are the
>first ones to notice connection problems, whereas the TI plugs still
>work fine.  However, the TI style plugs will soon follow!  Opening
>your 85/92/whatever will quickly reveal that TI made a piece-O-shit
>linkport that fails very quickly after moderate to heavy use.  This is
>the main reason why many expanders I sold didn't work, because
>people's linkports were worn out.  They would take their expander to a
>friend's calculator and it would "mysteriously" work, but really it
>was because their friend had a less-used linkport.
>
>Basically the linkport is the #1 issue when it comes to expanders.
>Often times the only solution is complete linkport replacement.
>
>-Mel
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>-The TI-Memory Expansion Homepage
>-http://www.egr.msu.edu/~tsaimelv/expander.htm
>
>
---
Evil Jim
Viva La Mexico
<eviljim@writeme.com>
http://members.tripod.com/~eviljim/
I want to die in my sleep like my Grandfather, not screaming in pain like
the passengers in my car...


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