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Need PWM controller for Lacoustics LA-8
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voron View Drop Down
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    Posted: 30 June 2018 at 12:36pm
Hello from Russia! Anybody can help me with purchase PWM preprogmammed controller at90pwm3b-16su  for PSU L'Acoustics LA-8 or firmware for this one ? My amp was damaged,  PSU IGBT's & drivers were burned; at90pwm3b-16su also was damaged. I have ennough skills & expirience for repair this PSU, problem occured with pwm controller that I can't find anywere ( I understand that firmware is secret of manufacturer) , but maybe anybody have friends in companies that do service of Lacoustics amps... I hope that someone can help me, as I, in turn, help people with the service manual EV zlx.




Edited by voron - 30 June 2018 at 12:45pm
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MarjanM View Drop Down
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Points: 7816 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MarjanM Quote  Post ReplyReply Direct Link To This Post Posted: 30 June 2018 at 2:39pm
I think you should contact who ever is Russian distributor for Lacoustics and send the amp to their authorized service.
Marjan Milosevic
MM-Acoustics
www.mm-acoustics.com
https://www.facebook.com/pages/MM-Acoustics/608901282527713
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DjLeco View Drop Down
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The best choice!
I'm A Stupid SMART Romanian...
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voron View Drop Down
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Points: 165 		Post Options Post Options   Thanks (0) Thanks(0)   Quote voron Quote  Post ReplyReply Direct Link To This Post Posted: 30 June 2018 at 3:19pm
Local distributor can sell only whole PSU & its price is too much (1660 Euro)
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voron View Drop Down
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Points: 165 		Post Options Post Options   Thanks (0) Thanks(0)   Quote voron Quote  Post ReplyReply Direct Link To This Post Posted: 03 October 2018 at 9:06pm
The firmware has been recreated and optimized. Now PSU works fine after repair. 
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Patabouf31 View Drop Down
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Points: 1 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Patabouf31 Quote  Post ReplyReply Direct Link To This Post Posted: 04 January 2024 at 9:36pm
Hi Voron,

I also had the same problem as you, one of my LA8s.
I find myself in a bind following this PWM at90pwm3b-16su.

Could you tell me how you went about programming this PWM?

Thanks to you
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voron View Drop Down
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Points: 165 		Post Options Post Options   Thanks (0) Thanks(0)   Quote voron Quote  Post ReplyReply Direct Link To This Post Posted: 05 January 2024 at 12:56pm
I wrote my own firmware, according algorithms of working PSU. Read PM please for more info.
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