MODEL 1000 SEP 2005
2350 to 2350A CPU RETROFIT INSTRUCTIONS
F-3
(2) Locate the GC Controller's Terminal Board for Field Wiring (TB). The TB is attached to the
GC Controller's card cage assembly, facing the enclosure's front panel. (In the rack mount
Controller, the TB faces outward toward the rear of the enclosure.)
(3) Loosen the six screws that secure the TB. Then unplug the TB from its connections at the
back, top of the board.
(4) Lower the TB down and out of the way, held in place by its ground straps at the bottom of
the board. This exposes the Card Cage Assembly.
(5) Loosen the four screws that secure the Card Cage Assembly to the chassis. Then remove the
Card Cage Assembly away from its chassis mount so that it is easy to work on.
(6) Locate the System Interface and Driver board. It is mounted to the top of the Card Cage
Assembly.
(7) Remove all cables connected to the System Interface Board (P/N 3-2350-005, P/N 3-2350-
022, or P/N 3-2350-023).
(8) Remove the I/O48 board assembly (drawing BE-12973) and cables from the top slot of the
cage card assembly. This board is not used on the 2350A GC Controller.
(9) Remove the CPU Board assembly (drawing CE-19281) and cables from the second slot of
the card cage assembly. This board is not used on the 2350A GC Controller.
(10) Remove the DSPI/O board assembly (drawing CE-12976) and cables from the third slot of
the card cage assembly. This board is not used on the 2350A GC Controller.
(11) Remove any other optional boards such as memory expansion boards and associated cables.
These parts are not used on the 2350A GC Controller.
(12) Leave the Analog Board assembly (drawing BE-18044) with attached cable in the card cage.
This board is used on the 2350A basic configuration.
(13) Change the fuse in the inline fuse holder from 1 amp to the 2.5 amp, Slo-Blo fuse provided.
The fuse is located in the cable (P/N 2-3-2350-069) between the power supply and the
System Interface Board.
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