Icom IC-730 - Page 56

Q)
I
w
Adjustment
item
PLL frequency
adjustment
PRE MIX
frequency
adjustment
Adjusting procedures
;.
'ill
1) Set the mode switch to AM or CW and
displayed frequency at 13.900.0 MHz.
2) Set the FREQUENCY SET R162. of
MAIN UNIT to the center position.
3) Connect the frequency counter
to R11
of the PLL UNIT.
4) With the RIT SW turned OFF. adjust
the frequency
at R2 of the RIT PCB
to 41.000;() MHz.
5) With the R IT SW turned ON and
RIT knob placed at the center position
adjust the frequency at
R2 of the
RIT PCB to 41.000.0 MHz.
6) Connect the frequency counter
to P1
of PLL.
7) Adjust C31 of PLL UNIT so that the
frequency becomes
13.200.0 MHz.
1) MODE: AM or CW
2) Connect the frequency counter to P3
of B.P.F UNIT.
Measuring
instruments
Frequency
counter
Frequency
counter
Frequency
counter
Measuring location
Adjusting location
Number
of
Instrument
adjusting
UNIT
Terminal UNIT
Parts
reading
location
@
(R162)
(Center)
PLL R11
CD
RIT R2
41.000.0 MHz
~
RIT R3
41.000.0 MHz
~
PLL
P1
®
PLL
C31
13.200.0 MHz
~
"
B.P.F.
P3
®
PRE. MIX
for free by
RadioAmateur.eu