23[7 Select the 6 black 5/8"screws, the 6 spacers, and 6 small nuts. Insert the screws from the outside of the back panel at the locations nearer the center of the panel (not in the end holes marked “Grounds”). Install a spacer on each screw and tighten them. Place the
240 Select the 2 small nuts and the 2 knurled thumb nuts. Install a nut on each of the Ground screws, making sure the lockwasher surface is tight against the panel. It must cut through the painted surface to make a chassis ground connection . Then add the thumb nuts.
25 0 With a pair of pliers, carefully twist the 8 lugs on the AC outlets
26 0 Cut a 2¼” piece of the bare buss wire. Slide it through lug #2 of AC outlet B and connect it to lug #l and to lug #3. Solder lugs 1 and 2.
27 0 Cut a 3%” length of bare wire. Slide it through AC outlet lugs #6 and #7, and connect it to lug #5 and to lug #8. Solder lugs 5,6 and 7.
28 0 Prepare a 13” length of white wire. Connect one end to AC outlet C, lug #3.
29 0 Prepare a 13” blue wire. Connect one end to outlet D lug #4. Place this and the following wire over the transformer.
30 0 Prepare a 12½” length of yellow wire. Connect one end to outlet D lug #8.
31 0 Select the two side pieces, the rubber grommet, and 4 sets of #6 hardware. Install the grommet in the side piece location adjacent to the power transformer when the flanges bend towards the outside of the unit. Before bolting this piece in position, pass the line cord through the grommet from the outside, and under the transformer. From the inside thread the 3 wires which come from the AC outlets and over the top of the transformer out through the grommet. Fasten both side pieces to the back panel.
32 0 Connect the shorter line cord conductor to outlet D lug #8.
33 0 Join the front and rear halves of the preamp so that the tabs on the main board rear bracket ate outside the side pieces. Select 2 sheet metal screws and fas- ten the bracket tabs to the side pieces.
34 0 Plug the two flat wire assemblies onto the pin con- nectors on
35 IJ Prepare a 1%” piece of white wire. Connect one end to the rear lug of the power switch. (S). Connect the other end to eyelet Y of
36 q Select the white wire from the tear grommet. Con- nect it to eyelet W on
37 0 Select the blue wire from the grommet. Connect it to the side lug of the power switch. (S).
38 0 Select the yellow wire. Connect it to eyelet T on
The transformer leads may be shortened as desired for neatness, but if there is any possibility that the transformer may be connected for a different line voltage for use out- side the USA, be sure to leave each lead long enough for any alternative connection. We suggest that these leads be made just long enough that they can be twisted together for neatness, and placed outside the end piece where they can be later secured with a wire tie.
39 0 Connect the
40 0 Connect the two Red leads to eyelets B and C along the rear edge of the board. Solder both.
For 120 volt wiring as in the USA, the following lead con- nections are to be used. Refer to the alternative line vol- tage diagrams in the manual for other line voltages.
41 0 Connect each lead as follows and solder: Brown/White to eyelet D Black/White to eyelet E
Brown/Red to eyelet F Black/Red to eyelet M Brown to eyelet R Black to eyelet S
42 0 Connect the short black wire from the forward lug of the phone jack to eyelet G2. (S).
43 0 There are two groups of wires connected to the phone jack under
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