Audio Dynamics 14635013 manual Wiring Instructions

WIRING INSTRUCTIONS

Refer to pictorial diagram #2 before and after each step. After making a connection, bend (dress) each lead or wire so that it follows the path shown in the diagram as closely as possible. After all connections have been made to a terminal and it is soldered cut off any excess wire.

1( ) Begin with the group of five leads from the power transformer PA-774, all of which come through the hole in the chassis opposite of fuse holder.

NOTE: Special instructions for wiring PB-028 the 240-volt power transformer, are at the end of these instructions.

When cutting transformer leads to correct length strip the insulation at the end of each lead to expose about ¼" of wire. Tin the exposed end, by heating it with the soldering iron and melting a bit of solder onto it; this will keep the end from fraying, and permits a more secure mechanical connection. Meas- ure the length with a ruler, from the chassis to the end of the lead, wile holding the lead straight out from and perpendicular to the chassis. Cut one of the black leads to 1½" in length, and connect it to lug #4 of the 5-lug terminal strip. Do not solder, remember, a connection is only to be soldered when the symbol (S) is printed after the instruction.

2( ) Cut the other black lead to 3½", and connect it to terminal B of the fuse holder (S).

3( ) Twist together the two red power transformer leads. Connect one of them to lug #1 of the 5-lug terminal strip.

4( ) Connect the other red power transformer lead to lug #2 of the 5-lug terminal strip.

5( ) Cut the red-and-yellow power transformer lead to 3½" in length, and connect it to chassis-mounting lug A of the filter capacitor.

6( ) The four remaining power transformer leads are con- nected next. Cut the green and green-and-white leads to 6" each, and twist them together, as shown in the diagram. Connect the green-and-white lead to pin #5 of V-3 on the LEFT circuit board.

7( ) Connect the green power transformer lead to pin #4 of V-3. IMPORTANT: Because the tube sockets lugs are small and closely spaced, it is imperative that all connections to them be made with care. Keep stripped wire ends as short as possible; insert them in the lugs up to insulation; cut off excess imme- diately after soldering each connection; check each time to be certain that nearby terminals and hard- ware cannot accidentally be touched by bare wire ends.

8( ) Cut the brown and the brown-and-white power transformer leads to 6". Twist them together, and connect the brown-and-white lead to pin #5 of V-6 on the RIGHT circuit board.

9( ) Connect the brown power transformer lead to pin #4 of V-6.

10( ) The LEFT output transformer leads are connected next. Carefully cut the blue-and-white and green-

and-white leads from the LEFT output transformer to exactly 2" in length. Strip and tin the ends, and twist the leads together, as in the diagram. Connect the blue-and-white lead to pin #7 of V-2 on the LEFT circuit board (S).

11( ) Connect the green-and-white lead to pin #9 of V-2

(S).

12( ) Twist together the blue and green leads from the LEFT output transformer. Connect the blue lead to pin #7 of V-3 on the LEFT circuit board (S).

13( ) Connect the green lead to pin #9 of V-3.

14( ) Connect the red lead from the LEFT output trans- former to lug #2 of the filter capacitor. This is the lug next to square symbol on the plastic under- side of the capacitor, and should be in the position shown in the pictorial diagram.

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