TOA Electronics DA-250F CU User Manual

15

Step 1. Switch off the unit's power. 

Step 2. Remove the ventilation panel as shown in the figure. 

Step 3. Detach the filter inside the ventilation panel.

Step 4. Clear the filter of dust. 

Step 5. Replace the filter and ventilation panel. 

Detach the panel by pressing on the left and right sides. 

Filter

Ventilation Panel