Preparation; Power Supply; Using An Optional Ac Power Adaptor; Using Batteries - Yamaha Portatone PSR-410 Owner's Manual

Preparation

The illustrations here are not available.
Your PSR-410 will run either from an optional power adaptor or batteries*. Follow the instructions below
according to the power source you intend to use.
For battery operation the PSR-410 requires six 1.5V SUM-1, "D" size, R-20 or equivalent batteries.
When the batteries need to be replaced the volume may be reduced, the sound may be distorted, and other
problems may occur. When this happens, turn the power off while either the batteries are replaced or an AC
adaptor is connected.
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Plug the DC output cable from an optional Yamaha PA-3, PA-4, PA-5, PA-
5B, or PA-40 AC Power Adaptor into the DC IN jack on the rear panel of the
PSR-410, then plug the Power Adaptor (or the AC cable of the Power Adaptor)
into a convenient wall AC power socket. The internal batteries are automati-
cally disconnected when an AC Power Adaptor is used.
When the batteries fail, replace them as follows:
Z
Open the battery compartment cover located on the instrument's bottom
panel.
X
Insert the six new batteries, being careful to follow the polarity markings on
the inside of the compartment.
C
Replace the compartment cover, making sure that it locks firmly in place.
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