Helix Main Board
Assembly and Setup Manual
16
Comments, Questions or Concerns contact the developer at:
12.
Solder one pin of this 10 pin socket on to the PCB. Make sure the socket is flush and perpendicular with the
PCB, reheating/repositioning it as necessary. If these sockets are not perpendicular to the PCB then the
MP3 player will not properly plug into the PCB. After verifying proper installation then solder all of the
other pins. See Picture 6 for an example of correctly installed MP3 sockets.
13.
Orientation matters with the fuse clips. Make sure to install them in the correct orientation so they will
hold the fuse.
14.
Connect the eight terminal blocks together by sliding the tab on the side of one into the socket on the side
of the next one. Insert all eight terminal blocks into the PCB and solder from the bottom.
15.
This is an electrolytic capacitor, orientation matters. One side of the capacitor is marked as negative. The
pin on this side needs to be inserted in the round pad. Make sure the capacitor is flush with the PCB.
16.
This is a TO-220 package voltage regulator, orientation matters. Install this component so that it matches
the silkscreen layout, i.e. the tab is aligned with the smaller rectangle on the silkscreen (closest to the
transformer). The large silkscreen box around this component is the outline for the heat sink. Do not install
the heat sink at this time.
17.
Insert the transformer such that the pin numbers on top of the transformer are aligned with the pad
numbers on the PCB. The transformer has small standoff pins. Make sure these standoff pins are flush with
the PCB.
