Sony STR-DN840 - Manual (Page 111)

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• The signal strength of the stations is
too weak with automatic tuning. Use
direct tuning.
• Make sure you set the tuning scale
correctly (when tuning in AM stations
with direct tuning) (page 50).
• No stations have been preset or the
preset stations have been cleared
(when tuning by scanning preset
stations is used). Preset the stations
(page 50).
• Press AMP, then press DISPLAY
repeatedly on the remote control so
that the frequency appears on the
display panel.
The sound is distorted.
• Press
2
– on the remote control
repeatedly.
• Set the “EQ” setting of the iPod/
iPhone to “Off” or “Flat”.
There is no sound from the iPod/
iPhone.
• Disconnect the iPod/iPhone and
connect the iPod/iPhone again.
The iPod/iPhone cannot be charged.
• Check that the receiver is turned on.
• Make sure the iPod/iPhone is
connected firmly.
The iPod/iPhone cannot be operated.
• Check that you have removed the
protect case of the iPod/iPhone.
• Depending on the contents of the iPod/
iPhone, it may take time to start
playback.
• Turn off the receiver, then disconnect
the iPod/iPhone. Turn on the receiver
again and reconnect the iPod/iPhone.
• You are using an unsupported iPod/
iPhone. See “Compatible iPod/iPhone
models” (page 43) for the supported
device types.
The ringtones volume of the iPhone
does not change.
• Adjust the ring volume using the
controls on the iPhone.
Are you using a supported USB
device?
• If you connect an unsupported USB
device, the following problems may
occur. See “Compatible USB devices”
(page 45) for the supported device
types.
– The USB device is not recognized.
– File or folder names are not
displayed on this receiver.
– Playback is not possible.
– The sound skips.
– There is noise.
– A distorted sound is output.
There is noise, skipping, or distorted
sound.
• Turn off the receiver and reconnect the
USB device, then turn on the receiver.
• The music data itself contains noise, or
the sound is distorted.
The USB device is not recognized.
• Turn off the receiver, then disconnect
the USB device. Turn on the receiver
again and reconnect the USB device.
• Connect the supported USB device
(page 45).
• The USB device does not work
properly. Refer to the USB device
operating instructions on how to deal
with this problem.
Playback does not start.
• Turn off the receiver and reconnect the
USB device, then turn on the receiver.
• Connect the supported USB device
(page 45).
• Press N to start playback.
iPod/iPhone
USB device