Qualstar XLS Series Technical & Service Manual page 204

12.2 Replacing the X-Y Controller Card
9. Lift out the card.
To avoid the risk of electric shock, do not touch the capacitors
on the bottom of the X-Y controller card even when they are
fully discharged (that is, even when the LEDs are off).
12.2.2 Installing the X-Y Controller Card
To replace the X-Y controller card, follow these steps:
1. Reposition the card in the frame.
2. Replace the screws that attach the card to the frame.
3. Replace the X-Y controller card cover.
4. Replace the four screws that attach the cover to the frame. See
page
5. Reattach the four cables. See
6. Close any open doors.
7. Apply power to the XLS. See
8. Check the X-Y controller card to ensure that both LEDs come back on, as follows:
– The right LED should light up in about 1 minute
– The left LED should light up in about 6 to 8 minutes.
12-18
WARNING!
Do not
touch the
capacitors
12-17.
Figure 12-16 on page
Section 17.3 on page
Figure 12-16 on
12-17.
17-4.
501610 Rev. 07-01-19