ZOLL PD 2000 - 3 Digital Board

SERVICE MANUAL
3. DIGITAL BOARD
The Digital Board includes digital and analog circuitry under control of
two microprocessors, the CPU and the EPU. The functions of the board
include:
Real-Time Device Control
» ECG front end
s Pace/Defib
e CRT display
+ Strip chart
* Power supply
« Beeper
« Option modules
System Functions
e. Non-volatile memory
+ Real time clock
+ ECGsignal processing
+ System status monitoring
User Interface
+ Front panel controls
e Paddles controls
Safety Functions
* Independent monitor of the main processor
Independent measurement of functional safety parameters
Calibration and Rest
‧ Calibration
« Self tests
e Safety tests
IV-6