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3.
Remove
four
screws
that
hold
mounting strip to metal chassis.
The entire
assembly can
now be
released.
The
new
assembly should
be
placed
in
the
same
position occupied
by the one
just
removed.
4.
Replace the four
screws
that
hold
mounting strip to metal chassis.
5.
Replace and resolder all leads to the three
transformers and
two pin
jacks
as
indicated by the
tags previously attached
to them.
ANTENNA
lsr
R.F.
2*
R.
F.
COIL
TRANSFORMER TRANSFORMER
3"D
R
FILAMENT
TRANSFORMER
RESISTOR
GRID
COND.
-GRID
LEAK
A.E
CONDENSER
2"°R.FGRID
3"°R.FGRID
BY-PASS
A.F
VOLUME
RESISTOR RESISTOR
CONDENSERS
TRANSFORMERS
CONTROL
Figure
9-Sub-chassis
assembly showing
antenna
coil,
radio frequency
coils,
by-pass
condensers, resistances and audio frequency
transformers
6.
Give
Radiola
an
operating
test before replacing
in
cabinet to determine
that
replacement has
been
properly
made.
7.
Return
chassis assembly to cabinet and replace all screws and control knobs.
(3)
REPLACING GANG
SOCKETS
The
sockets of Radiola
16
are of the gang variety, using
one
detector
socket, a
two
-
gang
A.
F.
socket
strip,
and
one
three -gang socket
strip
for the radio frequency
amplifier
tubes.
These sockets are riveted to the metal chassis. To replace these sockets drill out
the old
rivets and
use screws,
nuts and lock washers for securing the
new
sockets.
A
step
by
step procedure for making replacements
of this kind
is
as follows:
1.
Remove chassis assembly from cabinet as described in
Part II,
Sec.
1.
2.
Remove
and
tag
all leads to the terminals of
the sockets being
removed.
3.
Drill out rivets holding
sockets to metal chassis frame.
4.
The
socket assembly may
now be removed
and the
new
one
placed
in
the position
occupied by the old
one.
17
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