Icom IC-756PROIII - Adjustment Procedures; Required Test Equipment; Connections for Adjustments

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REQUIRED TEST EQUIPMENT
EQUIPMENT GRADE AND RANGE EQUIPMENT GRADE AND RANGE
DC power supply
Output voltage
Current capacity
: 13.8 V
: 30 A or more
Audio generator
Frequency range
Measuring range
: 300–3000 Hz
: 1–500 mV
RF power meter
(terminated type)
Measuring range
Frequency range
Impedance
SWR
: 10–200 W
: 1.8–100 MHz
: 50
Ω
: Less than 1.2 : 1
Standard signal
generator (SSG)
Frequency range
Output level
: 0.1–300 MHz
: 0.1 µV to 32 mV
(–127 to –17 dBm)
AC millivoltmeter Measuring range : 10 mV–10 V
Frequency counter
Frequency range
Frequency accuracy
Sensitivity
: 0.1–100 MHz
: ±0.5 ppm or better
: 100 mV or better
DC voltmeter Input impedance : 50 k
Ω
/V DC or better
DC ammeter Measuring range : 1 A/30 A
RF voltmeter
Frequency range
Measuring range
: 0.1–100 MHz
: 0.01–10 V
Spectrum analyzer
Measuring range
Spectrum bandwidth
: At least 90 MHz
: 100 kHz or more
Modulation analyzer
Frequency range
Measuring range
: At least 90 MHz
: 0–100%
Attenuator
Power attenuation
Capacity
: 50 or 60 dB
: 150 W or more
Distortion meter
Frequency range
Measuring range
: At least 90 MHz
: 0–100%
External speaker
Resistance
Capacity
: 8
Ω
: 5 W or more
Oscilloscope
Frequency range
measuring range
: DC–20 MHz
: 0.01–20 V
4 - 1
SECTION 4 ADJUSTMENT PROCEDURES
4-1 PREPARATION
■ CONNECTIONS
[ANT1] [ANT2]
FM deviation meter
Modulation analyzer
RF power meter
Spectrum analyzer
Attenuator
Distortion meter
DC power supply Ammeter
Standard signal
generator
CAUTION !
DO NOT transmit while
an SSG is connected to
the antenna connector.
to the antenna connector
to [DC 13.8 V]
to [EXT SP]
Speaker
Audio generator
PTT
[MIC]