Instruction manual

DDF1  22
 Locate two(2) 100uF capacitors [100uF]
90. Install C30, 100uF electrolytic capacitor.
91. Install C29, 100uF. electrolytic capacitor.
 Locate three(3) 1uF capacitors [1uF]
92. Install C8, 1uF electrolytic capacitor.
93. Install C25, 1uF electrolytic capacitor.
94. Install C32, 1uF electrolytic capacitor.
 Locate one(1) 10uF capacitor [1uF]
95. Install C33, 10uF electrolytic capacitor.
 Locate one(1) .47uF capacitors [.47uF]
Notice the pattern on the board for this capacitor, C20, is incorrect. Be care-
ful and install the “-” or banded lead so it is toward R8 and the edge of the
board and the unmarked or “+” lead is toward the center of the board.
96. Install C20, .47 uF electrolytic capacitor.
 Locate two(2) 2N3904 transistors [2N3904 or 3904]
97. Install Q2, 2N3904 transistor. The flat side must be placed as
shown on the PC board, facing R24. Mount it as close to the board as
possible without forcing it. Carefully solder all three leads.
98. Install Q1, 2N3904 transistor. Be sure to orient the flat side as
shown in the parts diagram and keep it close to the board as you did
with Q2.
 Locate one(1) two pin speaker connector. This is a small connector
which looks like two wire leads inserted through a piece of plastic.
[Actually that’s exactly what it is :-) ]
99. Install speaker connector J4.
That’s all the components that are installed on this side of the main circuit
board. Take a few minutes to double check your work. Make sure all values
are correct and take special notice of the placement of the diodes, IC’s and
electrolytic capacitor orientation. It’s also a good idea to check your soldering
and make sure you didn’t slobber any solder, (say that three times fast),
across any connections. Remember that time spent here can save a lot of
time (and expense and frustration!) when the unit is initially turned on.