Placement" section Figure 1.
5. Carefully bend over the four corner pins of the socket against
the solder pads on the solder side of the board. Solder in place.
6. Locate another 14 pin IC socket.
7. Install the IC socket at the U2 location on the circuit board. Be
careful to orient the socket correctly according to the "Parts
Placement" section Figure 1.
8. Carefully bend over the four corner pins of the socket against
the solder pads on the solder side of the board. Solder in place.
9. Locate the remaining 14 pin IC socket.
10. Install the IC socket at the U3 location on the circuit board. Be
careful to orient the socket correctly according to the "Parts
Placement" section Figure 1.
11. Carefully bend over the four corner pins of the socket against
the solder pads on the solder side of the board. Solder in place.
12. Locate capacitor C1 (470uF). This is an electrolytic type
capacitor and will be marked "470uF" (actual value in uF).
Carefully install C1, be sure to orient the negative side of the
capacitor properly. Please refer to the section titled, "Parts
Placement", Figure 1 for correct orientation of C1. Once
installed, then solder in place and trim the excess leads.
13. Locate capacitor C9 (470uF). This is an electrolytic type
capacitor and will be marked "470uF" (actual value in uF).
Carefully install C9, be sure to orient the negative end of the
capacitor properly. Please refer to the section titled, "Parts
Placement", Figure 1 for correct orientation of C9. Once
installed, then solder in place and trim the excess leads.
14. Locate the rotary switch, SW1 and the switch PCB. Insert the
switch into the PCB. Be careful and make sure the pin on the
switch marked
1
goes into the hole on the PCB marked
1
. Do
not remove the nut on the switch. It holds the stop tab in the
right hole for this particular switch configuration.
Figure 2
15. Insert the Headers into the PCB side by side. The header has a
plastic square body with pins along the back facing down and a
plastic lip that runs above the longer horizontal pins. The long
pins are pushed through the main PCB till the plastic contacts
Header
Switch PCB
Main
