DIY ES9018 DAC + LM4780 AMP Details part 4
Posted 6th January 2015 at 12:28 PM by Maciej Czerwinski
The post-regulation schematics:
ThreeTHX203 SMPS boards soldered to the main power supply board. There are also additional 230V input filter, output bypass caps and gyrator’s TIP122 visible:
The other side of the main board – LT1763 regulators, 5V main power daughterboard with heatsinks:
Details of the 5V main power daughterboard. The top heatsink is for the LM1763, the two on the bottom are for TIP122 (gyrator) and LM7805 (5V for volume controller):
ADM7150 3.3V regulators on separate board with Rubycon ZL 4700uF/6.3V low ESR bypass caps (board bottom):
(board top):
This photos show the how dac power supply is mounted inside the housing:
ThreeTHX203 SMPS boards soldered to the main power supply board. There are also additional 230V input filter, output bypass caps and gyrator’s TIP122 visible:
The other side of the main board – LT1763 regulators, 5V main power daughterboard with heatsinks:
Details of the 5V main power daughterboard. The top heatsink is for the LM1763, the two on the bottom are for TIP122 (gyrator) and LM7805 (5V for volume controller):
ADM7150 3.3V regulators on separate board with Rubycon ZL 4700uF/6.3V low ESR bypass caps (board bottom):
(board top):
This photos show the how dac power supply is mounted inside the housing:
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