E Series Service Manual
2-2
9650-1450-01 Rev. D
Troubleshooting
The following tables show the most common troubleshooting issues and their solutions.
First, attempt to solve the problem with “Recommended User Action.” If these steps do not solve the problem, follow the steps listed in the
“Recommended Technical Action” column.
Reported Problem Recommended User Action Recommended Technical Action
ECG LEAD OFF message
displays.
(3, 5, 12 lead cable)
• Check preparation of ECG electrode site by cleaning the site, lightly
abrading the patient’s skin and/or clipping the patient’s hair at the
electrode site.
• If electrode gels are dry, replace electrodes with new ones from a
freshly opened package.
• Verify that all leads are attached.
• Set monitor to another lead.
• Verify that the electrodes have not exceeded their expiration date.
• Try to reproduce the problem using a simulator.
• Inspect the ECG cables looking for corrosion or
broken connector pins.
• Check the cable for intermittent connections by
flexing the cable at the yoke and snap
connectors.
• Check the cable connection to the defibrillator.
• Inspect the ECG input connector and its pins.
Replace it, if necessary.
• Inspect the ECG cable connection to the
system board.
• Inspect the system board ECG shielding.
• Remove and replace the system board.
V LEADS OFF message
displays.
• If the user is not using V leads, attach V lead connector terminator
plug to the cable’s V lead connector.
• If a V1 lead wire metal snap comes in contact with the patient’s skin,
then the system will show all V leads as OFF.
• Remove V1 leads and others away from the patient. Turn off the unit
and wait ten seconds before turning it back on.
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