Read Sony CFT-22 Service Manual online
– 8 –
TUNER SECTION
AM Section
BAND switch
: AM
Volume
: MIN
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.
FM Section
BAND switch
: FM
Volume
: MIN
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
µ
F
set
32
Ω
level meter
earphone 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.
by the trimmer capacitors.
no mark : AEP, E, UK model
( ) : Italian model
[ ] : Saudi Arabia model
( ) : Italian model
[ ] : Saudi Arabia model
AM IF ALIGNMENT
Adjust for a maximum reading on level meter.
T1
455kHz
(455kHz)
[455kHz]
AM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L4
520kHz
(516kHz)
[520kHz]
CT4
1,680kHz
(1,630kHz)
[1,680kHz]
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3
620kHz
(620kHz)
[620kHz]
CT3
1,400kHz
(1,400kHz)
[1,400kHz]
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L2
87.0MHz
(87.35MHz)
[87.35MHz]
CT2
108.3MHz
(108.25MHz)
[107.8MHz]
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1
87.0MHz
(87.35MHz)
[87.35MHz]
CT1
108.3MHz
(108.25MHz)
[107.8MHz]
Adjustment Location : Main board
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