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4349B
5.
Remove
the
A1
main
board
assembly
.
a.
Disconnect
the
following
cable
assemblies
from
the
A1
board.
i.
F
our
(or
two
for
Option
001)
cables
connected
to
the
UNKNOWN
connectors
.
ii.
The
cable
assembly
from
the
transformer
.
iii.
Two
cable
assemblies
from
the
dc-dc
converter
.
b.
Remove
the
four
studs
that
secure
the
A1
board
to
the
chassis
by
rotating
them
using
a
at
blade
screwdriver
.
c.
Remove
the
screws
that
secure
the
A1
board
to
the
chassis
.
d.
Remove
the
A1
board
from
the
chassis
.
Figure
B-4
shows
the
location
of
the
sockets
for
the
pull-up
resisters
(J13
and
J19)
and
the
switch
for
EXT
DCV2
voltage
setting
(SW1).
T
able
B-3
lists
the
location
of
the
pull-up
resisters
.
Handler
Interface
Installation
B-7
Summary of Contents for 4349B
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Page 42: ...4349B Figure 1 1 Power Cable Supplied 1 10 Getting Started ...
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Page 176: ...4349B Figure 8 9 10 Additional Error Measurement Time 400 msec 8 14 General Information ...
Page 212: ...4349B Figure B 3 Handler Interface Input Signal Diagram B 4 Handler Interface Installation ...
Page 216: ...4349B Figure B 4 A1 Main Board B 8 Handler Interface Installation ...
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