Sony CFD-G30L Service Manual page 10

TUNER SECTION
• Switch Location
VOLUME
MEGA BASS
PRESET SOUND MODE : OFF
MW/LW SECTION
BAND : MW/LW
Signal generator
MW/LW RF signal
generator
30% amplitude modulation by 400Hz
signal.
Output level : as low as possible
FM SECTION
BAND : FM
Signal generator
FM RF signal
generator
75kHz (100%) amplitude modulation
by 1kHz signal.
Output level : as low as possible
set
0 dB = 1 µV
: MAX
: OFF
Put the lead-wire
antenna close to
the set.
0.01µF telescopic
antenna
terminal
level meter
32Ω
+
–
J391 (phones)
• 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.
Adjust for a maximum reading on level meter.
T2
MW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3-1
CT3
LW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L4
LW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3-2
CT5
Adjust for a maximum reading on level meter.
T1
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L2
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1
CT1
[Adjustment Location : Main board] (Component side)
L4
LW FREQUENCY COVER.
Adjustment
CT5 L3-2 CT3
LW TRACKING MW TRACKING
Adjustment Adjustment
— 10 —
AM IF ADJUSTMENT
450 kHz
621 kHz
1,404 kHz
279 kHz
162 kHz
261 kHz
FM IF ADJUSTMENT
10.7 MHz
108 MHz
87.5 MHz
108 MHz
L2
FM FREQUENCY COVER.
Adjustment
L3-1 CT1 L1
FM TRACKING
Adjustment
T2
AM IF
Adjustment
T1
FM IF
Adjustment