Marantz Stereo 70S 2.1-Channel Network A/V Receiver - Manual (Page 179)

Desired sound does not come out
The volume does not increase.
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The maximum volume is set too low. Set the maximum volume using “Limit” on the menu. ( v p. 130)
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Appropriate volume correction processing is performed according to the input audio format and settings, so the volume may not reach the upper limit.
The Bluetooth headphones do not have volume control and the volume is too low or too high.
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Control the volume by adjusting the “Level” of the “Bluetooth Transmitter” from the option menu. ( v p. 65)
The Bluetooth headphones have a volume control function but the volume is still too low or too high.
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Control the volume by adjusting the “Level” of the “Bluetooth Transmitter” from the option menu. ( v p. 65)
No sound comes out with the HDMI connection.
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Check the connection of the HDMI connectors. ( v p. 35)
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When outputting HDMI audio from the speakers, set “HDMI Audio Out” on the menu to “Stereo Receiver”. To output from the TV, set “TV”. ( v p. 131)
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When using the HDMI Control function, check that the audio output is set to the AV amplifier on the TV. ( v p. 104)
No sound comes out of a specific speaker.
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Check that speaker cables are properly connected.
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Check that a selection “Yes” is set for the “Speaker Layout” – “Subwoofer” setting in menu. ( v p. 144)
Contents Connections Playback Settings Tips Appendix
179
Front panel Display Rear panel Remote Index