Veeco MPS-3000 CE, Technical Manual

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67
Replace Fuse F8 or F9
1. Remove the correct fuse holder and fuse.
2. Replace the fuse ( See “Fuse List” on page 65. for the correct rating).
3. Insert the fuse holder into the appropriate location on the rear panel.
Updating the Software
To avoid electrical shock, keep clear of “live” circuits. Follow all local lock-
out/tag-out procedures, before continuing.
To update software on the MPS-3000 CE power supply, a single PROM
must be changed. Updated PROM versions are sent in static-protected
bags.
Handle the PROM a static station to limit possible damage.
1. Turn off the facility mains breaker and the CB-1circuit breaker on the
power supply’s rear panel.
2. Remove the 26 screws holding the top cover and mounting ears to the
chassis.
3. Remove the top cover.
4. Replace the PROM located in the XU9 socket.
5. Use a small screwdriver to pry the PROM upward until loose.
6. Remove the PROM from the socket.
7. Orient the new PROM with the notched end toward the inside of the
controller board and insert it into the socket.
8. Apply equal pressure across the PROM until fully and evenly seated. All
the legs must enter straight into the socket and may need to be formed
before inserting the PROM.
9. Verify that the PROM is fully seated and all pins are in the socket.
10. Verify that the notch on the PROM is in the correct orientation.
11. Replace the top cover, mounting ears (if applicable), and screws.
12. Reconnect the power.
13. Verify that the power supply operates correctly.
• If the unit does not complete the self-test sequence, recheck
the seating and orientation of the PROM.
WARNING
CAUTION