CareFusion LTV 1200 Service Manual page 82

Symptoms
Can't unlock the
controls
LMV OFF is
displayed.
LMV LPPS OFF is
displayed.
LPPS OFF is
displayed.
f PEEP OFF is
displayed.
HI PEEP OFF is
displayed.
High f OFF is
displayed.
HI f/Vt OFF is
displayed.
LO f/Vt OFF is
displayed.
p/n 18603-001, Rev. J
Possible Causes
Rotary switch is
disconnected.
Defective rotary switch.
Defective main board.
HARD unlock method
selected under CTRL
.
UNLOCK
Low Minute Volume alarm
is turned off.
Low Minute Volume alarm
is turned off and the LPP
ALARM has been set to
VC/PC ONLY.
LPP ALARM has been set
to VC/PC ONLY.
The High Breath Rate and
High PEEP alarms are
turned off.
The High PEEP alarm is
turned off.
The High Breath Rate
alarm is turned off.
The SBT High f/Vt alarm is
turned off during the SBT
mode of ventilation.
The SBT Low f/Vt alarm is
turned off during the SBT
mode of ventilation.
®
LTV 1200, 1150, and 1100 Ventilator Service Manual
What to Do
Verify the rotary switch is properly
connected. If necessary, replace the rotary
switch assembly.
See Rotary Switch (Set Value Knob)
Assembly in Chapter 8 for instructions.
Replace the main board. See Main Board
Assembly in Chapter 8 for instructions.
Two unlock methods are available on the
®
LTV Ventilator: (See the LTV
1150, or 1100 Ventilator Operator's
Manual for an explanation of this feature.)
To unlock in EASY mode, press and
release the Control Lock button. To
unlock in HARD mode, press and hold
the Control Lock button for 3 seconds.
This is an informational message only
®
(See the LTV 1200, 1150, or 1100
Ventilator Operator's Manual for an
explanation of this feature).
This is an informational message only
®
(See the LTV 1200, 1150, or 1100
Ventilator Operator's Manual for an
explanation of this feature).
This is an informational message only
®
(See the LTV 1200, 1150, or 1100
Ventilator Operator's Manual for an
explanation of this feature).
This is an informational message only
®
(See the LTV 1200, 1150, or 1100
Ventilator Operator's Manual for an
explanation of this feature).
This is an informational message only
®
(See the LTV 1200, 1150, or 1100
Ventilator Operator's Manual for an
explanation of this feature).
This is an informational message only
®
(See the LTV 1200, 1150,or 1100
Ventilator Operator's Manual for an
explanation of this feature).
This is an informational message only
®
(See the LTV 1200, 1150, or 1100
Ventilator Operator's Manual for an
explanation of this feature).
This is an informational message only
®
(See the LTV 1200, 1150, or 1100
Ventilator Operator's Manual for an
explanation of this feature).
®
1200,
Page 7-5