Pll Adjustments - Icom IC-2100H Service Manual

4-2
PLL
ADJUSTMENTS
ADJUSTMENT
ADJUSTMENT
CONDITION
MEASUREMENT
VALUE
ADJUSTMENT
POINT
UNIT
LOCATION
UNIT
ADJUST
PLL
LOCK
VOLTAGE
1
•
Displayed frequency
:
145.000
MHz
•
Receiving
MAIN
Connect a
digital
multi-meter or
oscil-
loscope
to the
check
point
CPI.
1.25-1.30
V
MAIN
L35
2
•
Transmitting
1.45-1.55
V
L2
PLL
REFERENCE
FREQUENCY
1
•
Displayed frequency
:
145.000
MHz
[EUR, TPE, THA]
146.000
MHz
[ITA,
USA, SEA,
LA]
• Output
power
:
Low
•
Transmitting
Rear
Pane!
Loosely couple
the
frequency
counter
to
the antenna con-
nector.
145.00000
MHz
[EUR, TPE, THA]
146.00000
MHz
[ITA,
USA, SEA,
LA]
MAIN
C119
DC
power
supply
13.8
V/
20
A
L35
PLL
lock
voltage
adjustment
for
RX
CP1
PLL
lock voltage
check
point
L2
PLL
lock voltage
adjustment
for
TX
C119
Reference frequency
adjustment
4-2
for free
by
RadioAmateur.eu