Panasonic RF-B45 Service Manual

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 tha} 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)
Falricate
the
plug
as
;
;
10500
kHz
shown
in
Fig.
2
and
then
Adjust
for
maximum
connect
the
lead
wires
of
output.
the plug to the measuring
wnstrument.
Connect to
through 15 pF. 400 Hz, pore nee as sown
in Fig. en connect the
ial...(+)
30%
Mod.)
||
OFS.
2
ans
nen
conn
...(-) 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—

Panasonic RF-B45 Specifications

General

Brand	Panasonic
Model	RF-B45
Category	Receiver
Language	English