Ab
out y
our Logit
e
ch® Z-640 speak
er sy
st
em
2
English
Saf
ety
1
English
Thank you for purchasing the Z-640 speaker system from Logitech. The Z-640 system will
raise your audio experience to new levels. To discover more Logitech products, visit us on the
web at www.logitech.com.
1. Subwoofer
2. Right front speaker
—black plug
3. Right rear speaker
—red plug
4. Audio input cable to PC
—green, black and
orange plugs
5. Center channel speaker
—black d-sub connector
6. Power cord
7. Left rear speaker
—white plug
8. Left front speaker
—yellow plug
9. Subwoofer volume
A. Power button
B. System Volume knob
C. Fader knob
D. Power light
E. Center volume knob
F. Matrix button
G. Headphone jack
- +
SUB
VOLUME
CENTER
power volume
fader
cente
r
matri
x
E
A
B
C
F
G
D
7
1
5
8
6
2
9
4
3
Console Video Game adapter
(not used with PCs)
• Read these instructions.
• Keep these instructions.
• Heed all warnings.
• Follow all instructions.
• Unplug the speakers from the computer and
from the electrical outlet before cleaning them
with a dry cloth.
• Install in accordance with the manufacturer’s
instructions.
• Place the speakers in a stable location so they
will not fall causing damage to the speakers or
bodily harm.
• Do not use the speakers near water, and do not
immerse them in any liquid or pour any liquid on
them.
• Do not block the openings in the speaker
cabinets, never push objects into speaker vents
or slots because of fire or electric shock hazards,
and provide sufficient space around the speakers
for proper ventilation.
• Do not install near any heat sources such as
radiators, heat registers, stoves, or other
apparatus (including amplifiers) that produce
heat.
• Do not defeat the safety purpose of the
polarized plug. A polarized plug has two blades
with one wider than the other. The wide blade
is provided for your safety. If the provided plug
does not fit into your outlet, consult an
electrician for replacement of the obsolete
outlet.
• Operate the speakers only from the audio line
out jack of the computer or of an audio device.
• Protect the power cord from being walked on or
pinched particularly at plugs, convenience
receptacles, and the point where they exit from
the apparatus.
• Only use attachments/accessories specified by
the manufacturer.
• For added protection during lightning storms,
unplug the speakers from the electrical outlet
and turn off the computer.
• Unplug this apparatus when unused for long
periods of time.
• Servicing is required when the apparatus has
been damaged in any way, such as power-supply
cord or plug is damaged, liquid has been spilled
or objects have fallen into the apparatus, the
apparatus has been exposed to rain or moisture,
does not operate normally, or has been
dropped.
• Refer all servicing to qualified service personnel.
• The speakers should be disconnected from the
mains by placing the subwoofer Master Power
switch in the off position and unplugging the
power cord of the speakers from the AC mains
receptacle.
WARNING:
TO REDUCE THE RISK OF ELECTRIC
SHOCK, DO NOT EXPOSE THIS
APPARATUS TO RAIN OR MOISTURE.
IMPORTANT SAFETY INFORMATION
CAUTION
ELECTRIC SHOCK HAZARD
Stereo mini
to speakers
RCA jacks
from console
