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20 W Stereo Integrated Audio Amplifier
•
Cut a 1-inch long piece of small heat shrink tubing and slip over the resistor and splice
points. Process (heat) with the heat gun.
•
Connect the free end of the white wire to the #1 terminal (low) on
Balance Control
R121a. Do not solder.
•
Find R147 (6.8 k
Ω
, 0.5 W), which was set aside previously. Plate pieces of insulating
spaghetti on each side of the resistor, leaving about 1/4-inch exposed.
•
Connect one end of the resistor to SW101 arm (left). Solder. Connect the other end of the
resistor to the #3 terminal (high) on
Balance Control
R121b. Do not solder.
– Prepare a 3-inch long #22 white wire. Connect one end to terminal #1 (low) of
Balance
Control
R121a. Solder (2 wires). Connect the other end of the wire to terminal #3 (high)
on
Volume Control
R122a. Solder.
– Prepare a 3-inch long #22 white wire. Connect one end to terminal #3 (high) of
Balance
Control
R121b. Solder (2 wires). Connect the other end to terminal #3 (high) on
Volume
Control
R122b. Solder.
– Prepare a 3-inch long #22 black wire. Connect one end to terminal #2 (arm) of
Balance
Control
R121a. Solder. Connect the other end to terminal #1 (low) of
Volume Control
R122a. Do not solder.
– Prepare a 3-inch long #22 black wire. Connect one end to terminal #2 (arm) of
Balance
Control
R121b. Solder. Connect the other end to terminal #1 (low) of
Volume Control
R122b. Do not solder.
– Prepare a 15-inch long audio cable. Attach connector pins to each of the two wires (the
white wire and the shield) on one end of the audio cable. Insert the connector pins into a 4-
conductor Molex socket housing as follows: white to position #1 and shield to position #3.
– Cut two short pieces of small heat-shrink tubing, each about 3/4-inch long. Place the
tubing at each end of the audio cable. Process.
– Prepare a 15-inch long audio cable. Attach connector pins to each of the two wires (the
white wire and the shield) on one end of the audio cable. Insert the connector pins into the
4-conductor Molex socket housing as follows: white to position #2 and shield to position
#4.
Summary of Contents for JC Whitaker 20 W Stereo Integrated Audio Amplifier
Page 1: ...20 W Stereo Integrated Amplifier WhitakerAudio 20 W Stereo Integrated Audio Amplifier ...
Page 11: ...11 20 W Stereo Integrated Audio Amplifier Figure 1 1 b ...
Page 16: ...16 WhitakerAudio Figure 1 2 b ...
Page 20: ...20 WhitakerAudio Figure 1 3 Power management circuit for the 20 W integrated stereo amplifier ...
Page 38: ...38 WhitakerAudio Figure 3 1 Component layout for the Amplifier PWB 1 right board ...
Page 40: ...40 WhitakerAudio Figure 3 2 Rectifier PWB component layout ...
Page 45: ...45 20 W Stereo Integrated Audio Amplifier Figure 3 4 Layout of the speaker terminal PWB ...
Page 84: ...84 WhitakerAudio Figure 5 6 Power management PWB a component side b foil side a b ...
Page 188: ...20 W Stereo Integrated Amplifier WhitakerAudio 20 W Stereo Integrated Audio Amplifier ...
Page 196: ...196 WhitakerAudio ...
