User`s manual

Master Audio

Xcellence “E “Series. Ver1.0 Nov12

Fig.21. X15LTE flying points

12. TROUBLESHOOTING

No power

 Check the device is connected to mains

 Check mains cable is in good condition.

 The thermal fuse may be activated. The replacement of this fuse must be carried

out by specialized personnel as it is an internal component of the amplifier module.

No sound

 Check with the indicators that the signal is being sent from the mixer.

 Check that the signal cables are in good condition and connected at both ends

 The mixer output level must not be at minimum.

 Check that the mixer in not in Mute mode.

Distorted output signal

 The system is being saturated with a very high input signal, frequently caused by

the same mixer. Check the output level or mixer gain channels.

Poor bass levels

 Check the polarity on the signal connections between the mixer and cabinets. If any

of the Pins (1, 2 or 3) have been inverted at the cable ends, this will cause significant

performance and sound quality loss.

Noise and Hum