Fluke 8024B - Page 68

8024B
4-11. PCB
4-12.
There
are
two
PCB
assemblies,
Main
and
Switch.
Use
the
following
procedure
to
remove
the
Main
PCB Assembly
from
the
case:
1. Complete the Calibration Adjustments access procedure.
2. Remove the screw from the shield covering the assembly.
3. Using your index finger, lift up the lower right-hand corner of the pcb until it is
free. Then pull the pcb to the right until it clears the shelf under the buttons.
4. Reassemble in the logical reverse order.
NOTE
When installing the pcb, route battery-clip wires behind the post on the left-
hand side of the bottom case. Also make sure that the removable plastic lip
located beneath the range switch pushbuttons is properly installed in the
bottom case and that the green power-switch cap is mounted on the power
switch,
4-13. DISPLAY ACCESS
4-14.
Refer
to
Figure
4-2
and
the
following
procedure
to
remove/replace
the
LCD
assembly.
1.
Remove
the
Main
PCB
Assembly
using
the
PCB
access
procedure.
2.
Place
your
thumbs
on
either
side
of
the
display
lens
and
carefully
push
the
lens
out
of
the
LCD
bracket.
3.
Turning
LCD
bracket
upside
down
gently
tap
into
your
palm,
LCD
shouldfall
out.
NOTE
When
installing
the
LCD
make
certain
that
its
flat
surface
is
facing
out
and
its
connector
pattern
is
on
top
of
and
makes
contact
with,
the
flexible
layered
connector.
4-15. LSI (U8) ACCESS
4-16.
Use
the
following
procedure
to
remove/replace
the
a/d
converter
and
display
driver IC, U8:
1. Remove the pcb assembly using the PCB access procedure.
2.
On
the
bottom
of
the
pcb
locate
and
remove
the
two
phillips-head
screws
from
the
display
assembly.
4-4