Icom IC-R10 Service Manual

5-1
PLL AND BFO
ADJUSTMENT
ADJUSTMENT ADJUSTMENT
CONDITIONS
MEASUREMENT
VALUE
ADJUSTMENT
UNIT LOCATION
UNIT ADJUST
1ST
VCO
LOCK
VOLTAGE
1
•
Displayed
frequency: 200 MHz
:
534 MHz
: 610 MHz
: 846 MHz
•
Receiving
MAIN Connect a
voltmeter
(1
MQ impedance) to
the
check point LVI.
More than 0.2 V
Verify
2
•
Displayed frequency: 533
MHz
:
609
MHz
: 845 MHz
:
895
MHz
•
Receiving
Less
than 3.3 V
2ND VCO
LOCK
VOLTAGE
1
•
Displayed frequency: 100 MHz
•
Mode : SSB
•
Noise Blanker :
ON
•
Receiving
MAIN
Connect
a
voltmeter
(1
MQ impedance) to
the check point 21 LV.
Less
than 2.5 V Verify
2
•
Displayed frequency: 500
MHz
•
Receiving
More than 0.6 V
3
•
Displayed frequency: 100
MHz
•
Mode
: SSB
•
Noise
Blanker : ON
•
Receiving
Connect a
voltmeter
(1
MQ
impedance) to
the check point
22
LV.
Less
than 2.5 V
4
•
Displayed frequency: 500
MHz
•
Receiving
More than 0.6 V
1ST
REFERENCE
FREQUENCY
1
•
Displayed
frequency: Any
•
Mode
: Any
•
Receiving
MAIN Connect a
frequency
counter
to
the check
point REF.
10.24500 MHz RF C501
BFO
FREQUENCY
1
•
Displayed frequency:
144.0000 MHz
•
Mode : LSB
•
Receiving
LOGIC Connect a
frequency
counter
to
the check
point CPI
.
453.500 kHz LOGIC R239
2
•
Mode
: USB
•
Receiving
456.500
kHz R243
5-1

Icom IC-R10 Specifications

General

Brand	Icom
Model	IC-R10
Category	Receiver
Language	English