Yamaha YST-FSW150 Owner's Manual - Page 11

English Troubleshooting Refer to the chart below if the unit does not function properly. If the problem you are experiencing is not listed, or if the instructions fail to help you resolve the problem, disconnect the power cable and contact your authorized Yamaha dealer or service center. Problem Power is not supplied even though the POWER button is set to the ON position. No sound. Sound level is too low. Cause Remedy The power plug is not securely connected. Turn the POWER button to OFF/ SYSTEM, and then connect the power plug securely. The VOLUME control is set to (0). Turn up the volume. A subwoofer cable is not connected securely. Connect a subwoofer cable securely. You are playing a sound source that includes inadequate bass frequencies. Play a sound source that includes more bass frequencies. The sound level has been diminished by standing waves. Reposition the subwoofer, or break up the parallel wall surface by placing bookshelves or other large objects along the wall. The input signal is too small. Turn up the volume. No signal from the subwoofer output terminal of the component. Check the speaker mode setting on the component. 7 En