58
GB
The remote control does not function.
• Point the remote control at the remote
control sensor on the receiver (page 7).
• Remove any obstacles in the path
between the remote control and the
receiver.
• Replace all the batteries in the remote
control with new ones, if they are
weak.
• Make sure you select the correct input
on the remote control.
If there is a malfunction, a message appears
on the display panel. You can check the
condition of the system by the message. If
any problem persists, consult your nearest
Sony dealer.
If an error message appears while you use a
USB device, see “USB message list”
(page 30).
PROTECTOR
Irregular current is output to the
speakers, or the receiver is covered and
ventilation holes are blocked. The
receiver will automatically turn off after
a few seconds. Remove the object
covering the upper panel of the receiver,
check the speaker connection and turn
on the power again.
USB FAIL
An over current from the
(USB) port
was detected. The receiver will
automatically turn off after a few
seconds. Check the USB device, then
unplug it and turn on the power again.
Reference sections
Specifications
Amplifier section
Power Output
• STR-KM77
Stereo mode output (rated)
(6 ohms, 1 kHz, THD 1%)
120 W + 120 W
1)
Surround mode output
2)
(reference)
(6 ohms, 1 kHz, THD 30%)
RMS output
FRONT: 264 W per channel
1)
CENTER: 266 W
1)
SURROUND: 264 W per channel
1)
SURROUND BACK: 264 W per
channel
1)
Surround mode output
2)
(reference)
(4 ohms, 100 Hz, THD 30%)
SUBWOOFER: 300 W per channel
1)
• STR-KM55
Stereo mode output (rated)
(6 ohms, 1 kHz, THD 1%)
120 W + 120 W
1)
Surround mode output
3)
(reference)
(6 ohms, 1 kHz, THD 30%)
RMS output
FRONT: 270 W per channel
1)
CENTER: 270 W
1)
SURROUND: 270 W per channel
1)
Surround mode output
3)
(reference)
(4 ohms, 100 Hz, THD 30%)
SUBWOOFER: 300 W per channel
1)
Remote control
Error messages
Clearing the memory
To clear
See
All memorized settings
Customized sound fields
