Preparation - Icom IC-M304 Service Manual

SECTION 5

5-1 PREPARATION

¤ REQUIRED TEST EQUIPMENTS
EQUIPMENT
Output voltage
DC power supply
Current capacity
Measuring range
Frequency range
RF power meter
(terminated type)
Impedance
SWR
Frequency range
Frequency counter Frequency accuracy : ±1 ppm or better
Sensitivity
Frequency range
FM deviation meter
Measuring range
Frequency range
Audio generator
Output level
¤ CONNECTIONS
Standard signal generator
0.1 µV to 32 mV
(–127 dBm to –17 dBm)
FM
deviation meter
ADJUSTMENT PROCEDURE
GRADE AND RANGE
: 13.8 V DC
: More than 10 A
: 0.1–30 W
: 100–300 MHz
: 50 Ω
: Less than 1.2 : 1
: 0.1–300 MHz
: 100 mV or better
: 30–300 MHz
: 0 to ±10 kHz
: 300–3000 Hz
: 1–500 mV
RF power meter
0.1–30 W/50
Frequency
counter
Attenuator
40 dB
EQUIPMENT
DC voltmeter
Standard signal
generator (SSG)
AC millivoltmeter
External speaker
Attenuator
CAUTION!
DO NOT transmit while
the SSG is connected to
the antenna connector
Blue: Speaker (+)
Gray: Speaker (−)
Red: Positive (+)
Black: Negative (−)
IC-M304
5 - 1
GRADE AND RANGE
Input impedance : 50 kΩ /V DC or more
Frequency range : 0.1–300 MHz
: 0.1 µV to 32 mV
Output level
(–127 to –17 dBm)
Measuring range : 10 mV to 10 V
Input impedance : 4 Ω
Capacity : More than 5 W
Power attenuation : 40 dB
Capacity : More than 30 W
SINAD meter
+
Speaker (4 Ω)
−
+
Power supply
13.8 V/10 A
−