Comen CM300 - Abnormal Screen Display; No ECG Output from Certain Lead; ECG Disturbance

Shenzhen Comen Medical Instruments co., ltd.
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not connect well.
is reliably connected
System failure
replace a main board
LCD screen defective
replace a LCD screen
4.5.4 Abnormal screen display
Symptoms
Possible Cause
Correction Action
Abnormal screen
display
LCD adapter board or LCD cable not
connect well
Check LCD adapter board or LCD cable
connect well
LCD adapter board or LCD cable
defective
replace a LCD adapter board or LCD cable
LCD screen defective
replace a new LCD screen
4.5.5 No ECG output from certain lead.
Symptoms
Possible Cause
Correction Action
No ECG output from
certain lead.
Identical electrode falls off or has
no reliable linked with patient body
re-install the electrode or paste some
water or conductive ointment at the
contact position
Cable has been broken due to long
time use or unit aging/clamp
electrodes or chest bulbs lose
flexibility or weak connection
The cable and electrode of the same
model shall be used to replace the old one.
ECG board and main board cable
didn’t connect well.
Check the internal wire between ECG
board and main board connect well.
ECG board defective
Change the new ECG board
Main board defective
Change the new main board
4.5.6 ECG disturbance.
Symptoms
Possible Cause
Correction Action