Sony TC-204SD - Section 2: Adjustments; Mechanical Adjustments

TC-204SD
SECTION 2
ADJUSTMENT
2-1.
MECHANICAL
ADJUSTMENTS
Head
Height
Adjustment
1.
Make
an
adjustment
cassette
as
shown
below.
ome
=
Cut out hatched
portions.
C-120
tape cassette
2.
Viewing
from
the
top,
tape
curl
and
tape
bends
should
not
exist
at
the
arrowed
portions.
—
Playback
Mode
—
teas
erase
head
pinch
roller
record/playback
head
3.
When
a
tape
curl
exists
at
the
record/playback
head,
adjust
the
head
height
by
using
adjustment
shim
or
washer.
record/play back
head
adjustment shim:
3-§13-237-01
t=0.1mm
1
3-513-237-1711
t=0.2mm
|
es)
2
—
adjustment shim or washer
4.
When
a
tape
curl
exists
at
the
erase
head,
adjust
the
head
height
by
adjusting
the
screw
at
the
tape
guide
side.
Fast
Forward
and
Rewind
Torque
Adjustment
Specification:
Fast
Forward
and
Rewind:
55—95
g-cm
(0.77—1.32
oz-inch)
If
necessary,
bend
the
spring
as
shown
below.
flywheel
spring
Back Tension Torque Adjustment
— Playback and PAUSE modes —
tape cassette
for adjustment
Wrap tape 10 turns.
oN
A( YS
/ ‘ /
Ke eee
,
\
Cut out here.
2.5~49-cm (0.03~0.06 oz: inch)
at 4.8cm/s (173 ips)
209 tension gauge
Unplug power cord and adjust spring hooking
position to obtain the specified value.
supply reel spindle.
adjust spring
hooking position.
tension lever