Read this before using this unit.• To assure the finest performance, please read this manual carefully. Keep it in a safe place for futurereference.• Install this unit in a cool, dry, clean place away from windows, heat sources, and sources of excessivevibration, dust, moisture and cold. Avoid sources of humming (transformers, motors, etc.). To preventfire or electrical shock, do not expose this unit to rain or water.• To prevent the enclosure from warping or discoloring, do not place this unit where it will be exposed todirect sunlight or excessive humidity.• Do not place this unit where foreign objects such as water drips may fall. It may cause a fire, or damageto this unit.• Do not attempt to clean this unit with chemical solvents as this may damage the finish. Use a clean, drycloth.• Do not attempt to modify or fix this unit. Contact qualified YAMAHA service personnel when anyservice is needed. The cabinet should never be opened for any reasons.Secure placement or installation is the owner’s responsibility.YAMAHA shall not be liable for any accident caused by improper placement or installation of this unit.■ Precautions