Icom IC-730 Maintenance Manual page 69

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00
I
Adjustment
item
Speech
processor
adjustment
RF meter
adjustment
APC check
Adjusting procedures
Measuring
instruments
1) Set mode switch to SSB or AM.
2) Connect an AF oscillator to MIC
AF
connector.
oscillator
Oscillator output: 1.5 kHz 100mV
3) Connect oscilloscope to R103 of MAIN
Oscilloscope
UNIT.
4) Adjust R99 of MAIN UNIT so that
clipping waveform on the oscillosocpe
becomes
~qual.
1) Set meter swtich to R F side, S 1 of the
MAIN UNIT to POWER side,
mode switch to CW, band to 14 MHz
and RF power control to MAX.
2) Adjust R82 of MAIN unit so that RF
RF meter
meter becomes full scale.
3) With S1 of MAIN UNIT set to SWR
side, confirm that the meter indicates
1.2 or less on the SWR scale (in any
band).
1) Remove cable of ANT connector
during transmission as above.
2) Confirm that total current at that time
is less than 10A.
Measuring location
Adjusting location
Number of
Instrument
adjusting
UNIT
Terminal
UNIT
Parts
reading
location
Front
MIC
MAIN
R103
@
MAIN
R99
Waveform clip
@J
should be sym-
metrical in
upper and lower
side.
MAIN
R82
Full scale
~
1.2 or less
Confirm that
total curren in
any band is less
than lOA.
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