Icom IC-726 Service Manual page 34

RECEIVER
ADJUSTMENT
(CONTINUED)
ADJUSTMENT ADJUSTMENT CONDITIONS
FM
S-METER
NOISE
BLANKER
MEASUREMENT
UNIT
LOCATION
ADJUSTMENT
POINT
>
Displayed frequency;
53.00000
MHz
Front
S-METER
>
Mode
:
FM
panel
>
Attach
the
SSG
to
the [50
MHz
ANT]
connector and
set as:
S9-F60 dB
Level
Modulation
Deviation
'
Receiving
3.2
mV* (-37 dBm)
1
kHz
±3.5 kHz
«
Displayed frequency:
14.10000
MHz
>
Mode
:
USB
>[NB] switch
:
ON
•
Attach the
SSG
to
the
[HF ANT]
connector and
set as:
Level
:
3.2
pV*(-97 dBm)
Modulation;
OFF
•
Apply
the following signal
into
the
SSG's
output.
•
Receiving
-Hh-
4 msec.
•
Displayed frequency:
52.90000
MHz
•
Mode
:
USB
>
Attach the
SSG
to
the [50
MHz
ANT]
connector and
set as:
Frequency
:
70.45150
MHz
Modulation:
OFF
Connector
the
oscilloscope
to
the
cathode
of
D13.
Preset
to
max.
CW.
Adjust
for
maximum
waveform on the
oscilloscope.
Connect
the
AC
milli-
voltmeter
to the
[EXT
SP] jack with a
speaker
(8
fl).
Set
SSG's
output level
so
that
the
signal
is
audible through the
speaker.
Adjust
tor
minimum
speaker
output.
*This
output level of the
standard
signal
generator (SSG)
is
indicated as
SSG's open
circuit.
6
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6