Advertisement
iT—S652
|
5, Adjust the signal generator frequency as indicated in FM-RF ALIGNMENT
CHART, and maintain a sufficient signal
output level to provide a measurable indication.
6. Proceed as outlined in the FM-RF ALIGNMENT
CHART.
FM-RF ALIGNMENT
CHART
Step
Signal Generator
Radio Dial Setting
Adjustment
Remarks
Tuning Knob fully
P
:
,
1
87.5 MHz
Counterclockwise
O2G fol!
AaeE IO eal
a
ae
indication.
(Lowest Frequency)
Tuning
K
full
ee
nob
sully
OSC. Trim.
Adjust for maximum output
2
108 MHz
Clockwise
C003
indicate
(Highest Frequency)
pee
3
Repeat steps 1 and 2 as required.
4
90 MHz
Ant. Coil
_
LOO1
Adjust for maximum output
Tune to signal
RAGE
indication
nt.
Trim
.
5
106
MHz
;
e
C001
6
Repeat steps 4 and 5 as required.
Headphone
SET
Jack
DUMMY
ANTENNA
50 ohm
FREE
RUN
FREQUENCY
ALIGNMENT
Adjust R203 under
no signal condition
so as to obtain
38 kHz + 75 Hz.
CAUTION:
When
realigning the FM
Receiving Frequency, the highest
end of the frequency
range should not be more than 108
MHz and the lowest end of the frequency range should not
be less than 87.5 MHz, in order to comply with FTZ regula-
tions in West Germany.
RECORD/PLAYBACK
HEAD
ADJUSTMENT
A 6.3 kHz test tape must be used for this adjustment.
Connect
a VTVM
or an oscilloscope to the headphones
jack or speaker terminal and adjust the azimuth by using a
phillips
screwdriver
to
maintain
the
maximum
output
voltage.
TAKE-UP/SUPPLY
REEL TENSION
1. Insert cassette torque meter (HARTAK X-87 Torquette).
Figure
11.
Frequency
V.T.V.M.
Counter
3.2
ohm
Figure
12.
Record/Playback Head
Record/Playback Head Adjustment
Figure
13.
2. Press PLAY button and read torque meter. Torque should be 35 to 65 gcm.
3. Release PLAY
button
and press REWIND
button. Torque should
be 60 to 160 gcm. !f necessary, clean take-up
reel or drive belt with alcohol, or replace belt.
Advertisement
