Sony HT-M77 Operating Instructions Manual page 57

• The pairing registration information
has been erased. Perform the pairing
operation again (page 35).
• Erase the pairing registration
information of a Bluetooth device
(page 36) and perform the pairing
operation again.
The sound skips or fluctuates, or the
connection is lost.
• The receiver and the Bluetooth device
are too far apart.
• If there are obstacles between the
receiver and your Bluetooth device,
remove or avoid the obstacles.
• If there is equipment that generates
electromagnetic radiation, such as a
wireless LAN, other Bluetooth device,
or a microwave oven nearby, move
them away.
The sound of your Bluetooth device
cannot be heard on this receiver.
• Turn up the volume on your Bluetooth
device first, and then adjust the volume
using VOL + (or MASTER VOLUME
on the receiver).
Severe hum or noise.
• If there are obstacles between the
receiver and your Bluetooth device,
remove or avoid the obstacles.
• If there is equipment that generates
electromagnetic radiation, such as a
wireless LAN, other Bluetooth device,
or a microwave oven nearby, move
them away.
• Turn down the volume of the
connected Bluetooth device.
"SongPal" app is closed.
• Disconnect the Bluetooth connection
on your smartphone, then reconnect it
to the receiver again (page 36).
"BRAVIA" Sync (Control
for HDMI)
The Control for HDMI function does not
work.
• Check the HDMI connection (page 18,
21).
• Make sure "CTRL HDMI" is set to
"CTRL ON" in HDMI settings menu
(page 47).
• Make sure the connected equipment is
compatible with the Control for HDMI
function.
• Check the Control for HDMI settings
on the connected equipment. Refer to
the operating instructions of the
connected equipment.
• If you unplug the HDMI cable or
change the connection, repeat the
procedures of "Preparing for the
"BRAVIA" Sync" (page 40).
• When "CTRL HDMI" is set to "CTRL
OFF", the "BRAVIA" Sync does not
work properly, even if the equipment
is connected to the HDMI IN jack.
• The types and the number of
equipment which can be controlled by
the "BRAVIA" Sync are restricted in
the HDMI CEC standard as follows.
– Recording equipment (Blu-ray Disc
recorder, DVD recorder, etc.): up to
3 equipment
– Playback equipment (Blu-ray Disc
player, DVD player, etc.): up to 3
equipment
– Tuner-related equipment: up to 4
equipment
– AV receiver (audio system): up to 1
equipment
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