Nikko Gamma I - Test Equipment; Shielded Cable

ALIGNMENT
Test Equipment
Allow
a
minimum
of
10
minutes
warm-up
for
test
equipment
and
the
tuner
to
be
tested.
Maintain
rated
line
voltage.
EM
Stereo/Mono
Signal
Generator.
Vacuum
Tube
Voltmeter
(VT
VM)
Oscilloscope
Distortion Meter
Frequency
Counter
FM
Section
Alignment
Connect
test
equipment
as
shown
in
Figure
1.
Connect
FM
Stereo/Mono
signal
generator
through
standard
dummy
antenna
to
FM
antenna
terminals
of
the
tuner.
Connect
VTVM,
oscilloscope
and
distortion
meter
to
OUTPUT
terminals
of
the
tuner
with
shielded
cable.
Note:
Adjust
FM
signal
generator
output
level
so
that
waveform
on
oscilloscope
is
uniform.
FM
1-F
Alignment
1.
Set
FMsignal
generator
for
98
MHz.
2.
Adjust
the
generator
to
+75
KHz
deviation
at
1000
Hz.
3.
Switch:
a.
Ff
BAND
to
“NARROW”
position.
b.
HI
BLEND
to
“OFF”
position.
c.
MODE
to
“MONO”
position.
V.T.V.M.
STANDARD DUMMY ANTENNA
TO FM ANTENNA
SHIELDED CABLE
6
.
DISTORT
Figure
1.
TEST
EQUIPMENT
ee