Ctrl Unit Adjustment - Icom IC-7600 Service Manual

IDLING (PRE-DRIVER)

4-5 CTRL UNIT ADJUSTMENT

ADJUSTMENT ADJUSTMENT CONDITION
TUNER • Frequency
PRESET • Mode
• [TUNER]
• Transmitting (Max. power)
DUMMY LOAD
(50 Ω/120 W)
R4
1) Connect a 50 Ω dummy load to
: 50.0 MHz
: RTTY [ANT1].
: "THROUGH" 2) Connect the voltmeter to "REF."
3) Adjust the voltage.
<Viewing from the TOP side>
CTRL
UNIT
FILTER
UNIT
[ANT1]
4 - 8
CP1
IDLING (PRE-DRIVER)
(CHECK POINT)
OPERATION
PA
UNIT
"REF" "REF"
TUNER PRESET TUNER PRESET
(CHECK POINT) (CHECK POINT)
C5 C5
TUNER PRESET TUNER PRESET
ADJUSTMENT
VALUE
POINT
Minimum
C5
voltage