Yamaha RX-S600 Owner's Manual page 101

Problem
The unit cannot be controlled using the remote
control.
External devices cannot be controlled using the
remote control.
The MHL-compatible mobile device cannot be
controlled using the remote control.
Cause
The unit is out of the operating range.
The batteries are weak.
The unit's remote control sensor is exposed to direct sunlight or
strong lighting.
The remote control is set to control external devices.
The remote control IDs of the unit and the remote control are not
identical.
The remote control is set to operate the other zone.
The remote control is set to control the unit.
The corresponding remote control code is not set properly.
A remote control code for another playback device is assigned to
HDMI 5.
The mobile device or its application is not externally controllable.
Remedy
Use the remote control within the operating range (p.5).
Replace with new batteries.
Adjust the lighting angle, or reposition the unit.
Press RECEIVER to set the remote control to control the unit (the key lights up in
orange).
Change the remote control ID of the unit or the remote control (p.93).
Set the remote control to operate the desired zone (p.71).
Press SOURCE to set the remote control to control external devices (the key lights
up in green).
Set the remote control code again (p.95). Even if the remote control code is
registered properly, some products may not respond to the remote control.
Reset the remote control code registered to HDMI 5 (p.97).
Directly operate the mobile device itself.
APPENDIX ➤ Troubleshooting
101
En