Icom IC-M2A, Руководство по обслуживанию

Страница: 13 / 36

5 - 1
5-1 PREPARATION
■
ENTERING THE ADJUSTMENT MODE
• Push and hold the [H/L] key and [PTT] switch, and then turn power ON.
■
OPERATING IN THE ADJUSTMENT MODE
• Change adjustment items: [16] key
• Change adjustment values: [
Y
] and [
Z
] keys
■
EXITING THE ADJUSTMENT MODE
When adjustment is finished, need to do follow operation to cancel the adjustment mode. Otherwise, the transceiver does not
work properly.
• Turn power OFF.
• Push and hold the [H/L] key and [PTT] switch, and then turn power ON.
EQUIPMENT
DC power supply
RF power meter
(terminated type)
Frequency counter
Digital multimeter
GRADE AND RANGE
Output voltage : 7.5 V DC
Current capacity : 3 A or more
Measuring range : 0.1–10 W
Frequency range : 100–300 MHz
Impedance : 50
Ω
SWR : Less than 1.2 : 1
Frequency range : 0.1–300 MHz
Frequency accuracy : ±1 ppm or better
Sensitivity
: 100 mV or better
Input impedance : 10 M
Ω
/DC or better
EQUIPMENT
FM deviation meter
Audio generator
Standard signal
generator (SSG)
Attenuator
GRADE AND RANGE
Frequency range : 30–300 MHz
Measuring range : 0 to ±10 kHz
Frequency range : 300–3000 Hz
Measuring range : 1–500 mV
Frequency range : 100–300 MHz
Output level : 0.1 µV–32 mV
(–127 to –17 dBm)
Power attenuation : 40 dB or more
Capacity : 10 W or more
SECTION 5 ADJUSTMENT PROCEDURES
DC power supply
Top view Bottom view
connect (soldering) line here
+
+
connect (soldering) line here
• DC POWER CABLE CONNECTION