Get loud

Steps#

  1. Solder capacitors C5 (220uF) and C6 (.1uF, marked 104) and resistor R4 (1m, Brown Black Green; resistor body may be blue in your kit).
    • Make sure C5's polariy matches its footprint, just like C1.
  2. Wire speaker to LS1.
    1. Thread remaining ribbon cable through hole. 060201@0.5x.jpg
    2. Strip insulation and solder to LS1.
    3. Strip and solder the other ends to the speaker, matching the "+" and "-" sides.
  3. Solder socket U2. Match its dimple to the footprint, just like U1.
  4. With the power off, carefully insert LM386 chip, again making sure its inserted the correct way.

Test#

Power on, unplug your headphones, and press the switch. It should be playing out of the speaker now. Power off.

060500@0.5x.jpg

Not working as expected? Check the PCB troubleshooting section. Otherwise, continue to the next step.