Icom IC-PW1 Service Manual page 20

MAIN UNIT ADJUSTMENT (Continued)
ADJUSTMENT ADJUSTMENT CONDITION
1 • Connect a DC ammeter to the
I ALC
D
"HV" line between power supply
unit and PA unit.
• METER-1
2
• Exciter frequency
• Mode
• Transmitting
3 • Connect a load-resistor between
"HV" line and "GND" line on
power supply unit.
• Transmitting
• Disconnect a DC ammeter, and
then connect a DC ammeter to
the "HV" line between power sup-
ply unit and a load-resistor.
4 • Disconnect a DC ammeter, and
then connect a DC ammeter to
the "HV" line between power sup-
ply unit and PA unit.
I METER 1 • Connect a DC ammeter to the
D
"HV" line between power supply
unit and PA unit.
• METER-1
• Exciter frequency
• Mode
• Transmitting
• I ALC and I meter adjustment
D D
FRONT
SIDE
MAIN UNIT
MEASUREMENT
UNIT
Controller [METER-1]
: [I ] scale.
D
Front Ammeter
: 14.1 MHz
panel
: RTTY
Controller [METER-1]
: [I ] scale.
D
: 14.1 MHz
: RTTY
R15
R22
I ALC adjustment
D
R22
I meter adjustment
D
4 - 8
VALUE
LOCATION
Set [I ] meter to a half
D
value of connecting
ammeter.
38 A
9.7 – 10.3 A
34.7 – 35.3 A
The same value of the
ammeter.
MAIN unit
ADJUSTMENT
POINT
UNIT ADJUST
MAIN R22
Exciter RF
power
The
load-
resistor
MAIN R15
MAIN R22