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Ten-Tec 4229 - Meter Switch Board Assembly; Meter Switch Board Component Mounting; Soldering and Finalizing Meter Switch Board

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att
Te
green
goes
to
the
third
hole.
The
red
and
green
insulation
on
these leads
does
not
have
to
be
mechanically
stripped
as
it
will
remove
itself
at
sol-
dering
temperature.
The
transformer
stands
on
edge
and
can
support
itself
on
its
leads,
but
may
be
secured
to
the
board
surface
with
a
puddle
of
RTV
cement
or
similar
material.
(
)
F.
Polarity
is
not
critical
on
any
of
the
remaining
components.
(
)
G..
Note,..that.only
one
lead
of
C21
is
attached
to
the
board.
Leave
the
other
lead
at
full
length
to
be
attached
later.
(
)
H.
With
all
components
mounted
and
their
leads
properly
cut
and
dressed
along
their
particular
foil
patterns
(not
shorting
to
adjacent
patterns),
all
joints
may
be
soldered.
METER
SWITCH
BOARD
ASSEMBLY
#80958
REFER
TO
FIGURE
7.
(
)
1.
All
components
mount
on
the
top
(
non
foil
side)
of
this
board.
R29
10K
3
‘
(brown
black
orange)
3
PIN
R28 47K
(yellow
violet
orange)
R30
—_
——
R31]
10K
TRIMPOT
SWITCHES
>——
a
10K
TRIMPOT
<2
PIN
;
:
FIGURE
7
-
METER
SWITCH
BOARD
(
)
2.
Insert
all
pins
of
the
three
push
switches
in
the
holes
provided
in
the
board.
The
actuators
extend
away
from
the
board.
Examine
the
terminal
pins
of
the
switches
and
straighten
any
that
may
have
become
bent.
Carefully
insert
the
pins
in
the
proper
holes
until
the
switches
are
seated
against
the
board.
You
may
solder
some
or
all
of
the
terminals
to
the
foil
to
hold
in
place.
CAUTION:
Use
a
small
iron
tip
and
minimal
solder
on
each
joint
to
avoid
un-
wanted
shorts.
(
)
3.
Insert
the
two
thumbwheel
potentiometers
(R30
and
R31)
through
the
three
holes
provided
for
each.
They
are
both
of
same
value
and
the
adjusting
wheels
face
the
left
edge
of
the
board.
(
jee.
Insert
the
two
1/4
watt
resistors
oriented
front
to
rear
in
the
four
holes
provided.
R28
(47K
yellow-violet-orange)
is
located
to
the
left
and
R29
(10K
brown-black-orange)
is
to
the
right.
These
are
located
between
the
thumbwheel
potentiometers
and
parallel
to
them.
Dress
and
cut
their
leads
flat
against
the
foil
pattern
from
each
hole.
( )
5.
Install
two
three-pin
connectors
along
the
rear
edge
and
the
two-pin
con-
nector
along
the
right
edge
of
the
board.
The
raised
portion
of
each
con-
nector
is
oriented
toward
the
center
of
the
board.
( )
6.
All
components
are
now
mounted.
Solder
each
terminal
to
the
foil
at
each
®
hole.
()
7.
Install
the
black
cap
on
each
switch
actuator.
These
snap
in
place
and
should
hold.
A
touch
of
cement
can
be
applied
to
the
actuator
before
installing
the

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