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GE AMX-II

GE AMX-II
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GENERAL
ELECTRIC
MEDICAL
SYSTEMS
AMX-II
X-RAY
UNIT
8-3179
SM
A0654E
Coliimator
Test
27-33
Chapter
4
Misalignment
of
edges
of
On
installation,
preventive
F-3382
Alignment;
Test
Set
F
Sec
5-6
Light
Field
and
X-Ray
Field
maintenance
calls,
and
when-
Light
Field
Chapter
5
shaii
not
exceed
1.8%
of
SID.
ever
repairing
or
replacing
to
X-Ray
collimator
or
x-ray
tube
unit.
Field
Collimaror
Test
27-33
Chapter
4
Field
size
indicators
shall
On
installation,
preventive
F-3382
Alignment;
Test
Set
F
Sec
5-6
agree
with
actual
field
maintenance
calls,
or
when-
Actual
vs
Chapter
5
size
within
1.8%
of
SID.
ever
repairing
or
replacing
Indicated
Sec
4-4
collimator.
X-Ray
Fieid
Inherent
Test
13
Chapter
4
Half
value
layer
of
useful
On
installation,
and
when-
F-3316
Filtration;
Sec
6-1
x-ray
beam
shall
not
be
less
ever
replacing
tube
unit,
F-3381
Diagnostic
than
2.3
mm
at
80
KVP.
insert,
collimator
mirror,
or
Source
other
absorption
between
Assembiv
Source
and
patient.
SEC.
2
TESTS
AND
ADJUSTMENTS
CAUTION:
ON
AMX-H
Units
it is
necessary
to
remove
x-ray
control
cover.
To
gain
access
to
the
six
screws
retaining
the
cover,
the
front
and
rear
panel
covers
must
be
removed
first.
With
x-ray
control
cover
removed,
extreme
safety
should
be
excersized
to
prevent
the
possibility
of
electrical
shock.
21
Adjust
Battery
Condition
Meter,
5M1
If
battery
was
recently
charged,
the
4A1 Board
shall
be
allowed
to
cool
before
starting
this
procedure.
Remove
cover and
open
Operators
Panel
and
cool
for
a
minimum
of
15
minutes.
Leave
cover
off
for
remainder
of
tests
and
adjustments.
With
6CB1
and
5S1
off,
connect
0.5K,
2
Watt
potentiometer
in
series
with
Gray
lead
from
3TB1-26.
3.
Connect
the
digital
voltmeter
across
4A
1-2
(+)
and
4A
1-11
(-).
Set
on
200-vdc
scale.
4.
Arrange
test
leads
so
that
Operator’s
Panel
can
be
closed
without
causing
shorts.
Close
Operator's
panel
and
mechanically
Zero
5M1.
5.
Open
Operator's
Panel.
Turn
6CB1
and
5S1
ON.
Adjust
0.5K
potentiometer
for
110+/-
.1
V
on
Digital
Voltmeter.
6.
Adjust
442R10
for
5M1
reading
on
black
mark
between
red
and green
bands.
Close
Operator’s
Panel
and
allow
unit
to
thermally
stabilize
for
5
minutes.
Repeat
steps
5
and
6
if
Digital
Voltmeter
on
5M1
readings
shift
during
the
5-minute
interval.
Always
check
5M1
reading
with
Operator's
panel
closed.
Turn
6CB1
and
5S1
OFF.
Disconnect
leads
and
0.5K
potentiometer.
Reconnect
Gray
lead
from
3TB1-26.
Check
X-Ray
Tube
Filament
Disconnect
7TB1-P1
and
7TB1-P2
at
the
HV
transformer
and
tape
the
ends
(230
v
will
appear-at
these
ends).
4-2

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