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E-20
Troubleshooting chart (continued)
Maintenance
■ Cleaning the cabinet
Periodically wipe the cabinet with a soft cloth and a diluted
soap solution, then with a dry cloth.
Caution:
● Do not use chemicals for cleaning (gasoline, paint thinner,
etc.). It may damage the cabinet.
● Do not apply oil to the inside of the unit. It may cause
malfunctions.
■ Cleaning the CD pickup lens
In order to ensure proper operation of the CD player,
preventative maintenance (cleaning of the laser pickup
lens) should be performed periodically. Lens cleaners are
commercially available. Contact your local CD software
dealer for options.
■ Tuner
Symptom Possible cause
● The radio makes
unusual noises
continuously.
● Is the unit placed near the TV
or computer?
● Is the FM antenna or AM loop
antenna placed properly?
Move the antenna away from
the AC power cord if it is
located nearby.
■ Bluetooth
Symptom Possible cause
● No sound is heard. ● The unit is too far from the
Bluetooth audio source
device.
● The unit is not paired with
the Bluetooth audio source
device.
● Bluetooth sound
is interrupted or
distorted.
● The unit is too near to
a device that generates
electromagnetic radiation.
● There is an obstacle between
the unit and the Bluetooth
audio source device.
■ NFC
Symptom Possible cause
● NFC-enabled
device cannot
connect to
Bluetooth when
tapping on N-Mark.
● The unit is in Eco mode.
● NFC mode is disabled on your
device.
● Your device is in sleep mode.
■ Open Accessory
Symptom Possible cause
● No sound is pro-
duced.
● The device is not playing.
● The device is not properly
connected to the unit.
● The AC power cord of the unit
is not plugged in.
● Device is not
charging.
● The device is not making full
contact with the USB terminal.
■ USB
Symptom Possible cause
● Device cannot be
detected.
● Playback does not
start.
● There is no MP3/WMA le
inside the device.
● The device is not properly
connected.
● A MTP device is connected.
● The device contains AAC
le only.
● A copyright-protected WMA
or false MP3 le is being
played back.
● Wrong time
display.
● Wrong le name
display.
● A Variable Bitrate les are
being played back.
● The File Name was written in
other than English characters.
■ If problem occurs
When this product is subjected to strong external
interference (mechanical shock, excessive static
electricity, abnormal supply voltage due to lightning, etc.)
or if it is operated incorrectly, it may malfunction.
If such a problem occurs, do the following:
1 Set the unit to the standby mode and turn the power
on again.
2 If the unit is not restored in the previous operation,
unplug and plug in the unit again, and then turn the
power on.
Note:
If neither operation above restores the unit, clear all the
memory by resetting it.
■ Factory reset, clearing all memory
1 Press the ON/STANDBY button to turn the power on.
2 Press AUDIO IN (USB) button (main unit) repeatedly or
AUDIO IN button (remote control) to enter Audio In mode.
3 Press button (main unit) once.
4 Press and hold button (main unit) until “RESET” appears.
5 Unplug and plug in the main unit again.
Caution:
This operation will erase all data stored in memory including
clock, timer settings, tuner preset, and CD program.
■ Condensation
Sudden temperature changes, storage or operation in an
extremely humid environment may cause condensation
inside the cabinet (CD pickup, tape heads, etc.) or on the
transmitter on the remote control. Condensation can cause
the unit to malfunction. If this happens, leave the power on
with no disc (or cassette) in the unit until normal playback
is possible (about 1 hour). Wipe off any condensation on
the transmitter with a soft cloth before operating the unit.
■ Before transporting the unit
Remove the USB memory device and disc from the unit.
Then, set the unit to the power standby mode. Carrying the
unit with USB memory device left connected or discs left
inside might damage the unit.
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