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Class D Switching Power Amplifiers and Power D/A conversion

Schematics for an opti2000d driver module
Schematics for an opti2000d driver module
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Old 8th February 2013, 08:25 AM   #1
MarioRestucci is offline MarioRestucci  Italy
diyAudio Member
Join Date: Aug 2012
Location: NAPOLI
Default Schematics for an opti2000d driver module

Hi, I'm in trouble with the repair of an amplifier, the third in a series of 8.
It is a Lanzar OPTI2000D, I was able to check that all the amplifier is intact, except for the driver module, in fact, I replaced the driver module with that of another opti2000d and the amplifier works perfectly.
I would like to repair the faulty driver module.
Who could help me? maybe someone has the schematic form of this driver ....
thanks to all
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Old 8th February 2013, 09:55 AM   #2
mgm2000ro is offline mgm2000ro  Romania
diyAudio Member
Join Date: Nov 2004
Location: Bucharest
Change ALL !!! transistor (burn or good mpsa92, 56, 42, c1027, a1013) from class d modul and check from burn resistors !

Best regarsd,

Last edited by mgm2000ro; 8th February 2013 at 10:03 AM.
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