Dyna FM-3 - Page 11

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6(

\)

Cut

a 4

1

12"

black

wire.

Strip

one

end

¥.t"

and

feed

it

through

lug

#1

of

the

volume

control

and

con-

nect

it

to lug

#4

of

the

control.

7 ( . )

Connect

one

end

of

an

8

1

/

2

"

black

wire

and

one

end

of a 5

1

/

2

"

black

wire to

lug

#4

of

the

control

(S-3).

8 (

'"

)

Connect

one

end

of

an

8

1

12"

green wire to lug # 5 of

the

control

(S).

9

(.

)

Connect

one

end

of a 2

1

/

2

"

green

wire

to

lug

#6

of

the

control

(S).

lO(

,h

Twist

together

an

8"

black

and

an

8"

red

wire.

Connect

onc

cnd

of

the

black

wire to

lug

#1

of

the

control

(S-2).

Connect

the

corresponding

end

of

the

red

wire

to

lug

#2

of

the

control

(S).

11 ( , )

Connect

one

end

of a

3"

red

wire

to

lug

#3

of

the

control

(S).

12(

V)

Twist

together

the

red

wire from

lug

#3

and

the

green

wire

from

lug

#6

of

the

control.

Connect

the

red

wire

to

lug

# 1

of

the

switch.

Connect

the

green

wire to

lug

#2

of

the

switch.

13 (

i )

Connect

one

end

of a 5"

red

wire

to lug # 1 of

the

switch

(8-2).

14 (

:'

)

Connect

one

end

of a 4"

green

wire to lug

#2

of

the

switch

(S-2).

15(

.~

)

Position

the

shorter

(5

~

")

black

wire from lug

#4

of

the

control

across

the

switch

bracket

and

twist

it

together

with

the

red

wire from

switch

lug

#1

and

the

green

wire

from

switch

lug

#2.

These

wires will

be

soldered

to

eyelets

on

PC-12

later.

16 ( .J)

Cut

two

red

wire--s

each

6Y/,

long

and

twist

them

together.

Connect

one

end

of

one

wire to

switch

lug

#4

(S).

Connect

the

corresponding

end

of

the

other

wire

to

switch

lug

#5

(S).

This

completes

the

front

panel

sub-assembly.

Set

this

aside.

CHASSIS

WIRING

1(

J)

Strip

a

2%"

piece

of

wire bare.

Feed

one

end

through

the

rear

tab

of

the

tuning

capacitor

Cl

that

projects

through

the

steel chassis,

and

then

through

the

other

tab,

and

over

to

the

first

tab

that

projects

through

the

PC-7

board.

See

pictorial.

Solder

all

three

points

and

trim

off

the

excess.

The

wire

should

be

soldered

to

the

chassis

at

both

points.

It

is essential

that

a good

bond

be

made

to

the

etched

circuit

board.

2 (

J)

Solder

all

four

of

the

remaining

connecting

lugs

of

the

tuning

capacitor

which

project

through

PC-7.

3 (

J)

Twist

together

the

two

red

and

the

red-yellow

power

transformer

leads.

Connect

one

red

lead

to

pin

# 1 of

socket

V9

(S).

Connect

the

other

red

lead

to

pin

#7

of

socket

V9

(8).

Connect

the

red-yellow

lead

to

ground

lug

A

on

filter

capacitor

C32.

4(

J)

Connect

one

end

of

a

2%"

black

wire

to

lug

# 3

of

the

five

lug

terminal

strip.

Connect

the

other

end

to

ground

lug

A

on

filter

capacitor

C32

(S-2).

[)

(J)

Connect

the

green

power

transformer

lead

to lug

#2

of

the

five lug

terminal

strip.

Note

that

the

lead

is

inserted

into

the

lower hole of

the

lug

(S).

Solder

to

this

lower

hole

of

the

lug

only.

The

top

section

of

the

lug will

be

soldered

later.

6

(J

)

Connect

the

green-white

power

transformer

lead

to lug

#3

of

the

five

lug

tenninal

strip.

This

lead

is

inserted

into

the

lower

hole

of

the

lug

(S).

Solder

to

this

point

on

the

lug

only.

The

top

section

of

this

lug

will

be

soldered

later.

7

(i)

Twist

together

the

two

black

power

transformer

(PA-509)

leads.

Connect

one

lead

to

lug

#2

of

the

AC

outlet.

Connect

the

other

lead

to

lug

#2

of

the

fuse

holder

(S).

NOTE:

If

you

an~

u~in~

the

optional

l20J240

volt

power

t.ransformer

PB.OI2,

replace

this

step

with

the

steps

specified

on

Page

J9.

8

()

COJU1ect

one

end

of a

1%"

green wire to

lug

#2

of

the

five

lug

terminal

strip.

Connect

the

other

end

to

pin

#4

of

socket

V9

(8).

9(

J)

Connect

one

end

of a 1

1

/

2

"

black

wire to lug

#3

of

the

five

lug

terminal

strip.

Connect

the

other

end

to

pin

#5

of

socket

V9

(8).

10

C'

)

Connect

one

end

of

a

500

ohm

5

watt

resistor

to

lug

# 1 (semi-circle

symbol)

-of

the

filter

capacitor

C32.

COJU1ect

the

other

end

to

lug

#2

(square

symbol)

of

the

capacitor.

11

('. )

Connect

one

end

of a

2"

red

wire

to

pin

#3

of

socket

V9

(S).

Connect

the

other

end

to

lug

#1

of

the

filter

capacitor

C32

(S-2).

12(

...

)

Connect

one

end

of

the

other

500

ohm

5

watt

resis-

tor

to

lug

# 2 of

the

filter

capaci

tor C32

(S-2).

Connect

the

other

end

to lug

#3

(triangle

symbol)

j

of

the

capacitor.

13 ( )

Connect

one

end

of a 470

olun

(yellow-violet-

brown)

one

watt

resistor

to

lug

#3

of

the

filter

capacitor

C32.

Connect

the

other

end

to

lug

#4

(no

symbol)

of

the

capacitor.

The

following

steps

will

refer

to

eyelets

on

the

etched

circuit

boards.

Always

he

certain

that

you

are

connecting

to

the

correct

point.

The

electrical

requirements

of

the

layout

of

the

circuit

board,

combined

with

the

tight

space

allowance,

may

lead

to

confusion

unless

the

relationship

of

numerals

and

eyelets

is

carefully

observed.

Remember

that

when

soldering

to

an

eyelet,

a

smooth

well-soldered

connection

must

be

made

from

the

wire to

the

eyelet,

and

Irom

the

eyelet

to

the

copper

on

the

board.

Connecting

to

an

eyelet

is

easier

if

the

wire is

"tinned"

first

by

heating

it

with

the

iron

and

applying

a

light

coat-

ing

of

solder

to

the

bared

end.

14(

I)

Connect

one

end

of a 3

Y2"

green

wire to

eyelet

# 1

on

PC-7

(8).

Connect

the

other

end

to

eyelet

# 5

(S).

Position

this

wire

as

in

the

pictorial.

15

(~

)

Connect

one

end

of a

6o/.t"

green

wire

to

eyelet

#6

on

PC-

7

(S).

Connect

the

other

end

to

eyelet

#13

on

PC-8

(S).

16(

J)

Connect

one

end

of

a

3"

green wire to

eyelet

#14

on

PC-8

(S).

Connect

the

other

end

to

eyelet

#17

(S).

11

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