NAD 7130 Service Manual

AM
ALIGNMENTS
Unless
repairs
have
been
done to Oscillator
Section,
do
not not adjust AM OSC
coil
or Trimming Capacitor.
If OSC
Adjustment
is
needed,
connect
high
impedance
voltmeter
(preferably DMM)
between
R35
and ground.
A.
OSC
ADJUSTMENT
1.
Tune
unit
to
show 1610KHz
or
1602KHz
on display
and adjust VC3
to read
7.5V
on
DMM.
2.
Tune
unit
to
show
520KHz
or
522KHz
on display
and adjust
L3
to
reads 1 V ±0.5V
on
DMM.
3.
Repeat
step
1 and 2
until
no
further
improvement.
B
IF
ADJUSTMENT
1.
For
IF
adjustment
and Tracking
adjustment
connect
VTVM to
loudspeaker
output (or tape
output),
only
one
channel
connection
needed,
and
connect
signal
generator to
antenna terminals.
Adjust
generator for
30%
modulation
and
approx.
lOOjuV
input.
Tune
both
generator and
receiver to
approx.
lOOOKHz,
and adjust
generator
frequency
for maximum reading
on
VTVM.
Then adjust IFT2,
and
IFT3for
maximum
reading
on meter.
C.
TRACKING
ADJUSTMENT
1.
Tune
unit
and
generator
to
show
approx.
600KHz
and adjust
L2
to maximum
reading on
VTVM.
2.
Tune
unit
and
generator
to
show
approx.
1400KHz
and adjust VC1
(Trimming Capacitor)
for maximum
reading
on
VTVM.
3.
Repeat
step 1
and
2
until no
further
improvement.
-
9
-
TUNER
ADJUSTMENT
POINTS
FRONT
END
-
10
-

NAD 7130 Specifications

General

Brand	NAD
Model	7130
Category	Stereo Receiver
Language	English