Sony MHC-GNX100, MHC-GNX90, MHC-GNX88, MHC-GNX80, MHC-GNX77, MHC-GNX70, MHC-GX9900, MHC-GNX66, MHC-GNX60 Operating Instructions Manual page 11

Inserting two R6 (size AA)
batteries into the remote
Note
If you do not use the remote for a long period of time,
remove the batteries to avoid possible damage from
battery leakage and corrosion.
Tip
With normal use, the batteries should last for about six
months. When the remote no longer operates the
system, replace both batteries with new ones.
Attaching the speaker pads
Attach the supplied speaker pads to the bottom
of the speakers to stabilize the speakers and
prevent them from slipping.
When carrying this unit
Do the following procedure to protect the disc
mechanism.
Use buttons on the unit for the operation.
1
Press ?/1 to turn on the system.
2
Press CD.
3
Make sure that all discs are removed
from the unit.
4
Hold down CD, then press ?/1 until
"LOCK" appears in the display.
5
Release ?/1 first, then release CD.
6
Unplug the AC power cord.
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