Fault Analysis; Overview; Required Tools Or Equipment; Problems - GE Dash 3000 Service Manual

Fault analysis

Overview

Required tools or equipment

Problems

Problem
General
The unit is plugged in, but it does not
switch to AC from battery power.
Alarm audio
Audio does not sound.
Go to the Alarm Help Menu and select
"Crisis." Listen for the three-beep
audio.
Waveform display
6-2
Troubleshooting: Fault analysis
The symptoms and solutions in this chapter represent only a few of the
faults that you may encounter and are not intended to cover every
possible problem 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
patient monitor are essential to ensure successful troubleshooting of a
device. GE recommends formal service training before repairs are
attempted. These troubleshooting procedures combined with training
provide the service technician with skills necessary to service and repair
a patient monitor in the event of a malfunction.
Standard set of hand tools

Patient simulator with cables

Digital multimeter

Before starting any detailed troubleshooting, complete a thorough visual
inspection of the following.
All cable connections secure?

Devices properly powered?

Connected to a proper power source?

Possible reason
The output voltage of the power

supply is inadequate for the
processor PCB to recognize.
The speaker cable is loose or

disconnected.
The speaker failed.

The audio circuit on the processor

PCB failed.
Patient cables are bad.

The acquisition PCB, DAS Assembly

or power supply PCB failed.
Dash 3000/4000/5000
Solution
Perform "Power outlet test" on page 8-5

AC power.
Replace the power supply.

Replace the processor/power management

assembly.
Restore the cable connections.

Replace the speaker.

Replace the Replace the processor/power

management assembly.
Perform appropriate sections of the

Checkout procedures" on page 8-20
the waveform problem.
to confirm
"Functional
depending on
2000966-542D