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4
MSR250 Owner’s Manual
• When turning on the AC power in your audio system, always turn on the
device LAST, to avoid speaker damage. When turning the power off, the
device should be turned off FIRST for the same reason.
• Do not insert your fingers or hands in any gaps or openings on the
device (vents, ports, etc.).
• Avoid inserting or dropping foreign objects (paper, plastic, metal, etc.)
into any gaps or openings on the device (vents, ports, etc.) If this
happens, turn off the power immediately and unplug the power cord
from the AC outlet. Then have the device inspected by qualified Yamaha
service personnel.
• Do not use the device for a long period of time at a high or
uncomfortable volume level, since this can cause permanent hearing
loss. If you experience any hearing loss or ringing in the ears, consult a
physician.
• Do not operate the device if the sound is distorting. Prolonged use in
this condition could cause overheating and result in fire.
• Do not rest your weight on the device or place heavy objects on it, and
avoid use excessive force on the buttons, switches or connectors.
Interference From Cell Phones
Using a cell phone near the speaker system can induce noise. If this occurs, move the cell phone further away from the speaker system.
Air blowing out of the bass reflex ports is normal, and often occurs when the speaker is handling program material with heavy bass content.
Always turn the power off when the device is not in use.
The performance of components with moving contacts, such as switches, volume controls, and connectors, deteriorates over time. Consult qualifi ed Yamaha service
personnel about replacing defective components.
Handling caution
XLR-type connectors are wired as follows (IEC60268 standard): pin 1: ground, pin 2: hot (+), and pin 3: cold (-).
Yamaha cannot be held responsible for damage caused by improper use or modifications to the device, or data that is lost or destroyed.
* This applies only to products distributed
by YAMAHA CORPORATION OF AMERICA.
IMPORTANT
Please record the serial number of this unit in the space below.
Model
Serial No.
The serial number is located on the bottom or rear of the unit.
Retain this Owner’s Manual in a safe place for future reference.
(Ser.No)
• The illustrations as shown in this manual are for instructional purposes only, and may be different from the ones on your equipment.
• The company names and product names in this manual are the trademarks or registered trademarks of their respective companies.
Included Accessories
• Owner’s Manual
• Power Cord
