Monitor Audio IWA-250 Owner's Manual

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7

Trouble Shooting

Should you experience any technical, or set-up problems with your amplifier please check the 
Trouble Shooting guide below:

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Is the LED illuminated on the front of the unit?  If not, check your mains lead is properly 

connected both at the amplifier and at the mains outlet.  Also check the fuse of the  amplifier 
and mains plug (where fitted). 

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Is the LED red?  If so, you have power going to the unit.  It could be that there is no signal, or 

the 12v trigger is connected and the source not turned on (see below).

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Have you got the 12v trigger connected?  If so, the amplifier will not power up until the source 

is turned on.

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Is the unit receiving a signal (12v trigger not being used)? Is the Power Mode Switch in Auto or 

On position, and signal source turned on? Try adjusting the volume level of the source.

If it still does not turn on/ power up, please contact your local dealer/ distributor or Monitor Audio immediately.

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Is the LED on the front red or green?  If it is red, then the unit hasn’t actually turned on.  See 

above suggestions.  If it is green, then your unit is powered up and turned on.  Check further 
suggestions below.

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Are the signal leads connected correctly?  Check these.  If possible, check by replacing with 

a second, working set.

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Is the volume level just very low?  Try adjusting the volume on the source and the IWA-250.

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Have you tried switching input’s?  If changing from LFE to Stereo (or vice versa), you need to 

power down the sub woofer first.  It will stay “locked” onto the input that activates it.

If it still does not output a signal, please contact your local dealer/ distributor or Monitor Audio 
immediately.

Owner Information

Model: IWA-250 ...............................................

Product Serial No: .............................................

Date of Purchase: ..............................................

Dealer Name: ……………………………………………………………………………………….

Address: ……………………………………………………………………………………………

Town, Post code, Country: …………………………………………………………………………….

e-mail address: …………………………………………………………………………………………

ENGLISH