Power-up sequence
Overview
The system performs a power-on self test (POST) of the software and internal hardware each time
the device is powered on. Specific tests performed include the following:
• CVC-PIC tests
• LED power tests
• eMMC (memory) tests
• EEPROM tests
If all tests are successful, the system completes power up and the user interface screen for the
default configuration appears (either the Home tab or a login/profile selection screen), and the
system is ready for operation.
If the self-check fails, an error message and an error code appear in the system status area at the
top of the screen to aid service personnel and engineers in diagnosing the problem. If a fault that
could adversely affect the product is detected, the system enters a safe mode and stops all
monitoring functions. The system remains in safe mode until it is turned off by pressing
or until
the device shuts down automatically after a period of inactivity.
To perform the POST:
1. Disconnect any patient cables connected to the system.
2. Insert a fully charged battery into the system.
3. Upon each power up, confirm the following:
a. The buzzer generates a sound.
b. A startup screen appears briefly and then disappears.
c. The power button flashes until the UI is ready.
d. A beep sounds, followed by one chime.
NOTE If no chimes sound, replace the speaker as specified in
“Remove the speaker.”
e. The Home tab or the login/profile selection screen appears.
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