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7.2 FM STEREO SEPARATION ALIGNMENT PROCEDURE
(BAND switch in "FM" and MODE switch in "STEREO".)
Connect Signal
Generator to:
Set Signal
Frequency to:
Set Tuning
Dial to:
Indicator
Connection
CRS-2204
Procedure
TP-1 (5101).
L channel
R channel
Frequency counter
to TP-7 (J123).
Adjust semifixed resistor
so that frequency coun-
ter reading in 19 kHz is
mechanical center.
VTVM
to EXT SP
42 Jack.
Adjust semifixed resistor
for min. output in R
channel.
Adjust semifixed resistor
for min. output in L
channel.
7.3 MW ALIGNMENT PROCEDURE
Repeat Steps 2 and 3.
(BAND switch in "MW" and FUNCTION switch in '""RADIO/AUX".)
Connect Signal
Generator to:
Set Signal
Frequency to:
Set Tuning
Dial to:
TP-8 (J104).
455 kHz with
+35 kHz sweep.
Indirect coupling
near set
antenna coil.
515 kHz with
modulation.
1650 kHz with
modulation.
"515 kHz (max.
capacitance).
1650 kHz (min.
capacitance).
Indicator
Connection
Oscilloscope vertical
connector to TP-9
thru diode.
L231 and
L232.
Procedure
Adjust inductors for
highest and symmetric
curve.
VTVM across EXT SP}
4Q.
L135 (OSC
coil).
CT-3 (trim-
mer).
Adjust for max. output.
Repeat Steps 2 and 3.
Indirect coupling
near set
antenna coil.
600 kHz with
modulation.
600 kHz.
1400 kHz with
modulation.
1400 kHz.
VTVM across EXT SP
4Q.
L131-1
(an-
tenna coil).
CT-4 (trim-
mer).
Adjust for max. output.
NOTE:
In adjustment, connect the signal generator grounding terminal (—) to that of the set.
1.
2. Modulate the signal generator to 30% with a 400 Hz signal.
3.
4. Set the VOLUME control for the maximum level.
Reduce the signal generator as low as possible.
Repeat Steps 5 and 6.
42
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