| Symptom | Potential Cause(s) & Simple Checks | | :--- | :--- | | | 1. Ensure the power cord is securely connected to both the speaker and a live power outlet. 2. Check that the power switch is in the "ON" position. 3. Verify the outlet is working (test with another device). 4. Check the fuse. If blown, replace with a fuse of the identical type and rating . If it blows again, the unit requires service by a qualified technician. | | No Sound | 1. Confirm the Master Volume and source device's volume are turned up. 2. Check the input source and its cables. Try a different cable or source. 3. Ensure the correct input (Mic/Line) is selected for your source. 4. Check for any active mute or signal processing that might be engaged. | | Distorted Sound | 1. Reduce the Master Volume on the speaker. The input signal may be too high. 2. Reduce the bass or treble EQ controls. 3. If using a mixer, ensure its output level is not in the red (clipping). 4. As a last resort, check that nothing is blocking the woofer or horn. | | Hum or Buzz | 1. Try plugging the speaker into a different AC outlet, preferably on a separate circuit from lighting or other heavy equipment. 2. Check all audio cables for damage and ensure they are properly shielded. | | Intermittent Output | 1. Visually inspect and gently wiggle the audio and power cables at both ends to check for a loose connection or faulty cable. 2. As a safety measure, power off the unit and check for any loose internal connections if you are qualified. Otherwise, seek service. |