Electrical Adjustments; Fm Section; Sw/Mw/Lw Section - Sony ICF-SW35 Service Manual

FM SECTION

0 dB = 1 µV
Setting:
BAND switch: FM
VOLUME: MAX
ATT: OFF
TONE: MUSIC
FM RF signal
generator
400Hz, 30% FM modulation
frequency deviation 22.5kHz
Output level: as low as possible

SW/MW/LW SECTION

Setting:
BAND switch: SW or MW or LW
VOLUME: MAX
ATT: OFF
TONE: MUSIC
(SW)
AM RF signal
generator
400Hz, 30%
AM modulation
Output level: as low as possible
(MW/LW)
AM RF signal
generator
400Hz, 30%
AM modulation
Output level: as low as possible
• Connecting Level Meter (FM, SW, MW and LW)
set
i jack (J1)
SECTION 3

ELECTRICAL ADJUSTMENTS

telescopic
antenna terminal
0.01 F
set
telescopic
antenna terminal
10 F
set
Put the lead-wire
antenna close to
the set.
level meter
(range: 0.5–5 V ac)
16
• Connecting Digital Voltmeter (FM, SW, MW and LW)
TP
(VT)
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
Frequency Display
Adjustment Part
LW FREQUENCY COVERAGE
Frequency Display
Reading on Digital voltmeter
Adjustment Part
SW FREQUENCY COVERAGE
Frequency Display
Reading on Digital voltmeter
Adjustment Part
FM FREQUENCY COVERAGE
Frequency Display
Reading on Digital voltmeter
Adjustment Part
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
Frequency Display
Adjustment Part
Adjustment Location: See page 9.
– 8 –
digital
voltmeter
11,800 kHz
T1, T4
CHECK
150 kHz
1.0 - 1.3 V
<confirmation>
CHECK
26,100 kHz
8.0 - 9.0 V
<confirmation>
CHECK
76 MHz 108 MHz
2.8 - 4.0 V 9.5 - 11.0 V
<confirmation> <confirmation>
76 MHz 108 MHz
L11 CT1