130
Maintenance & Troubleshooting
Cooling Fan Replacement
Critical temperature and fan alarms are reported through the following mechanisms:
• The alarm status in XAdmin are called
XXXX fan failure
where
XXXX
identifies the
specific fan. For example,
FSM 0 fan failure
.
• The alarm status in the iControl service's GSM is called
Hardware Failure
.
• The fan and critical temperature alarms are reported in iControl in the Alarms
Configuration panel. See
, on page 106 for more information.
• A KMX-3921 card’s front Status LED flashes due to this condition (note that the Status
LED can also flash due to other conditions). This cannot be stopped by a service panel
action.
• A
Fan Failure
message is displayed in the dashboard.
The fan alarm indicates that the fan is not rotating fast enough due to wear and thus it may
not provide enough cooling. A fan alarm must be addressed right away. A critical
temperature alarm can be ignored if it is accompanied by a fan alarm as the root cause is
the fan not rotating fast enough.
Otherwise, if the fan is running properly according to the fan alarm, then the
Critical
Temperature Alarm Corrective Actions
steps should be taken.
Critical Temperature Alarm Corrective Actions
If the fan alarm is inactive and the critical temperature alarm is active, then undertake the
following diagnostic steps in the following order:
1 Confirm that the room temperature is within Densité 3+ FR4’s operating temperature
range specification. If necessary, take corrective actions by, for example, increasing the
amount of air conditioning made available to the Densité 3+ FR1 / Densité 3+ FR4
frame.
2 Confirm that air flow around the Densité 3+ FR1 / Densité 3+ FR4’s frame is not
obstructed. If necessary, take corrective actions by, for example, removing obstructions
or rerouting cables around and away from the Densité 3+ FR1 / Densité 3+ FR4 frame.
3 When the previous corrective actions do not eliminate an critical temperature alarm,
verify that the KMX-3921’s onboard fan is working correctly. See
Fan Noise
Over time, a fan’s performance (operating speed) can degrade which may raise critical
temperature and fan alarms. Under this circumstance, a fan may emit a rough-sounding
lower pitched sound as compared to the sound that other healthier fans emit. To confirm
that the card has an abnormally-sounding fan, during off hours when the system is not in
use, eject the card from the Densité 3+ FR1 / Densité 3+ FR4 frame to verify that the
distinctive sound stops and take corrective actions (see below).
Or there may be no sound at all if the fan’s rotation is completely blocked. While the card is
in the frame, make a visual inspection with a flashlight to confirm fan rotation. If the fan is
not rotating, then corrective actions must be taken.
Fan Alarm and Fan Noise Corrective Actions
When a fan alarm is raised, it must be addressed right away. During off hours when the
system is not in use, eject the card from the Densité 3+ FR1 / Densité 3+ FR4 frame and
Содержание Grass Valley KMX-3921
Страница 6: ...6 Notices...
Страница 38: ...38 Installation Install the SFP Module s...
Страница 50: ...50 Multiviewer Cabling To make the multiviewer operational...
Страница 152: ...152 Specifications Built in Communications Protocols...
