Service manual

2. TROUBLESHOOTING
2.12 Service Manual BSM-4100
ECG/BP Output Problems
Problem Possible Cause/Criteria Action
The ECG/BP output cable is faulty. Replace the ECG/BP output cable
with a new one.
The ECG and HT signals do not output without
ECG measurement.
Measure the ECG.
The BP signal is not output if the blood
pressure is measured at the No. 2 or No. 3
multi-parameter sockets.
Measure the invasive blood pressure
at the No. 1 multi-parameter socket.
The connection cable between the DPU board
and ECG RESP1 board is disconnected if the
ECG, HT and BP are not output.
Check the connection.
The instrument does not
output the ECG, HT
(heart rate) or BP signal
from the ECG/BP OUT
socket.
The DPU board or ECG RESP1 board is faulty
if one of the three signals (ECG, HT and BP) is
not output.
Replace the DPU board or ECG input
block with a new one*.
The ECG or BP
waveform from the
ECG/BP OUT socket is
wrong.
The DPU board is faulty if the ECG or BP
waveform amplitude is wrong at the ECG/BP
OUT socket but the ECG and invasive blood
pressure waveforms are correctly displayed on
the screen.
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”.