Sony CFD-444L - SECTION 3 ADJUSTMENTS; 3-1. MECHANICAL ADJUSTMENTS

cFD-444L
SECTION
3
ADJUSTMENTS
3-1.
MECHANICAL
ADJUSTMENTS
PRECAUTION
t. Clean
the
following
Parts
alcohol-moistened
swab:
record
/plaYback
head
erase
head
caPstan
2.
Dema.gnetize
the
record/playback
head
with a
head demagnetizer.
(Do
not bring
the
head
de-
magnetizer
close to the
erase
head
)
3.
Do
not
use a
magnetized
screwdriver
for
the
adjustments.
4. After
the
adjustments,
apply
suitable
locking
com-
pound
to the
Parts
adjusted.
Torque
Measurement
with a
denatured-
pinch
roller
rubber
belts
idlers
Tape
Path
Adiustment
When the
mode is
playback
(FWD,
REV),
run a
mi.rror
cassette,
then turn
adjustment
screw to
eliminate
tape
curl and
tape twist
at tape
guide
on
erase head
and record/playback
head.
Adjust
the
height by
using
head shim
if needed.
Standard
t
=
0.1
Part Cods
t
3-5
78-138-01
0.1
3-578-138-1
I
0.2
3-5 78-1
38-21
0.3
adjustment
shim
Torque
Torqug
metal
Meter
reading
FWD
cQ-102C
25 to 55
g'cm
(0.35
to 0.?6
oz'inch)
FWD
Back
Tension
CQ{ O2C
2.5
to 5.5
g'cm
(0.04
to
0.07
oz'inch)
REV
cQ-102R8
25 to 55
g'cm
(0.35
to 0.76
oz'inch)
REV
Back
Tension
cQl02RB
2.2 to 5.5
g.cm
(0.04
to 0.07
oz'inch)
FF
cQ-2018
100
to 180
g'cm
(1.39
to
2.5 oz
inch)
REW
cQ-201B
95
to 145
g
cm
(1.33
to
2.01
oz'inch)
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