Hio Jim, the 4031 schematics, which should be the same for the digital part, shows that pin 11 is connected to +5V. I will upload them to zimmers asap. Christian Am 04.08.2018 um 08:11 schrieb Jim Brain: > 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 > -- Christian Dirks Toast_r@Idealine.info Vorster Str. 66 47918 Tönsivorst 2. Stellv. Vorsitzender Verein zum Erhalt klassischer Computer e.V. http://www.classic-computing.de/
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