Step 2
![[Image: 52689415334_9aa877d2bd_b.jpg]](https://live.staticflickr.com/65535/52689415334_9aa877d2bd_b.jpg)
Orientation: The board has been flipped. Components on this side. Notice the strips for pins 1 and 28 are labeled in the picture.
Solder two 470R I2S resistors between the holes in blue. Resistor body mounted close to the module. Note that resistors are mounted on the underside of the board. You will need an insulated wire to solder between #18 and the resistor for BCK, since the path is long. The long lead wire should route straight down to strip 2 to avoid other solder joints. The exposed lead from the #19 resistor should also be insulated, since it crosses over the +3V3 and GND strips.
Solder ground wires between the holes in green. Note that the wires cross and should be separate. Mount one on the top side and the other on the bottom. The wire from pin 5 to 26 is a power supply ground. If you have removed all of the pins from the module, and are soldering directly to it, connect the ground wire from 5 to 27. The electrolytic cap positive will go from module hole 28 to strip 27. Pin 4 to 23 is a signal ground (connects to the I/V resistors). The DAC will not work if pin 4 of the module is connected to the board. There is ground on strip four. If pin 4 on the module is connected to ground, it will ground BCK and the DAC will not work. I simply clip pin 4 of the module, since it is a duplicate of pin 2.
Solder an insulated wire between the holes along the red line. This carries +5VDC to pin 28 of the module.
Orientation: The board has been flipped. Components on this side. Notice the strips for pins 1 and 28 are labeled in the picture.
Solder two 470R I2S resistors between the holes in blue. Resistor body mounted close to the module. Note that resistors are mounted on the underside of the board. You will need an insulated wire to solder between #18 and the resistor for BCK, since the path is long. The long lead wire should route straight down to strip 2 to avoid other solder joints. The exposed lead from the #19 resistor should also be insulated, since it crosses over the +3V3 and GND strips.
Solder ground wires between the holes in green. Note that the wires cross and should be separate. Mount one on the top side and the other on the bottom. The wire from pin 5 to 26 is a power supply ground. If you have removed all of the pins from the module, and are soldering directly to it, connect the ground wire from 5 to 27. The electrolytic cap positive will go from module hole 28 to strip 27. Pin 4 to 23 is a signal ground (connects to the I/V resistors). The DAC will not work if pin 4 of the module is connected to the board. There is ground on strip four. If pin 4 on the module is connected to ground, it will ground BCK and the DAC will not work. I simply clip pin 4 of the module, since it is a duplicate of pin 2.
Solder an insulated wire between the holes along the red line. This carries +5VDC to pin 28 of the module.
