INSTALLING THE SWITCHES
Now it is time to install the front panel pushbutton switches. These parts are identical to one another. Place any one in the positions labeled “SW1″, “SW2″, and “SW3″, and proceed as follows.
Fig. 51 Locate the pushbutton switches and corresponding PCB positions.
Fig. 52 Flip the PCB over while holding the switches in place, and place it on a hard, flat surface. To keep the switches flat against the PCB it may be helpful to support the opposite end of the PCB with an object of equal height.
Fig. 53 Press down on the PCB either side of the switches to maintain a steady, flush mechanical contact while soldering just the middle row of pins.
Fig. 54 The switches will be held temporarily flat/straight with just the middle row of pins properly soldered.
Fig. 55 Now check that the switches are evenly straight from every angle.
Fig. 56 Notice the uniform orientation of all our front panel components, perpendicular to the PCB surface. This will guarantee that the front panel mounts correctly.
Fig. 57 One last check. Straight switches look like this.
Fig. 58 Finally, solder the rest of the switch PCB pins. Good joints will look like this. No clipping is necessary.
