Sony WALKMAN WM-F702 User Manual

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WM-702,/F702
SECTION 3
ADJUSTMENTS
3-1, MECHANICAL ADJUSTMENTS
PRECAUTION
1,
Clean
the
following
parts
with
a
denaturedalcohol-
moistened
swab:
playback’ head rubber belts
capstan idlers
pinch roller
2,
Demagnetize
the
playback
head
with
a
head
demagnetizer,
8,
Do
not
use
a
magnetized
screwdriver
for
the
adjustments,
4,
After
the
adjustments,
apply
suitable
locking
compound
to the parts adjusted.
The
adjustments
should
be
performed
with
the
rated
power
supply
voltage
(1.3V)
unless
otherwise
noted,
ol
Torque Measurement
Torque Meter
CQ-102C
Meter Reading
22~—38g-cm
0.31—0.52 oz + inch
FWD Back
Tension
1,0-3.0g + cm
0.02—0.04 oz: inch
22-38g+cm
0.31-0,52 oz + inch
CQ-102RB
REV Back
Tension
1,0-3.0g + cm
0,02—0.04 oz: inch
more than 50g -cm
more than 0.7 02+ inch
CQ:201B
more than 50g-cm
more than 0.7 oz: inch
Tape Pulling Force Measurement
Meter Reading
more than 50g
more than 1.77 oz
more than 50g
more than 1,77 oz
32, ELECTRICAL ADJUSTMENTS
PRECAUTION
1, Power supply voltage : 1,3V
2. Switch position
FM MODE switch :ST
DOLBY switch : OFF
DBB switch: OFF
3.
For
electrical
adjustments,
use
the
supplied
plug
coversion
adaptor (Parts No, 1-563-133-11),
Cassette Section
TEST TAPE
WS-48A
3kHz,
0dB
Tape
Speed
Adjustment
P-4-4100
10kHz,
~10dB
Playback
Head
Azimuth
check
P-4-A063
6.3kHz,
~10dB
P-4-L300
315Hz,
0dB
Playback
Level
Adjustment
Playback Head Azimuth Check
Note:
This
set
is
not
featured
the
head
azimuth
adjustment,
When
replacing
the
head,
check
the
both
L-ch
and
R-ch
output
levels
and
also
those
phases,
Procedure :
1, Playback mode,
test tape
P-4-A100 VTVM
(10kHz, —10dB)
Plug conversion adaptor
1)
Playback
the
P-4-Al00
in
FWD
mode
and
read
the
VTVM
(both
L-ch
and
R-ch),
2)
Change
to
REW
mode
and
read
the
VTVM
(both
L-ch
and
R-ch),
3)
Confirm
that
the
level
difference
between
step
1
and
2
is
within
SdB
(both
L-ch
and
R-ch),

Sony WALKMAN WM-F702 Specifications

General

Brand	Sony
Model	WALKMAN WM-F702
Category	Cassette Player
Language	English