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20 W Stereo Integrated Audio Amplifier
on the power management PWB. Use a pair of long-nose pliers to make the connection on
FL51. Route the wire through the nearby cable clamp.
Examine the filter connections. The black wires on the Line and Load terminals should be on
the same side of the device.
– Prepare a 19-inch long #16 stranded black wire. Attach quick-disconnect connectors to
each end of the wire. Connect the wire between the
Hot-1
post on the right channel PWB
and the
LoadH
post on the power management PWB. Route the wire through the nearby
cable clamp
– Find the #22 black twisted pair wires from the front panel Power switch, SW51. Connect
to the
Switch1
and
Switch2
posts on the power management PWB.
– Find the #22 blue and black twisted pair wires from the preamplifier PWB. Connect the
blue wire to the
V+
post and the black wire to the
GND
post on the power management
PWB.
– Find the #22 white twisted pair wires from over-temperature switch, SW203. Connect the
wires to the
SW203
posts on the power management PWB.
– Insert the 4-terminal Molex connector on the
CONN201
post on the power management
PWB. The blue wires go to terminals #3 and #4.
– Check the position of R209. It is typically set for center rotation, which provides an auto-
off delay of about two hours.
– Find the #22 red 600 V wire from terminal #1 of the left channel PWB barrier strip.
Connect to the
B+sense
post on the power management PWB.
– Using the available tie wraps, organize the cabling to the power management PWB, and to
the right channel PWB. Be certain to provide sufficient wire lengths to permit the power
management PWB to be moved into position on the four mounting posts.
– Remove the L-shaped brackets holding the power management PWB. Set aside for use
later if needed.
– Move the power management PWB into position above the four 2.5-inch standoffs. Check
to make sure no wires are crimped or otherwise stressed.
Содержание JC Whitaker 20 W Stereo Integrated Audio Amplifier
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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 ...
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