Read Sony CFS-1055L Service Manual online
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TUNER SECTION
r
Switch location
FUNCTION switch
FUNCTION switch
• • • • • • • • • • • • • • • •
RADIO
GRAPHIC EQUALIZER
• • • • • • • • •
center click
BALANCE
• • • • • • • • • • • • • • • • • • • • • • • • •
center click
VOLUME
• • • • • • • • • • • • • • • • • • • • • • • • • • •
mechanical center
BASS BOOST
• • • • • • • • • • • • • • • • • • • • •
center click
MW/LW Section
Procedure :
Procedure :
BAND switch
: MW (LW)
FINE TUNING control : mechanical center
AM RF signal
generator
generator
30% amplitude modulation by 400Hz
signal.
Output level : as low as possible
signal.
Output level : as low as possible
Put the lead-wire
antenna close to
the set.
antenna close to
the set.
SW Section
Procedure :
Procedure :
BAND switch
: SW
FINE TUNING control : mechanical center
AM RF signal
generator
generator
telescopic
antenna
terminal
antenna
terminal
30% amplitude modulation by 400Hz
signal.
Output level : as low as possible
signal.
Output level : as low as possible
12PF
FM Section
Procedure :
Procedure :
BAND switch
: FM
FINE TUNEING control : mechanical center
FM RF signal
generator
generator
22.5kHz frequency deviation by
400Hz signal.
Output level : as low as possible
400Hz signal.
Output level : as low as possible
telescopic
antenna
terminal
antenna
terminal
0.01 F
µ
set
32
Ω
level meter
phone jack
+
–
r
Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally done
by the trimmer capacitors.
frequency coverage and tracking adjustments should be finally done
by the trimmer capacitors.
AM IF ALIGNMENT
Adjust for a maximum reading on level meter
T1
455kHz
MW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter
L8
520kHz
CT4
1,680kHz
MW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L3
600kHz
CT3
1,400kHz
LW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter
L4
145kHz
CT10
300kHz
LW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L9
160kHz
CT9
260kHz
SW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter
L6
5.8MHz
CT6
18.4MHz
SW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L5
5.8MHz
CT5
18.4MHz
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter
L21
87.0MHz
CT2
108.3MHz
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L1
87.0MHz
CT1
108.3MHz
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