6
6
Bad
Bad contrast
contrast // LCD
LCD fading
fading // LCD
LCD flushed
flushed
Be
Be sure
sure to
to set
set units
units display
display contrast
contrast to
to the
the default
default 50%
50% before
before examining.
examining.
Check
Check termperature
termperature readings,
readings, if
if it
it displays
displays 0
0 or
or
‐‐
‐‐
,, the
the fault
fault is
is always
always in
in the
the pressure
pressure sensor.
sensor.
Extreme
Extreme temperature
temperature change
change will
will cause
cause the
the display
display to
to dim
dim and
and darken,
darken, make
make sure
sure to
to ask
ask the
the
customer
customer if
if the
the unit
unit is
is being
being kept
kept at
at proper
proper operating
operating temperatures.
temperatures. Wearing
Wearing the
the unit
unit externally,
externally,
or
or over
over a
a jacket
jacket might
might cause
cause these
these issues.
issues.
Possible
Possible Fault
Fault
Action
Action
How
How to
to report
report
Incorrect settings of
Incorrect settings of
the contrast
the contrast
Set the contrast
Set the contrast
in service menu
in service menu
Unit > No fault
Unit > No fault
Faulty
Faulty LCD
LCD
Replace
Replace LCD
LCD
Display
Display >
> Defective
Defective Material
Material /
/ Component
Component
Faulty Pressure
Faulty Pressure
Sensor
Sensor
Replace
Replace
Pressure Sensor
Pressure Sensor
Sensor Pressure > Defective Material / Component
Sensor Pressure > Defective Material / Component
Back
Back light
light doesn’t
doesn’t work
work
Check
Check the
the backlight
backlight brightness
brightness setting,
setting, the
the unit
unit will
will sometimes
sometimes not
not turn
turn the
the backlight
backlight on
on if
if it
it is
is set
set
to
to the
the lowest
lowest possible
possible settings.
settings.
Possible
Possible Fault
Fault
Action
Action
How
How to
to report
report
Incorrect setting of
Incorrect setting of
the backlight
the backlight
brightness
brightness
Adjust the
Adjust the
brightness in
brightness in
general settings
general settings
Unit > No fault
Unit > No fault
Faulty
Faulty LCD
LCD
Replace
Replace LCD
LCD
Display
Display >
> Defective
Defective Material
Material /
/ Component
Component
Display Flex
Display Flex
Connector loose
Connector loose
Install flex
Install flex
connector
connector
Display > Defective Assembly
Display > Defective Assembly
No
No sound
sound
Make
Make sure
sure to
to check
check the
the device
device settings
settings for
for device
device sounds.
sounds.
Possible
Possible Fault
Fault
Action
Action
How
How to
to report
report
Faulty buzzer contact
Faulty buzzer contact
pins
pins
Replace the
Replace the
buzzer contact
buzzer contact
pins
pins
Spring > Defective assembly
Spring > Defective assembly
Resets
Resets
Device
Device clearly
clearly resets
resets from
from normal
normal usage,
usage, and
and bumps
bumps of
of the
the unit.
unit.
See
See energy
energy consumption
consumption test
test in
in service
service tester
tester manual
manual (test
(test 5
5 –
– battery
battery gauge)
gauge)
Possible
Possible Fault
Fault
Action
Action
How
How to
to report
report
Faulty battery
Faulty battery
Replace the
Replace the
battery
battery
Battery > Defective Material /
Battery > Defective Material / Component
Component
Connector of the
Connector of the
battery is faulty
battery is faulty
Replace the
Replace the
battery or
battery or
Service Module
Service Module
Contact, battery > Cracked / Cut
Contact, battery > Cracked / Cut
Unit is suffering from
Unit is suffering from
a ESD shock
a ESD shock
Replace for a
Replace for a
Service Module
Service Module
Contact, battery > Cracked / Cut
Contact, battery > Cracked / Cut
Connector of the
Connector of the
PCBA is damaged
PCBA is damaged
Replace for a
Replace for a
Service Module
Service Module
Battery > Defective assembly
Battery > Defective assembly
Battery connector is
Battery connector is
not attached
not attached
Attach the cable
Attach the cable
to the connector
to the connector
Contact battery > Defective assembled
Contact battery > Defective assembled