Troubleshooting - Tascam CD-400U Owner's Manual

9 – Troubleshooting
If you are having trouble with the operation of this unit, please try the following before seeking repair.
If these measures do not solve the problem, please contact the store where you bought the unit or TASCAM customer support service.
The unit will not turn on.
0 Confirm that the power plug and other connectors are insert-
ed completely.
Media are not recognized.
0 Confirm that the SD card or USB flash drive is inserted secure-
ly.
0 Stop playback or recording once.
The unit does not function.
0 Confirm that the lock function is not on.
Remote control (RC−CD400) does not work.
0 Is the remote control reception setting set to Lock?
Playback is not possible.
0 If you are trying to play a WAV file, confirm that it uses a sam-
pling frequency (44.1/48 kHz) and a bit depth (16-bit) that are
supported by this unit.
If you are trying to play an MP3 file, confirm that it uses a
sampling frequency (44.1/48 kHz) and a bit rate (32–320 kbps
or VBR) that are supported by this unit.
CD cannot be played.
0 If you are trying to play a data CD that contains MP3 files,
confirm that their bit rates are supported by this unit.
0 Confirm that the disc is not scratched or dirty.
All the tracks on an SD card or USB flash drive cannot be
played back.
0 Confirm that it is not in folder playback mode.
No sound is output.
0 Check connections with the monitoring system again. Check
the volume of the amplifier as well.
There is noise.
0 Confirm that the connection cables do not have contact is-
sues.
The remote control (RC-CD400) does not function.
0 Confirm that a battery is installed and has not died.
Nothing appears on the display or it is dim.
0 Confirm that the display brightness setting is not set to dim.
(see "Adjusting the display brightness" on page 20)
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TASCAM CD-400U
Sound breaks up or is noisy.
0 Are there any wireless LAN devices, other Bluetooth devices,
microwave ovens or similar equipment nearby?
Keep such devices as far away as possible during use.
0 Try reducing the distance between this unit and the other
Bluetooth device. Try changing the positions of this unit and
the other Bluetooth device.
0 The operation of apps other than for music playback on the
smartphone could cause the sound to break up. In this case,
stop operation of apps other than the one used for music
playback.
Cannot connect or communication is interrupted.
0 Confirm that the other Bluetooth device power is on and that
its Bluetooth function is on.
0 Confirm that the other Bluetooth device is not too far away.
Are there walls or other obstacles, for example, between this
unit and the other Bluetooth device?
The body of this unit itself could interrupt transmission if the
other Bluetooth device is behind it.
Try changing the positions of this unit and the other Blue-
tooth device.
0 Try turning this unit's power off and on again.
0 Remove the CD-400U pairing record from the other Blue-
tooth device, and try pairing the unit with that Bluetooth
device again.
Cannot pair with another device.
0 Confirm that the other Bluetooth device supports A2DP and
AVRCP.
0 Confirm that the other Bluetooth device is in a state that al-
lows transmission. For details, check the operation manual of
that Bluetooth device.
0 Turn the power off for both this unit and the other Bluetooth
device once, turn them both on again and try pairing them.
0 Turn off Bluetooth devices other than the one that you are
trying to pair with.
0 Remove the CD-400U pairing record from the other Blue-
tooth device, and try pairing the unit with that Bluetooth
device again.
Cannot receive radio or reception is poor.
0 Select a broadcast station.
0 If reception is poor, try repositioning the antenna.
0 If a TV is near the unit, turn the TV off.
0 Reception conditions are poor in reinforced concrete build-
ings, basements and similar locations. Place this unit and its
antenna near a window facing outside the building, for ex-
ample.
Stereo FM broadcasts become mono.
0 Confirm that the FM mode is not set to mono reception.