ZS-PS20CP
14
SECTION 4
ELECTRICAL ADJUSTMENTS
TUNER SECTION
0 dB = 1
μ
V
• AM Section
Setting:
RADIO BAND•AUTO PRESET button: AM
Put the lead-wire
antenna close to
the set.
AM RF signal
generator
30% amplitude
modulation by
400 Hz signal
• FM Section
Setting:
RADIO BAND•AUTO PRESET button: FM
ANT2
FM RF signal
generator
75 kHz frequency
deviation by 1 kHz signal
output level : as low as possible
0.01
μ
F
set
• Connecting Level Meter (FM, AM)
J
jack (J321)
set
32
Ω
level meter
(range: 0.5–5 V ac)
• Connecting Digital Voltmeter (FM, AM)
digital
voltmeter
100 k
Ω
TP (VT)
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be
fi
nally
done by the trimmer capacitors.
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
450 kHz
AM FREQUENCY COVERAGE ADJUSTMENT
Frequency Display
530 kHz
1,610 kHz
Reading on Digital voltmeter
0.8 ± 0.1 V
5.0 ± 0.6 V
Adjustment Part
L3
<con
fi
rmation>
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
ANT1
CT3
620 kHz
1,400 kHz
FM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
L6
10.7 MHz
FM FREQUENCY COVERAGE ADJUSTMENT
Frequency Display
87.5 MHz
108 MHz
Reading on Digital voltmeter
1.5 ± 0.5 V
3.0 ± 0.3 V
Adjustment Part
<con
fi
rmation>
L2
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1
CT1
87.5 MHz
108 MHz
Adjustment Location:
See page 15.
Summary of Contents for ZS-PS20CP
Page 53: ...MEMO ZS PS20CP 53 ...
