Yamaha DVD-S520 Owner's Manual - Page 4
English, Caution, Laser Safety - service manual
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CAUTION: READ THIS BEFORE OPERATING YOUR UNIT. 1 To assure the finest performance, please read this manual carefully. Keep it in a safe place for future reference. 2 Install this unit in a well ventilated, cool, dry, and clean place with at least 2.5 cm (1 inch) above, behind and on the both sides of this unit - away from direct sunlight, heat sources, vibration, dust, moisture, and/or cold. 3 Position this unit away from other electrical appliances, motors and transformers to avoid humming sounds, do not place this unit where it may get exposed to rain or any kind of liquid to prevent fire or electrical shock. 4 Avoid extreme temperature swings or excessive use of humidifier in the room where this unit is installed to prevent condensation inside this unit, which may cause an electrical shock, fire, damage to this unit, and/or personal injury. 5 Do not cover this unit with a newspaper, a tablecloth, a curtain, etc. in order not to obstruct heat radiation. If the temperature inside this unit rises, it may cause fire, damage to this unit and/or personal injury. 6 Avoid installing is unit in a place where foreign objects and liquid might fall. It might cause a fire, damage to this unit and/or personal injury. Do not place the following objects on this unit: • Other components, as they may cause damage and/or discoloration on the surface of this unit. • Burning objects (i.e., candles), as they may cause fire, damage to this unit and/or personal injury. • Containers with liquid in them, as they may cause an electrical shock to the user and/or damage to this unit. 7 Do not operate this unit upside-down. It may overheat, possibly causing damage. 8 Do not use force on switches, controls or connection cables. Never pull the cables when disconnecting them. 9 Only voltage specified on this unit must be used. Using this unit with a higher voltage than specified is dangerous and may result in fire or other accidents. YAMAHA will not be held responsible for any damage resulting from the use of this unit with a voltage other than that specified. 10 Do not attempt to clean this unit with chemical solvents; this might damage the finish. Use a clean, dry cloth. 11 Disconnect the power cord from the wall outlet when not planning to use this unit for a long period of time, or during an electrical storm, as they may cause damage by lightning. 12 Do not attempt to modify or fix this unit. Contact the qualified YAMAHA service personnel when any service is needed. Cabinet should never be opened for any reasons. 13 Be sure to read 'TROUBLESHOOTING' section regarding common operating errors before concluding that this unit is faulty. NOTE: Pictures shown maybe different between countries. Never make or change connections with the power switched on. When playing DTS encoded CDs, excessive noise will be heard from the analog stereo outputs. To avoid possible damage to the audio system, the consumer should take proper precautions when the analog stereo outputs of the player are connected to an amplification system. To enjoy DTS Digital Surround™ playback, an external 5.1-channel DTS Digital Surround™ decoder system must be connected to the digital output of the player. LASER SAFETY This unit employs a laser. Due to possible eye injury, only a qualified service person should remove the cover or attempt to service this device. Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. CAUTION VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN. AVOID EXPOSURE TO BEAM (WARNING LOCATION: INSIDE ON LASER COVERSHIELD OR THE BACKPLATE OF SET) LASER Type Wave length Output Power Beam divergence Semiconductor laser GaAlAs 650 nm (DVD) 780 nm (VCD/CD) 7 mW (DVD) 10 mW (VCD/CD) 60 degree