Icom IC-R2 Service Manual

5 - 3
5-2 PLL ADJUSTMENT
1ST VCO
LOCK
VOLTAGE
(SHIFT ON)
(SHIFT OFF)
2ND VCO
LOCK
VOLTAGE
REFERENCE
FREQUENCY
DETECTOR
OUTPUT
VOLTAGE
ADJUSTMENT
ADJUSTMENT ADJUSTMENT CONDITION
MEASUREMENT
VALUE
POINT
UNIT LOCATION UNIT ADJUST
1
2
1
2
1
2
1
1
• Displayed frequency :
493.300 MHz
• Receiving
• Displayed frequency :
282.900 MHz
• Receiving
• Displayed frequency :
0.495 MHz
• Receiving
• Displayed frequency :
493.295 MHz
• Receiving
• Displayed frequency :
430.000 MHz
• Receiving
• Displayed frequency :
493.300 MHz
• Receiving
• Displayed frequency :
(FR ch) 280.100 MHz
• Receiving
• Displayed frequency :
(tk ch) 145.600 MHz
• Connect an SSG to the antenna
connector and set as:
Level : 1 mV
* (60 dBµ)
Deviation : ± 3.5 kHz
Modulation : 1 kHz
• Receiving
RF
RF
RF
RF
Connect the digital
multi-meter to the
check point LV1.
Connect the digital
multi-meter to the
check point LV2.
Connect the fre-
quency counter to
the check point F.
Connect the digital
multi-meter to check
point QUAD.
1.9 V – 2.9 V
less than 12 V
1.4 V – 2.4 V
less than 12 V
0.4 V – 1.0 V
less than 2.5 V
546.7999 MHz –
546.8001 MHz
1.0 V
LOGIC
RF
Verify
[DIAL]
L21
*This output level of the standard signal generator (SSG) is indicated as SSG’s open circuit.

Icom IC-R2 Specifications

General

Brand	Icom
Model	IC-R2
Category	Receiver
Language	English