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FM
TEST PROCEDURE
STEP
ANTENNA
SIGNAL
GENERATOR
COUPLING
SIGNAL
GENERATOR
FREQUENCY
INPUT
SELECTOR
SWITCH
DIAL
SETTING
OUTPUT
METER
ADJUST
REMARKS
1.
Dummy
antenna
Figure
FM-1
External
300
ohm
term.
Use
low
signal
level
10.7
MHz
100%
mod,
FM
Off
Station
VIVM
@ Tape
Output
Front
End
IF
Adjust
for
maximum
signal
strength
meter
indication
Same
as
above
Same
as
above
90
MHz
1 kHz
Modu-
lation.
Keep
generator
output
low.
Same
90
MHz
Same
Front
End
LO
Adjust
for
dial
calibration
Same
as
above
Same
as
above
Same
Same
Same
Same
Front
End
LA
LR,
LR,
Adjust
for
maximum
audio
output.
Keep
signal
level
low.
Same
as
above
No
output
Same
as
above
Same
Off
Station
Use
noise
only
Same
Same
Detector
T102
Use
center
tune
meter
(R326).
R316
use
DC
VIVM
con-
nected,
negative
to
ground,
positive
to
P106.
Adjust
for
zero
DC
Volts.
Same
as
above
External
300
ohm
tern.
Use
low
signal
Level
90
MHz
FM
90
MHz
VIVM
@ Tape
Output
T1i01
Adjust
for
maximum
output
and
minimum
distortion
Same
as
above
Same
as
above
106
MHz
Keep
Gener-
ator
output
low
Same
106
MHz
Same
TCO
Adjust
for
dial
calibration
Same
as
above
Same
as
above
106
MHz
Same
106
MHz
Same
TCA, TCR
d TCR
an
9
1
Adjust
for
maximum
audio
output,
keep
input
level
low
for
noisy
signal
Repeat
steps
2,
3,
6
and
7
until
no
further
improvement
is
noted.
Check
specification.
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