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FM Signal Level Adjustment
FM RF signal
generator
FM ANTENNA
terminal (75 Q)
modulation : no modulation
output level: 10mV
(80dB yw)
Procedure:
1. Tune
the set to 98MHz.
2. Push the DISPLAY MODE
button for digital signal meter
indication.
3. Adjust
RV221
to the place
where
level
and
"75dB"
indication
lights on fluorescent
tube.
FM Stereo Separation Adjustment
FM FF signal
generator
ANTENNA
FM (75 Q)
OUTPUT
mode : Stereo
output
level: 10mV
(80dB uw)
Procedure:
FM
stereo
signal generator
output
channel
VTVM
VTVM
reading (dB)
connection
Adjust RV301
minimum
reading.
Adjust
RV301
for
minimum
reading.
L-CH
Stereo separation : @-®
R-CH
Stereo separation: ©-O
The
separation
of both channels
should
be equal.
FM Narrow Gain Adjustment
FM RFF signal
generator
ANTENNA
FM (75 Q)
OUTPUT
mode : mono
output
level: 32 uV (30dB p)
Procedure:
1. Tune the set to 98MHz.
2. Push
the
IF BAND
switch
and
put
on
the
light
the
"NARROW"
indicator in the fluorescent display.
3. Set SSG output level to 32 uwV (80dBy).
4, Adjustment
RV231
so
that
the
reading
on
VTVM
becomes
within 25 uV (28dBu)
— 40 uV (32dBy).
AM SECTION
AM
loop antenna
| 60cm |
loop antenna
loop antenna
AM
PF signal
generator
30%
amplitude
modulation
by
AOOHz
signal
Carrier frequency : 216kHz
(LW
Band)
AM
loop antenna
ee
i
;
Me
A
AM
antenna
terminal
dB p/m=
(SSG output level) — 26dB
AM Signal Level Adjustment
Procedure:
1. Set SSG output level so that antenna input level of the
set becomes 5.0mV (74dByu./m).
2. Adjust RV402
to the place where
level 10 in the signal
strength
indicator
turns
from
dark
to light.
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