Yamaha DD-50 Owner's Manual - Page 5
Setting up the DD-50 - sounds
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Setting up the DD-50 Power Supply Your DD-50 will run either from batteries or an optional power adaptor. Follow the instructions below according to the power source you intend to use. OPEN OPEN Using an AC-Adaptor (sold separately) Installing Batteries Connect the optional power adaptor (Yamaha PA-3 or PA-3B) to the DC IN 10-12V jack located on the unit's left side panel, and plug the AC power adaptor into an AC power outlet. 1 Open the battery compartment cover on the underside of the DD-50. DC IN 10 - 12V PA-3/ PA-3B AC power socket • Do not attempt to use an AC adaptor other than the PA-3 or PA-3B. Use of an incompatible adaptor may result in the instrument becoming hot or, irreparable damage to the DD-50. It may also result in fire. If the instrument is damaged due to use of an incompatible adaptor, YAMAHA is not responsible for the damage. 2 Insert six "C" size, R14, SUM-2 or equivalent batteries. When inserting the batteries, be careful to follow the polarity markings in the illustration. When Using Headphones (About the PHONES/AUX OUT Jack) An optional set of stereo headphones (such as the Yamaha HPE-150 or HPE-3) can be connected to the PHONES/AUX OUT jack located on the side panel. When a pair of headphones is connected to the jack, the DD-50's internal speakers will switch off automatically, perfect for private practice or late night playing. If you want to use an external sound system, the headphone jack can also be used to connect the DD-50 to a stereo system or mixing console. (Use a standard plug n pin plug adaptor to connect the DD-50 to a stereo system.) * Turn the power OFF on all equipment before making any connections. 3 Close the battery compartment cover securely. • Power will be automatically drawn from the AC adaptor if an optional AC adaptor is connected while batteries are installed in the instrument. • It is recommended that you replace worn batteries as soon as possible. When battery voltage drops, the DD-50's display will dim and/or the sound will become distorted. When this occurs, replace the batteries with a complete set of six new batteries of the same type. • NEVER mix old and new batteries, different types of batteries (alkaline, magnesium, etc.), batteries by different makers, or batteries from the same maker but of different types. Misuse may cause the instrument to become hot, result in fire, or battery leakage. • Also, to prevent damage due to battery leakage, remove all of the batteries from the instrument when it is not to be used for an extended period of time. Batteries left in an unused instrument will also loose their power over time. 3