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Insert the six batteries, being careful to follow the polar-

ity markings on the bottom panel.

Replace the compartment cover, making sure that it locks firmly in

place.

When the batteries run down and are no longer able to operate the

QY20, the sound may become distorted and the display shown to the

left will appear.

When this display appears, replace the batteries with a complete set

of six new batteries. NEVER mix old and new, or different types of

batteries (e.g. alkaline and manganese)!

To prevent possible damage due to battery leakage, remove the batteries

from the instrument if it is not to be used for an extended period of time.