Audio Creative DDDAC1794 Скачать руководство пользователя страница 1

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Audio

Ω

Creative

DDDAC1794

Version 1.1

Finally !! The new, highly improved ‘2016’ DDDAC1794 module! De voltage regulation at

the analog side of the system has now an embedded Tentlabs Shunt regulator. The Bias

through the much discussed ‘pin 20’ got a constant current source (CCS) which replaces

the fixed 6K1 resistor. All resulting in the next stage of superb sound reproduction

Содержание DDDAC1794

Страница 1: ...94 module De voltage regulation at the analog side of the system has now an embedded Tentlabs Shunt regulator The Bias through the much discussed pin 20 got a constant current source CCS which replaces the fixed 6K1 resistor All resulting in the next stage of superb sound reproduction ...

Страница 4: ...hm resistors on the PCB The bending tool see picture above is a very handy tool to make a perfect fit The PCB has exact this distances Let the solder flow nicely round the wires must be shiny and cut the wires with the cable cutter Cut them directly above the solder pad ...

Страница 5: ...the two 100Ohm resistors Heat it well and take the time needed to have the solder flow nicely Cut the wires and you might want to re heat re solder shortly the connections so it even looks better This is not a must just some perfection thing ...

Страница 6: ...em on the pcb and slightly bend the two wires to the outside so they will not fall off the board anymore Place the PCB on its back on a flat working space Make sure all capacitors are placed correctly Press slightly to make sure this is the case Now solder all 36 connections Cut them short with the cable cutter ...

Страница 7: ...AudioΩCreative DDDAC1794 7 It will look like this at this stage ...

Страница 8: ...lcos There are 12 pcs of the 10uF and 2 pcs of the 47uF Elcos to be mounted When placing the elcos make sure check AND double check that the polarization plus and minus wires are correct A wrong connection is very difficult to correct after they are soldered ...

Страница 9: ...ain take your time to let the solder flow Specially the minus poles are at the ground plane which will attract quite some heat in the first few seconds when the solder tip is placed So do not bake the solder on the pads Let it flow ...

Страница 10: ...cut very short 2mm above PCB area and optionally resolder the connections If more modules are mounted above each other we must avoid that long wires sticking out are shortcutting against the capacitores on the below deck Now the same with the two 47uF capacitors ...

Страница 11: ...AudioΩCreative DDDAC1794 11 In between view of the PCB The voltage regulators Before mounting we bend the pins with the platbek tang Directly after the thicker part of the pins ...

Страница 12: ...AudioΩCreative DDDAC1794 12 Press the connection pins through the PCB Solder the middle pin with a small drop while making sure the voltage regulator is nicely placed on the PCB See image ...

Страница 13: ... it is best to cut the wires first a few mm above the PCB and than solder the two out side pins Do not forget to re solder the middle pin Trimmers As you can see the only thing missing are the two blue multi turn trimmers for the CCS ...

Страница 15: ...ossible in this con struction manual we cannot exclude that still something is unclear In that case just email Audio Creative or DDDAC for further help Also feedback to improve on text or image is more than welcome Dick van de Merwe Doede Douma Audio Creative DDDAC Audio Design ...