— 12 —
4-3.
TUNER SECTION
•
Switch Location
VOLUME
: MAX
MEGA BASS
: OFF
PRESET SOUND MODE : OFF
BAND : AM
Signal generator
BAND : FM
Signal generator
Adjustment Location : MAIN board (Component side)
(See page 13)
0 dB = 1 µV
• Repeat the procedures in each adjustment several times for the
maximum level meter indication.
• The frequency coverage and tracking adjustments should be
finally done by the trimmer capacitors.
AM IF ALIGNMENT
Adjust for a maximum reading on level meter.
T2
455kHz
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3
620kHz
CV1 (3/4)
1,400kHz
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1
86.5MHz
CV1 (1/4)
109.5MHz
AM SECTION
FM SECTION
Put the lead-wire
antenna close to
the set.
30% amplitude modulation by 400Hz
signal.
Output level : as low as possible
AM RF signal
generator
0.01
µ
F
FM RF signal
generator
telescopic
antenna
terminal
75kHz (100%) amplitude modulation
by 1kHz signal.
Output level : as low as possible
32k
Ω
set
+
–
level meter
J302 (phones)
AM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L4
520kHz
CV1 (4/4)
1,780kHz
FM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
10.7MHz
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L2
86.5MHz
CV1 (2/4)
109.5MHz
