Preparation Before Servicing - Icom IC-24AT Service Manual

6-1
PREPARATION BEFORE
SERVICING
REQUIRED TEST EQUIPMENT
EQUIPMENT GRADE AND RANGE EQUIPMENT GRADE AND RANGE
AC
power
supply Output voltage
Current capacity
13.8
V DC
3
A
or
more
DC
voltmeter
Input
Impedance
50
kn/DC
or better
AC
milli-voltmeter
Measuring range
10mV-10 V
RF power
meter
(terminated type)
Measuring range
Frequency range
Imp^ance
SWR
1~10
W
0.1-500
MHz
son
Less than
1
.2
:
1
External
speaker Impedance
8n
Audio generator Frequency range
300-3000 Hz
1-500
mW
Frequency counter Frequency range
Frequency accuracy
:
Sensitivity
0.1-470
MHz
±1
ppm
or better
100
mV
or better
Output
level
Attenuator Power
attenuation
Capacity
40
or
50
dB
10
Wor
more
Oscilloscope Frequency range
Measuring range
DC-20 MHz
0.01-10
V
Distortion
meter Measuring range 0.1-20
%
FM
deviation
meter Frequency minimum
:
Measuring range
470
MHz
0-±10 kHz
Standard
signal
generator
(SSG)
Frequency range
Output
level
0.1-470
MHz
-127—
17
dBm
(0.1
pV-32 mV)
CONNECTION