Pll Adjustment - Icom IC-3200A Service Manual

5-2
PLL
ADJUSTMENT
TEST INSTRUMENTS REQUIRED MEASUREMENT CONNECTION
LOCATION
VOLTAGE REGULATED POWER
SUPPLY
* Output
voltage
:
13.6V
DC ±15%
• Current capacity
:
lOAormore
(2)
FREQUENCY COUNTER
• Frequency
minimum
'
0.1
^470MHz
• Frequency accuracy
:
Ippm
or
better
*
Sensitivity
:
lOOmV
or better
(3)
VOLTMETER
* Input
.impedance SOkfiA/
DC
or better
(4)
RF
POWER METER
• Termin.ated type
• Minimum power
rating
:
150W
•
Frequency
minimum
:
30MHz
• Input impedance
:
50Q
•
SWR
;
1:1,2
0
/
better
IC-3200A/E
adjustment ADJUSTMENT
CONDITIONS
MEASUREMENT
VALUE
ADJUS
PO
TMENT
NT
UNIT LOCATION
UNIT
ADJUST
vco
CONTROL
VOLTAGE
0
VHP BAND
[BAND
A)
IC-3200A
(USA)
1
• Frequency
display:
144.00MHz
Receive mccfe
PLL
!
Connect
a voltmeter
to
R104,
2.0
V
RX
VCO
(PLL)
La
2
• Frequency
display:
144,00MHz
*
Transmit
mode
Connect
a voltmeter
lo
R4.
i
2.5
V
TX
VCO
(PLL)
L7
®
UHF BAND
(BAND
B)
iC-3200A
1
(USA)
©
VHP
BAND
(BANDA)
IC-32CK)A(VK)
IC-3200E
®
UHF BAND
[BAND
B)
JC-3200A(VK)
IC-3200E
1
•
Frequency
display:
440,00MHz
•
Receive
mode
Connect a
voltmeter
to
R104,
2,0V
RX
VCO
(PLL)
Cl
6
2
• Frequency
display:
440MHz
*
Transmit
mode
Connect
a voltmeter
to
R4,
2.0V
TX
VCO
C2
1
Frequency
display;
144.00MHz
*
Receive
mode
Connect
a voltmeter to
R104.
2,0V
RX
VCO
L3
2
•
Frequency
display:
144.00MHz
• Transmit
mode
Connect
a voltmeter
to
R4.
j
2.5V
TX
VCO
L7
1
*
Frequency
display:
43O.00MHz
*
Receive
mode
Connect
a voltmeter
to
R104.
2.0V
RX
VCO
C16
2
*
Frequency
display:
430,00MHz
•
Transmit
mode
Connect
a voltmeter
to
R4.
2.0V
TXVCO
G2
FREQUENCY
®
IC-3200A
(USA)
®
IC-3200A
(VK)
1
•
Frequency
display:
450.00MHz
•
Connect a
dummy
bad
to
ANTENNA CONNECTOR,
• Transmit
mode
PLL
.
1
Make
a
loose coupling
between
a
frequency
counter and
the
dummy
load.
450.0000MHz
PLL
C5
1
•
Frequency
display:
440,00MHz
» Connect
a
dummy
load
to
ANTENNA CONNECTOR.
•
Transmit
mode
440.0000MHz
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