Qualstar XLS Series Technical & Service Manual page 202

12.2 Replacing the X-Y Controller Card
Required tools and equipment:
• #2 Phillips screwdriver
12.2.1 Removing the X-Y Controller Card
To remove the X-Y controller card, follow these steps:
1. Shut down the library and power it off. See
2. Open the right door.
3. On the floor of the XLS on the right-hand side, locate the two X-Y LEDs. See
Figure
Figure 12-15 LEDs on the X-Y controller card
4. Ensure that both LEDs are off, indicating that the capacitors on the X-Y
controller card have fully discharged. It may take as long as 25 minutes after you
power off the XLS for the capacitors to fully discharge.
To avoid the risk of dangerous electric shock, do not remove
the cover from the X-Y controller if the X-Y LEDs are
illuminated!
12-16
Make sure you have the following:
12-15.
WARNING!
Section 6.2 on page
X-Y LEDs
6-1.
501610 Rev. 07-01-19