Ic-V82 Adjustmen - Icom IC-V82 Service Manual

5-2 IC-V82 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 FREQUENCY AND TRANSMIT ADJUSTMENT
ADJUSTMENT
ENTERING ADJUSTMENT MODE
REFERENCE
FREQUENCY
TRANSMIT
LOCK VOLTAGE
OUTPUT
POWER
(High)
(Middle)
(Low)
FREQUENCY
DEVIATION
DIGITAL VCO
FREQUENCY
DEVIATION
DTCS WAVE
FORM
DIGITAL
REFERENCE
FREQUENCY
DEVIATION
ADJUSTMENT CONDITION
• While pushing [ ], [ ] and [D•CLR] keys, turn power ON.
1 • Connect a frequency counter to
the antenna connector through
an attenuator.
• 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
1 • Mode : Wide
Connect an oscilloscope and
•
the FM deviation meter to the
antenna connector.
• Set the FM deviation meter as;
HPF : OFF
LPF : 20 kHz
De-emphasis : OFF
Detector : (P–P)/2
•
No audio input
• 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 146.000 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 7.0 W.
• Push [D•CLR] key.
• Rotate [VOL] to set the transmit power to 4.0 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.
• Push [D•CLR] key.
• Rotate [VOL] to set to ±1.20 kHz.
• Push [D•CLR] key.
• Rotate [VOL] to set to square wave form as
shown below.
• Push [D•CLR] key.
• Rotate [VOL] to set to ±1.20 kHz.
• Push [D•CLR] key.
Set to square wave
form