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20 W Stereo Integrated Audio Amplifier
In the following steps, 4-pin Molex connectors will be used. After stripping the cable, place a
short (approximately 3/4-inch long) piece of heat-shrink tubing on each end of the audio cable.
For the end of the cable inserted into the Molex connector, process (apply heat) after the wires
have been inserted into the connector but before the cable is installed in the amplifier.
Hardware for the following steps can be found in the “4/12 Terminal Molex Housing and
Terminals” package.
Examine the Molex socket housing. The connector pins insert one way only. As each
connector pin is attached, check for a good crimp. Builders should note that the housing is held
against the PWB-mounted pins by the friction of the connector elements. In order to provide for a
good physical mating, it is recommended that any positions on the header that are not used for
wires be filled with a pin.
– Prepare a 26-inch long audio cable. Attach connector pins to each of the two wires on one
end of the audio cable. Insert the connector pins into the socket housing as follows: shield
to position #1 and white to position #2.
– 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.
– Insert the Molex socket into the
Conn1
connector on the right channel PWB. Note that the
drain wire goes to the first “GND” position.
– Route the cable to the rear of the chassis using the cable clamps along the side of the
chassis.
– Attach a connector pin to the white wire in the audio cable from Conn1 on the right
channel PWB. Clip off the shield as it is not used. Insert the connector pin into the socket
housing as follows: white to position #2.
– Insert the 4-pin Molex socket for the right channel feedback connection in the
Conn1
header on the right channel speaker PWB. Use the legend on the PWB as a guide.
– Prepare a 26-inch long audio cable. Attach connector pins to each of the two wires on one
end of the audio cable. Insert the connector pins into the socket housing as follows: shield
to position #1 and white to position #2.
Содержание JC Whitaker 20 W Stereo Integrated Audio Amplifier
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Страница 38: ...38 WhitakerAudio Figure 3 1 Component layout for the Amplifier PWB 1 right board ...
Страница 40: ...40 WhitakerAudio Figure 3 2 Rectifier PWB component layout ...
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