HEIDENHAIN TNC 306 Service Manual - Manual (Page 102)

SERVICE MANUAL TNC 306/360
Page 95
HEIDENHAIN Service
e) Loosen/remove the fixing screws
f) Lift out the PROCESSOR BOARD; exchange the EPROMs, if required
(see section 19.7). Insert the new board.
19.3.3 Mounting the PROCESSOR BOARD
The PROCESSOR BOARD is mounted in the reverse order that it was dismounted:
a) Insert and secure the PROCESSOR BOARD
b) Engage the connectors.
*
Observe that no connectors are switched!
c) Close the LOGIC UNIT and close the locks
d) Switch on the main switch
e) Read-in the machine tool data that have been backed up before the exchange
(machine parameters, PLC program, NC programs etc.)
f) Enter preset values and supplementary operating modes from the table in section
19.1.5 (before ref. mark traverse)
g) Carry out offset adjustment with code number (see section 16.5.1)
Exchange is now finished.
*
Note:
Send and store the boards only in the original packaging that
protects them from aquiring static charge.
Never use conventional plastics to wrap the boards in!