Anthem D2v power supply regulators

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I've been looking at the power supply in the D2v. I'm thinking of upgrading some of the regulator to a Belleson superpower regulator. There are quite a few regulator chips in a 220 package. LM1084, LD29300v50, LM2990, and 75901. Does anyone know what one feeds the AK 4395 DACs chips on the daughter board by chance?
 
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