Denon DN-F450R Owner's Manual Page 48

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  • TROUBLESHOOTING
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Getting started
Part names
and functions
Connections Control function Specifications IndexSetting defaults Recording Play
USB mode and
the computer
File/Folder
settings
41
Information
If a problem should arise, first check the following:
1. Are the connections correct?
2. Is the set being operated as described in the owner’s manual?
3. Are the external devices (mixer and player) operating properly?
If this unit does not operate properly, check the items listed in the table below.
If the symptom is not covered on the check list, contact your dealer or service centers.
Service centers are listed at http://www.d-mpro.com.
GGeneralH
Symptom Cause/Solution Page
Does not turn on the
power.
Check whether the power cord is firmly connected to the AC
adaptor.
8
GRecordingH
Symptom Cause/Solution Page
Cannot perform
recording.
The SD card could be the cause of this trouble. Replace the SD
card with another one and retry.
16
Although the music
has been recorded
properly, no sound is
reproduced when it is
played back.
Make sure that the recording level (REC LEVEL) is not set to
MUTE.
Make sure that the recording settings (such as input source) and
all connections with external devices are correct.
(For example, make sure to set the audio input source for
recording to "Unbalance" and connect an external device to the
analog input (RCA) terminal. Otherwise, the unit will record the
music in silent mode.)
16
7
There are sound
cutoffs between files.
There may be minor sound cutoffs between files depending on
the capacity of a recorded file.
12, 17
There are sound
cutoffs during
recording to an SD
card.
If an SD card is formatted on a computer, it may cause sound
cutoffs during recording. When you use an SD card with this unit,
make sure to format the card on this unit.
15
There is a loud noise
in the recorded file.
Check the level meter and Level Over Display (LEVEL) to make
sure that the recording level does not exceed 0dB.
Make sure that the electrical contacts of the cable connections
are not poor.
16
7
GPlaybackH
Symptom Cause/Solution Page
Cannot perform
playback or does not
recognize a file.
The SD card could be a cause of this trouble. Copy a file to another
SD card and retry playback.
Check whether this unit supports the format of the playback file.
Check if the target folder is located right under the root directory in
the SD card. Folders in other places are not recognized.
Check whether the number of folders does not exceed 32. This
unit recognizes up to 32 folders.
23
23
No sound is produced
from the headphones.
Make sure that the headphone volume level adjustment switch
(LEVEL) is not set to MIN.
Check whether sound is reproduced from the headphones by
using another audio file or SD card.
8
Poor sound quality
for playback on a
computer.
Check the quality of the sound card and program of your computer.
Check the frequency conversion program.
This unit can record audio files using sampling frequencies of 48
kHz Some of the computer programs convert the frequency to 44.1
kHz (a sample rate converter is used). Use a higher quality sample
rate converter.
Cannot read the files
on a computer.
Check the functions of the computer program. Some playback
and editing programs may not support the recording format of this
unit.
If the operation of this unit is unstable, turn off the power and
disconnect the power cord. Then, restart the unit.
GOperationH
Symptom Cause/Solution Page
Cannot add a character
during renaming.
If the maximum number of characters has been already entered,
you cannot add any more characters. To add a character, delete
characters before adding.
13
Cannot delete a folder. When there is only one folder on a SD card, you cannot delete
this folder.
24
Troubleshooting
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