SCTV Clock Assembly Manual
1/24/22
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28) Strip 1/8” of insulation from each end of the black wire. Solder one end to pin 3 of the 7805, the end
leg with the capacitor. Solder the other end to pin 48 of U2, the Teensy pin nearest the corner of the
board.
29) Press the two 24-pin strips into the socket strips at U2.
30) Press the five-pin strip into the socket at J8.
31) Place the Teensy on the pin strips at U2. Orient the Micro-USB end of the Teensy with the edge of
the board.
Solder the two 24-pin strips and the five-pin strip to the Teensy holes. Use care, as there isn’t much
room to work on the Teensy and it has many small parts that don’t want your soldering iron to touch
them. You may prefer to solder a few pins first, then remove the Teensy from the board and solder the
rest of the pins. (Apologies for making you do this work, the Teensys with pins were all sold out.)
31) Remove the CR2032 battery from its package by trimming away the paper area with scissors, then
insert it + side up into the B1 battery holder.
PC board assembly is complete.
