Mission MS-8, MS-10 Mission MS-DUOPowered Subwoofer, Troubleshooting, Loudspeaker Maintenance

The Mission MS-DUOPowered Subwoofer

b	LINE LEVEL
			CROSSOVER
c	INPUT OUTPUT	VOLUME FREQUENCY
			55Hz	65Hz	PHASE
	LEFT		45Hz	75Hz
					0°	180°
			35Hz
d				85Hz
e	RIGHT				ON	OFF
		0	10		AUTO
					POWER
	SPEAKER LEVEL INPUTS
f			MS-DUO
			Active Subwoofer
	R		L		N21090

g

h

i
j			WARNING:
1)		TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK,
		DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE
	Serial Number
			Power Inlet
			Power
1!
		FUSE T3.15AL250V	OFF ON
		AC220-240V 50Hz 150W
		CAUTION:	ATTENTION:
		DISCONNECT SUPPLY CORD	REPLACER LE FUSIBLE.
		BEFORE CHANGING FUSE.	UTILISER UN FUSIBLE DE
		REPLACE ONLY WITH SAME	RECHANGE DE MEME TYPE
		TYPE FUSE AND RATING	ET CALIBRE
NUMERICAL KEY			g Crossover Frequency Control
b Phase Control			h Auto Power Switch
c Line Level Outputs			i Mains Power Indicator
d Line Level Inputs			j Mains ON/OFF Switch
e Volume Control			1) IEC Mains Input Socket
f Speaker Level Inputs			1! Mains Power Fuse

Troubleshooting

Before investigating a problem, always switch off the system at the mains.

If your system is not working properly please work through this checklist before returning a unit to your dealer.

Symptom	Possible Cause
No Sound	System not switched on; Speaker cables shorting terminals out; Wrong source selected
Sound lacks bass content	Subwoofer not switched on;
Bass reproduction indistinct	Subwoofer phase incorrect; Subwoofer crossover control too low
Excessive bass distortion at low volumes	Subwoofer level set too high; LFE level set too high; Subwoofer incorrectly wired
Excessive or distorted bass at high levels	System level set too high; Bass control set too high; Subwoofer too close to room corners
Distorted / rattling sounds at high levels	System level too high; Objects on subwoofer; Objects too close to subwoofer
Popping or thumping from the subwoofer	System level set high; Subwoofer level set too high; LFE level set too high
Television picture colour is distorted	Subwoofer too close to TV. (Switch off system and TV. Move units away. Leave 15 mins. Switch on.

Loudspeaker Maintenance

Subwoofers should only ever be cleaned with a soft dry cloth to remove fingermarks etc..

Never touch subwoofer drive units as they can be damaged by improper handling.

Never use a vacuum cleaner to clean a subwoofer grille. Brush it carefully by hand with a soft brush.

When cleaning the floor under a subwoofer; switch it off, unplug it from the mains supply then lift it clear of the floor and move it to another location. Replace the subwoofer after cleaning.

Product Service

Should a fault occur with your subwoofer, please pack it correctly, using the original packing, so you can ship it safely..

Product for service should be returned to the appointed dealer from whom you purchased the product. If you experience difficulties or there is no Mission dealer in your area, contact the Mission distributor for your country or the Main Service Centre for your region.

Authorised Service Centres

UK

International Audio Group

Preliminaries

Open the carton and remove all the top packing pieces. Lift the subwoofer out carefully. DO NOT lift the subwoofer out of the carton using the protective bag. The unit is heavy; if you cannot

manage it easily, get assistance.

Retain the packing materials. If you decide not to keep the packing, please dispose of it having regard to any recycling regulations in your area. Please retain the user manual. If you transfer this equipment to a third party, please ensure all the instructions are passed on with the product.

Power Connections

The subwoofer is factory set to operate from the mains voltage marked on the amplifier panel. Before connecting check this voltage is correct for your mains supply.

￿230 volt products - 220 V to 240 V

￿115 volt products - 110 Vs to 120 V

If you move to an area with a different mains supply, consult your dealer for advice.

IUnit 4, St Margaret’s Way,

Stukeley Meadows Industrial Estate

Huntingdon, Cambs, PE29 6EB

Tel:+44 (0)1480 447700 Fax: +44 (0)1480 431767

ASIA

IAG. Room 2310 - 2311, Press Building, Shennan Road C,

Shenzhen, China.

Tel: +86-755-82091200 Fax: +86-755-82091205

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