ZOLL R Series Monitor Defibrillator Rev J - Manual (Page 86)

R Series Service Manual
3-20 9650-0903-01 Rev. J
Removing the ECG Input Connector
Carefully lift the ECG Connector by tilting the rear of the
connector up first. Then carefully remove the cable
from the connector as shown, using a wooden stick.
Remove the connector from the chassis.
Note: After removing all connectors, clean them with compressed air.