IBM 3270 Maintenance Manual page 512

Memory 200
This section explains removal and replacement
procedures for memory modules and memory
option adapters.
To determine where the memory failure is, go to
page 3-200-1 first. Then refer to the listing below
to go to the appropriate pages for instructions on
removing and replacing the failing memory
component.
• If the failing module is on the system board,
go to page 5-200-2 and follow the procedure
there to remove the failing module(s}.
• If the failing module is on the 64/256KB
Memory Expansion Option, go to page 5-200-6
and follow the procedure there to replace the
failing module(s}.
• If the failure is on either the 128KB
Memory-Printer Adapter or the 256KB
Memory Expansion Card, go
to
page 5-200-9
for instructions on removing the faulty
adapter.
October 1984 5-200-1