Adjustment Procedures; Preparation Before Servicing; Required Test Equipment - Icom IC-W2A 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
:
12.5
V DC
13.5
V
DC
(Only adjusting output
power)
Current capacity
:
3
A
or
more
Standard
signal
generator
(SSG)
Frequency range
:
0.1— 470
MHz
Output
level
:
-127
—
17
dBm
(0.1
pV~32
mV)
DC
voltmeter Input
impedance
:
50 kO/V
DC
or better
RF power
meter
(terminated type)
Measuring range
:
1—10W
Frequency range
:
0.1-500
MHz
Input
impedance
:
500
SWR
:
1
.2
:
1
or better
Audio generator
(AG)
Frequency range
:
300—3000 Hz
Measuring range
:
1-500
mW
Attenuator
Attenuation
;
40
dB
or
more
Capacity
:
1
0
W
or
more
Frequency
counter
Frequency range
:
0.1— 470
MHz
Frequency accuracy
;
±1
ppm
or better
Sensitivity
:
1
00
mV
or better
FM
deviation
meter
Frequency
minimum
:
470
MHz
Measuring range
:
0-±10kHz
Oscilloscope
Frequency range
:
DC—
20
MHz
Output range
:
0.01—
10
V
CW:
Clockwise
CCW:
Counterclockwise
CONNECTION
aan
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IC-W2A
IC-W2E
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4—1