Ramsey Electronics FM10C Manual page 13

( + ) capacitor lead into the PC board ( + ) hole and the ( - ) lead into the
( - ) hole. Observe correct polarity when installing the electrolytic capaci-
tors.
14. Install C7, a 10 uF electrolytic capacitor. Watch that polarity!
15. Install C8, another 10uF electrolytic capacitor.
16. Install C10, yet another 10uF electrolytic capacitor.
17. Install J1, the left channel RCA-type PC-mount jack. After insuring
this parts sits flush on the circuit board be sure to solder the ground con-
nections well. They may require more heat but when working with RF, a
good ground is essential.
18. Install J2, the right channel RCA-type PC-mount jack.
Stereo Generator
19. Install X1, the small silver "can" crystal. Be especially careful when
installing this part as its leads are very small. This part location has four
holes on the circuit board. The leads of the crystal must be installed in
the two holes closest to the IC socket. A crystal has no polarity require-
ments so its leads can be placed in either of the two holes.
20. Install crystal strap, using a scrap component lead looped around
the crystal and placed through the other two crystal location board holes.
It is a good idea to solder the strap to the crystal after they have been
installed.
21. Install C11, a 10pF ceramic capacitor (marked 10).
22. Install C12, another 10pF ceramic capacitor (marked 10).
Power Supply Section
23. Install C15, a .001uF ceramic capacitor (marked 102).
24. Install VR1, the 78L02 +2 volt regulator. This part looks like a tran-
sistor and like a transistor, it must be place correctly to work. Follow the
parts layout diagram and PC board silkscreen for orientation. Solder all
three pins.
25. Install C3, a 100pF ceramic capacitor (marked 100 or 101).
26. Install S1, the DPDT push-button switch. You'll want this part to be
seated correctly so that the power button moves freely when in the case.
Set it flush to the PC board before soldering all six pins.
27. Install C9, a 100uF electrolytic capacitor. Remember polarity!
28. Install C4, a 1000uF electrolytic capacitor. Polarity.
FM10C 13