![background image](http://html.mh-extra.com/html/nec/n8146-44/n8146-44_user-manual_248785021.webp)
21
2
.
Replacement of dust-proof filter
2.1 Pull the tab and remove the dust proof filter.
2.2 Install the dust proof filter in reverse order of removal procedure.
3
.
Install the dust proof cover to front bezel as shown in figure below.
Dust Proof Cover
Dust Proof Filter
①
②
●
Be sure to set the dust proof filter without interstices.
●
The dust proof filter does not have an up-and-down distinction
Tips