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information (blinking) and then rotate the Volume Knob to adjust
the minutes. The unit will display MP3 playback information if no
operation is performed within 5 seconds.
Others
AUX IN
Press the PWR/MOD key to switch to AUX IN status, press the PWR/
MOD key again to resume.
Connecter direction
Antenna socket
Main engine
Red
Right RCA output
White
Left RCA output
Connect
Yellow Wire
positive pole
White wire
Front left
speaker
White and
black wire
Green wire
Rear left
speaker
Green and
black wire
Connection diagram of 12V
2.3. Troubleshooting
Fault
Reasons
Power is off 1. Power supply is not
correctly connected.
2. Fuse is broken or power
wire is open.
No display
1. Yellow wire is not
on LCD
connected with positive
pole.
2. Broken yellow wire fuse.
No sound
1. No power supply.
2. Speaker wire in open
circuit.
3. No compatible music
in the SD/MMC card or
U-disk.
4. The SD/MMC card
contacts or the U-disk
is dirty.
Blue wire
Connect to
automatic antenna
Red wire
Connect to
ignition switch
Black wire
Connect
negative pole
Grey wire
Front right
speaker
Grey and
black wire
Purple wire
Rear right
speaker
Purple and
black wire
Solutions
Correctly connect
power supply.
Check fuse or power
wire.
Ensure the yellow
wire is connected with
positive pole. Replace
the yellow wire fuse.
Replace power supply.
Check speaker wires.
Check the storage of
SD/MMC card
or U-disk.
Clean it with ethyl
alcohol.
12
car radio
Low sound
1. Power resistance
or not clear
is high.
2. Antenna is not well
connected.
Mono
1. One channel of the
speaker wire is open
circuit.
2. The amplifier circuit
is broken.
Note: Technical data is subject to change without prior notice.
3. TECHNICAL SPECIFICATIONS
FM
Frequency range
Maximum sensitivity
Signal to noise ratio
Stereo separation
MP3
Supported format
Supported memory
Frequency response
Signal to noise ratio
Channel separation
Voltage harmonic distortion
(1 kHz)
Playback Stereo channels
balance
General
Voltage
Output power
Speaker impedance
Main frame dimensions
EN
KBCR3886
Replace the battery.
Tighten the antenna
plug.
Check and connect
speaker wire.
Replace circuit.
87.5Hz - 108MHz
≤37dBf
≥40dB
≥20dB
MP3
U disk, SD/MMC/TF card
(100Hz ~ 10 KHz) ±8dB
≥50dB
≥30dB
≤5%
≤3dB
DC 12V
25W*4
4Ω ~ 8Ω
178mm (W) x 50mm (H) x 98mm
13
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