US Blaster Black Reference Series User Guide
11
8. Solving problems
There is no sound coming from the USB 4022.
Check that the center unit is connected to the mains power supply, and that the main switch and the
switch for standby mode are in the correct positions. The Power LED should be lit on the front panel.
Then check that the speakers and the cables from the external media player are connected correctly.
Finally, you can also check that the sound is on (is the MUTE LED lit?), and check that the volume is
loud enough.
If the USB 4022 is still not working, please contact your supplier!
The Power LED is not lit
If the USB 4022 is connected to the mains power supply, the switches are on and the Power LED is
not lit, check the fuse.
The fuse is below the input for the mains power cable. You can
open the fuse holder with a screwdriver. Let you supplier check
the fuse; they will be able to give you the correct replacement, if
it is defective.
The subwoofer buzzes
A buzzing subwoofer is usually caused by the center unit not being properly earthed. Check that the
unit is connected to an earthed plug socket. Also check that the cable from the external media player
to the USB 4022 center unit is not defective (does not have a mass cable).
Summary of Contents for USB 4022
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