– 26 –
TUNER SECTION
AM Section
Function switch : MW or LW
Volume : MIN
FM Section
Function switch : FM
Volume : MIN
FM ANTENNA SELECTOR switch : EXT
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
MW/LW IF ADJUSTMENT
Adjust for a maximum reading on level meter.
CFT1
450kHz
MW FREQUENCY COVERAGE ADJUSTMENT
Adjust part
Frequency display
reading on digital
voltmeter.
L5
531kHz
Adjustment value :1.0V
Standard value : 0.8 – 1.2V
CT4
1,611kHz
Adjustment value :5.4V
Standard value : 5.0 – 5.8V
MW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L4
621kHz
CT2
1,404kHz
set
AM RF signal
generator
loop antenna A
loop antenna B
60cm
30% amplitude modulation by 400Hz
signal
Output level : as low as possible
LW FREQUENCY COVERAGE ADJUSTMENT
Adjust part
Frequency display
reading on digital
voltmeter
Confirmation
153kHz
Standard value : 0.5 – 0.9V
CT3
297kHz
Adjustment value :5.5V
Standard value : 5.1 – 5.9V
LW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3
162kHz
CT1
261kHz
FM RF signal
generator
22.5kHz frequency deviation by
400Hz signal.
Output level : as low as possible
FM EXT
ANTENNA
terminal
0.01
µ
F
set
32
Ω
+
–
J301 (phones)
level meter
0dB=1
µ
V