Re: 2031LP 75161 wiring question

From: William Levak <wlevak_at_SDF.ORG>
Date: Sat, 4 Aug 2018 17:48:36 +0000 (UTC)
Message-ID: <Pine.NEB.4.64.1808041746100.21582@sdf.lonestar.org>
On Sat, 4 Aug 2018, William Levak wrote:

>
> My copy shows it connected to pin 20.  However, it does not show pins 11, 12, 
> and 19.
>
> I did not find a data sheet. It does not appear to be the same as the TI 
> SN75161.

I opened up my 2031. The chips are TI SN75160N and SN75161AN. The only 
data sheet I could find was for the SN75161B, which apparently has a 
different pinout.

> On Sat, 4 Aug 2018, Jim Brain wrote:
>
>> On this portion of the 2031LP schematic:
>> 
>> ftp://www.zimmers.net/pub/cbm/schematics/drives/old/2031/page-12r.gif
>> 
>> The DC pin for the 75161 is not shown.  Does anyone know what it is 
>> connected to?
>> 
>> Jim
>> 
>> -- 
>> Jim Brain
>> brain@jbrain.com
>> www.jbrain.com
>> 
>> 
>
> wlevak@sdf.lonestar.org
> SDF Public Access UNIX System - http://sdf.lonestar.org

wlevak@sdf.lonestar.org
SDF Public Access UNIX System - http://sdf.lonestar.org
Received on 2018-08-04 20:03:25

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