Telectro 1975 - Cleaning and Lubrication; Mechanical Adjustments; Play-Record Head Adjustment; Erase Head Adjustment

F
[G
.
2 BOTTOM
V IEW OF
MECHAN
I SM
Disconnect
microphone input.
Disconnect sound lever
indicator.
Disconnect
motor leads.
CLEAN
ING
Capstan
roller
assembly
(29),
capstan
shaft,
and recording
head
(40)
may
accumulate
tape oxide
coating, which
wearsoff tape as
itpasses
these
parts.
This
accumulation will
cause
poor per{ormance
and
should
be
removed
with a soft
cloth
dipped in
alcohol.
7.
Remove three mounting
bolts
holding amplifier
to
tape transport.
LUBRICATTON
Ali
moving
parts
have self-lubricated oilite
bearings;
therefore,
in
normal use no
lubrication is
necessary.
When unit is
disassembled,
clean all
bearings
with a clean, soft
cloth
and
apply a
thin
film
of oil on bearing
sur{aees.
4.
5.
6.
MECHAN
I
CAL
ADJU
STMENTS
Play-Record
Head
The
recording
head
(40)
must
be aligned
with
the
tape.
If
it is
not,
low
output,
loss
of high frequencies,
or
track
overlap
may
result.
CAUTI0N: The
play-record
head was
adjusted
andsealed
inplace
at the
factory. Further
adjustment
is
unnecessary unless head be-
comes
f
aulty and
needs
replacing.
The
two
adjustments are made as
f
ollows:
1. Head
height
should
be adjusted
so that top edge
of tape aligns evenly with top edge of
record
head
lamination.
To
adjust,
loosen nuts
(38)
Page
4
and slightly raise
or
Iower recording
head
(40).
2.
To
adjust headf
or maximumf requency response,
head
adjustment screw
(34)
should
be turned to
the
left
or
right.
This
moves
the
head from
side to side slightiy
until maximum high f
requen-
cies
are obtained.
After adjustment,
head height
should
be checked.
Erase
Head
Erase
head
assembty
(45)
shouid
be
adjusted
so
that the
erase magnet affects
the top
haif
of
recorded
tape.
This adjustment should
be
made
in
the
Record
position.
Loosen
erase
head adjusting screw
(aa)
in