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E331 .E2501.061.21.02.02
System SIRECUST 1280/1281
Bedside Monitor - Service Manual
Remove the Z-Amp Board follow-
ing
the
procedure
outlined
in
Section 4.11.1.
Press the locking tabs in on each
board mount (A), and carefully lift
on the Battery Board or Memory
Backup Board to free it from the
Motherboard.
NOTE:
The connector interfacing the
Battery
Board
or
Memory
Backup
Board to the Motherboard automatically
disconnects when the board is
lifted off
the Motherboard.
NOTE:
For monitors equipped with a
Battery
Board,
unplug
harness
con-
nector X1
(3-prong
connector)
from
JP1
on
the
component
side
of the
board
near the
rear
of the
monitor
chassis.
Installing the Battery Board or
Memory Backup Board
Position
the
board
to align
the
mounting
holes with the locking
mounts
(A) on the Motherboard,
and board connector X2 with the
pins
of
the
connector
on
the
Motherboard.
Carefully
press
down
on
the
Battery Board or Memory Backup
Board to seat it on the mounts
and
complete
the interface with
the Motherboard.
NOTE:
Reconnect
battery
harness
connector X1 (3-prong) to JP1 on the
Battery
Board
if
the
monitor
is
equipped with a nicad battery.
Reinstail the Z-Amp Board follow-
ing
the
procedure
outlined
in
Section 4.11.2.
Complete the procedure outlined
in Section
4.10.2. to reinstall the
Deflection Board
and reassemble
the monitor.
4.14.
Nicad Battery Subassembly
NOTE:
Some
monitors use a nicad
battery connected to the Battery Board,
to
provide
energy
for
the
memory
backup
circuitry.
The
battery
is
a
separate subassembly mounted on the
chassis
near
the
Operator
Interface
Panel,
with
a two-wire
harness
that
plugs into JP1 on the Battery Board.
_Refer to Figure 4-9.
4.14.1.
4.14.2.
Removing the Nicad Battery
Subassembly
Remove
the
outer
case
of the
monitor
following
the
procedure
outlined in Chapter 4, introduction
and Section 4.1.1.
Remove the Deflection Board fol-
lowing the procedure outlined in
Section 4.10.1.
Remove the Curve Board, Display
Processor
Board,
Memory
Exten-
sion
Board,
and
Clock
Board,
Master
Option
Board,
or
4-Ch
Analog
Option
Board
using
procedures
outlined
in Sections
4.4.1, 4.6.1, 4.8.1, and 4.9.1.
NOTE:
Note the dress of the battery
wiring
harness
for
reference
when
reinstalling
or
replacing
the
battery
subassembly.
Slide the nicad battery out of the
battery
holder,
and
carefully
remove the battery subassembly
from the monitor.
Installing the Nicad Battery
Subassembly
Position
the
nicad
battery
sub-
assembly
on the bottom
of the
chassis
near
the
battery
holder,
and
connect
the
wire
harness
connector to JP1
on the Battery
Board.
Page 4-17
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