DIY ES9018 DAC + LM4780 AMP Details part 4
Posted 6th January 2015 at 12:28 PM by Maciej Czerwinski
The post-regulation schematics:
![Click image for larger version
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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:
![Click image for larger version
Name: dac_zas_3zi.jpg
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ID: 1495](attachments/1495d1420545439t-diy-es9018-dac-lm4780-amp-details-part-4-dac_zas_3zi.jpg)
The other side of the main board – LT1763 regulators, 5V main power daughterboard with heatsinks:
![Click image for larger version
Name: zas_dac_all.jpg
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ID: 1496](attachments/1496d1420545439t-diy-es9018-dac-lm4780-amp-details-part-4-zas_dac_all.jpg)
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):
![Click image for larger version
Name: zas_dac_5V.jpg
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ID: 1497](attachments/1497d1420545439t-diy-es9018-dac-lm4780-amp-details-part-4-zas_dac_5v.jpg)
ADM7150 3.3V regulators on separate board with Rubycon ZL 4700uF/6.3V low ESR bypass caps (board bottom):
![Click image for larger version
Name: zas_dac12.jpg
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ID: 1498](attachments/1498d1420545439t-diy-es9018-dac-lm4780-amp-details-part-4-zas_dac12.jpg)
(board top):
![Click image for larger version
Name: zas_dac14.jpg
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ID: 1499](attachments/1499d1420545439t-diy-es9018-dac-lm4780-amp-details-part-4-zas_dac14.jpg)
This photos show the how dac power supply is mounted inside the housing:
![Click image for larger version
Name: caly_str_prawa.jpg
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Size: 93.9 KB
ID: 1500](attachments/1500d1420545439t-diy-es9018-dac-lm4780-amp-details-part-4-caly_str_prawa.jpg)
![Click image for larger version
Name: caly_prawa_z_gory.jpg
Views: 288
Size: 88.5 KB
ID: 1501](attachments/1501d1420545439t-diy-es9018-dac-lm4780-amp-details-part-4-caly_prawa_z_gory.jpg)
![Click image for larger version
Name: dac_zas_sch.jpg
Views: 2893
Size: 125.2 KB
ID: 1494](attachments/1494d1420545439t-diy-es9018-dac-lm4780-amp-details-part-4-dac_zas_sch.jpg)
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:
![Click image for larger version
Name: dac_zas_3zi.jpg
Views: 1505
Size: 97.7 KB
ID: 1495](attachments/1495d1420545439t-diy-es9018-dac-lm4780-amp-details-part-4-dac_zas_3zi.jpg)
The other side of the main board – LT1763 regulators, 5V main power daughterboard with heatsinks:
![Click image for larger version
Name: zas_dac_all.jpg
Views: 573
Size: 65.3 KB
ID: 1496](attachments/1496d1420545439t-diy-es9018-dac-lm4780-amp-details-part-4-zas_dac_all.jpg)
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):
![Click image for larger version
Name: zas_dac_5V.jpg
Views: 502
Size: 51.6 KB
ID: 1497](attachments/1497d1420545439t-diy-es9018-dac-lm4780-amp-details-part-4-zas_dac_5v.jpg)
ADM7150 3.3V regulators on separate board with Rubycon ZL 4700uF/6.3V low ESR bypass caps (board bottom):
![Click image for larger version
Name: zas_dac12.jpg
Views: 411
Size: 62.1 KB
ID: 1498](attachments/1498d1420545439t-diy-es9018-dac-lm4780-amp-details-part-4-zas_dac12.jpg)
(board top):
![Click image for larger version
Name: zas_dac14.jpg
Views: 220
Size: 62.0 KB
ID: 1499](attachments/1499d1420545439t-diy-es9018-dac-lm4780-amp-details-part-4-zas_dac14.jpg)
This photos show the how dac power supply is mounted inside the housing:
![Click image for larger version
Name: caly_str_prawa.jpg
Views: 449
Size: 93.9 KB
ID: 1500](attachments/1500d1420545439t-diy-es9018-dac-lm4780-amp-details-part-4-caly_str_prawa.jpg)
![Click image for larger version
Name: caly_prawa_z_gory.jpg
Views: 288
Size: 88.5 KB
ID: 1501](attachments/1501d1420545439t-diy-es9018-dac-lm4780-amp-details-part-4-caly_prawa_z_gory.jpg)
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