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NAD 1700 - AM Alignment Procedures; AM Oscillator Adjustment; AM Antenna and IF Alignment; AM Signal Meter Calibration

NAD 1700
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AM
ALIGNMENTS
A.
OSCILLATOR
1.
Connect
DMM
between
TP-102
and
ground.
2.
Tune
to
1710kHz.
Enter
into
preset
2.
Adjust
C-279
for
reading
of 31
+
0.5
VDC.
3.
Tune
to
520kHz.
Enter
into
preset
1.
Adjust
L-105
for
reading
of
1.8
+
0.1
VDC.
4.
Repeat
above
steps
2
and
3
until
within
tolerance.
B.
ANTENNA,
IF
1.
Swing
antenna
away
from
chassis.
2.
Connect
DC
voltmeter
to
centertap,
R-382
and
ground.
3.
Tune
to
a
station
of
moderate
strength
near
1400kHz.
Enter
into
Preset
4.
Adjust
C-280
for
maximum
reading
on
meter.
4.
Adjust
L-106
and
L-107
for
maximum
reading
on
meter.
5.
Tune
to
a
station
of
moderate
strength
near
600kHz.
Enter
into
Preset
3.
Adjust
L-901
for
maximum
reading
on
meter
(use
non-interactive
tool,
such
as
plastic
or
wooden
stick).
6.
Repeat
above
steps
3
and
5
until
no
further
improvement
is
seen.
C.
SIGNAL
METER
LEVEL
1.
Tune
to
1,000kHz
and
feed
1000uV
to
antenna
terminals.
2.
Adjust
R-382
so
that
fifth
LED
just
lights
up.
L901

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