Einthoven's Triangle - GE CAM-14 Service Manual

Troubleshooting
Troubleshooting
Symptom
The host device displays the message
Acquisition Module Disconnected
The lead tracings appear inverted or at the
wrong amplitude
All leads have excessive noise
Control switch buttons on the acquisition
module fail or are intermittent

Einthoven's Triangle

The following illustration shows Einthoven's Triangle and the definitions of the
standard 12 leads. Some find this information useful when troubleshooting noisy
leads or lead groups.
24
Troubleshooting
• Check the acquisition cable connection.
• Check the host cable interface flex in the
module.
Check the position of the leadwires on the
acquisition module and the patient.
• Examine the RA and RL leadwires and
replace them if necessary.
• Check the lead preparation site.
• Refer to Einthoven's Triangle to determine
which lead or leads are causing the noise.
• Move the acquisition module to an area
where there is less electrical noise.
• Try another acquisition module.
• Check that the Switch Flex Cable is
plugged into the PCB.
• Replace the switch label.
• If there is still a failure, replace the main
PCB.
CAM-14 /CAM-HD
® ®
2049751-001C