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Step 12Bringing everything together
So now it is time to bring everything together.
First the speakers and the LCD (with on its back the PCB for the interface) are screwed into place.
Fitting the amplifier
As I said before, I used an amplifier that I bought as a kit, so I soldered that together. That is going in next but first of all we need to solder the wires that come from the Amplifier Power - LED to the place where the led should normally sit on the board. We also need to connect the audio coming from the soundcard to this amplifier. This is a bit more complicated as it runs from the soundcard to the headphone connector, then to a switch from where it goes either to the amplifier or to the connector in the back.
Once everything is connected and the speakers are also connected to the amplifier, then the amplifier is screwed into the case.
Fitting the router and soundcard
I removed the USB-connectors from both devices and soldered them together with wires instead of connecting them via a USB cable. I had to do that because otherwise the router would't fit in the back panel. So I also had to remove the power connector of the router and solder that directly to the powerboard too.
I removed the Air and Power LED from the router and wired the LED's in the front panel to those pads. I also removed the Play LED from the soundcard and wired that to an LED in the front. Then the soundcard was screwed into the case and the router was fitted into the back panel.
Wiring the last things up
The rotary encoder and the RS232 from the router are connected to the interface board via a flatcable and the last remaining LED is connected to the powerboard. Connect all the devices to the powerboard too.
The powerboard
The powerboard is a little piece of veroboard with two 78S05 (2A), and a bunch of capacitors soldered to it. One of the regulators is for the screen and interface and one for the router. You really need to cool the regulator of the router. The amplifier uses 12V directly from the main power.
I used an external 12V DC 6A powersupply for this project.
When everything is hooked up, you can screw the backpannel in place and enjoy the music!
First the speakers and the LCD (with on its back the PCB for the interface) are screwed into place.
Fitting the amplifier
As I said before, I used an amplifier that I bought as a kit, so I soldered that together. That is going in next but first of all we need to solder the wires that come from the Amplifier Power - LED to the place where the led should normally sit on the board. We also need to connect the audio coming from the soundcard to this amplifier. This is a bit more complicated as it runs from the soundcard to the headphone connector, then to a switch from where it goes either to the amplifier or to the connector in the back.
Once everything is connected and the speakers are also connected to the amplifier, then the amplifier is screwed into the case.
Fitting the router and soundcard
I removed the USB-connectors from both devices and soldered them together with wires instead of connecting them via a USB cable. I had to do that because otherwise the router would't fit in the back panel. So I also had to remove the power connector of the router and solder that directly to the powerboard too.
I removed the Air and Power LED from the router and wired the LED's in the front panel to those pads. I also removed the Play LED from the soundcard and wired that to an LED in the front. Then the soundcard was screwed into the case and the router was fitted into the back panel.
Wiring the last things up
The rotary encoder and the RS232 from the router are connected to the interface board via a flatcable and the last remaining LED is connected to the powerboard. Connect all the devices to the powerboard too.
The powerboard
The powerboard is a little piece of veroboard with two 78S05 (2A), and a bunch of capacitors soldered to it. One of the regulators is for the screen and interface and one for the router. You really need to cool the regulator of the router. The amplifier uses 12V directly from the main power.
I used an external 12V DC 6A powersupply for this project.
When everything is hooked up, you can screw the backpannel in place and enjoy the music!
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