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Part 2 Isolating and Solving Monitor Problems
6-10 Troubleshooting
No sound from monitor Tone is switched off or low. 1. Turn the volume up by pressing the
Volume button.
2. Power-cycle monitor. Tone should
sound when monitor boots up.
3. Check cable connections to the
speaker.
Incorrect Time Stamps
Invalid data stored showing
wrong times for data
The monitor’s real time clock is
defective.
Power the monitor On and then reset the
time and date. See the C3 Instructions for
Use guide for instructions on how to set
the date and time.
Cannot reprogram the time
and date correctly
Main PCB module malfunction. Replace the Main PCB module according
to the instructions in
“Removing the
Main PCB Module” on 7-12
.
Fluid dripping from the
monitor
LCD Display damaged or cracked. Replace LCD Display.
Decrease in light intensity on
display.
Brightness decreases from
top to bottom or bottom to
top.
Backlight tube is worn out. Replace backlight tube according to
instructions in “Replacing the Backlight
Tube” on page 7-9.
No tone alarms
Speaker will not work
Audible alarms are not switched
on.
Cable disconnected.
Defective speaker.
Make sure audible alarms are switched on.
Reconnect cable.
Replace speaker.
The wheel is rotated, no
highlight appears on the
display screen, and/or the
monitor does not respond to
wheel presses.
Main PCB module malfunction. Replace the Main PCB module according
to the instructions in
“Removing the
Main PCB Module” on 7-12.
Symptom Cause of Failure Remedy