Led Indicators For Power Status; Cooling Fan Replacement - Advantech IPC-622 Series User Manual

3.1.3

LED Indicators for Power Status

The LEDs that indicate the status of the backplane voltage signals are explained in
the table below.
Table 3.2: LED Indicators for Power Status
LED
+5 V
+12 V
-5 V
-12 V
+3.3 V
When an LED fails to activate, this indicates a problem with one of the voltage sig-
nals. Check that the power supply connector is correctly attached to the backplane. If
the problem persists, consult an experienced technician.
3.2

Cooling Fan Replacement

Four cooling fans are located in the front top of the chassis. They provide the system
with ample cooling by blowing air rearwards. To replace a cooling fan, please refer to
Figure 3.2 and follow the steps outlined below.
1. Remove the front top chassis cover.
2. Loosen and remove the thumb screw on the top of the fan unit. This will discon-
nect the cooling fan power connector.
3. Replace the cooling fan with a new cooling fan.
4. Attach the new cooling fan by fastening the thumb screw.
5. Replace and fasten the front top chassis cover.
Description
+5 V signal
+12 V signal
-5 V signal
-12 V signal
+3.3 V signal
Figure 3.2 Cooling fan replacement
15
LED on LED off
Normal Abnormal
Normal Abnormal
Normal Abnormal
Normal Abnormal
Normal Abnormal
IPC-622 User Manual