Icom IC-706 Service Manual

TRANSMITTER ADJUSTMENT (CONTINUED)
MEASUREMENT
ADJUSTMENT
ADJUSTMENT
ADJUSTMENT CONDITIONS VALUE
POINT
UNIT LOCATION UNIT ADJUST
AM
1
• Displayed frequency:
14.10000 MHz
MAIN Connect an oscilloscope 200 mVp-p MAIN R195
MODULATION
• Mode
AM
to CP5.
• [01 RF POWER)
H
• [02 MIC GAIN)
5
• Disconnect the plug from J4 (MAIN unit).
2
• Connect the plug to J4 (MAIN unit).
Rear
Connect an RF power
35W
R499
• Apply no signal to [MIG] connector.
panel
meter to [ANT
1)
• Transmitting
connector.
3
• Connect an audio generator to [MIG]
Connect a modulation 85% modulation
R271
connector and set as:
analyzer to [ANT1) via an
100 mV
/1 kHz
attenuator.
-MAIN UNIT
o
®
DD
J4 AM modulation ---4l-!~~;;F':+l'I---L/
pre-setting
CPS AM modulation ---U-II-\.\~--===,........j===
check point
4-8
R499]
R271 A~ modulation
adjustment
R19S

Icom IC-706 Specifications

General

Antenna Impedance	50 ohms
Supply Voltage	13.8 V DC ±15%
Modes	SSB, CW, AM, FM
Current Drain Transmit	20 A (max)
Sensitivity SSB/CW	0.16 μV (10 dB S/N)
Sensitivity AM	2.0 μV (10 dB S/N)
Selectivity SSB	2.2 kHz/-6 dB, 4.5 kHz/-60 dB
Selectivity CW	500 Hz/-6 dB
Selectivity AM	6 kHz/-6 dB
Selectivity FM	30 kHz/-60 dB