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20 W Stereo Integrated Audio Amplifier
position #1 and white to position #2. Process (heat) the end of the cable at the 4 pin Molex
connector.
– Insert the free end of the 21-inch long audio cable wires into the 12 terminal Molex header
as follows:
•
White to pin #9 (left output)
•
Shield to pin #10 (GND)
– Using a heat gun, process the heat shrink tubing on the end of the cable.
– Prepare a 10-inch long #22 black wire. Attach a connector pin to one end of the wire.
Insert into the 12 terminal Molex header as follows: black to pin #12 (GND).
– Insert the 12 terminal Molex connector just assembled into
CONN105
on the preamplifier
PWB. Note that pin 1 faces the rear of the chassis.
– Find the cable from terminals 1–4 of CONN105 on the preamplifier board. Route the
cable to the front panel
Bass Control
. Connect the wires to R127b as follows:
•
Red to terminal #1 (low). Solder.
•
White to terminal #2 (arm). Solder.
•
Black to terminal #3 (high). Solder.
•
Clip off the shield drain wire. It is not used on this end.
– Find the cable from terminals 5–8 of CONN105 on the preamplifier board. Route the
cable to the front panel
Treble Control
. Connect the wires to R132b as follows:
•
Red to terminal #1 (low). Solder.
•
White to terminal #2 (arm). Solder.
•
Black to terminal #3 (high). Solder.
•
Clip off the shield drain wire. It is not used on this end.
– Find the audio cable from terminals 9–10 of CONN105 on the preamplifier board. Insert
the 4-pin Molex connector into the
Conn2
position on the left channel PWB. Make certain
to properly orient the connector on the board.
– Find the #22 black wire from terminal 12 of CONN105. Connect to the #6 position (right)
on SW101. Solder (2 wires).
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 ...