Adjustment Procedures; Preparation - Icom iC-M501EURO Service Manual

SECTION 5 ADJUSTMENT PROCEDURES

5-1 PREPARATION

REQUIRED TEST EQUIPMENT
EQUIPMENT
Output voltage
DC power supply
Current capacity
Measuring range
RF power meter Frequency range
(terminated type) Impedance
SWR
Frequency range
Frequency counter Frequency accuracy : ±1 ppm or better
Sensitivity
Frequency range
FM deviation meter
Measuring range
DC voltmeter Input impedance
' ' CONNECTIONS
Standard signal
generator
–17 to –125 dBm
(32 mV to 0.13 µV)
RF power meter
50 Ω / 1–50 W
FM deviation
meter
Attenuator
40 dB or 50 dB
to the antenna connector
GRADE AND RANGE
: 13.8 V DC
: 10 A or more
: 1–50 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
: 50 kΩ/V DC or better
Frequency
counter
iM501EURO
EQUIPMENT
Audio generator
Standard signal
generator (SSG)
Oscilloscope
AC millivoltmeter
External speaker
Attenuator
CAUTION:
DO NOT transmit while SSG is
connected to the antenna connector.
to DC cable
Black
5 - 1
GRADE AND RANGE
Frequency range : 300–3000 Hz
Measuring range : 1–500 mV
Frequency range : 0.1–300 MHz
Output level : 0.1 µV–32 mV
(–127 to –17 dBm)
Frequency range : DC–20 MHz
Measuring range : 0.01–20 V
Measuring range : 10 mV–10 V
: 4 Ω
Input impedance
Capacity : 5 W or more
Power attenuation : 50 or 60 dB
Capacity : 50 W or more
To external speaker
–
DC power supply
+
13.8 V /15 A
Red