Cleaning; Amplifier Troubleshooting - GE Cardiolab II Plus Service Manual

Appendix A – Maintenance and Troubleshooting

Cleaning

Amplifier Troubleshooting

A-4
Do not use organic solvents, ammonia based solutions, or abrasive
cleaning agents which may damage equipment surfaces.
Clean the exterior surfaces with a clean, soft cloth and a mild
dishwashing detergent diluted in water.
Wring the excess water from the cloth. Avoid contact with open
vents, plugs, or connectors.
Do not spray or spill fluid directly on the amplifier.
Dry the surfaces with a clean cloth or paper towel.
See the How to Reach Us section in the front of this manual for
information on contacting GE Medical Systems - Information
Technologies for customer service, product support, supplies, and service
parts.
If the amplifier does not send signals to the CardioLab system or you
receive an unable to communicate with amplifier message:
Ensure that the amplifier is plugged in and turned on.
Verify that the external cables are connected properly and are
securely attached.
Replace the fiber optic cable (FOC).
Clean the FOC with isopropyl (rubbing) alcohol and blow out the
connectors with compressed air.
Disconnect the FOC from back of the computer and make sure that
there is a light coming from the end of the cable that was plugged
into CPU IN.
With the amplifier and computer turned on, the green LED next to
the CPU IN port on the computer will turn green when connected
properly.
If the problem is intermittent, this problem may indicate a dirty or
broken FOC or connector.
If the problem persists, ensure that all connections inside the
amplifier are secure and the boards are seated securely in their slots.
Random spikes or square waveforms appear in signals when not
stimulating the patient:
Cardiolab® II Plus Amplifier Manual 2002938-002E