Sony HT-DDW840 Operating Instructions Manual page 50

On safety
Should any solid object or liquid fal! imo the cabinet,
unplug the receiver and have it checked by qualified
persomlel before operating it any further.
On power sources
• Before operating
the unit, check that the operating
voltage is identical with your local power supply.
The operating voltage is indicated on the nameplate
at the lear of the receiver.
• The unit is not disconnected from the AC power
somme (mains) as long as it is connected to the wall
outlet, even if the receiver itself has been turned off.
• If you ale not going to use the receiver for a long
time, be sure to disconnect tile receiver from the
wall outlet. To disconnect the AC power cord,
grasp the plug itself; never pull the cord.
• (Models of area code U, CA only)
One blade of the plug is wider _han the other for the
puq3ose of safety and will fit into the wall outlet
only one way. If you are unable to insel°t the plug
fully into the outlet, contact your dealer.
• AC power cord must be changed only at the
qualified service shop.
On heat buildup
Although tile unit heats up during operation, this is
not a malfunction. If you continuously use this unit at
a large volume, the cabinet lemperature of the lop,
side and bottom rises considerably. To avoid burning
yourselt; do not touch the cabinet.
On placement
• Place the receiver
in a location with adequale
ventilation to prevem heat buildup and prolong the
lit_ of the receiver.
• Do not place the receiver near heat sources, or ill a
place subject to direct sunlight, excessive dust or
mechanical shock.
• DO not place anything on top of the cabinet that
might block the ventilation holes and cause
malfunctions.
• Use caution when placing tile unit or speakers on
surt;aces that have been specially treated (with wax,
oil, polish, etc.) as staining or discoloration of the
surt;ace may result.
On operation
Bet_re connecting other comlxmenls, be sure to turn
off and unplug tile receiver.
If you encounter color irregularity on a nearby
TV screen
This speaker syslem is magnetically shielded Io
allow it to be installed near a TV set. However,
color irregularities may still be observed on certain
types of TV sets.
If color irregularity is observed=..
Turn off tile TV set ortce, then turn it on again after
15 to 30 minutes.
If color irregularity is observed again...
Place tile speaker further away from the TV set.
If howling occurs
Reposition the speakel\_ or tunl down tile volume
on the receiver.
On cleaning
Clean the cabinet, panel and controls with a soft cloth
slightly moislened with a mild detergent solution. Do
not use any type of abrasive pad, scouring powder or
solvent such as alcohol or benzine.
If you have any question or problem concerning your
receiver, please consult your nearest Sony dealer.
if you experience _my of the following
difficulties while using the receiver, use this
troubleshooting guide to help you remedy the
problem. Also, see "Checking the connections"
on p_ge 21 to verify that the connections are
correct. Should any problem persist, consult
your newest Sony dealer.
There is no sound or only a very low-level sound
no matter which component is selected=
• Check that the speakers and components are
connected securely and correctly.
• Check that both the receiver and al! the
components ale turned on.
• Check that _he MASTER VOLUME control is
not set at VOL MIN.
• Press MUTING to cancel the muting function.
• Check that the handphones aiaz not connected.
• The protective device on the receiver has been
activated because of a short circuit ("PROTECT"
flashes). Turn offthe receiver, eliminate the
short-circuit problem and tunl on the power
again.
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