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eFM AUTO STOP ALIGNMENT
SIGNAL GENERATOR
CONNECTIONS
| FREQUENCY
Wad...(+)
FM
m)
RF-B45
RF-B45
@AM AUTO STOP CHECK
FREQUENCY
DISPLAY
SETTING
DIGITAL
VOLTMETER
ADJUSTMENT
REMARKS
Adjust T10 for O+10 mV
( _
Tio
reading on digital
i.
voltmeter.
106 MHz
CONNECTIONS
FREQUENCY
90 MHz
ial..(+)
( 400 Hz, )
i...(-)
30% Mod.
12. dB or less
106 MHz
fiI...(+)
( 400 Hz, )
3
30% Mod.
12 dB or less
FM STOP FREQUENCY ALIGNMENT
SIGNAL GENERATOR
CONNECTIONS
FREQUENCY
105.95 MHz
400 Hz,
ce hoa)
60 dB
107 MHz
e@FM RF ALIGNMENT
SIGNAL GENERATOR
FREQUENCY
DIGITAL
BAND
DISPLAY
VOLTMETER or
ADJUSTMENT
REMARKS
400 Hz,
30% Mod.
26 dB
@AM 2nd IF ALIGNMENT
IF SWEEP GENERATOR
CONNECTIONS
FREQUENCY
Connect to {7235}
through 1 pF.
Gae...(+)
G.(-)
@AM 1st IF ALIGNMENT
SIGNAL GENERATOR
BAND
CONNECTIONS
FREQUENCY
Connect to
459 kHz
( 400 Hz, )
30% Mod.
55.845 MHz
Gat)
| (som )
.(-)
30% Mod.
tense
SETTING
OSCILLOSCOPE
Earphone Jack (8Q)
Fabricate
the plug as
shown in Fig. 2 and then
connect
the lead wires of
the plug to the measunng
instrument,
e@Adjust for maximum
L15
output.
Earphone Jack (8)
set in a Lab
@ Adjust for maximum
connact the lead wires of
output.
the plug to the measuring
instrument.
FREQUENCY
DISPLAY
OSCILLOSCOPE
SETTING
REMARKS
ADJUSTMENT
Adjust VR4 for
maximum output.
OUTPUT
REMARKS
Earphone Jack (8Q)
'
:
:
Febricate
the plug as shown || '- Press the Auto Tuning Switch (S203) to start the auto tuning.
in Fig. 2 and then connect t h a }
2. Assure that the auto tuning is stopped at 107 MHz and a signal
lead wires of the plug to the
is received.
:
FREQUENCY
IF MONITOR
DISPLAY
SCOPE or
SETTING
OSCILLOSCOPE
ADJUSTMENT
REMARKS
Point of non-
interference.
(+)
®Adjust for maximum
..(-):
T6 and T11
output.
603 kHz
FREQUENCY
DISPLAY
OSCILLOSCOPE
ADJUSTMENT
SETTING
Earphone Jack (80)
the plug to the measuring
wnstrument.
Connect to
through 15 pF.
400 Hz,
pore nee as sown
in Fig.
en connect the
...(-)
26 0B
measunng instrument.
410600 kHz
Earphone Jack (8Q)
REMARKS
7
1. Press the Auto Tuning Switch (S203) to start the auto tuning.
2. Assure that the auto tuning is stopped at 10600 kHz and a
i
signal is received.
|
———_——
Connect to Gia
through 15 pF.
400 Hz,
itbocok Aa rece
Rotate the fine tuning control to assure that the best sound is
1
in Fig,
jen connect
a...(+)
30% Mod.
head tatocol ookin bs
output.
...(-)
26 6B
measuring instrument.
@ ALIGNMENT POINT
Refer to Circuit Board and Wiring Connection Diagram for test point locations.
OUTPUT
10600 kHz
Earphone Jack (8Q)
REMARKS
AM
2m iF
FM AUTO
FM VCO
AM(SWIVCO
FM STOP
459k Hz
STOP
9.00+0.IV 9.00 +0.1V
FREQUENCY
AM 2nd OSC
AM 2nd iF
AM Ist IF
SS.386MHz+IO0OHz
459 kHz
55.845MHz
To Earphone Jack
R=8Q — To Measuring
Instrument
Fig. 2
OC
IN 6V
LOCAL
'| SENS
OX
1) EXT
ANT
FM RF
FM RF
106.00MHz
90.00MHz
Fig. 1
Fig. 3
—18—
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