Sony ICF-SW35 - Section 3 Electrical Adjustments; FM Section Calibration; SW;MW;LW Section Calibration; Frequency Range and Tracking Checks

– 8 –
FM SECTION 0 dB = 1 µV
Setting:
BAND switch: FM
VOLUME: MAX
ATT: OFF
TONE: MUSIC
SECTION 3
ELECTRICAL ADJUSTMENTS
telescopic
antenna terminal
0.01µF
FM RF signal
generator
400Hz, 30% FM modulation
frequency deviation ±22.5kHz
Output level: as low as possible
set
SW/MW/LW SECTION
Setting:
BAND switch: SW or MW or LW
VOLUME: MAX
ATT: OFF
TONE: MUSIC
(SW)
telescopic
antenna terminal
10µF
AM RF signal
generator
400Hz, 30%
AM modulation
Output level: as low as possible
set
(MW/LW)
• Connecting Level Meter (FM, SW, MW and LW)
Put the lead-wire
antenna close to
the set.
AM RF signal
generator
400Hz, 30%
AM modulation
Output level: as low as possible
i jack (J1)
set
16 Ω
level meter
(range: 0.5–5 V ac
)
• Connecting Digital Voltmeter (FM, SW, MW and LW)
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
digital
voltmeter
TP
(VT)
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
Frequency Display 11,800 kHz
Adjustment Part T1, T4
LW FREQUENCY COVERAGE
CHECK
Frequency Display 150 kHz
Reading on Digital voltmeter 1.0 - 1.3 V
Adjustment Part <confirmation>
SW FREQUENCY COVERAGE
CHECK
Frequency Display 26,100 kHz
Reading on Digital voltmeter 8.0 - 9.0 V
Adjustment Part <confirmation>
FM FREQUENCY COVERAGE
CHECK
Frequency Display 76 MHz 108 MHz
Reading on Digital voltmeter 2.8 - 4.0 V 9.5 - 11.0 V
Adjustment Part <confirmation> <confirmation>
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
Frequency Display 76 MHz 108 MHz
Adjustment Part L11 CT1
Adjustment Location: See page 9.