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QT-70H(R)
FM IF/RF ADJUSTMENT
SWITCH
FM mono
POSITIO
400 Hz, 30%,FM modulated
RATOR
TEST
FRE-
STEP
STAGE
QUENCY POINTER JUST.
10.7 MHz
2
Detec-
tion
3
Repe
at
s
step
1and 2until n ofurther improvemen
be
4
87.3
Band
MHz
coverage
5
108.3
MHz
6
88 MHz
Tracking
7
108MHz 108MHz TCI
8
Repe
at
s 4,5and 6 ,7until no further improvemen
step
be made.
O
VC
Y
FREQUENC
ADJUSTMENT
SIGNAL
400 Hz, 3
ENERATOR monosi nali
DIAL
CY
FREQUEN
POINTERADJUST-
SETTING
FM mono position
FM stereo position
(unmodulated)
98 MHz at
98 MHz
VRI
54 dB
DIAL
REMARKS
SETTING
MENT
I. Using a minu
driver, turn
the core of
T2 counter-
clockwise
High
Tl
before taking
frequency
it out of the
bobbin.
2. Adjust for
best "IF"
curve.
T2
Adjust for best
S curve.
t
can
Lowest
L3
frequency
Highest
TC2
frequency
Adjust for
maximal
88 MHz
output.
t
F
m
ulat
REMARKS
MENT
Adjust for
38.00 kHz ± 100 Hz.
10.7 MHz
FM SweepGenerator
o
Figure
12—2 FM "IF"CURVE Figure
FM Signal
(See Figure 12—6) Telescopic
Generator
Dumrny
o
can
FM Signal
Generator
Antenna
o
GND
(SeeFiwre 12—6)
Figure12—5FM STEREO
Z: Output i mpedance Ofsignal generator
Figure12—6FM DUMMY
ICl
pin
IC3
pin
0.01
unit
GND
GND
Figure 12—1
FM
IF
12—3 FM "S"
Rod
Antenna
Jack
unit
GND
GND
10 kohm
Figure12—4FM RF
IC3
pin
1000 pF
unit
GND
330 kohms
TO
Rod Antenna
Z • 7S
37.5 ohms
R2
7S Ohms
Z • 50
SOohms
R2
50 Ohms
To ChassisGND
'losope
CURVE
o
Frequ ency
Counter
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