Sony CFS-515S Service Manual page 9

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3 7 63 1515 0
TUNER SECTION
• Switch location
FUNCTION switch
PRESET MODE
• • • • • • • • • • • • • • • • • • • • •
GRAPHIC EQUALIZER
BALANCE
• • • • • • • • • • • • • • • • • • • • • • • • • • • • •
VOLUME
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
MEGA BASS
• • • • • • • • • • • • • • • • • • • • • • • • •
MW Section
Procedure :
BAND switch
FINE TUNING control : mechanical center
AM RF signal
generator
30% amplitude modulation by 400Hz
signal.
Output level : as low as possible
SW Section
Procedure :
BAND switch
FINE TUNING control : mechanical center
AM RF signal
generator
TE
L 13942296513
30% amplitude modulation
by 400Hz signal.
Output level : as low as possible
FM Section
Procedure :
BAND switch
FINE TUNING control : mechanical center
FM RF signal
generator
22.5kHz frequency deviation
by 400Hz signal.
Output level : as low as possible
set
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• Repeat the procedures in each adjustment several times, and the
.
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
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0dB=1 µV
RADIO
• • • • • • • • • • • • • • • • •
MANUAL
center click
• • • • • • • •
center click
MAX
mechanical center
: MW
Put the lead-wire
antenna close to
the set.
: SW1, SW2
12PF
: FM
0.01 µ F
level meter
32 Ω
phones jack
x ao
y
i
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8
Adjust for a maximum reading on level meter.
T1
MW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L4
CT4
Adjust for a maximum reading on level meter.
L3
CT3
SW1 FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L6
CT6
Adjust for a maximum reading on level meter.
L5
CT5
Q Q
3 6 7 1 3
SW2 FREQUENCY COVERAGE ADJUSTMENT
telescopic
Adjust for a maximum reading on level meter.
antenna
terminal
L8
CT8
Adjust for a maximum reading on level meter.
L7
CT7
Adjust for a maximum reading on level meter.
T2
telescopic
antenna
FM FREQUENCY COVERAGE ADJUSTMENT
terminal
Adjust for a maximum reading on level meter.
L2 <L21>
CT2
Adjust for a maximum reading on level meter.
L1
CT1
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Adjustment Location : Tuner board (page 10)
.
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2 9 9 4 2 8
no mark : COM
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AM IF ADJUSTMENT
455kHz
520kHz
1,680kHz
MW TRACKING ADJUSTMENT
600kHz
1,400kHz
2.2MHz
7.3MHz
SW1 TRACKING ADJUSTMENT
2.2MHz
7.3MHz
1 5 0 5 8 2 9 9 4
6.8MHz
22.5MHz
SW2 TRACKING ADJUSTMENT
6.8MHz
22.5MHz
FM IF ADJUSTMENT
10.7MHz
86.5MHz
109.5MHz
FM TRACKING ADJUSTMENT
86.5MHz
m
109.5MHz
co
9 9
< 516kHz >
< 1,630kHz >
2 8 9 9
< 87.35MHz >
< 107.8MHz >
< 87.35MHz >
< 107.8MHz >