Adjustment Procedures; Preparation Before Servicing - Icom IC-706 Service Manual

SECTION 4 ADJUSTMENT PROCEDURES
4·1 PREPARATION BEFORE SERVICING
.REQUIRED TEST EQUIPMENT
EQUIPMENT GRADE AND RANGE
EQUIPMENT GRADE AND RANGE
DC power supply Output voltage : 13.8 V DC AC millivoltmeter Measuring range : 10mV-10V
Current capacity
: 30 A or more
DC voltmeter Input Impedance : 50 kQ/DC or better
RF power meter
Measuring range
: 10 200W
Ammeter Measurement capability: 1 A and 30 A
(terminated type) Frequency range : 1.8-30 MHz
Impedance : 50n
Audio generator
Frequency range
: 300-3000 Hz
SWR : Less than 1.2:1
Output level
: 1-500 mV
Frequency counter Frequency range : 0.1-100 MHz
Attenuator Power attenuation : 50 or 60 dB
Frequency accuracy
: ±
1 ppm or better
Capacity : 150 W or more
Sensitivity : 100 mV or better
Spectrum analyzer Frequency range : At least 400 MHz
RF voltmeter Frequency range : 0.1-100MHz
Spectrum bandwidth : ±100 MHz or more
Measuring range : 0.01-10V
FM deviation meter Frequency range : At least 200 MHz
Digital multimeter Input impedance : 10 MQ/DC or better
Measuring range : Oto±10kHz
Standard signal Frequency range : 0.1-100 MHz
Modulation analyzer
Frequency range : At least 150 MHz
generator (SSG) Output level : 0.1IJV-32 mV
Measuring range
: 0-100%
(-127 to -17 dBm)
External speaker Impedance
: an
Distortion meter Frequency range : 1 kHz±10%
Max. Input power : 5W
Measuring range : 1-100%
Oscilloscope Frequency range : DC-20 MHz
Measuring range : 0.01-10V
.CONNECTION
Attenuator
50 or60 dB
Spectrum
analyzer
Modulation
analyzer
FM deviation
meter
Frequency counter
AC
millivoltmeter
Speaker
RF power meter
200 W/50
n
,------10 0
o
0
to [EXT SP]
to [DC13.8V]
to [MIC]
DC power supply
13.8 V/30 A
• Microphone connector
(Rear panel view)
Pin 5GND
(Microphone
ground)
Pin 6
MIC INPUT
Keyer
to [ELEC KEY]
Standard signal
generator
CAUTION:
IC-706
DO NOT connect the
signal generator while
transmitting.
4 -1