Allied Radio KNIGHT 96-499 Podręcznik - Strona 5
Przeglądaj online lub pobierz pdf Podręcznik dla Sprzęt nagrywający Allied Radio KNIGHT 96-499. Allied Radio KNIGHT 96-499 12 stron. Tape recorder
Drukuj stronęTo adjust the
motor
switch,
turn
the
mechanism
con-
trol
to
the
" Stop" position.
Loosen
the two
screws
(54A)
and
adjust the srvitch to
the
center
of the bake-
lite
pin on the
motor
swing plate
(51).
Continue to
move
the switch until there
is
approximately 1/16'r
gap
between
the contacts.
Tighten
the screws
(54A).
The Forward
Stop
Lug
-
(See
Figure 4) -
The
forward Stop lug
(52)
should
be
set
so
the
motor
swing
plate
assembly
(51)
comes
to
a
rest
position
against
it
as
soon as the
motor pulley
(5?) makes
firm
contact
with
the flywheel (40). Excessive
pressure
against the
flywheelwillprevent the
motorfrom start-
ing
when
the control lever
is
turned to the
"
Play-
Recordir
position. Insufficient pressure
will
result
in
slippage causing
rr
i!'owtt.
The
best
setting
is
to
adjust
the
forward
Stop
lug
(52)
l/16,, from
the
edge
of the
swing plate (51)
at the
point
when
the
drive
roller
begins
to
touch the
flywheel.
There
is
no
motor plate stop adjustment in the
ttRe-
wind"
position; however, the
rewind
drive pulley
(3?)
is
located
in
a
hanger
whose
position
is
adjusted
by
bending
the Stop lug
(3?A),
see Figure 3, against
the
swing plate pushing in
a
manner
that will
allow
a
clearance
between
the
drive roller
(5?)
and
the re-
wind
pulley
(3?)
in
the "Stop"
position. This
will
also allow
the
drive roller
to
engage the
drive
pulley
in the'rRewind"
position. In
this
position, the
re-
wind
drive pulley
hanger
lug
(3?A)
is
moved
away
from
the
stop.
The
rewind
drive
pulley
(3?)
is firmly
held
against
the
motor drive pulley
(5?)
by
the
torsion
spring
(39)
that
needs no adjustment.
Pressure Lever
and
Arm
Adjusting
Plate
-
Set
the pressure lever
(15), see
Figure 2,
so
that
it
is
perpendicular
to
the pressure arm
(29A) when the
control knobis in
the
Record-Playback
position. Also
adjust
the arm adjusting
plate (298)
so
it will
clear
the pressure arm
(29A) bV
l/64,, ,yhen
in
this
position.
Detent
Lever
(38)
-
(See
Exploded
View) -
The
roller
of the
detent
lever
(38)
should
be adjusted
so
that
it
will
engage
the detent
lever
(16)
at point
X,
as
shown
in the exploded view,
when
the controt is
in
the
" Off"
position.
Motor Transfer Lever
(41) -
'f
he motor transfer lever
(41)
shoul.d
be
adjusted
when the
control is in
the
t'Off,'
position. To
adjust
the
transfer
lever
(41)
loosen
its
set screws
and move
the
motor
plate
(51)
until the motor drive
pulley
(5?)
is
midway between
the rewind drive pulley
(37)
and
the
flywheel
(40), then
tighten the
scrervs.
Head
Fressure -
The
head
pressure
is
adjusted
by
means of
the
two
screws
(14A)
in the slotted holes in
the
head
bracket
(14).
See
Figure
2.
To
make
the adjustment,
turn
the
control
knob
(1)
to'rRecord-Playtr position.
Loosen
the
screws
(14A)
then
adjust
the
head
into the
tape
guide
block
{11)
until the
pressure
pads (11A) show
a
movement of
slightly
less than
l/32,,
on
the
reverse
side
of the tape
guide
(11).
-
Head
Alignment -
The
lateral
movement
of each head
is
done
by
moving
the
heads
in
the required direction by
means
of
the
screws in the slotted holes that hold the
heads
to
the
head
bracket
(14).
The
position should
be such
that
there
is
no
hanging up of the
tape
pressure
guide
when
the
control lever
is
turned to the
" Off"
position.
Make
sure after
the heads
are
adjusted
that they
are
parallel with
the tape as
it
is
pulled
past the
heads.
TROUBLES
Irregular Speed'rWowrt -
1.
Felt
pressure
pads
(11A)
in
tape guide
assembly
(1
1)
worn.
(a)
Replace
with
new
pads.
2.
Oilor
greaseon
drive roller
(5?),
flywheel assem-
bly
(40),
or
pressure
roller
(?).
(a)
Clean
with
alcohol.
3.
Head
pressure
too great
(see
adjustment
on
I'Head Pressurer').
Be
careful
not
to
disturbthe
head alignment.
4.
Check
pressure
roller lever
(1b)
to
see
if it
is
perpendicular to the pressure arm
(2gA).
When
in
the
" Record-Flay'' position.
See
Adjustments
on
'r
pre-
ssure Lever
and
Arm Adjusting plate".
5.
Drive roller
(5?)
or
pressure
roller
(?)
eccentric.
Allow mechanism to run
for
20
minutes.
ff
after this
time the
rollers
are
still
eccentric, replace with
new
rollers.
6.
Motor shaft
binding. Motor
shaft should
turn
free-
ly
when
the control
knob
is
in the
"
Off[
position. If
necessary,
realign bearings
by
tapping
motor lighily
with
a
wooden
mallet.
?. Detent
spring
(26)
not properly
connected.
See
Figure
2. If
spring (26)
is
not
connected,
the
detent
slide
(36)
will
not be
held
against
the
detent
lever
(38)
resulting in
the
motor drive pulley
(5?)
not being held
in
firm
contact
with
the capstan.
Motor
Runs
but Mechanism
Will
Not Operate
-
1.
Motor transfer
lever
(41)
not adjusted
properly.
See
Adjustments
on
"
Motor
Transfer
Lever",
and
"
The
Forward
Stop
Lug".
2.
Drive
roller
(57)
defective.
3.
Fast f'orward control
in
'r
Neutralt'
position.
(a)
Turn
contr.ol
to
tr
Normalr'
.
Mechanism Runs
Forward
But
Will
Not Rewind
-
t.
Checkdrive belt
(35)
for
treing
broken
or
loose.
Replace.
2.
Motor transfer lever
(41)
not
adjusted
properly.
See
adjustment
on
"
Motor Transfer Lever (41)"
.
Mechanism Rewinds But
WiIl
Not Run
Forward -
1.
Forward stop lug
(52)
out
of
adjustment.
See
Ad-
justment
on
rr
Forward
Stop
Lug".
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