12 Performance Verification
YM6000 Service Manual
System
Tests
The
monitor
must
be
placed
in
the
service
menu.
For
a
detailed
explanation
to
access
the
service
menu,
refer
to
Service
Menu
and
Factory
Default
Settings
section
.
1.
Rotate
the
trim
knob
to
select
System
Test
in
the
service
menu,
and
then
press
the
trim
knob.
LCD
Test
This
tests
the
LCD
display.
1.
Select
LCD
Test
in
the
system
test.
2.
The
screen
color
will
change
over
the
following
sequence:
Red
Æ
Green
Æ
Blue
Æ
White
Æ
Black
…
every
two
seconds
3.
After
testing
the
test,
press
trim
knob
twice
to
exit.
Pass/Fail
Results
When
the
color
of
the
test
screen
changes
in
the
order
from
Red,
Green,
Blue,
White
to
Black,
the
LCD
display
is
in
a
normal
state.
Alarm
Audible
Test
This
tests
the
alarm
tones
by
displaying
the
level
of
the
alarm
tone
on
the
screen.
Figure
5.
Alarm
Audible
Test
1.
Select
Alarm
Audible
Test
in
the
system
test.
2.
The
level
of
the
alarm
tone
will
appear
on
the
screen
as
the
alarm
tone
sounds.
Then,
the
level
goes
up
gradually.
When
the
tone
reaches
the
maximum
level
8,
it
returns
to
the
minimum
level
1.
3.
After
finishing
the
test,
press
the
trim
knob
to
select
Cancel
.
The
menu
box
will
disappear.
Pass/Fail
Results
When
the
alarm
tone
changes
to
eight
steps,
the
alarm
tone
is
in
a
normal
state.
Summary of Contents for YM6000
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