Diagnose Leds - Canon PRISMAsync v3.2 Technical & Service Manual

Diagnose LEDs

There are some LEDs present on the outside and the inside of the PRISMAsync.
These LEDs might lead you to the cause of a problem. Always check these LEDs first to get some
first impression.
Network Status LEDs
Next to each Ethernet connector there are 2 LEDs indicating the network speed.
When data is transferred, the appropriate LED will blink to indicate network activity.
• No LED activity on upper Ethernet connector.
There is no connection to the customer network. First checks to perform:
- Check if cables are connected correctly in PRISMAsync and wall outlet.
- Check if cable is not defect.
- Check if normal and crossover Ethernet cables are not exchanged.
- Check if the network is functioning.
• No LED activity on lower Ethernet connector.
There is no connection between the copier and the PRISMAsync. First checks to perform:
- Check if cables are connected correctly in PRISMAsync and wall outlet
- Check if cable is not defect
- Check if normal and crossover Ethernet cables are not exchanged.
LED in power button
In the power on/off button on the front side of the PRISMAsync a LED is integrated.
If the PRISMAsync is switched on this LED is shining blue.
If the LED stays off check the following:
• Does the PRISMAsync switch on? If so there is probably an open connection in the LED wiring.
• If the PRISMAsync cannot be switched on or off then there is either a problem with the wiring
of the button or with the power supply.
LEDs on AUX control board
On the AUX control board you can find some LEDs. These LEDs indicate the presence of power
on the board. All LEDs should be shining green. If one of the LEDs is off, the board will not
function.
Please first check the connectors and the cables before replacing the board.
The function of the LEDs are
1. 3.3 Volt
2. 5 Volt
3. 12 Volt
4. 24 Volt
Note:
• The board is mounted upside down in the PRISMAsync, so it might be difficult to check the
boards.
PRISMAsync V3.2
Diagnose LEDs
Chapter 10 - Troubleshooting 115