Read Sony CFD-G30 / CFD-G50 Service Manual online
— 10 —
TUNER SECTION
•
Switch Location
VOLUME
: MAX
MEGA BASS
: OFF
PRESET SOUND MODE : OFF
BAND : AM
Signal generator
Signal generator
BAND : FM
Signal generator
Signal generator
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.
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T2
455 kHz
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3
620 kHz
CT3
1,400 kHz
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1
86.5 MHz
CT1
109.5 MHz
AM SECTION
FM SECTION
AM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L4
520 kHz
FM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
10.7 MHz
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L2
86.5 MHz
[Adjustment Location : Main board] (Component side)
Put the lead-wire
antenna close to
the set.
antenna close to
the set.
30% amplitude modulation by 400Hz
signal.
Output level : as low as possible
signal.
Output level : as low as possible
AM RF signal
generator
generator
0.01
µ
F
FM RF signal
generator
generator
telescopic
antenna
terminal
antenna
terminal
75kHz (100%) amplitude modulation
by 1kHz signal.
Output level : as low as possible
by 1kHz signal.
Output level : as low as possible
32
Ω
set
+
–
level meter
J391 (phones)
L4
AM F-COVER.
Adjustment
AM F-COVER.
Adjustment
L2
FM F-COVER.
Adjustment
FM F-COVER.
Adjustment
CT3
L3
AM TRACKING
Adjustment
Adjustment
FM TRACKING
Adjustment
Adjustment
CT1
L1
T1
FM IF
Adjustment
FM IF
Adjustment
T2
AM IF
Adjustment
AM IF
Adjustment
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