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Audio Note DAC Kit 3.1 - Section 5: Digital Power Supply PCB

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Copyright © 2006-2011 AudioNote Kits
www.AudioNoteKits.com
audionotekits@rogers.com
Page 48
Section 5: Digital Power Supply PCB
In this section we will be building, installing and testing the Digital Power Supply PCB that is used in the DAC2.1 and 3.1
kits.
EXPLANATION: This small board receives an 18V AC signal from the 9-0-9 taps on the Mains transformers and converts
it to several DC voltages that are required by the DAC board. The outputs are A+ - AGND - A- , D+ and DGND.
Parts List
Category
Quantity
Part
Designator
Capacitors (Electrolytic)
2
4700uf 16V
C1, C2
Resistors
2
1K0
R3, R4
2
4R7
R1, R2
Semiconductor Devices
4
Schotkey Diodes
D1, D2, D3, D4
2
L.E.D‟s
LED1, LED2
Construction
Start by installing the 4 spacers
provided. This will make it easier to
work with as we install the
components onto the board.
If you are an advanced builder we
suggest you read through this section
completely and then proceed with your
build from the parts list otherwise we
suggest you work through each step in
the order suggested.

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