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KT-S1
4. ALIGNMENT
INSTRUCTIONS
TIO!
Z20!
Figure
13.
FM-IF
ALIGNMENT
1. Turn on both sweep generator and oscilloscope, and allow a fifteen-minute warm-up
period.
2. Connect the RF SWEEP SIGNAL
OUTPUT from the signal generator through the loop antenna to the receiver.
3. Connect the oscilloscope vertical input directly to the test point
Lor R
and connect the shielded lead to the
test point Earth.
4. Connect the SWEEP VOLTAGE
OUTPUT
of the sweep generator to the oscilloscope.
5. Proceed as outlined in the FM-IF ALIGNMENT CHART.
FM-IF ALIGNMENT
CHART
Signal coupling
Equip.
Tuning
Connection
;
Pattern
Turn the coil T102 fully
counterclockwise to obtain
a single peak. Fig. 16
Connect sweep
Sweep
Tuning Knob | Set scope for con-
generator output to
generator of | fully counter-|
necting output
a three-turn loop
10.7 MHz
clockwise
signal from TUN
antenna of 10cm
center freq.
| (Highest
OUT to vertical
Adjust coil T101 in order
diameter.
with 10.7
Frequency.) | axis of scope "V"
until the best single peak
MHz marker.
and sweep gener-
is obtained.
ator output to
Finally turn the coi! T102
horizontal axis
to obtain S curve. Fig. 17
do hae
1F Sweep Test
Receiver
FM Swee
:
under test
Generator
SWEEP
VOLTAGE
OUTPUT
.
3-turn Loop Antenna
located near the L001
Figure
14.
ay
KT-S1
Supply
Figure 16.
Figure 17.
FM-RF ALIGNMENT
piguiesl a:
. Turn on the signal generator and the VTVM,and
allow a fifteen-minute warm-up period.
Connect the signal generator output through a 75 ohm dummy antenna across FM ANT.
FwWn
=
signal output level to provide a measurable indication.
5. Proceed as outlined in the FM-RF
ALIGNMENT
CHART.
FM-RF
ALIGNMENT
CHART
Signal Generator
Radio Dia! Setting
Adjustment
Remarks
87.5 MHz
Tuning Knob fully
OCS. Coil
Counterclockwise
(Lowest Frequency)
Eee
108 MHz
Tuning Knob fully
seam
Clockwise
;
,
(Highest Frequency)
Repeat steps 1 and 2 as required.
Adjust for maximum
output indication
Adjust for maximum
C004
output indication
90MHz
RF
Coil
Repeat steps 4 and 5 as required.
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 regulations in West Germany.
75 ohm dummy antenna
FREE
RUN
FREQUENCY
ALIGNMENT
Playback Head
Adjust R204 under no signal condition so as to obtain 76 kHz + 150 Hz.
\
A 6.3 kHz standard tape must be used for this adjustment.
Connect
a VTVM
or an oscilloscope to the EXT Speaker
jack and adjust the azimuth by using a phillips screwdriver
to maintain the maximum
output voltage.
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