Revision A
Dash 3000/4000 Patient Monitor
5-27
2000966-339
Troubleshooting:
Service Tips
Service Tips
Fault/Symptom Analysis
This information is provided for the benefit of service technicians
responsible for the maintenance and repair of the monitor. The
symptoms covered in this part of the Troubleshooting section represent
only a select number of faults that you may encounter and by no means
are intended to cover every possible failure that may occur.
A systematic approach to the diagnosis of problems as well as a general
understanding of the architecture, both hardware and software, of the
monitor are essential to ensure successful troubleshooting of this device.
The manufacturer recommends formal service training before repairs are
attempted on the monitor. The Service Tips listed below combined with
formal training should provide the service technician with skills
necessary to service and repair a monitor, in the event of a malfunction.
Problem
Reason
Solution
General Problems
The unit is plugged in, but it does not
switch to AC from Battery power.
The output voltage of the power
supply is inadequate for the
processor PCB to recognize.
Replace the power supply.
Replace the processor/power management assembly.
Audio Problems
Audio does not sound.
Go to the Alarm Help Menu and select
“Crisis.” Listen for the three-beep
audio.
The speaker cable is loose or
disconnected.
Restore the cable connections.
The speaker failed.
Replace the speaker.
The audio circuit on the processor
PCB failed.
Replace the Replace the processor/power
management assembly.
Optional Writer Problems
No paper comes out, even though
“Graphing” is displayed.
Graph locations are set incorrectly.
With the
Trim Knob
control, select
MONITOR GRAPH
SETUP
, and
GRAPH LOCATION
. Verify that MANUAL,
ALARM, and PRINT locations are set properly.
Paper comes out, but no graph data is
shown.
The paper may be loaded
incorrectly.
Refer to the Operator Manual for correct paper
installation.
Print head may be dirty or
defective.
Clean the printhead. Refer to Chapter 4,
Perform a graph test. If problem persists, replace the
writer assembly.
Saving Message
Writer is busy.
When the graph is complete, the saved graph prints
out.
Writer is no longer available.
Check the graph locations. Set the correct graph
locations if necessary.
Missing segments in the graph data.
Print head may be dirty or
defective.
Clean the printhead. Refer to Chapter 4,
Perform a graph test. If problem persists, replace the
writer assembly.
Содержание Dash 3000
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Страница 236: ...9 12 Dash 3000 4000 Patient Monitor Revision A 2000966 339 Assembly Drawings Theory Of Operation Block Diagram ...
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Страница 279: ...Revision A Dash 3000 4000 Patient Monitor A 1 2000966 339 A Appendix A Electromagnetic Compatibility EMC ...
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