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Reference Information, cont’d
CrossPoint 42 HVA Matrix Switcher • Reference InformationB-4
8. Ensure that the switcher is working properly.
9. If the switcher was removed from a rack, remove its power cord, reattach the
switcher to the rack, and reconnect the power cord.
10. Reconnect the input and output cables.
Replacing the AC fuse
The AC fuse on the power supply board is a user-replaceable component of the
CrossPoint 42. To replace the AC fuse, do the following:
Figure B-5 — Replacing the AC Fuse
1. Follow the instructions in Opening the switcher on page B-2 to remove the top
cover.
2. Locate the fuse on the power supply board (see figure B-5), and remove it
from its retaining clips.
3. If test equipment is available, you can check the fuse.
4. Place a new 2A/250V fast-blow fuse in the retaining clips.
5. Reinstall the switcher’s cover. See Closing the switcher on page B-2.
If you choose to check the switcher for proper operation before putting the
cover back on, ensure that tools and hands are outside the switcher, then
connect the power cord to the unit and to an AC source. The switcher
should power up normally. Unplug the AC power cord and reinstall the
cover.
6. Attach the power cord to the switcher and to the AC power source. Make
sure the switcher is working properly.
7. If the switcher was removed from a rack, remove its power cord, reattach the
switcher to the rack, and reconnect the power cord.
8. Reconnect the input and output cables.
Fuse
1.5A MAX
R
1
2
G
B
H
V
R
G
B
H
V
H
V
H
V
RS232
INPUTS
OUTPUTS
AUDIO
INPUTS
AUDIO
OUTPUTS
L
R
L
R
L
R
1
2
1
3
4
2
R
G
B
H
V
100-240V 50-60Hz
1
ON
2
3
4
H
V
H
V
3
4
1
2