HEIDENHAIN TNC 407 (243 020) Service Manual - Manual (Page 120)

D-83292
31-o
SERVICE MANUAL TNC
Issue:
01.09.1995
Page 100
Loosen/remove the fixing screws
Loosen fixing screws
Remove
knurled screw
E
knurled screw
Loosen
fixing screws
Lift out the PLC and graphics board.
Insert the new board.
Mounting the PLC and Graphics Board
The PLC and graphics board is mounted in the reverse order that is was dismounted,
a) Insert and secure the CLP board.
Engage the connectors.
Observe that no connectors are switched!
Close the logic unit and close the lock.
Switch on the main switch.
Offset adjustment with code number (see section 16.5).
Exchange is now finished.
NOTE:
Send and store the boards only in the
original packaging that protects them from acquiring
static charge. Never use conventional plastics to wrap the boards in.