WhitakerAudio J C Whitaker 20 W Stereo Audio Amplifier, Manual

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– Mount the external power supply connector using the #4 hardware provided. The socket
mounting pad rests against the outside of the back panel. Note the pin numbers printed on
the connector side of the socket. Orient the socket so the lettering is upright when viewed
from the rear panel. Set the companion plug and terminals aside. They will be installed
later.
– Collect the free end of the wiring harness. Insert the Molex terminals into the 8-pin Molex
housing as follows:
• #22 black wire to pin #1
• #22 white wire to pin #2
• #22 white wire to pin #3
• #22 red wire to pin #4
• #18 green wire to pin #5
• #18 green wire to pin #6
• #22 blue wire to pin #7
• #22 blue wire to pin #8
Leave the Molex connector free. It will be connected later to the preamplifier power supply
PWB.
The auxiliary power connector has now been installed. Double-check your work.
The back panel components have now been installed. Figure 5.10 shows the back panel and
top of the chassis at this stage in construction.
5.6.3 Cable Clamps and Related Hardware
Some of the cable clamp mounting screws will not be accessible after the PWBs have been
installed. Therefore, they need to be installed first. Three of the screws that hold the cable clamps
also serve as mounting posts for the acrylic cover.
See the chassis layout drawing in Figure 5.11. Note the locations of the cable clamps. Note
also that three cable clamp positions are also identified as acrylic cover mounting posts.
– Find the cable clamp hardware package. There are ten sets in this package. Install the
cable clamps using the #6 hardware provided for the six single-purpose cable clamps
(those not designated as also a acrylic cover mounting post). Note that the flat washer