Altec Lansing M604 manual Troubleshooting, Symptom, Possible Problem, Solution

Troubleshooting

Symptom	Possible Problem	Solution
No Power	The power supply isn’t connected to a wall outlet	Insert the barrel connector from the power supply into the DC connector on
LED is lit	and/or the power supply connector is not plugged	the back of the Altec Lansing M604. After this connection is made, insert the
(AC Operation).	into the power supply jack on the back of the Altec	power supply into a wall outlet.
	Lansing M604.
	The surge protector (if used) isn’t powered on.	If the power supply is plugged into a surge protector, make sure the surge
		protector is switched on.
	The wall outlet is not functioning.	Plug another device into the same wall outlet to confirm the outlet is working.
	The power isn’t turned on.	Turn on the Altec Lansing M604 by pushing the power button located on the
		top of the unit. A LED will light when the power is on.
No sound	The volume is set too low.	The “+” and “–” buttons on the top of the Altec Lansing M604 are the master
is coming		volume controls. Press and hold the “+” button to increase the volume.
from speakers.
		Check the volume level on alternate audio source device and set at mid-level.
	The Zune is not correctly seated into the docking	Turn off the Zune, remove it from the docking station, reseat it, and turn it on
	station.	again.
	If using an alternate audio source, the audio source is	• Connect an alternate audio source — such as a CD player, MP3 player, or
	not properly connected to the Altec Lansing M604 or	portable DVD player — to your Altec Lansing M604 by plugging one end of a
	there is a problem with the alternate audio source.	3.5mm stereo cable to the line out of your portable device (if it has one) or
		to the device’s headphone jack. Connect the other end to the input marked
		“AUX” on the back of the Altec Lansing M604.
		• Set the volume on the audio source at mid-level.
		• Set the volume on the Altec Lansing M604 at minimum level and adjust
		upward to a comfortable listening level.
There is a	The Zune is not correctly seated into the docking	Turn off the Zune, remove it from the docking station, reseat it, and turn it
crackling sound	station.	on again.
coming from
		• Connect an alternate audio source — such as a CD player, MP3 player, or
speakers.	If using an alternate audio source, the audio source is
	not properly connected to the Altec Lansing M604 or	portable DVD player — to your Altec Lansing M604 by plugging one end of a
	there is a problem with the alternate audio source.	3.5mm stereo cable to the line out of your portable device (if it has one) or
		to the device’s headphone jack. Connect the other end to the input marked
		“AUX” on the back of the Altec Lansing M604.
		• Set the volume on the audio source at mid-level.
		• Set the volume on the Altec Lansing M604 at minimum level and adjust
		upward to a comfortable listening level.
There is a	The operating system’s volume level is set too high.	Check the operating system volume level and decrease it if necessary.
crackling sound
coming from
speakers (when
connected to
PC or laptop).
The sound	The Altec Lansing M604’s volume level is set too high.	The “+” and “–” buttons on the top of the Altec Lansing M604 are the master
is distorted.		volume controls. Press and hold the “–” button to decrease the volume.
There is radio	The unit is too close to a radio tower.	Move the unit to see if the interference goes away.
interference.
Intermittent	The unit is located too close to a GSM cell phone.	Move the GSM cell phone away from the unit.
buzzing.
Speaker system	Static electricity, momentary interruption of power, or	Disconnect the AC power cord from the wall outlet, wait 20–30 seconds,
exhibits erratic	abnormal operating conditions may be responsible.	and reconnect.
or unexpected
behavior.
Controls do
not function.

3