Service manual

2. TROUBLESHOOTING
Service Manual BSM-4100 2.9
Other Vital Sign Input Problems
Problem Possible Cause/Criteria Action
The connection cord is faulty. Replace the connection cord
with a new one.
The MP2 board is faulty if the connection cord is not
recognized at any multi-parameter sockets.
The MP3 board or MP2 board is faulty if the connection
cord is not recognized at the No. 3 multi-parameter
socket.
The instrument does
not recognize a
connection cord at a
multi-parameter
socket.
The MP1 board or MP2 board is faulty if the connection
cord is not recognized at the No. 1 or No. 2 multi-
parameter socket.
Replace the faulty board with a
new one.
The connection cable between the motherboard and DPU
board is disconnected or the MP2 board, motherboard or
DPU board is faulty if this message always appears even
after the instrument is turned off and on again.
Check the cable connection.
Replace the MP2 board, ECG
input block or DPU board with
a new one* if the cable
connection has no problem.
MPU MODULE
ERROR message is
displayed.
The MP2 board is faulty if this message sometimes
appears after the instrument is turned off and on again.
Replace the board with a new
one.
The EEPROM in the connector of the connection cord is
faulty if the cord connected to any multi-parameter
sockets displays this message.
Replace the connection cord
with a new one.
The MP3 board or MP2 board is faulty if the cord
connection to No. 3 multi-parameter socket only displays
this message.
MPU FAILURE
message is displayed.
The MP1 board or MP2 board is faulty if the cord
connection to No. 1 or No. 2 multi-parameter socket only
displays this message.
Replace the faulty board with a
new one.
Any input parameters
for the multi-
parameter socket
cannot be measured at
any multi-parameter
sockets.
The MP2 board is faulty if there is no error message on
the screen when the connection cord is connected to the
multi-parameter socket.
Replace the faulty board with a
new one.
The blood pressure transducer or connection cord is
faulty.
Replace the faulty blood
pressure transducer or
connection cord with a new
one.
The MP1 board or MP2 board is faulty if the blood
pressure cannot be measured at any multi-parameter
sockets or can be measured at one of them.
Replace the faulty board with a
new one.
The MP3 board, MP2 board or motherboard is faulty if
the blood pressure 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*.
Invasive blood
pressure cannot be
measured.
The MP1 board or MP2 board is faulty if the blood
pressure cannot be measured at the No. 1 and No. 2
multi-parameter sockets.
Replace the faulty board with a
new one.
The blood pressure transducer is faulty. Replace the faulty blood
pressure transducer with a new
one.
The MP1 board or MP2 board is faulty if the normal
transducer connected to each multi-parameter socket
through the connection cord displays this message or the
blood pressure can be measured at one of them.
Replace the faulty board with a
new one.
The MP3 board, MP1 board or motherboard is faulty if
the normal transducer connected to the No. 3 multi-
parameter socket only displays this message.
Replace the MP3 board, MP1
board or ECG input block with
a new one*.
CHECK SENSOR
message is displayed.
The MP1 board or MP2 board is faulty if the normal
transducer connected to the No. 1 or No. 2 multi-
parameter socket displays this message.
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”.