Extron electronic MAV User Manual download pdf (Page 67)

B-5MAV Series Switchers • Reference Information

9. Reinstall the cables that were removed in step 2 and 3. Ensure that the

RS-232/RS-422 ribbon cable is plugged into the proper receptacle for either

RS-232 or RS-422, as appropriate.

10. Reinstall the switcher’s front panel and cover. See Closing the switcher on

page B-3.

If you choose to check for proper operation before putting the cover back

on, ensure that tools and hands are outside the switcher and then perform

step 11. After recognizing the new IC, the switcher should power up

normally. Unplug the AC power cord, and reinstall the switcher.

11. Reinitialize the switcher to recognize the new IC as follows:

a. Connect the power cord to the AC power source.

b. Press and hold the Enter button while you connect the power cord to the

switcher.

c. Observe that the Input, Output, Preset, View, and Esc LEDs all flash.

d. Release the Enter button.

12. Ensure that the switcher is working properly.

13. If the switcher was removed from a rack, remove its power cord, reattach the

switcher to the rack, and reconnect the power cord.

14. Reconnect the input and output cables.

Replacing the AC fuse

To replace the AC fuse, do the following:

1. Follow the instructions in Opening the switcher on page B-2 for removing the

top cover.

2. Locate the fuse on the power supply board (see figure B-2), and remove the

fuse 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 as described in Closing the switcher on page B-3.

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, and

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 switcher.

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.

Button Labels

Eight sets of button labels are provided on the next page. Feel free to cut them out

of the manual, write button information in each button area as desired, and put

them in the switcher’s label window.

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Extron electronic MAV User Manual Page 67

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