Notes on Use

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If, after fully charging the battery pack, the battery power is still low, the battery pack may be reaching the end of its life and should be replaced.

You do not need to discharge the battery before recharging.

If you have not used the battery pack for a considerable amount of time, recharge the battery.

On Using the Headphone

Road safety – Do not use headphone while driving, cycling, or operating any motorized vehicle. It may create a traffic hazard and is illegal in some areas. It can also be potentially dangerous to play your headphone at high volume while walking, especially at pedestrian crossings. You should exercise extreme caution or discontinue use in potentially hazardous situations.

Preventing hearing damage – Avoid using headphone at high volume. Hearing experts advise against continuous, loud and extended play. If you experience a ringing in your ears, reduce the volume or discontinue use.

On Maintenance

Make sure to disconnect the power cord before cleaning the computer.

Avoid rubbing the LCD screen as this can damage the screen. Use a soft, dry cloth to wipe the LCD screen.

Clean the computer with a soft cloth lightly moistened with a mild detergent solution. Do not use any type of abrasive pad, scouring powder or solvent, such as alcohol or benzine.

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Sony PCG-838 manual On Using the Headphone, On Maintenance