HEIDENHAIN TNC 415 (259 9x0) Service Manual - Manual (Page 166)

SERVICE MANUAL TNC 415B/425
Page 161
Issue: 20.08.95
21.5 Exchanging the PLC Graphics Board
21.5.1 Observe the exchange instructions in section 21.1!
21.5.2 Dismounting the PLC Graphics Board
a) Switch off the main switch of the machine tool.
b) Disengage the connectors on the PLC graphics board.
c) Undo the lock and open the logic unit.
Undo lock
PLC graphics board
d) Disengage internal connectors.