FM IF/RF ALIGNEMNT
l
Set the signal generator to produce a signal of
400Hz,
30%,
FM modulated.
,
TEST FRE- DIAL
AD-
STEP BAND STA-
QUEN-
SET- JUST-
REMARKS
GE
CY
TING
MENT
IF
(As
shown in Figure
6-1,
make connection of instruments.)
Output
6
Repeat steps
2.3.4
and 5 until no further improvement
can be made.
i
FM STEREO
ALIGNEMNT
l
Set the Band Selector Switch
(SWI)
to “FM” position and
Function Switch
(SW102)
to “stereo” position.
l
As shown in Figures 6-3 and 6-4, make connection of
instrument.
FREQUENCY
DIAL
ADJUST-
POINTER
MENT
REMARKS
98MHz
(54d8)
un modulated
98MHz
VI31
Adjust for
38
i
0.15kHz
To
Telescopic Rod
Anrenna
Figure 6-4 FM DUMMY
VP1
I
10
7
MH*,
oscILLOSCOPE
“S”Cuwe
FM SWEEP
GENERATOR
ITPZI
lTP5l
Figure 6-l
ELECTRONlC
VOLTMETER
Figure 6-2
FM
STEREO
ITPl
)
SIGNAL
GENERATOR
Tele3COpbC
IC3 lTP61
FRERUENCY
Bee
Figure
641
LTPll
ITP71
DUMMY
Figure 6-3
q
T:,
Tm
/
Figure 6-5 ALIGNMENT POINTS
NOTES
ON
SCHEMATIC
DIAGRAM
1.
Resistor:
l
Unless otherwise specified all resistance in ohms,
K
=
1000
ohms
2. Capacitor:
* Unless otherwise specified all capacitance in microfarads,
P
=
Picofarads
4.
+
:
Printed resistor
5. Parts marked with ”
&,
”
(WJ)
are important for main-
taining the safety of the set.
Be sure to replace these parts
with specified ones for maintaining the safety and perform-
ante of the set.
l
(CH),
(RH):
Temperature compensation
3. Voltage reading are measured with Digital
Multimeter
under
no signal condition in tape position.
(
)
:
AM mode
:
FM mode
-6-
---.--.
--
*i
_--.
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