Service Administrative Support
4110/4112/4113/4114/4112A/4113A/4114A/
4116A
PROCESSOR
BATTERY
MOD
51340
The
NiCad
battery
on
the Processor
board
has
had
a
high
rate
of
failures.
This battery, p.n. 146-0040-00,
is
used
to
power
the
CMOS
RAM
which
stores the
user selectable operating parameters.
If
the battery
fails,
the set
up
para-
meter stored will
be
returned to
their
default conditions. This is indicated
by
a
message,
"Setup
Default Reset",
displayed
on
the screen
at
power-up.
The
replacement battery
is
a lithium
battery,
p.n. 146-0045-00, with a
life
rating of ten years,
-and
requires
no
charging
circuit.
The
charging
circuit
components
will
be
removed
with the old
NiCad
battery.
To
implement
Mod
51340,
refer
to Fig. 1
and
2 while
doing
the following steps:
C536
;
R525
RS2
U535
Fig 1.
Schematic
Diagram
·
lu2s
I
RI 1
lu12sl
-
er
u
Fig 2.
New
Component
Locations
-24-
October,
1883
laeue
31
1.
Remove
CR9,
CRlO,
CRll,
BTlO,
Rll.
2.
Add
new
CRlO
(152-0322-00) to
re-
place old
CRlO.
3.
Cut
run
on
surface of
board
between
Rll
and
CRll.
4. Insert
CRll
(152-0322-00)
where
Rll
was
removed.
Place
CRll
in
the
circuit
so
the
anode
is
to the bat-
tery
and
the cathode
is
connected
to
the
run
just
cut.
5.
Move
R9
(270
ohms)
to
bridge the
cut run. Attaching
one
leg to the
catho~e of
CRll
and
the
second
leg
to
the
pad
at the other
end
of the
cut run. This
270
ohm
resistor
will
now
be
referred to
as
Rll.
6. Ins
ta
11
the
new
battery to rep 1
ace
the old battery
which
was
removed.
Keep
the negative lead short. This
battery
is
slightly
longer than the
one
removed.
It
wi
11
need
to
be
installed
at
a
slight
angle for
clearance.
Use
the insulation to
cover the positive lead
which
will
need
to
loop
back
to the
pad
labeled with a plus.
The
components
to
make
this
modifica-
tion are in a
kit
(050-1792-00).
Upon
completion, the
672-XXXX-Ol
part
number
will
need
to
be
rolled to
672-XXXX-02.
w2
Issue 13-19
4113A
OPTION
9
045-0054-00
UPGRADE
KIT
The
4113A
Option
9
firmware
in
the
045-0054-00
kit
has
a
problem.
This
firmware
is the release 2
that
is
now
being shipped
in
the
Code
18
program.
The
release 2
firmware
exhibits the
problem
on
certain
files
when
doing
a
"copy
sc: to filename".
When
this
problem
occurs, the terminal
may
do
(ARTICLE
CONTINUED
ON
THE
NEXT
PAGE)
)
)
,
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