Maintenance Inside The Lyra - D&R LYRA Maintenance Manual

Index

4. Maintenance inside the Lyra

There are several maintenance issues that you can do without having to dismantle the Lyra.
1. System Fan Maintenance
The System Fan needs to be cleaned once a year to ensure that the temperature inside the
Lyra does not get too hot. This can be done by opening the Lyra and blowing compressed
air from the inside through the Fan. Or you can remove the Fan by removing the two or
four (depending on the production date of your Lyra) screws with which the Fan is
mounted in the casing.
If the bearings of the Fan wear out the Fan will start to become more and more noisy.
When this happens the Fan should be replaced to ensure proper operation.
2. Adjusting the Power supply
When a CobraNet interface card is added or if a new power supply is fitted it may be
necessary to (re)adjust the power supply. You can check the current voltage in the "System
Information" page.
You can do this by following the procedure below:
1) On the Core PCB there is a Molex connector which
you can use for Ground and +5 Volts measurement
points.
2) Now adjust the power supply so that the so that the
+5V on the Core PCB is exactly +5V.
Lyra Maintenance Manual. D&R Electronica Weesp B.V. tel. +31 294 418041. info@d-r.nl