Sony CAS-1 Troubleshooting Manual page 10

Left and right sound balance is unclear or reversed.
 Position the speakers symmetrically.
 Make sure that speaker cords L/R and +/– are connected correctly.
Muting is activated.
 Press the MUTING button on the remote. Or, turn the volume up by
using the VOL +/– buttons on the remote or the volume control on
the main unit.
Severe hum or noise occurs.
 Make sure to check the connection with the speakers (Refer to "Set
up" of the Operating Instructions).
BLUETOOTH
Pairing (device registration) failed, or the unit cannot establish
BLUETOOTH connections with a Walkman/smartphone/iPhone
while the SongPal is set.
 When using a Walkman or a smartphone with the NFC function,
keep touching it on the N-Mark of the unit until the BLUETOOTH
input LED stops flashing and remains lit.
 When you cannot establish a BLUETOOTH connection by one touch
(NFC), press the (BLUETOOTH) PAIRING button on the rear side of
the unit or the PAIRING button on the remote, and pair the device
with the unit (Refer to "Playback" of the Operating Instructions).
Cannot pair a BLUETOOTH device with the unit.
 When using a Walkman or a smartphone with the NFC function,
touch the device on the N-Mark of the unit and they will be paired
(Refer to "Playback" of the Operating Instructions).
 Check that the unit is not effected by a wireless LAN, other 2.4 GHz
wireless equipment, or a microwave oven. When there is
equipment that generates electromagnetic waves, use them away
from the unit.
Cannot establish the connection.
 Place the BLUETOOTH device to be connected within one meter of
the unit.
Cannot establish a BLUETOOTH connection by one touch (NFC).
 Turn on the NFC function of the Walkman or the smartphone.
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 Touch the N-Mark of the Walkman or the smartphone on the N-
Mark of the unit. If the device does not respond even though it is
touched to the unit, move it slowly to the front, rear, left and right.
Once it responds, follow the on screen instructions of the device
and finish establishing the connection.
 If the smartphone has a case, the connection may succeed when
the case is removed.
The unit turns off automatically after it is turned on by one touch
(NFC) from the power off state.
 The unit turns off automatically when the BLUETOOTH connection is
not completed within 1 minute after turning on the unit by one
touch (NFC).
There is distorted sound, noise, or skipping.
 Place the connected device within one meter of the unit.
 If the connected device has the setting for playback quality for a
BLUETOOTH connection, set the setting as the connection priority.
 Press the LDAC button on the remote to turn off the LDAC function.
Sound of the connected PC is not output.
 Make sure that the sound output of the PC is set to BLUETOOTH.
 Make sure that the BLUETOOTH connection between the PC and the
unit is established.
 Pair the PC and the unit again.
USB-A
The USB device is not recognized.
 The USB device is not recognized until the USB-A input LED stops
flashing and remains lit.
 iPhone/iPod cannot be played back via the USB-A connection.
When you use iPhone/iPod with the unit, a BLUETOOTH connection
is necessary.
Contents in folders of a USB device are not displayed in SongPal.
 Contents of folders after the 10th level of a folder are not displayed.
The unit can display the contents up to the 10th level of a folder
(including the "ROOT" folder). The maximum number of folders and
files on the USB device that can be displayed with this unit is 998.