Begin by placing the amplifier board in a vise so you can easily work on it. Heat up your soldering iron to 650-700 degrees F and get some solder and hand tools ready!
Power capacitor
We'll start with the power supply capacitor. This cap isn't required if you're powering off of batteries or a good quality supply, but if you're using wall adapter, this might give you just a little cleaner power especially with high amplification levels
Capacitors are polarized, they have to be placed in the right way!
The longer lead goes into the pad marked +
The longer lead goes into the pad marked +
Solder in both pads, heating the pad and pins at the same time with the edge of the soldering iron and dipping a little solder in.
The ground (-) pin may be a little tough to solder since the ground plane acts like a large heat sink
The ground (-) pin may be a little tough to solder since the ground plane acts like a large heat sink
Speaker Terminals
You'll want to do this step, where we add the terminal blocks for the speaker outputs. Otherwise you'd have to solder wires directly to the board which isn't suggested.
You don't need to clip them because they are already quite short
Remove the tape once you've checked your work
Remove the tape once you've checked your work
Power and Line In Terminal Blocks
There's also terminal blocks for Power and line-in. These are optional, you can use the DC jack and headphone jack but if you want to hard-wire in, use these instead of soldering directly to the board!
