Service manual

2. TROUBLESHOOTING
2.10 Service Manual BSM-4100
Problem Possible Cause/Criteria Action
The blood pressure transducer is faulty. Replace the faulty blood pressure
transducer with a new one.
The MP2 board or MP1 board is faulty if the blood
pressure data is wrong at all the multi-parameter sockets
and temperature, FiO
2
and respiration rate (thermistor
method) are not wrong at any multi-parameter sockets.
The MP2 board is faulty if not only the blood pressure
data but also temperature, FiO
2
and respiration rate are
wrong at all the multi-parameter sockets.
The MP1 board is faulty if the blood pressure data is
wrong at the No. 1 and No. 2 multi-parameter sockets.
IBP measurement
data on the screen
is wrong.
The MP3 board is faulty if the blood pressure data is
wrong at the No. 3 multi-parameter socket only.
Replace the faulty board with a
new one.
The thermistor probe is faulty. Replace the faulty probe with a
new one.
The MP2 board is faulty if the T1 and T2 temperatures
cannot be measured but thermistor method respiration
and FiO
2
can be measured at all the multi-parameter
sockets or the temperatures can be measured at one of
the multi-parameter sockets.
The MP1 board is faulty if the T1 and T2 temperatures
and thermistor method respiration cannot be measured
at any multi-parameter sockets.
Replace the faulty board with a
new one.
The MP3 board, MP2 board or motherboard is faulty if
the T1 and T2 temperatures cannot be measured at the
No. 3 multi-parameter socket only.
Replace the MP3 board, MP2
board or ECG input block with a
new one*.
Temperature cannot
be measured.
The MP1 board or MP2 board is faulty if the T1 and T2
temperatures cannot be measured at the No. 1 and No. 2
multi-parameter sockets.
Replace the faulty board with a
new one.
The thermistor probe is faulty. Replace the faulty probe with a
new one.
Temperature
measurement data
on the screen is
wrong.
The MP2 board is faulty if the T1 and T2 temperatures
are wrong but thermistor method respiration and FiO2
data are not wrong at any multi-parameter sockets.
Replace the faulty board with a
new one.
The respiration pickup (thermistor probe) is faulty. Replace the faulty pickup with a
new one.
The MP1 board or MP2 board is faulty if the thermistor
method respiration cannot be measured but the T2
temperature can be measured at all the multi-parameter
sockets or the respiration can be measured at one of the
multi-parameter sockets.
The MP1 board is faulty if the thermistor method
respiration and T1 and T2 temperatures cannot be
measured at any multi-parameter sockets.
Replace the faulty board with a
new one.
The MP3 board, MP1 board or motherboard is faulty if
the thermistor method respiration cannot be measured at
the No. 3 multi-parameter socket only.
Replace the MP3 board, MP1
board or ECG input block with a
new one*.
Respiration by
thermistor method
cannot be
measured.
The MP1 board or MP2 board is faulty if the thermistor
method respiration cannot be measured at the No. 1 and
No. 2 multi-parameter sockets.
Replace the faulty board with a
new one.
The respiration pickup (thermistor probe) is faulty. Replace the faulty pickup with a
new one.
Thermistor method
respiration
waveform has
something wrong
on the screen.
The MP1 board or MP2 board is faulty if the respiration
rate is wrong but T2 temperature data is not wrong at
any multi-parameter sockets.
Replace the faulty board with a
new one.
* ECG input block repair kit is required when one of the ECG RESP1 board, ECG RESP2 board, ECG RESP3 board
and motherboard has a failure. Refer to “Board Compatibility” in Section10 “Internal Switch Setting and Board
Compatibility”.