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.orgReceived on 2018-08-04 20:03:25
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