Read Sony CFD-930L / CFD-V34L / CFD-V37L Service Manual online
— 12 —
4-3.
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
Adjustment Location : MAIN board (Component side)
(See page 13)
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 ALIGNMENT
Adjust for a maximum reading on level meter.
T2
455 kHz
AM SECTION
FM SECTION
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
32k
Ω
set
+
–
level meter
J302 (phones)
FM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
10.7 MHz
MW/AM RECEPTION FREQUENCY COVERAGE CHECK
Frequency indication
520 kHz (516 kHz)
1,680 kHz
Adjustment
L4
CV1 (4/4)
MW/AM TRACKING ADJUSTMENT
Adjust for a maximum defection of level meter.
L3
CV1 (3/4)
620 kHz
1,400 kHz
LW TRACKING ADJUSTMENT
Adjust for a maximum defection of level meter.
L3
CT7
160 kHz
260 kHz
FM TRACKING ADJUSTMENT
Adjust for a maximum defection of level meter.
L1
CV1 (1/4)
87.0 MHz (87.35 MHz)
108.3 MHz (108.25 MHz)
< 68.0 MHz >
< 102 MHz >
LW RECEPTION FREQUENCY COVERAGE CHECK
Frequency indication 145 kHz (140 kHz) 300 kHz (293 kHz)
< 520 kHz >
< 1,680 kHz >
Adjustment
L11
CT8
FM RECEPTION FREQUENCY COVERAGE CHECK
Frequency
87.0 MHz
108.3 MHz (108.25 MHz)
indication
< 64.0 MHz >
< 109.5 MHz >
Adjustment
L2
CV1 (2/4)
( ): Italian model
( ): Italian model < >: East European model
( ): Italian model < >: East European model
( ): Italian model < >: East European model
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