Qualstar XLS Series, Technical & Service Manual

Page: 204 / 366

12.2 Replacing the X-Y Controller Card
12-18
501610 Rev. 07-01-19
9. Lift out the card.
WARNING!
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).
Do not
touch the
capacitors
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 Figure 12-16 on
page 12-17 .
5. Reattach the four cables. See Figure 12-16 on page 12-17 .
6. Close any open doors.
7. Apply power to the XLS. See Section 17.3 on page 17-4 .
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.