Denon AVR-S670H Owner's Manual page 205

Contents Connections
Various online services cannot be played
Various online services cannot be played.
The online service may have been discontinued.
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The HDMI Control function does not work
The HDMI Control function does not work.
Check that "HDMI Control" in the menu is set to "On". (v p. 139)
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You cannot operate devices that are not compatible with the HDMI Control function. In addition, depending on the connected device or the settings, the
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HDMI Control function may not work. In this case, operate the external device directly. (v p. 108)
Check that the HDMI Control function setting is enabled on all devices connected to this unit. (v p. 108)
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When you make connection related changes such as connecting an additional HDMI device, the link operation settings may be initialized. Turn off this
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unit and devices connected via HDMI, and turn them on again. (v p. 108)
Front panel Display
Playback Settings
205
Rear panel
Tips
Remote Index
Appendix