Adjustment Procedure - Icom IC-756PRO III Service Manual

SECTION 4
4-1 PREPARATION
■
REQUIRED TEST EQUIPMENT
EQUIPMENT
Output voltage
DC power supply
Current capacity
Measuring range
RF power meter Frequency range
(terminated type) Impedance
SWR
Frequency range
Frequency counter Frequency accuracy
Sensitivity
Frequency range
RF voltmeter
Measuring range
Frequency range
Modulation analyzer
Measuring range
Frequency range
Distortion meter
Measuring range
Frequency range
Oscilloscope
measuring range
■
CONNECTIONS
Standard signal
generator
CAUTION !
DO NOT
transmit while
an SSG is connected to
the antenna connector.
DC power supply
Distortion meter
Speaker
Audio generator
[MIC]

ADJUSTMENT PROCEDURE

GRADE AND RANGE
: 13.8 V
: 30 A or more
: 10–200 W
: 1.8–100 MHz
: 50 Ω
: Less than 1.2 : 1
: 0.1–100 MHz
: ±0.5 ppm or better
: 100 mV or better
: 0.1–100 MHz
: 0.01–10 V
: At least 90 MHz
: 0–100%
: At least 90 MHz
: 0–100%
: DC–20 MHz
: 0.01–20 V
to [DC 13.8 V]
Ammeter
to [EXT SP]
PTT
EQUIPMENT
Frequency range
Audio generator
Measuring range
Standard signal Frequency range
generator (SSG) Output level
AC millivoltmeter Measuring range
DC voltmeter Input impedance
DC ammeter Measuring range
Spectrum analyzer Measuring range
Spectrum bandwidth
Power attenuation
Attenuator
Capacity
Resistance
External speaker
Capacity
Attenuator
[ANT1] [ANT2]
4 - 1
GRADE AND RANGE
: 300–3000 Hz
: 1–500 mV
: 0.1–300 MHz
: 0.1 µV to 32 mV
(–127 to –17 dBm)
: 10 mV–10 V
: 50 kΩ/V DC or better
: 1 A/30 A
: At least 90 MHz
: 100 kHz or more
: 50 or 60 dB
: 150 W or more
: 8 Ω
: 5 W or more
FM deviation meter
Modulation analyzer
Spectrum analyzer
RF power meter