Read Sony ICF-S10MK2 (serv.man2) Service Manual online
6
ICF-S10MK2
SECTION 4
ELECTRICAL ADJUSTMENTS
0 dB=1
µ
V
[AM]
Setting:
BAND switch : AM
BAND switch : AM
[FM]
Setting:
BAND switch : FM
BAND switch : FM
• Repeat the procedures in each adjustment several times for a
maximum reading on level meter, and the frequency coverage
and tracking adjustment should be finally done by the trimmer
capacitors.
and tracking adjustment should be finally done by the trimmer
capacitors.
Adjustment Location:
AM RF signal
generator
30% amplitude
modulation by
400 Hz signal
Output level: as low as possible
modulation by
400 Hz signal
Output level: as low as possible
Put the lead-wire
antenna close to
the set.
antenna close to
the set.
+
–
–
level meter
set
16
Ω
v
jack (J1)
FM RF signal
generator
22.5 kHz frequency
deviation by 400 Hz
signal
Output level: as low as possible
deviation by 400 Hz
signal
Output level: as low as possible
+
–
–
level meter
v
jack (J1)
set
16
Ω
0.01
µ
F
TP (FM ANT)
– MAIN BOARD (Component Side) –
CT1
}
AM Tracking
L1
Adjustment
T1
AM IF
Adjustment
L3
}
FM Tracking
CT2
Adjustment
CT4
}
AM Frequency Coverage
L4
Adjustment
L2
}
FM Frequency Coverage
CT3
Adjustment
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter
T1
455 kHz
AM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter
L4
520 kHz
CT4
1,650 kHz
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L1
620 kHz
CT1
1,400 kHz
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter
L2
86.5 MHz
CT3
109.5 MHz
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L3
87.5 MHz
CT2
108 MHz
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