Service manual

Section 3: Performance Verification
3-2
2. Verify that the monitor is off and that the AC Power/Battery Charging
indicator is lit.
3. Charge the battery for at least 14 hours.
3.3.2 Performance Tests
The power-up performance tests (3.3.2.1 and 3.3.2.2) verify the following
monitor functions:
• Power-On Self-Test
• Factory Power-On Defaults and Alarm Limit Ranges
NPB-190
On/Standby Alarm Silence
Adjust
Up
Adjust
Down
Lower Alarm
Limit
Upper Alarm
Limit
Figure 3-1: NPB-190 Controls
Note: Refer to Figure 3-1, NPB-190 Controls, when following the instructions
listed below.
3.3.2.1 Power-On Self-Test
1. Connect the monitor to an AC power source. Verify that the AC
Power/Battery Charging indicator is lit.
2. Do not connect any input cables to the monitor.
3. Observe the monitor front panel. With the monitor off, press the Power
On/Standby button. Verify that the monitor performs the following
sequence: