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WhitakerAudio
– Check the heater wiring on the foil side of the board. Position so the wiring will rest
against the chassis when secured in place.
– Carefully place the AM tuner PWB in position with the underside of the chassis facing
upward. Make sure the lugs from C3 correctly mate with the C3gnd pads.
– Install a ground lug and screw onto the standoff in the corner of the PWB above the power
transformer. Make the screw finger-tight for now. This will hold the board in
approximately the correct position for installation of the top-side screws.
– Turn the chassis over while supporting the PWB from beneath the chassis.
– Install the 10 4-40 x 3/8-inch mounting screws from the top of the chassis to the socket
standoffs on the circuit board. Some adjustment may be needed for the sockets to achieve
proper alignment.
– After the sockets are in position, install the three screws for the standoffs at the corners of
the PWB. Do not tighten the screws until all screws have been threaded and the sockets
properly extend through the chassis cutouts so they are flush with the top of the chassis.
The AM tuner PWB has now been installed.
5.3.6.2 FM Tuner PWB
Locate the FM tuner PWB. Remove the screws that secure the sockets to the standoffs, and
remove the screws in the standoffs at the corners of the PWB (if present). Set these in a
convenient place. A close-up of the board ready for installation is shown in Figure 5.9.
– Check the heater wiring on the foil side of the FM tuner PWB. Position so the wiring will
rest against the chassis when secured in place.
– Carefully place the FM tuner PWB in position with the underside of the chassis facing
upward. Guide C55 onto the tuning shaft. The position of the capacitor with regard to the
front panel tuning knob is not important at this time.
– Install a ground lug and screw onto the standoff in the corner of the PWB above the power
transformer. Make the screw finger-tight for now. This will hold the board in
approximately the correct position for installation of the top-side screws.
Summary of Contents for AM/FM Stereo Tuner 2012
Page 1: ...WhitakerAudio AM FM StereoTuner User and Assembly Manual...
Page 11: ...11 AM FM Stereo Tuner Figure 1 1 Schematic diagram of the AM tuner section...
Page 17: ...17 AM FM Stereo Tuner Figure 1 2 Schematic diagram of the FM tuner section...
Page 34: ...34 WhitakerAudio Figure 3 1 Component layout for the AM tuner PWB...
Page 36: ...36 WhitakerAudio Figure 3 3 Component layout for the FM tuner PWB...
Page 69: ...69 AM FM Stereo Tuner Set the FM tuner board aside it will be used later b...
Page 101: ...101 AM FM Stereo Tuner Figure 5 11 Chassis view of the AM FM Stereo Tuner...
Page 159: ...159 AM FM Stereo Tuner...
Page 160: ...WhitakerAudio AM FM StereoTuner...
