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SECTION 2
ELECTRICAL ADJUSTMENTS
AM
IF ADJUSTMENT
Adjust for a maximum
reading on VTVM.
MW/LW Section
Seta
Note: Receive 531kHz.
MW
antenna close to
Frequency
the set.
Part
Display
voltmeter
———
(confirmation)
531kHz
More than 1.5V
' |
(Standard
1.7V)
30 % amplitude
400Hz
signal
Note: Not use the AM RF signal generator in this adjustment.
Output level: as low as possible
MW TRACKING
ADJUSTMENT
Adjust for a maximum
reading on VTVM.
1,404kHz
621kHz
FM RF signal
—
Part
Display
voltmeter
(C.-
FM ANT
(Receive 281kHz)
terminal
(confirmation)
153kHz
More than 1.0V
+22.5kHz frequency deviation
(Standard 1.1V)
Output level: as low as possible
LW TRACKING
ADJUSTMENT
Adjust for a maximum
reading on VTVM.
cra
FM VCO VOLTAGE
ADJUSTMENT
Adjustment
Frequency
Reading on Digital
Part
Display
voltmeter
87.5MHz
More than 1.8V
(Standard 2,2V)
capacitors.
.
Note: Not use the FM signal generator in this adjustment.
speaker terminal
e Repeat the procedures in each adjustment several times,
and the tracking adjustments should be fimally the trimmer
FM TRACKING
ADJUSTMENT
Adjustment
Location
:
Adjust for a maximum
reading on VTVM.
108MHz
87.5MHz
(MAIN BOARD] —COMPONENT SIDE—
[KEY BOARD] —CONDUCTOR SIDE—
IC1
L5
MW
VCO
VOLTAGE
Adjustment
FM
~Y)
Ld
F=~—— 3-1 > TRACKING
FM VCO
Adjustment
VOLTAGE
eee
©&)
Adjustment
(S)
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