WhitakerAudio JC Whitaker 20 W Stereo Integrated Audio Amplifier, Manual

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20 W Stereo Integrated Audio Amplifier
the shaft. Secure with the nut provided. Do not tighten. The terminals of the
potentiometers should face downward toward the chassis bottom plate.
– Install R121, the Balance control – 10 k
Ω
, linear taper potentiometer, dual gang, panel
mount . Note that there is a key tab at the base of the potentiometer. Using the pliers, bend
this tab out of the way. Place a flat washer on the shaft. Feed the component through the
chassis/front panel. Install a flat washer on the shaft. Secure with the nut provided. Do not
tighten. The terminals of the potentiometer should face downward toward the chassis
bottom plate.
– Install R127, the Bass control – 50 k
Ω
, linear taper potentiometer, dual gang, panel
mount . Note that there is a key tab at the base of the potentiometer. Using the pliers, bend
this tab out of the way. Feed the component through the chassis/front panel. Install a flat
washer on the shaft. Secure with the nut provided. Do not tighten. The terminals of the
potentiometer should face downward toward the chassis bottom plate.
– Install R132, the Treble control – 50 k
Ω
, linear taper potentiometer, dual gang, panel
mount . Note that there is a key tab at the base of the potentiometer. Using the pliers, bend
this tab out of the way. Feed the component through the chassis/front panel. Install a flat
washer on the shaft. Secure with the nut provided. Do not tighten. The terminals of the
potentiometer should face downward toward the chassis bottom plate.
– Examine the 1/4-inch headphone jack. Note that one side is keyed at a 45-degree angle.
This edge denotes the common (ground) connection. The keyed edge should face down
toward the bottom of the chassis. Mount the 1/4-inch headphone jack to the chassis/panel.
Secure using the nut provided. Do not tighten.
Find rotary switch SW101. Find one of the front panel knob. Remove the knob from the
package and attach to the shaft of SW101 (the set screw should work against the flattened side of
the shaft). Turn the switch shaft and observe the number of positions the switch is set for. (Hold
the body of the switch with a rag or gloves to avoid the sharp edges of the terminal posts.) If three
positions are found, then the switch is configured correctly. For some number of positions other
than three, remove the knob and remove the mounting nut on the shaft of SW101. You will note
there is a keyed “stop” on the shaft. This stop determines the number of positions that the switch