Icom IC-756PRO III Service Manual page 32

4-5 TUNER ADJUSTMENTS
ADJUSTMENT ADJUSTMENT CONDITION
SWR 1 • D i s p l ay f r e q .
DETECTOR • Mode
• [RF POWER]
• [TUNER]
• Connect a 50 Ω dummy load to
[ANT1] connector.
• Transmitting
ADJUSTMENT CONDITION
2 • Enter the tuner adjustment mode:
q Turn power OFF.
3
w T e r m i n a t e t h e [ R E -
M O T E ] j a c k w i t h a
3.5 (d) mm mini-plug.
4
e While pushing [FILTER] and
[EXIT/SET], turn power ON.
• CTRL-A unit
CTRL-A unit
Top view of the transceiver
MEASUREMENT
UNIT
: 29.70000 MHz CTRL-A
: FM
: Max. CW
: Through
TUNER-ADJUSTMENT MODE
--TUNER--
Adjusting Now
--TUNER--
OK
4 - 12
LOCATION
Connect a digital Minimum voltage
multimeter or oscil-
loscope to the check
point J14.
DISPLAY
Push [F5 (START)] to start tuning.
Verify the display shows "Adjusting Now".
Verify the display shows "OK".
ADJUSTMENT
POINT
VALUE
UNIT
CTRL-A
OPERATION
C3
SWR detector
adjustment
J14 (REF)
SWR detector
check point
ADJUST
C3