DAPAudio MA45CD, Руководство по эксплуатации продукта

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13
Problem Cause Solution
No lights illuminates when the
POWER button is pressed. 1. Is the unit plugged into a live
outlet?
2. Was the AC fuse opened?
3. Was the DC fuse opened?
1. Load outlet
2. Replace AC fuse
3. Replace DC fuse
No sound is heard 1. Check if the audio source
was connected?
2. Was the audio source
operating?
3. Is the volume turned up?
4. Are the speakers connected
properly?
1. Connect to audio source output.
2. Operate the audio source.
3. Turn up the volume.
4. Correctly connect speakers.
The unit’s output is intermittent
or continuously buzzing Check if the AC power supply is
correct
No output from one or more
channels 1. Is the audio source
operating?
2. Is the volume turned up?
3. Are the cables not defective? 1. Operate the audio source.
2. Turn up the volume.
3. Replace the signal cable.
Fuse often blown 1. Was the volume turned to full?
2. Were the speakers
connected correctly?
3. Were the wires of the speaker
connected correctly?
4. Is the impedance of the
speakers correct?
5. Is the speaker good?
1. Turn down the level volume.
2. Connect the speaker correctly.
3. Connect the speaker wires
correctly.
4. Connect the matching output
terminal or replace with the
matching impedance.
5. Replace the speaker.
No display of CD player or
Radio Is the CD player or Radio power
switch turned on? Turn on the power switch.
No output of the CD player 1. Is the volume turned up?
2. Is the CD player paused? 1. Turn up the CD volume
2. Press the PLAY/PAUSE again.
The CD player doesn’t react
to any key control and the
display is not functioning
properly. 1. Is the rated voltage correct ?
2. Did you frequently turn the CD
power switch on/off?
1. Change the rated power
voltage into the right one
2. Turn the CD power off and after
10 seconds turn it on again
The radio can't store a radio
station in its memory Was the memory store operation
correct Reset it, according to the correct
operating and procedure
The radio can't receive a
radio station 1. Is the antenna connection
correct?
2. is the unit placed in the right
position?
1. Connect the antenna correctly.
2. Adjust the position of the unit.
Or extend the antenna correctly
Overload LED keeps blinking 1. Is the connection of the
output terminal ok?
2. Is the connected load too
heavy?
3. Is the input signal too loud? 1. Connect the speakers to the
proper output terminal.
2. Reduce the total load and keep
the impedance matching.
3. Adjust the signal level control