Sony PMC-107L, Service Manual, Page: 14 / 50

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FM FREQUENCY COVERAGE
ADJUSTMENT
Frequency Display
87.5 MHz
108 MHz
(65 MHz)
Reading on Digital voltmeter
1.8
±
0.2 V 5.6
±
0.2V
(0.9
±
0.2 V) (7.3
±
0.2 V)
Adjustment Part L6 <confirmation>
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L5 CT1
87.5 MHz (68 MHz) 108 MHz (102 MHz)
MW FREQUENCY COVERAGE
ADJUSTMENT
Frequency Display 531 kHz 1,611 kHz
Reading on Digital voltmeter 0.9
±
0.1 V 5.6
±
0.2V
Adjustment Part L2 CT2
MW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L9 CT4
621 kHz 1,404 kHz
LW FREQUENCY COVERAGE
ADJUSTMENT
Frequency Display 153 kHz 279 kHz
Reading on Digital voltmeter 0.6
±
0.1 V 5.3
±
0.2V
Adjustment Part CT3 <confirmation>
LW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L10 CT5
162 kHz 261 kHz
( ) : East European model
Adjustment Location: See page 15.
TUNER SECTION 0 dB = 1
µ
V
• FM Section
Setting:
BAND switch: FM
22.5 kHz frequency
deviation by 400 Hz signal
output level : as low as possible
• MW/LW Section
Setting:
BAND switch: MW or LW
30% amplitude
modulation by
400 Hz signal
• Connecting Level Meter (FM, MW and LW)
• Connecting Digital Voltmeter (FM, 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.
TP (FM ANT)
FM RF signal
generator
0.01
µ
F
set
Put the lead-wire
antenna close to
the supplied MW/LW
loop antenna.
AM RF signal
generator
phones jack
set
32 Ω
level meter
(range: 0.5–5 V ac)
digital
voltmeter
100 k Ω
TP (VT)