Icom IC-730 - Receiver Adjustment

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8 - 3 RECEIVER ADJUSTMENT
Adjustment
Adjusting procedures
item
AGCGAIN
Adjusting conditions:
adjustment
0
MODE: USB
0
Displayed frequency:
14.098.5 MHz.
0
RF GAIN: MAX
0
IF SHIFT: CENTER
0
RIT: OFF
0
AGC: FAST
0
PRE AMP: OFF
1) Connect t~e AC millivoltmeter to
external SP terminal in parallel with
8-ohms speaker.
2) Connect SSG to the ANT connector.
Rotating the tuning control
with the
frequency
set to 14.100.0 MHz,
receive with the maximum reading of
the mllivoltmeter.
3) With input from SSG set to +14 dBIl
(loaded), adjust L1 of DET PCB for
minimum reading.
4) Adjust AF GAIN so that reading of
the millivoltmeter becomes 1 V.
5) With SSG output turned OFF, adjust
L6
of MAIN UNIT so that reading of
the millivoltmeter is lowered 30 dB
than the reading obtained in
above 4).
At the time, adjust L6 in the direction
where core
goes down.
Measuring location
Adjusting location
Number
of
Instrument
adjusting
Measuring
UNIT
Terminal UNIT
Parts
reading
location
instruments
AC
Rear
EXT. SP
millivolt-
panel
meter 8-ohms
speaker
SSG
Rear
ANT
panel
DET L1
Minimum
~
,-
MAIN L6
~
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