Note: Technical data is subject to change without prior notify.
LCD
doesn’t
display
1.
Yellow wire is not connected
with b
2.
Fuse of red wire is open
Assure yellow wire is
connected with b
Replace fuse
No sound
1.
No power supply
2.
Speaker wire is open circuit
3.
SD/MMC card, U disk don’t
have
song
with
corresponding format.
4.
SD/MMC card, U disk golden
finger is dirt which causes
bad contact.
Connect the power wire.
Connect speaker wire.
Check the contents of
SD/MMC card, U disk.
Clean with absolute
alcohol.
Low sound (not
clear)
1.
Power internal resistance is
high.
2.
Antenna is bad contact.
Replace the power
supply
Tighten the antenna
plug.
Mono track
1.
One channel of speaker wire
is open circuit
2.
Amplifier integrated circuit is
damaged.
Connect speaker wire
Replace the IC of
amplifier
5. Trouble shooting
