Adjustment Procedure; Preparation Before Servicing - Icom IC-706MKIIG Service Manual

SECTION 4
4-1 PREPARATION BEFORE SARVICING
• REQUIRED TEST EQUIPMENT
EQUIPMENT
Output voltage
DC power supply
Current capacity
Measuring range
RF power meter Frequency range
Impedance
(terminated type)
SWR
Frequency range
Frequency counter Frequency accuracy
Sensitivity
Frequency range
RF voltmeter
Measuring range
Frequency range
Standard signal
generator (SSG) Output level
Frequency range
FM deviation meter
Measuring range
Frequency range
Modulation analyzer
Measuring range
• CONNECTIONS
• Microphone connector
• (Rear panel view)
Pin 5
MIC GND
Pin 6
MIC INPUT
1 8
Pin 7
GND
DC power supply
AA13.8 V/30 A
Keyer

ADJUSTMENT PROCEDURE

GREDE AND RANGE
: 13.8 V DC
: 30 A or more
: 10–200 W
: 1.8–500 MHz
: 50 Ω
: Less than 1.2 : 1
: 0.1–500 MHz
: ±1 ppm or better
: 100 mV or better
: 0.1–500 MHz
: 0.01–10 V
: 0.1–30 MHz
: 0.1 µV–32 mV
(–127 to –17 dBm)
: 0–500 MHz
: 0 to ±5 kHz
: At least 500 MHz
: 0–100 %
–
Audio
+
generator
to [MIC]
Pin 4
PTT
to [DC 13.8 V]
AM meter
1 A, 30 A
to [ELEC KEY]
EQUIPMENT
Distortion meter
Oscilloscope
Digital multimeter
AC millivoltmeter
DC voltmeter
DC ammeter
Audio generator
Spectram analyzer
Attenuator
External speaker
to [EXT SP]
to [ANT 1/2]
IC-706MKIIG
4 - 1
GREDE AND RENGE
Frequency range : 1 kHz ±10 %
Measuring range : 1–100 %
Frequency range : DC–100 MHz
Measuring range : 0.01–10 V
Imput impeadance : 10 MΩ/DC or beter
Measuring range : 10 mV–10 V
Input impedance : 50 kΩ/V DC or better
Measurement capability: 1 A/50 A
Frequency range : 300–3000 Hz
Measuring range : 1–500 mV
Frequency range : At least 1000 MHz
Spectraum bandwidth : 100 kHz or more
Power attenuation : 50 or 60 dB
Capacity : 150 W or more
: 8 Ω
Input impedance
Capacity : 5 W or more
AC
millivoltmeter
Speaker
Attenuator FM deviation
50 or 60 dB AAmeter
Modulation
aanalyzer
RF power meter
A200 W/50 Ω
Frequency counter
Standard signal
aagenerator
CAUTION:
DO NOT connect the
signal generator while
transmitting.
Spectrum
analyzer