Instruction manual

DDF1  16
 Locate two(2) 47 ohm resistors [yellow-violet-black]
34. Install R51, 47 ohm.
35. Install R42, 47 ohm.
 Locate two(2) 330 ohm resistors [orange-orange-brown]
36. Install R25, 330 ohm.
37. Install R17, 330 ohm.
 Locate two(2) 22K ohm resistors [red-red-orange]
38. Install R8, 22K ohm.
39. Install R32, 22K ohm.
 Locate two(2) 68K ohm resistors [blue-gray-orange]
40. Install R33, 68K ohm.
41. Install R29, 68K ohm.
 Locate 0ne(1) 3.3K resistor [orange-orange-red]
42. Install R14, 3.3K ohm.
 Locate one(1) 18K ohm resistor [brown-gray-orange]
43. Install R28, 18K ohm.
 Locate one(1) 27K ohm resistor [red-violet-orange]
44. Install R4, 27K ohm.
 Locate one(1) 100K ohm resistor [brown black-yellow]
45. Install R18, 100K ohm.
Next we’ll install the IC’s and diodes. Be careful and install each IC in the
correct orientation as indicated by the pattern on the board.
 Locate the three(3) LM324 Op-amp IC’s, labeled LM324.
46. Install U3, LM324 op amp.
47. Install U1, LM324 op amp
48. Install U2, LM324 op amp.
 Locate the 74HC4515 IC
49. Install U11, 74HC4515 IC.
 Locate the 74HC161 IC
50. Install U7, 74HC161 IC.
 Locate the 74HC14 IC
51. Install U12, the 74HC14 inverter IC.