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Updating The Software; Additional Information; Troubleshooting - Sony MHC-M20 Operating Instructions Manual

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Press / repeatedly to select
"ON" or "OFF", then press
To exit the options menu, press
"AutoSTBY" flashes on the display about
• •
2 minutes before entering standby
• •
The automatic standby function does
not work in the following cases:
— during tuner function.
— when the Sleep Timer is activated.
— when microphone is connected.
— when the system become Party
Guest during Wireless Party Chain.

Updating the software

The software of this system may be
updated in the future.
You can update your system's pre-
installed software from the websites
Follow the online instructions to
update the software.
For customers in the United States:
For customers in Canada:

Additional Information



Should you encounter a problem
with your system, find your problem
in the troubleshooting checklist
below and take the corrective
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.
If "PROTECTX" (X is a number)
and "CHECK MANUAL" flashes
on the display
Immediately unplug the AC
power cord (mains lead), and
check the following items.
Are you using only the supplied
• •
Is anything blocking the
• •
ventilation holes of the unit?
After you have checked and
found no problems, reconnect
the AC power cord (mains lead),
and turn on the system. If the
issue persists, contact your
nearest Sony dealer.
The power does not turn on.
Check that the AC power cord
• •
(mains lead) is connected securely.
The system has entered standby
This is not a malfunction. The
• •
system enters standby mode
automatically in about 15 minutes
when there is no operation or
audio signal output (page 35).


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