![background image](http://html.mh-extra.com/html/sony/gtk-xb7/gtk-xb7_operating-instructions-manual_420565028.webp)
28
GB
GTK-XB7.4-582-492-21(1)
Additional Information
Information about
compatible devices
About supported USB devices
•
This system supports USB Mass
Storage Class only.
•
This system supports FAT formatted
USB devices only (except exFAT).
•
Some USB devices may not work
with this system.
About BLUETOOTH communication
for iPad, iPhone, and iPod touch
Made for
•
iPad 4
•
iPad 3
•
iPad 2
•
iPad Air 2
•
iPad Air
•
iPad mini 3
•
iPad mini 2
•
iPad mini
•
iPhone 6 Plus
•
iPhone 6
•
iPhone 5s
•
iPhone 5c
•
iPhone 5
•
iPhone 4s
•
iPod touch (6th generation)
•
iPod touch (5th generation)
Troubleshooting
Should you encounter a problem with
your system, find your problem in the
troubleshooting checklist below and
take the corrective action.
If the problem persists, consult your
nearest Sony dealer.
Note that if the service personnel
changes some parts during repair,
these parts may be retained.
General
The system does not turn on.
•
Check that the AC power cord is
connected securely.
The system has entered standby
mode.
•
This is not a malfunction. The system
enters standby mode automatically
in about 15 minutes when there is
no operation or audio signal output
There is no sound.
•
Adjust the volume.
•
Check the connection of the optional
equipment, if any.
•
Turn on the connected equipment.
•
Disconnect the AC power cord, then
reconnect the AC power cord and
turn on the system.
There is severe hum or noise.
•
Move the system away from sources
of noise.
•
Connect the system to a different
wall outlet.
•
Install a noise filter (commercially
available) to the AC power cord.
•
Turn off surrounding electrical
equipment.
•
The noise generated by the cooling
fans of the system may be heard
when the system is in standby mode
or during playback. This is not a
malfunction.