Sanyo M-W2K Service Manual

ALIGNMENT PROCEDURES
SW2 ALIGNMENT
S Al ee Be puntiig: Dit Adjustment Remarks
tep
ignment
:
INPUT OUTPUT Generation Setting
Js A
: 400 H
1
Calibration
Connect
signal
Connect
VTVM
with
&
OME.
Koweet
ead
L7
Obtain
sine-wave
of
400
Hz
of generator to 4 ohm dummy load 4 and maximum amplitude.
i . : ; High
2 {Tuning Range | antenna terminai(J1) | and oscilloscope to 23.2 MHz ighestend CT 4(PVC) |
j ; k
3 Adjustment | through dummy Ext speaker 7 MHz 7 MHz L10 Max
of antenna. terminal. 2224
4 Tracking 21 MHz 21 MHz —
—
5 Repeat the above adjustments.
HEAD AZIMUTH ADJUSTMENT
1. Load test tape MTT-114 in the cassette case. Tt
2. Connect a VTVM to the LEFT EXT SP jack, and another VTVM to
the RIGHT EXT SP jack.
3. Place the FUNCTION SELECT switch in the TAPE MODE and
playback.
VTVM (MAX.)
2:
4. Adjust the head azimuth adjusting screw for maximum playback
output on the VTVM's.
MECHANICAL ADJUSTMENT
Can not be done.
3.
4,
Frequency counter
3kHz + 15Hz
4 ohm (2W)
Dummy load
=
see
TAPE SPEED ADJUSTMENT
Load test tape MTT-111 which has been recorded with a 3,000
Hz test signal
Connect the frequency counter to the LEFT EXT SP jack in
parallel with the VTVM
SPEAKERS
R L
Place the tape deck in the play made.
Adjust the trim pot tn the motor for 2,985 Hz to 3,015 Hz reading
on the frequency counter.
eo a ETE |
Hh MEASUREMENT METHOD REMARKS
Hook the spring gauge to pinch roller metal and pull! it away
Pinch
roller
300-500
from
the
capstan.
See
Playback
adjustment
gr
Measure
the
pressure
the
moment
the
pinch
roller
comes
in
figure
1
contact with the capstan and the pinch roller starts rotating.
Mount the cassette torque meter in the same way as the
Take-up torque 4070
. Playback cassette tape. _
adjustment g.cm
The take-up torque is shown on the torque meter.
Fast-forward
and
fa
FF
Mount
the
cassette
torque
meter
in
the
same
way
as
the
|
rewinding torque or 55150 cassette tape. _
; adjustment rewind gcM | The F.Forward and rewind torque is shown on the torque mete:
Wow and flutter p of p
’ | a
JIS weighted ayback 0.1% lay back 3kHz (tset) tape and read with the wow meter.
Pinch roller
— Spring gauge
Fig-14

Sanyo M-W2K Specifications

General

Brand	Sanyo
Model	M-W2K
Category	Cassette Player
Language	English