CareFusion LTV 1200 Service Manual page 119

Symptoms
Leak Test - Hi and
Low Flow transducer
ports (in Chapter 6 –
Calibration)
O Leak Test (in
2
Chapter 6 –
Calibration)
Vent Inop Alarm Test
Audible alarm too soft.
Vent Inop Alarm Test
Alarm does not sound.
Vent Inop Alarm Test
LED portion of Vent
Inop Alarm test fails.
Vent Inop Alarm Test
Vent Inop alarm
audible tone and/or
LED did not last 15
seconds (fail).
Vent Inop Alarm Test
Vent Inop alarm tone
and/or LED fails test.
Vent Inop Alarm Test
Confirming audible
chirp does not sound
WDOG Test
Vent does not reset
when watchdog test is
performed.
Page 7-42
Possible Causes
Leaky or disconnected
internal tubing.
Solenoid manifold mal-
functioning
O
Malfunctioning Blender
2
Alarm sounder blocked.
Alarm sounder blocked.
Sounder fails to sound.
Power PCBA does not drive
sounder.
Vent Inop LED fails to
illuminate.
Power PCBA does not drive
Vent Inop LED.
Power PCBA is defective.
Unknown
Audible alarm did not sound
long enough before test
was terminated.
Defective power board.
Defective main board.
®
LTV 1200, 1150, and 1100 Ventilator Service Manual
What to Do
Check tubing connections. Check for leaks
in tubing. Replace damaged tubing.
Reconnect as necessary.
Replace Solenoid Manifold.
O
Replace Blender
2
Check the alarm sounder opening in the
right side of the ventilator to verify the
opening is not blocked.
Check the alarm sounder opening in the
right side of the ventilator to verify the
opening is not blocked.
Replace sounder. (See Alarm Sounder
Assembly in Chapter 8 for instructions)
Replace Power PCBA. (See Power Board
Assembly in Chapter 8 for instructions)
Replace Main PCBA. (See Main Board
Assembly in Chapter 8 for instructions)
Replace Power PCBA. (See Power Board
Assembly in Chapter 8 for instructions)
Replace Power PCBA. (See Power Board
Assembly in Chapter 8 for instructions)
Discontinue use of the ventilator and
contact CareFusion for information.
Repeat the Vent Inop Alarm Test and allow
audible alarm to sound for at least 15
seconds before pushing Silence Reset.
(See Vent Inop Alarm Test in Chapter 2)
Replace Power PCBA. (See Power Board
Assembly in Chapter 8 for instructions)
Replace the main board. See Main Board
Assembly in Chapter 8 for instructions.
p/n 18603-001, Rev. J