Chapter 5 Maintenance and Troubleshooting
Air Filters
© 2012 Harmonic Inc.
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Electra 1000, Version 3.0, Rev M
5.1.2
Removing and Replacing the Air Filters
You do not need to turn off the encoder when removing and replacing the air filters.
5.1.2.1
Removing and Replacing the Bezel Filter
To remove the front left filter from behind the front bezel:
1.
Grasp each side of the encoder’s front bezel with your hands.
2.
Carefully remove the front bezel by pulling it away from the encoder.
3.
Remove the filter from inside the front bezel.
4.
Inspect the air filter for dirt, and clean it if necessary.
NOTE:
When the filter is new, its color is medium charcoal. As dust and dirt collect in the porous filter
material, the filter’s color gradually changes to brown, then an ash color.
5.
Replace the filter inside the front bezel. Place the filter so that the long horizontal slot is at
the bottom edge. Carefully place the cutouts in the filter around the bezel mounting
posts.
6.
Carefully replace the front bezel on the encoder making sure the filter does not fall out of
the bezel.
5.1.2.2
Removing and Replacing the Keypad Filter
To remove the air filter from behind the keypad:
1.
Grasp each side of the encoder front bezel with your hands.
2.
Carefully remove the front bezel by pulling it away from the encoder.
Note the location of the filter. The keypad is screwed onto the front of the encoder
through four mounting posts. Cutouts on the filter wrap around the four posts, and the
right side of the filter extends past the keyboard.
3.
Remove the filter by pulling the left side of the filter up and away from the keyboard
mounting posts, then pulling up the right side.
4.
Inspect the air filter for dirt, and clean it if necessary.
5.
Replace the filter by inserting the right side of the filter behind the keypad, with the
vertical slots around the mounting posts.
6.
Insert the left side of the filter, placing the horizontal cutouts around the mounting posts.
7.
Carefully replace the front bezel on the encoder making sure the filter does not fall out of
the bezel.
