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The Rainbow Light Show PCB will have most components soldered to the bottom of the board, as well some
on the top. In all cases, the component is soldered onto the side with a white printed outline.
Top Side
of PCB
Bottom Side
of PCB
Resistor bending:
Bend each of the resistors like in these photos:
You want to have the bend of the leg
as close as possible to the body of the resistor.
Resistor preparation and soldering
It is important to place each resistor in the appropriate area on the PCB.
Prepare one resistor at a time, and insert it into the proper location on
the PCB.
Be sure to install the resistors on the bottom side of the PCB.
Use this chart to place the proper resistor in the right location on the PCB.
Note the R numbers printed on the PCB.
1k ohm [brown/black/red]
10k ohm [brown/black/orange]
Resistor graphics by samstechlib.com
120 ohm [brown/red/brown]
R1
R2
R3
R8
R7
R4
R5
R6