18
CFD-G505
digital
voltmeter
100 k
Ω
TP (VT)
i
jack (J391)
set
32
Ω
level meter
(range: 0.5–5 V ac)
Put the lead-wire
antenna close to
the set.
AM RF signal
generator
30% amplitude
modulation by
400 Hz signal
TP (FM IN)
FM RF signal
generator
0.01
µ
F
set
75 kHz frequency
deviation by 1 kHz signal
output level : as low as possible
TUNER SECTION 0 dB = 1
µ
V
• AM Section
Setting:
RADIO BAND•AUTO PRESET button: AM
• Connecting Level Meter (FM, AM)
• Connecting Digital Voltmeter (FM, AM)
•
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.
T1
450 kHz
AM FREQUENCY COVERAGE ADJUSTMENT
Frequency Display
530 kHz
1,710 kHz
Reading on Digital voltmeter
1.0
±
0.05 V
5.3
±
0.7 V
Adjustment Part
L4
<confirmation>
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3
CT3
620 kHz
1,400 kHz
FM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T2
10.7 MHz
FM FREQUENCY COVERAGE ADJUSTMENT
Frequency Display
87.5 MHz
108 MHz
Reading on Digital voltmeter
1.3
±
0.3 V
3.0
±
0.2 V
Adjustment Part
<confirmation>
L2
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1
CT1
87.5 MHz
108 MHz
Adjustment Location: See page 19.
• FM Section
Setting:
RADIO BAND•AUTO PRESET button: FM