DDz1 Output driver (card) diagram

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Hi, I am restoring (repairing a Digital Designs DDz1 not the z1a. I have got it all repaired and complete except the output driver card. This amp has been worked on before and wrong parts put in it; so I don't even know which parts are correct when it comes to the output card.

So really just needing a schematic of the whole card.

Also, I'm open to any improvements that may make the design of this amp more reliable. Thanks.

Need ASAP

PSC-028-11 is the part number on the card
 
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