Sony WM-FX141 - Page 7

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[AM]
BAND: AM
Signal generator
[FM]
BAND : FM
Signal generator
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1 620kHz(800kHz)
CT1 1,400kHz(1,300kHz)
TUNER SECTION
Put the lead-wire
antenna close to
the set.
30% amplitude modulation by 400Hz
signal.
Output level : as low as possible
AM RF signal
generator
0.01 µ F
FM RF signal
generator
antenna termina
l
75kHz(100%) amplitude modulation
by 1kHz signal.
Output level: as low as possible
16 Ω
set
level mete
r
J302 (phones)
AM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L4 505kHz(516.5kHz)
CT4 1,750kHz(1,631.5kHz)
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1 455kHz
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L2 86.0MHz[64MHz]
CT2 109.5MHz
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L3 86.0MHz[64MHz]
CT3 109.5MHz
( ) :E, Mexican, East European, AEP
[ ] : East European
Adjustment Location: Main board (See page 8)
0 dB = 1 µV
• Repeat the procedures in each adjustment several times for the
maximum level meter indication.
• The frequency coverage and tracking adjustments should be
finally done by the trimmer capacitors.