Exchanging the tnc 407 processor board, 6 exchanging the tnc 407 processor board – HEIDENHAIN TNC 407 (243 020) Service Manual User Manual
Page 121
31-o
SERVICE MANUAL TNC
Issue:
01.09.1995
Page 101
19.6 Exchanging the TNC 407 Processor Board
MO&Protection, Software, Data Backup and
of the Cables
Dismounting the Processor Board
a)
Switch off the main switch at the machine tool.
Loosen the connectors at the processor board
to X6, X12
(Pin layout: see section 51
Undo the lock and open the logic unit.
Undo
Disengage internal connectors
(plug-type
is disengaged automatically)
x21 to X23).
Processor board TNC 407
Press
spring
to open
and pull out the
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