Philips Heartstart XLT, Service Manual

Page: 42 / 224

Diagnostic Tests
2 - 22 Performance Verification and Safety Tests
ECG Tests
These instructions describe how to test the ECG functions.
Each of the ECG tests assumes the unit and the simulator are still set up as
they were at the end of the previous ECG test.
If all results are as described, the unit passes that portion of the test. Return to
the main Diagnostic Test menu by pressing
.
If there is any failure, begin troubleshooting and repairing the unit as needed.
See "Troubleshooting" on page 3-1 and Table 3-7 "Operational Problems -
ECG Monitoring (Pads or Leads)" on page 3-19.
1. Access the Diagnostic Test menu as described in "Diagnostic Mode" on
page 2-11.
2. Select
ECG Test
and press .
3. The display should look similar to Figure 2-5:
Figure 2-5 ECG Test Display
Checking settings
In areas with 50 Hz power, the
AC Line Filter
should be set to
50 Hz
. If the set-
ting is incorrect, access the Configuration Mode and correct it. See "Configu-
ration Mode" on page 2-10.
The
PCI setting should always be Off (factory set default). If it is On , press the
Volume Up and Down arrow keys simultaneously to turn it
Off
. (See Figure 2-
1 on page 2-11.) The software feature this setting controls is not used in the
M3500B/M5500B.
MAIN
ENTER
ECG TEST
Selected Lead: Lead II
AC Line Filter: 60 Hz On
Leads FE Status: Good
Pads FE Status: Good
DSP Status: Good
DC Offset: xxxx
Peak to Peak:
Diagnostic: 1050
Monitor: 1090
PCI: 51 Off
MAIN ENTER