Revision L MAC™ 3500 Resting ECG Analysis System 4-7
2021337-036
Troubleshooting: General Fault Isolation
General Fault Isolation
Power-up Self-test
See the MAC 3500 Operator’s Manual, Chapter 2, “Equipment Overview: Getting
Started” to verify operation.
On power-up, the system automatical
ly runs an internal self-test. If all circuits test
good, the start up screen displays. If the equipment is not working properly, ask
yourself the following questions.
Is the unit turned on?
Have there been any changes in the use, location, or environment of the
equipment that
could cause the failure?
Has the equipment hardware or software been modified since last use?
Is operator error the cause of the problem? Try to repeat the scenario exactly
and com
pare that to the proper operation of the equipment described in th
e
ma
nual.
Is the battery installed?
When connected to the AC wall outlet, does the green AC power light glow?
Is the writer door closed?
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