E-20
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service center.
■ General
Symptom Possible cause
● 7KHFORFNLVQRWVHWWR
WKHFRUUHFWWLPH
● A power failure occurred.
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SDJH
● :KHQDEXWWRQLV
SUHVVHGWKHXQLWGRHV
not respond.
● Set the unit to the power
VWDQGE\PRGHDQGWKHQ
WXUQLWEDFNRQ
● If the unit still
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5HIHUSDJH
● No sound is heard. ● 7KHYROXPHOHYHOVHWWR
“Min”.
● The headphones are not
connected.
● 7KHVSHDNHUZLUHVDUHQRW
connected.
● 7KHXQLWLVWRRIDUIURPWKH
Bluetooth stereo audio
source device.
● The unit is not paired with
the Bluetooth stereo audio
source device.
■ Remote control
Symptom Possible cause
● 7KHUHPRWHFRQWURO
does not operate.
● 7KH$&SRZHUFRUGRIWKH
unit is not plugged in.
● 7KHEDWWHU\SRODULW\LV
wrong.
● 7KHEDWWHU\LVGHDG
● The distance or angle is
incorrect.
● 7KHUHPRWHFRQWUROVHQVRU
receives strong light.
■ Bluetooth
Symptom Possible cause
● No sound is heard. ● 7KHXQLWLVWRRIDUIURPWKH
Bluetooth stereo audio
source device.
● The unit is not paired with
the Bluetooth stereo audio
source device.
● Bluetooth sound
is interrupted or
distorted.
● The unit is too near to
a device that generates
HOHFWURPDJQHWLFUDGLDWLRQ
● 7KHUHLVDQREVWDFOH
EHWZHHQWKHXQLWDQGWKH
Bluetooth stereo audio
source device.
■ NFC
Symptom Possible cause
● 1)&HQDEOHGGHYLFH
cannot connect to
Bluetooth when
WDSSLQJRQ10DUN
● 7KHXQLWLVLQ(FRPRGH
● NFC mode is disabled on
your device.
● Your device is in sleep
mode.
■ Open Accessory
Symptom Possible cause
● No sound is
produced.
● 7KHGHYLFHLVQRWSOD\LQJ
● 7KHGHYLFHLVQRWSURSHUO\
connected to the unit.
● 7KH$&SRZHUFRUGRIWKH
unit is not plugged in.
● 'HYLFHZLOOQRW
charge.
● 7KHGHYLFHLVQRWPDNLQJ
IXOOFRQWDFWZLWKWKH86%
WHUPLQDO
■ CD player
Symptom Possible cause
● 3OD\EDFNGRHVQRW
start.
● 3OD\EDFNVWRSVLQ
WKHPLGGOHRULVQRW
SHUIRUPHGSURSHUO\
● The disc is loaded upside
down.
● 7KHGLVFGRHVQRWVDWLVI\
the standards.
● The disc is distorted or
scratched.
● 3OD\EDFNVRXQGVDUH
VNLSSHGRUVWRSSHGLQ
WKHPLGGOHRIDWUDFN
● The unit is located near
H[FHVVLYHYLEUDWLRQV
● 9HU\GLUW\GLVFKDVEHHQ
used.
● &RQGHQVDWLRQKDVIRUPHG
inside the unit.
■ PC In
Symptom Possible cause
● No sound is heard. ● 3&LVQRWWXUQHGRQ
● Application software is not
activated
■ Optical In
Symptom Possible cause
● No sound is heard. ● No input signal. The
FRQQHFWHGHTXLSPHQWLVQRW
turned on.
● 6LJQDOVRWKHUWKDQ/LQHDU
3&0FDQQRWEHUHFRJQL]HG
● 3RRUFDEOHFRQQHFWLRQWR
WKHWHUPLQDOV
■ USB
Symptom Possible cause
● 'HYLFHFDQQRWEH
detected.
● The device does not
FRQWDLQDQ\03:0$
¿OHV
● 7KHGHYLFHLVQRWSURSHUO\
connected.
● ,WLVDQ073GHYLFH
● 7KHGHYLFHFRQWDLQV$$&
¿OHVRQO\
● 3OD\EDFNGRHVQRW
start.
● :0$¿OHLVFRS\ULJKW
protected.
● 'HYLFHFRQWDLQVDIDOVH
03¿OH
● :URQJWLPHGLVSOD\
● :URQJ¿OHQDPH
GLVSOD\
● $YDULDEOHELWUDWH¿OHLV
EHLQJSOD\HGEDFN
● 7KH¿OHQDPHLVZULWWHQ
LQ&KLQHVHRU-DSDQHVH
characters.
Troubleshooting chart