..
.
Chapter
3
Fault
Diagnosis
and
Check
Procedures
SCHILLER
AT-i
3-Channel
ECG
Unit
SERVICE
HANDBOOK
Issue
3
Sevrember
I999
i
General
Check
Procedures
The
procedure detailed here
is
a
general confidence check
of
the
unit after
an
internal module
or
boardhas beenreplaced Itis not afullfunctional test(whichcanon1y
becaniedoutwithdedicated
equipment
in
the
factory)
but
is
intended
to
provide
a
general confidence check in
all
the major
AT-
1
functional
areas.
The
insmctions given here are guides
to
the
basic
functions. Emore operating
information
is
required (general settings, comprehensive menu guides etC.j please refer to
the
relevant User
Manual for
the
software
version
applicable.
I
To
carry
out
the
general
AT-1
functional check procedure, proceed
as
follows:
1.
Connect
mains
power
to
the
unit
and ensure
that
the
green
mains
LED
lights.
2.
Switch
the
unit
on
by pressing the
ON
key
on
the keyboard. Ensure that
the
LED
lights
flash
for a few seconds
3.
Carry
out
the
Printer Check detailed
on
the
next page.
4.
Connect
an ECG
simulator to
the ECG connector
on
the side panel and switch on.
5.
Press the
MAN START
key and ensure that
the
three
indicated leads are printed and are
of
good
quality.
6.
Press the
AUTO
START
key and wait approximately
10
seconds for
the
printout
to
commence. Ensure that the printout is accurate and of good
quality.
7.
Switch the unit
off
and leave connected to the
mains
supply for
10
hours
or more
to
charge
the
battery.
8.
Disconnect
the
mains and
switch
the
unit on. Ensure that
the
Battery
LED
is
lit.
Run
the
unit
on
battery power for approximately
an
hour. Ensure that the battery
LED
flashes when
the
battery
has
limited capacity (not before
45
minutes).
Page
3.4
To Next Page