Cisco 3000 Series

Replacing
the Boot ROMs
EPROM removal tool
Eight
Flash
EPROMs
labeled U41
through
U48
Figure
5-7 illustrates the model
3202 card
layout
The card is oriented with the front
panel
LEDs at
the bottom of the illustration
Refer to this
figure
to locate the EPROMs on the
system
card
Installing
Flash
Memory
EPROMs
Follow these
steps
to install Flash
memory
EPROMs in the model 3202
Step
Locate the EPROMs labeled U41
through
U48 at the front of the unit
See
Figure
5-7
Note the orientation of the notches
on
the EPROMs to aid in
inserting
the
new
EPROMs
Do not
rely
on the EPROM labels for coirect
positioning
Step
Use
an
EPROM removal tool to
gently
remove
EPROMs U4l
through
U48 Set the
EPROMs aside and
keep
them in
case
you
need
to use
them
again
Step
Insert the
new
EPROMs in the sockets U41
through
U48 in the order
shown
in
Figure
5-7
being
careful not to bend
or
crush
any
of the
pins
To
straighten
out bent
pin
use
needlenose
pliers
Align
the notch in the
EPROM with
the notch in
the EPROM socket
ignoring
the orientation
of
the
label Be sure to insert the new EPROMs
using
the same
orientation
as
the EPROMs
you
are
replacing
Repacng
the Boot ROMs
To
replace
the boot ROM
software with new software
image
the
existing
boot ROMs must be
replaced
Tools and
Equipment Required
for
Replacing
the Boot ROMs
The
following
tools and
equipment are required
to
replace
the boot ROMs
EPROM extraction tool
or
small flat-blade screwdriver
Two boot ROMs
Upgrading
the Boot ROMs
Follow this
procedure
to
replace
the boot ROMs
Step
To
open
the chassis and
expose
the boot
ROMs
follow the
procedures
in the sections
Opening
the Chassis and
Removing
the
Power-Supply Tray Assembly
Step
Once the boot
ROMs
FW1 and
FW2 on
the
system
card
are
exposed
follow the
procedures
in this section
to
replace
the ROMs
Caution The correct
placement
of the boot
ROMs
is crucial If
improperly positioned
the
new
components
could be
damaged
when the
system
is
powered
on
Read
through
all of the instructions
before
proceeding
To
prevent damage
to
the
ROMs from ESD
when handling
the
system
and its
components
follow the ESD
procedures
described earlier
Also
be careful
not to
damage
or
scratch
the
printed
circuit card under the
ROMs
Step
Locate
the boot
ROMs
FW1 and FW2
See Figure 5-3 Figure
5-4
Figure
5-5
and
Figure 5-7
Maintenance 5-17