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WhitakerAudio
– Prepare an 18-inch long #18 stranded black wire. Attach quick-disconnect terminals to
each end of the wire. Connect between the
hot
terminal of filter FL51 and the
AChot
post
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 #18 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.
– Prepare two 23-inch long #22 brown wires, twisted. Attach quick-disconnect terminals to
one end of each wire. Connect the twisted pair to the
SW203
posts on the power
management PWB. Route the free end of the wires to the power management expansion
PWB, using the available rear cable clamps. Attach quick-disconnect terminals to the free
ends of the wires. They will be connected later.
– 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 the B+ terminal on the left channel PWB. 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.
Содержание J C Whitaker 20 W Stereo Audio Amplifier
Страница 1: ...20 W Stereo Amplifier WhitakerAudio 20 W Stereo Audio Amplifier...
Страница 10: ...10 WhitakerAudio Figure 1 1 b...
Страница 14: ...14 WhitakerAudio Figure 1 2 The preamplifier power supply PWB...
Страница 17: ...17 20 W Stereo Audio Amplifier Figure 1 3 Power management circuit for the 20 W Stereo Amplifier...
Страница 20: ...20 WhitakerAudio Figure 1 4 Power management expansion circuit for the 40 W Stereo Amplifier...
Страница 37: ...37 20 W Stereo Audio Amplifier Figure 3 1 Component layout for the Amplifier PWB 1 right board...
Страница 39: ...39 20 W Stereo Audio Amplifier Figure 3 2 Rectifier PWB component layout...
Страница 42: ...42 WhitakerAudio Figure 3 3 Component layout for the Amplifier PWB 2 left board...
Страница 44: ...44 WhitakerAudio Figure 3 4 Layout of the speaker terminal PWB a right channel board b left channel board a b...
Страница 46: ...46 WhitakerAudio Figure 3 5 Layout of the preamplifier power supply PWB...
Страница 51: ...51 20 W Stereo Audio Amplifier Figure 3 7 Component layout of the power management expansion PWB...
Страница 86: ...86 WhitakerAudio Figure 5 7 Power management expansion PWB a component side b foil side a b...
Страница 135: ...135 20 W Stereo Audio Amplifier Figure 5 15 Chassis view of the 20 W Stereo amplifier...
Страница 179: ......
Страница 180: ...20 W Stereo Amplifier WhitakerAudio 20 W Stereo Audio Amplifier...
Страница 184: ...184 WhitakerAudio Figure 1 1 Completed cable assembly...