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Step 3Solder Resistor Networks
The first parts to solder to the board are the resistor networks. The color of the network may vary from the picture below, but the important thing to note is that all of them have writing on one side, towards one end of the network. This helps to mark which pin is 'pin 1'. It is possible to put these in backwards, and that could be a bad thing, so make sure you understand which way these go in.
The end of the network with the writing on it is pin 1. The second picture below shows where they go on the board, and which end is pin 1. Make sure the writing is on the end marked with the 1, and poke the legs through the holes.
Turn the board upside down, and solder ONE of the legs of each resistor network. This is just to hold it in place. Turn the board back around and look at the network. It will probably be at a bit of an angle. Melt the solder around the first network, adjust the network so it is fairly straight (perpendicular to the PCB) and let the solder cool so the network is held in place. Repeat for the second network.
Once both networks are in straight, flip the board back over and solder the other nine pins of each network.
The end of the network with the writing on it is pin 1. The second picture below shows where they go on the board, and which end is pin 1. Make sure the writing is on the end marked with the 1, and poke the legs through the holes.
Turn the board upside down, and solder ONE of the legs of each resistor network. This is just to hold it in place. Turn the board back around and look at the network. It will probably be at a bit of an angle. Melt the solder around the first network, adjust the network so it is fairly straight (perpendicular to the PCB) and let the solder cool so the network is held in place. Repeat for the second network.
Once both networks are in straight, flip the board back over and solder the other nine pins of each network.
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