5.1 (6 channel) volumecontrol with OPA134 and PGA2310.

My brother and I are building a 5.1 (6 channel) volumecontrol with OPA134, PGA2310, black gate and polypropylene capacitors. We have finally started this project up, the code has been ready in a draft version for the past year! We had to change op-amp model from OPA627 to OPA134 as the OPA627 had to high DC potentiale on the output, and made the volumecontrol 'click' quite much. Note that you have to use a Sony compatible remotecontrol with the 5.1 volumecontrol.

Updated! 5.1 volumecontrol schematic finally :-)
Picture of the overside of the empty 5.1 volumecontrol pcb.
Picture of the underside of the empty 5.1 volumecontrol pcb.
Picure of modfication on the underside of the pcb. We have replaced the input capacitors with a wire and mounted 100 ohm smd resistors between the OPA134 and the PGA2310.
Picture of the 5.1 volumecontrol pcb before mounting the OPA134 and PGA2310. Software setup: 1) Hold left front button during power on to enter the IR datalink menu. 2) Hold center button during power on to enter IR remote setup menu. 3) Hold right front button during power on to enter default start master volumen. 4) Hold left back button during power on to enter firmware menu.		Pcb file updated 2007.01.14
Menustructure of the 5.1 volumecontrol.
Updated! powersupply schematic finally :-)
Picture of the powersupply pcb.		Pcb file updated 2007.01.14
Updated! frontplate schematic finally :-)
Picture of the frontplate pcb.		Pcb file updated 2007.01.14
Picture of the transformer taken during mounting in the case.
Picture of the front case.
Picture of the back of the case.
Picure of the open case.
CAD files for the cabinet.		CAD files updated 2007.06.18

This page was last updated 2010-02-17.