Re: TI-86 Parallel Link Problems

To: CALC-TI@LISTS.PPP.TI.COM
Subject: Re: TI-86 Parallel Link Problems
From: Grant Stockly <gussie@ALASKA.NET>
Date: Fri, 7 Nov 1997 17:58:48 -0700
Reply-To: Grant Stockly <gussie@ALASKA.NET>

Check the diection of the diodes.  This is vey impotant for operation.  Do
you have a high quality plug?  I bought a "high quality digital sound" plug
and it works fine.  Even touching the two wires from the calc and computer
will generate errors!

Grant Stockly

>JL279 wrote:
>>
>> Please help:
>> My link isn't working...
>> On the calc. end, I have a 3/8" stereo plug, plugged into a 3/8" to 1/8"
>>  reducing plug.  On the computer end I soldered the diodes into the correct
>>  pins, then soldered the other end of the diodes to the wires coming from the
>>  calc. end.  I then realized that I had to connect pins 12 and 13 to pins 2
>and
>>  3.  So, I cut a couple of wires and connected the corresponding pins.  My
>>  ground is correct...pin 22, or at least I think it's correct.  I have tried
>>  switching the two wires on my calc end, with no luck.
>>
>> Any help would be greatly appreciated.
>>
>> Jim
>> JL279
>You could stretch your ground (pin 24) from pin 18 - 25,
>I've heard that it makes it more reliable.
>Use a test program (included in CAL)
>If the test fail, the error lies (most likeley) in the computer
>end, bad diodes, wires touching (use insulation tape) e.t.c
>If you pass the test the error is in the calculator end.
>I didn't quit get what you made the calc end out of,
>but have you tried 2.5mm stereo socket + calc-calc cable?
>JTK