86
WhitakerAudio
•
Two 50 k
Ω
linear taper dual potentiometer – Bass control (R127) and Treble control
(R132)
•
Two 35 mm jacks (J1 and J105)
•
One 1/4-inch jack (J2)
•
Pilot lamp (PL51)
•
Power switch (SW51)
•
Speaker on/off switch (SW52)
•
Auto-Off enable/disable switch (SW202)
•
Input switch (SW101)
•
Front panel knobs (quantity = 5)
– Install the front panel handles using the #8 hardware provided. Be careful to not scratch
the finish. Note that the front panel handles are decorative and should not be used to move
the amplifier after it is has been completed.
– Find SW52, the Speaker On/Off switch. There are two nuts provided; only one will be
used. Place the lockwasher provided on the shaft. Note that one side of the mounting shaft
has a key; this key should face upward. Insert the switch into the chassis and then fit the
front panel onto the shaft. Use one of the nuts to secure the switch/chassis/panel assembly.
Do not tighten.
– Find SW202, the Auto-Off enable/disable switch. There are two nuts provided; only one
will be used. Place the lockwasher provided on the shaft. Note that one side of the
mounting shaft has a key; this key should face downward. Insert the switch into the
chassis and then fit the front panel onto the shaft. Use one of the nuts to secure the switch/
chassis/panel assembly. Do not tighten.
– Install R122, the Volume control –
10 k
Ω
, audio taper potentiometer, dual gang, panel
mount
. Using a pair of long-nose pliers, bend the two sets of three terminals slightly
toward the back of the potentiometer. Note that there is a key tab at the base of the
potentiometer. Using the pliers, bend this tab toward the face of the component so it is out
of the way. Mount R121 as follows. Place a flat washer on the shaft and then a
lockwasher. Feed the component through the chassis/front panel. Install a flat washer on
Содержание JC Whitaker 20 W Stereo Integrated Audio Amplifier
Страница 1: ...20 W Stereo Integrated Amplifier WhitakerAudio 20 W Stereo Integrated Audio Amplifier ...
Страница 11: ...11 20 W Stereo Integrated Audio Amplifier Figure 1 1 b ...
Страница 16: ...16 WhitakerAudio Figure 1 2 b ...
Страница 20: ...20 WhitakerAudio Figure 1 3 Power management circuit for the 20 W integrated stereo amplifier ...
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 ...
Страница 43: ...43 20 W Stereo Integrated Audio Amplifier Figure 3 3 Component layout for the Amplifier PWB 2 left board ...
Страница 45: ...45 20 W Stereo Integrated Audio Amplifier Figure 3 4 Layout of the speaker terminal PWB ...
Страница 84: ...84 WhitakerAudio Figure 5 6 Power management PWB a component side b foil side a b ...
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Страница 196: ...196 WhitakerAudio ...