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Cautions
Please read the following operating precautions before use:
• When you disconnect the AC adaptor from the AC
receptacle, hold the plug, not the cord.
• If you plan not to use the YST-M40s for a while,
disconnect the AC adaptor from the AC receptacle.
• Always disconnect the AC adaptor from the AC
receptacle before making any connections.
• The YST-M40s do not contain any user serviceable
parts. Refer all servicing to your Yamaha dealer.
•
Never open the cabinet.
If a foreign object drops
into the set, contact your dealer, and do not use the
YST-M40s. Otherwise, you may cause a fire.
• Do not expose the YST-M40s to temperature
extremes, direct sunlight, excessive dust, humidity,
or vibration.
• Position the YST-M40s on a level, stable surface.
Do not drop the YST-M40s, apply excessive force
to their controls, or put heavy items on top of them.
• Do not place small metal objects on the speakers.
Otherwise, the object may fall, possibly causing an
injury.
• Do not obstruct the port with your hand or a for-
eign object.
• To protect the YST-M40 speakers, avoid micro-
phone feedback, continuous and excessive output
from electronic musical instruments, and excessive
signal distortion.
• If the YST-M40s are located close to fluorescent or
neon lights, a slight hum may be heard. In this
case, relocate the YST-M40s away from the light.
• Although the YST-M40 speakers are magnetically
shielded, keep floppy disks and tapes away from
them.
• The YST-M40s may cause picture distortion when
located close to a television or computer monitor.
In this case, move them away a short distance.
• Avoid sources of hum (transformers, motors). To
prevent fire or electrical shock, do not expose to
rain and water.
• Do not use force on switches, knobs, or cables.
When you move the YST-M40, first turn off the
power to the speakers, then disconnect the AC
adaptor from the AC receptacle and the cables
from the connected devices.
• Always turn the volume control counterclockwise
to the minimum before starting to play the audio
source: increase the volume gradually to an appro-
priate level after the playback has started.
Table of Contents
Cautions .....................................................................1
Introducing the YST-M40 Speaker System............2
Controls & Connectors.............................................3
Troubleshooting ........................................................4
Non skid pad ..............................................................4
Specifications .............................................................5
