SCTV Clock Assembly Manual
1/24/22
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Press a square nut into each of the eight slots, starting from the top side (the slots are slightly wider at
the top than the bottom).
Finally, peel off the paper from the top and the bottom of the stacked pieces.
Install a 3/8” screw into one of the holes in the base stack.
Screw a 4-40 x 5/16” standoff onto the screw.
Repeat for the other five standoffs.
After all screws are installed, tighten them snug with a #1 Phillips screwdriver and a 3/16” nutdriver or
end wrench.
Place the SCTV PC board on the standoffs.
Install a 4-40x3/16” screw in each of the six holes in the PC board. Tighten these screws snug.
Peel the paper from both sides of the front face, the one with the large hole.
Place it on the encoder shaft with the three small holes lined up in front of the three trim pots.
Install two 4-40x1/2” screws into the two screw holes at the base.
Peel the paper from both sides of the rear face. Place it on the base so that the two USB jack holes line
up with the Teensy and the USB jack. Install two 4-40x1/2” screws into the two screw holes at the base.
Pot Installation
See the photo on the next page to see how the pots are installed into the front panel.
Plug the 6 pin Molex plug with the two position pots into J5. Plug the 7 pin Molex plug with the focus
and brightness pots into J3.
Place the V position pot, with the short yellow, green and blue wires, into the lower right hole in the
front face. Orient it with the kitty’s ears up. There is a small bump on the front of the pot that will
engage into the small hole next to the pot hole. Thread a pot nut onto the bushing, being careful to keep
the nut straight so that it doesn’t get cross-threaded. Tighten the nut finger tight.
Place the H position pot, the other pot on J5, into the lower left pot hole in the front face. Thread a pot
nut onto its bushing as above.
Place the focus pot from J3 with the brown, red and orange wires into the upper right hole in the font
face. Thread a pot nut onto its bushing.
Place the brightness pot into the upper left hole in the front face. Thread the last pot nut onto its bushing.
Ensure that the wires from the pots to the board are not in front of the trim pots on the board edge.
Tighten the four pot nuts snugly with a 5/16” or 8mm nutdriver or wrench.
