Ic-U82 Adjustment - Icom IC-U82 Service Manual

5-2 IC-U82 ADJUSTMENT

5-2-1 KEY OPERATION FOR THE ADJUSTMENT
• Rotate [VOL] to adjust the value.
• Push [D•CLR] key to store the adjustment value and move to next adjustment item.
• Push [ ]/[ ] key to move to next adjustment item without changing the value.
5-2-2 ADJUSTMENT
ADJUSTMENT
ENTERING ADJUSTMENT MODE
REFERENCE
FREQUENCY
(other than USA)
(USA version)
TRANSMIT
LOCK VOLTAGE
(other than USA)
(USA version)
OUTPUT
POWER
(High)
(other than USA)
(USA version)
(Middle)
(other than USA)
(USA version)
(Low)
(other than USA)
(USA version)
FREQUENCY
DEVIATION
(other than USA)
(USA version)
DIGITAL VCO
FREQUENCY
DEVIATION
(other than USA)
(USA version)
ADJUSTMENT CONDITION
1 • Connect the JIG to the [SP] jack (see page 5-1).
2 • While pushing [ ], [ ] and [D•CLR] keys, turn power ON.
1 • Connect an RF power meter
or dummy load to the antenna
connector, and loosely couple the
frequency counter to the antenna
connector.
• Transmitting
1 • Transmitting
1 • Connect an RF power meter to the
antenna connector.
•
Transmitting
2 • Transmitting
3 • Transmitting
1 • Mode : Wide
• Connect an FM deviation meter
to the antenna connector through
an attenuator and set as :
HPF : OFF
LPF : 20 kHz
De-emphasis : OFF
Detector : (P–P)/2
Connect an audio generator to
•
[MIC] jack and set as;
Frequency : 1 kHz
Level : 150 mV rms
• Transmitting
1 • Set the FM deviation meter as;
HPF : OFF
LPF : 20 kHz
De-emphasis : OFF
Detector : (P–P)/2
•
No audio input
• Transmitting
5 - 2
OPERATION
• Rotate [VOL] to set to 432.000 MHz ±100Hz.
• Push [D•CLR] key.
• Rotate [VOL] to set to 445.000 MHz ±100Hz.
• Push [D•CLR] key.
• Push [D•CLR] key, then push [ ] key.
(Do not release [PTT] button when pushing [D•CLR]
key.)
• Rotate [VOL] to set the transmit power to 5.0 W.
• Push [D•CLR] key.
• Rotate [VOL] to set the transmit power to 2.0 W.
• Push [D•CLR] key.
• Rotate [VOL] to set the transmit power to 0.5 W.
• Push [D•CLR] key.
• Rotate [VOL] to set to ±4.2 kHz deviation.
• Push [D•CLR] key.
Set to square wave
form
• Rotate [VOL] to set to ±1.20 kHz deviation.
• Push [D•CLR] key.