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11. REMOVING THE IR-820SP FOR MAINTENANCE
Step 1.
Remove the 2 infrared filters.
Loosen 2 screws securing each infrared filter, then detach the filter by sliding it outward.
Notes
• Discharge static electricity on your body before starting this step.
• After detaching the infrared filters, you will find the infrared receiver circuit parts and wirings inside
the unit. Never touch them.
Infrared receiver circuit parts
Intrared filter
Screws
Step 2.
Rotate the 4 mounting tab axis screws counterclockwise.
The mounting tabs rise as the screws turn, allowing the
speaker to be removed.
Counterclockwise
Screw cap
Mounting tab
Mounting tab axis screw
Screws
Notes
• When loosening the mounting tab axis screws,
support the IR-820SP by hand to prevent it from
falling.
• Be sure to set the screwdriver’s torque for under
0.58 N·m (6 kgf·cm.)
Failure to do so may cause the screw cap and the
mounting tab to fall off on the rear of ceiling panel.
Use an electric screwdriver
to detach.
