CHECK PICTORIAL DIAGRAMS #1 AND #3
BEFORE AND AFTER DOING EACH STEP.
1( ) Mount the two 3-screw terminal strips on the out-
side of the chassis in the cutouts provided, using
#4 screws, nuts and lockwashers (the smallest size
supplied). The pictorial diagram shows the correct
orientation of the terminal strips.
2( ) Mount the fuse holder in its cutout, fastening it in
place with the circular brass threaded ring. The rub-
ber washer goes on the outside of the chassis; by
maintaining pressure against the fuse holder from the
outside, with one hand, while tightening the brass
ring with the other hand. The fuse holder can be
mounted securely without tools. Be sure that the
fuse holder terminals are oriented exactly as shown
in the diagram. After mounting, terminal lug B
should be bent away from the body of the fuse
holder at the angle shown in the pictorial diagram.
3( ) Mount the 5-lug terminal strip on the side of the
chassis, as shown in the diagram, using a #4 screw,
lockwasher and nut.
4( ) Install the four sockets supplied for V-2, V-3, V-5
and V-6 on top of the two PC-13 circuit boards. Note
that the sockets are not all installed in the same way;
pictorial diagram #2 shows the correct orientation
for each socket. Mount each socket with two sets
of #4 hardware. Do not over-tighten.
5( ) Mount the two PC-13 circuit boards in the rectangu-
lar cutouts at each end of the chassis; note that the
boards are mounted from the inside of the chassis.
Before mounting each board with four sets of #4
hardware, study the diagram to be sure that the
boards will be properly oriented on the chassis.
6( ) Install the two input sockets from the inside of the
chassis, using two sets of #4 hardware to mount
each socket. The long (center) lug of each socket
should be closest to the circuit board.
7( ) Mount the filter capacitor in the cutout provided.
First, look at the symbols stamped in the plastic
at the base of each connecting lug; These
must
be
oriented as shown in the pictorial diagram. Insert
the four mounting lugs of the capacitor in the slots
and then twist each of the mounting lugs one-quarter
turn with a pliers while holding the capacitor snugly
against the chassis with your other hand.
8( ) Pass the leads of one of the output transformers
(marked Z-565) through the two holes provided in
the chassis. The orange, black and yellow leads go
through the hole closest to the center of the chassis,
as shown in the diagram. Mount the transformer
loosely with four #8 screws, nuts and lockwashers
(the largest size supplied). After adjusting its posi-
tion so that it is as close to the circuit board as
possible , tighten the screws.
9( ) Pass the leads of the other output transformer
(Z-565) through the two holes provided in the
chassis, again observing that the black, orange and
yellow leads go through the hole closest to the center
of the chassis. Mount the transformer loosely with
four sets of #8 hardware, position it as close to the
circuit board as possible, and tighten the screws.
10( ) Pass the leads of the power transformer (PA-774)
through the two holes provided at the center of the
chassis. A group of four leads go through the hole
nearest to the fuse holder, and five* leads through
the other hole. Mount the power transformer with
four sets of #8 hardware, but do not tighten the
screws immediately. First, center the power trans-
former so that it is evenly spaced between the two
output transformers. Then, tighten the screws.
11( ) Insert the rubber grommet in the hole in the chassis
through which the line cord is to pass.
*Seven leads in 240-volt transformer PB-028, for use outside the United
States. Special instructions for installing PB-028 begin at the con-
clusion of these instructions.
5
