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TROUBLESHOOTING
No power LED on control panel
Power LED is on but no other
LEDs and no output
Power light and output LEDs
lighting but no output
Bluetooth cannot connect
No audio from connected
Bluetooth device
USB player will not play audio from
media
Output is very loud or distorted
Output is working but at very low
level
Feedback from microphone
Amplifier overheating
Ensure IEC lead is in good condition and connected properly
If 24V DC power input is being used, check battery is charged
Check mains inlet fuse
Ensure POWER switch is on
Check input signals and condition of input connection leads
Check MASTER, MIC, LINE IN or MEDIA controls are turned up
Check speaker output terminals are connected correctly
Check if speakers are working (test on another amp if available)
Ensure that Bluetooth is enabled on sending device
Ensure that the sending device is within Bluetooth range (5-10m)
Check that Bluetooth is not connected to another device
If there are more than one Bluetooth devices, check each of them
Ensure that volume controls are not turned down on sending device
Check volume and Play/Pause buttons in case Bluetooth is muted
Press PLAY on transport controls
Check memory device is connected properly (remove and re-insert)
Check file types – standard compressed digital audio files required
Check if the SD or USB works on a PC or Mac for standard playback
Check level of input signal is not too high
Reduce MIC, LINE IN, MEDIA and/or MASTER level
Ensure line level input(s) are not connected via MIC input
Check input audio source level is not too low
Increase MIC, LINE IN, MEDIA and/or MASTER level
Check for quiet recording of media files on USB
Face microphone away from speakers and monitors
Turn down MIC and/or MASTER level
Ensure cooling vents are clear
Check that 8Ω speakers are not connected to 100V terminals
Ensure total 100V speaker wattage is lower than amplifier rating
Ensure that 100V and 8Ω speakers are not both connected
Ensure that total load connected to 8Ω output is not less than 8Ω
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