4HP Logic Utility Module
Difficulty Level: Beginner
Time: 1-2 Hours
What you'll need
Immutable Kinks DIY kit
Soldering Iron
Solder
Side cutters
Verify parts
Begin by pulling out all of the parts included in your Rings DIY kit and reference the bill of materials to ensure you're not missing anything.
Placing and soldering components
Begin by placing the 10-pin header on the backside of the PCB in the orientation shown below.
Start by soldering a single pin of each component and then checking alignment and orientation. If necessary apply heat to the joint you just soldered and adjust until the components are straight and flush.
Finish soldering the rest of the pins.
The rest of the components will be placed on the front of the board.
Place all twelve jacks and solder them in from the backside.
Slide the LED standoffs onto the legs of LED's.
Place LEDS so that the long and short legs align with the photo below - The two top LEDs have their long legs on the bottom, while the bottom LED is reversed (long leg at the top)
Solder a single pin of each LED to the PCB board.
Apply a slight amount of pressure to the LED and heat the solder joint you just made, slide the LED until the holder is completely flush with the board and the LED is standing straight up. Repeat for each LED and solder the remaining pins.
Alignment can be confirmed by placing the front panel on the board and ensuring the LED's land in their holes and are all the same height.
Solder and trim the excess leads from the LEDs
Congratulations! you are finished.
Testing
With power applied the top two LEDS should be off and the S+H LED may be on (either green or red), whichever voltage is at the S+H input at start up (random).
Confirm that positive input voltages make the LEDs go green, while negative input voltages make the LEDs go red.
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