Heidenhain TNC 151A, TNC 151P, TNC 155A and TNC 155P Mounting Instructions and "Interface Circuit Control-Machine" (Operating and Programming Instructions).

Heidenhain TNC 151 Service Manual.

Heidenhain TNC 151 and TNC 155 Service Manual.

Heidenhain TNC 151 and TNC 155 "PILOT" - Troubleshooting Guide based on the Workpiece Drawing.

Heidenhain TNC 155A and TNC 155P Operating Manual.

Heidenhain TNC 310 Users Manual.

Heidenhain TNC 351 and TNC 355 Service Manual

Heidenhain TNC 351 and TNC 355 Service Manual

Heidenhain TNC Contouring Control: Special handbook with Features and Specifications for Machine Tool Manufacturers.