Panasonic RR-US750 Benutzerhandbuch

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RQT9124
39
Other
s
Symptom
Checkpoints
Playing
There is no sound from the 
earphones or it is difficult to 
hear or noisy.
• Ensure the plug is inserted firmly.
• Wipe the plug clean.
Sound is distorted.
• Please lower the microphone sensitivity (➜ page 14) or keep the 
distance from the recording sound source.
No sound from the speaker.
• There is no sound when you have connected earphones.
I hear noises.
• Move a mobile telephone away from this unit when you use the two in 
the same area.
Recorded sounds contain noise that 
makes it difficult to hear sounds.
• Reduce noise (➜ page 19). Noise is reduced and listening may 
become easier.
Others
The power cannot be turned 
on.
• The battery may have run out. When you use a rechargeable battery, 
charge battery (➜ page 5). When you use a dry-cell battery, replace 
the battery with a new one.
The power automatically 
turns off.
• When you do not operate for more than approx. 15 minutes, the 
power automatically turns off. When any button is pressed or [HOLD] 
switch is operated, the power turns on (➜ page 6).
Cannot delete a file or folder. • The file is protected (➜ page 13).
• The folder is already empty.
This unit is not recognised by 
a computer.
• The OS on the computer may not be compliant with this unit (➜ page 34).
• The password has been set (➜ page 25).
• Is a battery in this unit? If it is not, insert a battery.
• When the voltage of the battery is too low, “
” is displayed and the 
computer cannot recognise this unit (➜ page 37).