Specifications

FX 146 • 108
 G18a. Insert and solder U10 as in step G15a.
Soldering the remaining pins for U7, U8, U9 and U10 may be done either as
a single operation or at any other pace preferred by you to ensure careful
work (no missed pins, no solder bridges). As you complete the soldering of
each IC, mark its respective assembly step:
 G15b. 14 pins soldered on U7.
 G16b. 14 pins soldered on U8.
 G17b. 14 pins soldered on U9.
 G18b. 14 pins soldered on U10.
Install the following resistors and capacitors:
 G19: R55, upright, 10K (brown-black-orange).
 G20: R44, upright, 22K (red-red-orange).
 G21: R53, upright, 22K (red-red-orange).
 G22: C69, .01 uf (marked .01 or 103).
 G23: C68, .01 uf.
 G24. C91, .01 uf.
 G25. C98, .01 uf.
 G26: R43, upright, 10K (brown-black-orange).
 G27: R52, also 10K.
 G28: R103, upright, 47K (yellow-violet-orange).
 G29: R104, upright, 10K.
 G30: R90, upright, 10K.
 G31: R47, upright, 10K.
 G32: R102, upright 10K.
 G33: R48, upright, 10K.
 G34. Install C85, .1 uf (marked .1 or 104).
 G35. Install diode D8 type 1N914 or 1N4148. Orient the banded
cathode end correctly.