Panasonic RX-FS50 - SW2, FM-IF, FM-RF Alignment Procedures; Cassette Deck and Tape Speed Alignment

RX-FS50 |
e $W2 - RF ALIGNMENT
Signal Generator or Indicator Ai
Sweep Generator Radio Dial : justment
Setting (Electronic Voltmeter (Show in Fig.1) Remarks
Connections Frequency or Oscilloscope)
Headphones Jack(32Q)
Tuning capacitor Fabricate the plug. as shown in
Fig.2 and then connect the L100 Adjust for maximum output.
Connect to test point fully closed. lead wires of the plug to the||__ (SW2 OSC. Coil)
ihrough measuring instrument.
6.84 MHz
ceramic capacitor ae aah uciee OT7
uni i ;
(i OpF). 22.80 MHz fully pean (SW2 OSC. Trimmer) Adjust for maximum output.
Negative side to test
point
7.0 MHz Tune to signal L7 Adjust for maximum output.
(SW2 ANT. Coil)
e FM - (F ALIGNMENT
Connect to test
point BAEEEg through Point of noninter- | scope to test point ARSE - TH Waveform is shown in Fig.3.
ceramic
capacitor.
ference.
Negative
side
to
test
(FM
ist
IFT)
Negative
side
to
test
(on/about
90MHz)
3.
Connect vert amp. of
(FM Ae IFT) - Waveiorm is shown in Fig.4.
° FM - RP ALIGNMENT
Headphones Jack(3222)
Variable Fabricate the plug as shown in é :
86.2 MHz : le Adjust for maximum output.
Connect to test point 87.36 Mrz | Capacitor ‘fully. | |Fig.2 and then connect ihe)! «(ew O80. Coil} [*2)
sia closed. lead wires of the plug to the
through FM +50 kHz measuring instrument.
dummy antenna.
Negative side to test
109.2
MHz
|
Variable
VC-1
108.3
MHz
|
capacitor
fully
(FM
OSC.
VC1)
+70
kHz
|
opened.
Tune
to
signal
(=M
ener
Adjust
for
maximum
output.
[°2] Three output responses will be present; proper tuning is the center frequency.
[ Cassette Deck Section |
e ALIGNMENT INSTRUCTIONS
READ CAREFULLY BEFORE ATTEMPTING ALIGNMENT
Measuring Instruments Measuring Conditions
® Digital frequency counter e Make sure the heads are clean.
@ Make sure the capstan and pressure rollers are clean.
Test Tape
® Tape speed adjusiment (2 kHz, -10 dB); QZZCWAT
Note: No Azimuth Head Alignment is required due io Aztec Head
is used in the cassette mechanism.
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