– 13 –
•
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.
CFT1
450kHz
AM FREQUENCY COVERAGE ADJUSTMENT
Adjust part
Frequency display
reading on digital
voltmeter.
L4
530kHz
Adjustment Value : 0.9V
Standard Value : 0.85 – 0.95V
Confirmation
1,710kHz
4.6 – 5.8V
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3
620kHz
CT3
1,400kHz
TUNER SECTION
AM Section
BAND button : AM
Volume : MIN
FM Section
BAND button : FM
Volume : MIN
Adjustment Location : Tuner boar d (See pa ge 14)
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust part
Frequency display
reading on digital
voltmeter.
Confirmation
87.5MHz
1.55 – 1.85V
L2
108MHz
Adjustment Value : 4.0V
Standard Value : 3.9 – 4.1V
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1
87.5MHz
CT1
108MHz
AM RF signal
generator
30% amplitude modulation by 400Hz
signal.
Output level : as low as possible
Put the lead-wire
antenna close to
the set.
FM RF signal
generator
22.5kHz frequency deviation by
400Hz signal.
Output level : as low as possible
telescopic
antenna
terminal
0.01
µ
F
set
16
Ω
+
–
i
jack (J501)
level meter
0 dB = 1
µ
V
SECTION 5
ELECTRICAL ADJUSTMENTS
