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OT-95H(BK)
FM IF/RF
ADJUSTMENT
SWITCH
Power:
POSITION
Band
Selector:
Volume
Function
Mode
Selector:
SIGNAL
400 Hz, 30%, FM modulated.
GENERATOR
TEST
FRE_
STEP
STAGE
QUENCY
1
10.7
MHz
2
Detectio
3
Repeat steps I and 2 until no further
be made.
4
87.3
MHz
Band
coverage
5
108.3
MH
6
88
MHz
Tracking
7
108
MHz
8
Repeat steps 4, 5 and 6, 7 until
be made.
VCO
FREQUENCY
ADJUSTMENT
400
SIGNAL
(mono signal)
GENERATOR
FREQUENCY
FM mono position
98 MHz
at 60 dB
98 MHz
t IgsJ
MAIN
Figure 24—7
On
FM
Control:
Maximum
Selector:
Radio
Stereo
DIAL
AD-
INTER
JUST-
REMARKS
SETTING
MENT
I. using a minus
driver, turn
the
T 2 counter-
clockwise
before taking
H igh
it out
frequency
bobbin.
2. Adjust for
best
curve.
T2
Adjust for best
S
curve.
improvement
Lowest
L3
frequency
Adjust for
maximal
Highest
TC2
output.
frequency
88 MHz
1-2
108
MHz
TCI
no further
improvement
Hz, 30%,
FM modulated
DIAL
AD-
REMARKS
POINTER
JUST.
SETTING
MENT
FM stereo position
(unmodulated)
VRI
Adjust for 38.00 kHz
± 100 kHz.
9
PWB
ADJUSTMENT
POINTS
10.7
MHz
FM sweep
Generator
0.01 pF
core
of
of the
10.7 MHz
"IF"
Figure 24—2
can
FM Signal
Generator
Dummy
(See Figure 24—6)
can
FM Singal
Generator
Dummy
(See Figure 24—6)
IC3
O Pin
ICl
Pin
unit
GND
Figure 24—1
FM
IF
Figure 24—3 S CURVE
IF CURVE
Rod
Antenna
unit
/
GND
Figure 24—4 FM RF
Rod
Antenna
unit
GND
300
Figure 24—5 VCO FREQUENCY
To
Rod
To Chassis GND
RI
= 37.5
ohms
Z = 75 ohms
R2 = 75 Ohms
RI
= 50 ohms
Z = 50ohms <
R2 = 50 ohms
Z:
Output
impedance of signal generator
Figure 24—6 FM DUMMY
Oscilloscope
VH
GND
10.7
MHz
Electronic
Voltmeter
IC3
Pin
O
GND
IC3
@Pin
F requency
1000 pF
Counter
kohms
Antenna
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