Mainboard:

The BIOS dumps of the PC-D mainboard and the harddisk controller are identical between the two PC-D's I own, I have included the second archive here for completeness' sake.

https://dl.dropboxusercontent.com/u/55419307/Siemens%20PC-D/Siemens%20PCD%20%231.rar

https://dl.dropboxusercontent.com/u/55419307/Siemens%20PC-D/Siemens%20PCD%20%232.rar

Mainboard layout: Servicehandbuch Teil 1, p.9, p.70ff, p.184ff (=> PCD translated p.18ff)

RAM: Servicehandbuch Teil 1, p.188f (PCD translated p.22)

Physical location of connectors: Servicehandbuch Teil 1, p.35

Bus pinout: Servicehandbuch Teil 1, p.78f, p.195ff

DMA Channel properties: Praxisbuch, p. 4

Interrupt controller: Servicehandbuch Teil 1, p.27

Interrupt table: Praxisbuch, p.11f, Servicehandbuch Teil 1, p.222

Memory map: Praxisbuch, p.10, Servicehandbuch Teil 1, p.209 (=> PCD translated p.23)

RTC: Servicehandbuch Teil 1, p.193

Speaker: Servicehandbuch Teil 1, p.194

LED error display: Servicehandbuch Teil 1, p.2ff (=> PCD translated p.1f); p.62

Self test, function of RESET and DEBUG switches in the front panel: Servicehandbuch Teil 1, p.61 (=> PCD translated p.3), p.190f

Internal ROM monitor: Servicehandbuch Teil 1, p.66 (=> PCD translated p.6)

Serial ports: Servicehandbuch Teil 1, p.201


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20