Sony PMC-DR45 - Tuner Section Adjustments

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FM FREQUENCY COVERAGE
ADJUSTMENT
Frequency Display 87.5 MHz 108 MHz
Reading on Digital voltmeter 1.5 ± 0.1 V 3.8 ± 0.4 V
Adjustment Part L2 <confirmation>
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1 CT1
87.5 MHz 108 MHz
FM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T2
10.7 MHz (Display: 98 MHz)
AM FREQUENCY COVERAGE
ADJUSTMENT
Frequency Display 530 kHz 1,710 kHz
Reading on Digital voltmeter 0.9 ± 0.1 V 5.1 ± 0.4 V
Adjustment Part T4 <confirmation>
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
T3 CT3
620 kHz 1,400 kHz
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
450 kHz (Display: 1,000 kHz)
Adjustment Location: TUNER board (See page 19.)
5-2. TUNER SECTION 0 dB = 1 µV
• FM Section
Setting:
BAND button: FM
75 kHz frequency
deviation by 1 kHz signal
output level : as low as possible
• AM Section
Setting:
BAND button: AM
30% amplitude
modulation by 400 Hz signal
output level : as low as possible
• Connecting Level Meter (FM and AM)
FM termina
l
(J1)
FM RF signal
generator
0.01 µF
set
Put the lead-wire
antenna close to
the AM loop
antenna.
AM RF signal
generator
i (headphones) jack (J301)
set
32 Ω
level meter
(range: 0.5-5 V ac
)
digital
voltmeter
tuner board
TP (VT)
• Connecting Digital Voltmeter (FM and AM)
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.