Adjustment Procedures; Preparation Before Serving; Required Test Equipments; Connections - Icom IC-7800 Service Manual

SECTION 4 ADJUSTMENT PROCEDURES

4-1 PREPARATION BEFORE SERVING

M

REQUIRED TEST EQUIPMENTS

EQUIPMENT
AC outlet Voltage
Measuring range
RF power meter Frequency range
Impedance
(terminated type)
SWR
Frequency range
Frequency counter Frequency accuracy
Sensitivity
Frequency range
RF voltmeter
Measuring range
Measuring range
AC millivolt meter
Power attenuation
Attenuator
Capacity
Frequency range
Oscilloscope
Measuring range
M

CONNECTIONS

AC outlet
AC millivolt meter
Speaker
AC millvolt Audio
generator
meter
[MIC]
GRADE AND RANGE
: 85–265 V
: 250–300 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
: 10 mV to 10 V
: 50 or 60 dB
: 200 W
: DC to 20 MHz
: 0.01–20 V
to [AC] connector
to MAIN [EXT SP]
PTT
EQUIPMENT
Frequency range
Audio generator
Measuring range
Frequency range
Standard signal
Output level
generator (SSG)
Input impedance
Digital multimeter
Input impedance
DC voltmeter
Measurement capability: 5 A/30 A
DC ammeter
Frequency range
Spectrum analyzer
Spectraum bandwidth : 100 kHz or more
Input impedance
External speaker
Capacity
Input impedance
Dummy load
Capacity
[ANT4] [ANT3] [ANT2] [ANT1]
4 - 1
GRADE AND RANGE
: 300–3000 Hz
: 1–500 mV
: 0.1–100 MHz
: 0.1 µV to 32 mV
(–127 to –17 dBm)
: 10 MΩ/DC or more
: 50 kΩ/V DC or better
: At least 90 MHz
: 8 Ω
: 5 W or more
: 50 and 100 Ω
: 200 W or more
Standard signal
generator
CAUTION !
DO NOT
transmit while
an SSG is connected to
the antenna connector.
RF power meter