The Box MA1220A Active Monitor Schematics needed - diyAudio
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Old 4th February 2009, 04:44 PM   #1
diyAudio Member
Join Date: May 2005
Location: Avesnes/Helpe
Default The Box MA1220A Active Monitor Schematics needed

Hi everyone !

First of all thanks for the amount of useful informations available.

I'm looking for schematics for a THe Box MA1220 Active monitor.

The amplifier is dead and i'd like to repair it.

This monitor is a 12inches loudspeaker and a 1 inch horn driver With a 160WRMS plate amplifier.

Thanks for any help.

I got lots of useful schematics so if you need something just ask !
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Old 6th February 2009, 08:32 PM   #2
diyAudio Member
Join Date: May 2005
Location: Avesnes/Helpe
Default Solved

I've just found the service manual:

It was for an AM160 Proel plate amplifier.

If someone needs this service manual AM160, AM320 and AM320S.

And my problem is fixed (2 protection zeners burned in symetric input board).

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