Eberline ESP-1 - Page 62

NOTE
ә
Reinitializing
the
computer
геѕеіѕ
all
parameters
including
high-voltage
calibration.
Complete
recalibration
should
be
performed
before
putting
the
instrument
back
into
service.
(2)
Remove
batteries
and
lower
(amplifier/HV)
board
to
expose
the
microcomputer
board.
Check
all
the
integrated
circuits
(ICs)
for
proper
seating
in
their
sockets.
If
a
loose
IC
is
found,
replace
the
batteries
and
repeat
step
1
above.
If
the
problem
persists,
proceed
to
step
3.
(3)
This
leaves
the
following
possibilities:
(a)
Shorted
keypad
switch
or
test
connector.
(b)
CRI
open.
(c)
C2
shorted.
(d)
Al
or
ХІ
inoperative.
(e)
А2
inoperative.
(f)
A3
inoperative,
(g)
A4
inoperative.
(h)
Display
not
operating.
(i)
Damaged
PC
board
or
ribbon
cable(s).
c. Nonfunctioning Counter
A
nonfunctioning
counter
usually
results
because
either
the
counter
has
failed
or
the
counter
is
noisy.
NOTE
The
instrument
must
be
turned
OFF
and
back
ON
to
reset
an
"OVERRANGE"
condition.
An
"OVERRANGE"
indication
could
be
caused
by
an
incorrect
"DT"
setting
for
the
detector
in
use.
In
either
case,
first
determine
that
the
condition
is
not
caused
by
the
detector
or
cable.
The
best
way
to
do
this
is to
connect
a
known
good
detector
and
cable
and
then
check
the
operation.
Next,
remove
the
lower
board
so
its
components
arc
exposed.
Visually
inspect
for
loose
and/or
poorly
seated
components,
broken
wires,
broken
components,
etc.
ESPI.MAN/February
1992
.
5-13