Read Sony ICF-B01 (serv.man2) Service Manual online
12
ICF-B01
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
done by the trimmer capacitors.
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter
L3
86.5 MHz
CT1-2
109.5 MHz
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L2
86.5 MHz
CT1-1
109.5 MHz
SECTION 4
ELECTRICAL ADJUSTMENTS
FM SECTION
BAND switch: FM
telescopic
antenna terminal
antenna terminal
FM RF signal
generator
generator
400Hz, 30% FM modulation
frequency deviation 22.5kHz
output level: as low as possible
frequency deviation 22.5kHz
output level: as low as possible
set
0.01
+
–
F
16
Ω
set
v
jack (J1)
level meter
Adjustment Location: MAIN BOARD (SIDE A)
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
done by the trimmer capacitors.
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
CT1-4
1,750 kHz
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L1
600 kHz
CT1-3
1,400 kHz
AM SECTION
BAND switch: AM
Put the lead-wire
antenna close to
the set.
antenna close to
the set.
AM RF signal
generator
generator
400Hz, 30%
AM modulation
Output level: as low as possible
AM modulation
Output level: as low as possible
16
Ω
set
v
jack (J1)
level meter
AM FREQUENCY
COVERAGE ADJ
COVERAGE ADJ
FM FREQUENCY
COVERAGE ADJ
CT1-4
L4
CT1-2 L3
FM
TRACKING
ADJ
T1
AM IF
ADJ
CT1-1 L2
AM
TRACKING
ADJ
CT1-3 L1
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