Siemens Servo Screen 390 Service Manual page 33

Servo Screen 390
E382 E394E 061 01 02 02
Replacing the internal
memory
Before performing this service action, read
the sections "General" and "Handling PC
boards" in chapter 3, "Disassembly and
assembly".
Note – This procedure and illustration shows
SIMM chip on PC 1662. The board PC 1835
is equipped with a different type of SIMM
chip but the replacement procedure is still
the same. PC 1835 is also prepared for and
can, in the future, be equipped with SIMM
chips mounted on the rear side of the PC
board. If so, the PC board does not have to
be removed when replacing the internal
memory.
• Remove the PC boards as described in
chapter 3, "Disassembly and assembly".
• Remove the old SIMM chip (1) mounted
on PC 1662/PC 1835.
• Mount the new SIMM chip into the
socket.
1
• Assemble the Servo Screen 390 as
described in chapter 3, "Disassembly and
assembly".
The internal memory is now replaced.
Perform a Functional check according to the
instructions in the Operating Manual.
Siemens-Elema AB
4. Service procedures
33
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