auna Yellowstone Bedienungsanleitung Seite 17

When the battery voltage is less than 3.0V, the low battery indication symbol will be displayed on the dis-
play. The radio will not operate in a low battery condition.
The TK-669B includes an audio output jack. This allows you to listen with headphones or connect to an
auxiliary input source, such as an amplifier. CAUTION: Guard your ears against hearing damage. When liste-
ning with headphones, start at the lowest volume and gradually increase until you can hear it comfortably
and clearly.
• Avoid extended play at very high volume as it may impair your hearing.
• If you experience ringing in your ears, reduce the volume or shut off the unit.
• Keep the volume at a reasonable level even if your headset is an open-air type designed to allow you
to hear outside sounds. Please note that excessively high volume may still block outside sounds.
If the unit experiences a low voltage, it is possible that the internal micro-controller may lock up and the
unit will not respond to any commands from the panel controls. In this event, use a straightened paper
clip, toothpick or similar objects to press the RESET button located underneath the battery in the battery
compartment. The reset operation clears the system memory to factory default, and all of your previous
settings will be erased.
CAUTION: Do not use a sharp or pointed object to press the reset button. It may damage the reset switch
inside the unit.
• Periodically charge the battery to extend battery life.
• Switch off power after radio use to extend battery life
• Remove the battery or reinsert the plastic battery pull tab for extended storage
The battery is a rechargeable 3.7V / 600 mAh lithium ion battery. To replace the battery, open the battery
compartment cover (Figure 2) by squeezing the tab.
NOTE: Only replace with rechargeable 3.7V lithium battery. Replacing the battery with a non-rechargeable
battery may damage the unit.
Low Battery Indication
AUX / Headphones
Resetting the unit
Battery maintenance
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