Intervalometer for Canon and Nikon cameras

Step 4 Solder parts on the front of the board

The front side of the board is much easier than the back.

Start with the resistors.  There's 5 on this side of the board.  R8, R9, and R10 are 500 ohm, R6 is 1k ohm, and R7 is 10k ohm.  Solder them as usual - put solder on one pad, place the resisitor, heat the pad, and then solder the other end of the resistor.

Next place the capacitors.  C3 and C4 are 0.1uf bypass capacitors.  They're not orientation specific, so they can be soldered on to the board either way.

Place the two-position tact button onto the board.  There's two alignment pins in the back of the switch that will fit into two holes in the board.  Hold the switch in place and solder the tabs on all four corners into place.

Solder the final 3 tact switches into place.  These do not have alignment tabs, so must be aligned over the pads, held,  and soldered into place.  There is no orientation concerns with these parts.

Comments

[zphaze]

Assembly details are missing for the red led on the front of the board.

[zphaze]

In order to get the placement right for the red led I first inserted the led into the pc board. Orientation is important on this part. The long lead (+) needs to be at the bottom. I then placed the board face down on the front panel with the screws and spacers in place. Once the board was in place I was able to push the led into it's correct location on the front panel and solder it in place.