Donner A40D User Manual - Page 15
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TROUBLESHOOTING
* Sometimes something wrong may be caused by other devices, please check other devices or the use of power supply equipment.
PROBLEM
No power
No sound or low sound
Only one speaker system
produces sound
The remote control does not
work
The unit switches back to Standby
mode automatically
INSPECTION
Whether the device is connected
Is the setting of the connecting device correct
Whether the connection line is corrected
Is the volume setting in the correct position
Whether the power is on
Whether the signal input line is connected properly
Is the remote control battery inserted properly
Is the remote control battery can be used properly
In case of no operation within 30 minutes, it will automatically
switch to Standby mode for power saving.
10
SOLUTION
Please connect the power cord plug
to the AC power outlet.
Please set the sound source and
volume of the device correctly
Please connect the cable properly
Please adjust the volume knob
clockwise to the appropriate position
Turn the power on
Connect the audio cable again
Re-insert the battery properly
Replace with the new battery
Please press the volume knob or the
power button of the remote control