Service manual

5. MAINTENANCE
5.2 Service Manual CNS-9701
Item Check Countermeasure against negative result
Screen position Check that the upper, lower, right and left
edges of the screen meet the corresponding
edges of the display area.
If the display position of the screen is not
acceptable and the VL-971R display unit is used,
perform the automatic adjustment. Refer to
Section 6 "Adjustment".
First screen after
power-on
Check that the All Bed screen appears when
the main unit is turned on.
Remove the cause if the All Bed screen does not
appear.
Display
External and Connection
Item Check Countermeasure against negative result
Dust on the fans Check that there is no dust at the fan on the
rear of the main unit and in the power supply
unit.
If the fans get dusty, remove the dust not only
fromthefansbutalsofromtheinsideofthe
main unit.
Crack or damage Check that there is no crack and damage on
each unit and peripheral accessories.
If there is a crack or damage, replace the
cracked or damaged part with a new one.
Damaged switch or
switch cover
Check that there is no physically damaged
switch and switch cover.
If any switch or switch cover is damaged,
replace it with a new one.
Protection key
connection
Check that the protection key is firmly
connected to the main unit through the
connection cable.
If there is poor contact between the protection
key and cable or between the cable and main
unit, disconnect and firmly re-connect them.
Overall connection
Check that each connection of the main unit,
mouse, keyboard, display unit and recorder
unit is tight.
If the connection of the mouse or keyboard is
loose or disconnected from the main unit, turn
off the main unit according to the shut down
procedure described in the operator's manual
and firmly connect the mouse and keyboard to
the main unit. Otherwise, there can be a damage
on the main unit, mouse or keyboard by
connecting them again while the power is turned
on.
Power lamp Check that the power lamp on the front panel
is lit when turning on the main unit.
If the power lamp does not light, remove the
cause.
Sound
Item Check Countermeasure against negative result
QRS and alarm
sounds
Check that the QRS sound and alarm sound
volume can be adjusted on the System Setup
screen.
If not, remove the cause.
Click sound Check that a click sound is generated from
themainunitwhentouchingakeyonthe
touch screen.
If not, remove the cause.