Icom IC-4008MKII Section Adjustment Procedures, Preparation, Required Test Equipment, Connections

	SECTION 5		ADJUSTMENT PROCEDURES
5-1 PREPARATION
	REQUIRED TEST EQUIPMENT
	EQUIPMENT	GRADE AND RANGE			EQUIPMENT	GRADE AND RANGE
DC power supply		Output voltage		: 4.5 V DC	Audio generator	Frequency range	: 300–3000 Hz
		Current capacity		: 1 A or more		Measuring range	: 1–500 mV
		Measuring range		: 1 mW–1 W	Standard signal	Frequency range	: 0.1–600 MHz
RF power meter		Frequency range		: 300–600 MHz		Output level	: 0.1 µV–32 mV
					generator (SSG)
(terminated type)		Impedance		: 50 Ω			(–127 to –17 dBm)
		SWR		: Less than 1.2 : 1
					Oscilloscope	Frequency range	: DC–20 MHz
		Frequency range		: 0.1–600 MHz		Measuring range	: 0.01–10 V
Frequency counter		Frequency accuracy : ±1 ppm or better
					AC millivoltmeter	Measuring range	: 10 mV–10 V
		Sensitivity		: 100 mV or better
						Input impedance	: 8 Ω
FM deviation meter		Frequency range		: 30–600 MHz	External speaker
						Capacity	: 300 mW or more
		Measuring range		: 0 to ±10 kHz
					Attenuator	Power attenuation	: 30 or 40 dB
DC voltmeter		Input impedance		: 50 kΩ /V DC or better
						Capacity	: 1 W or more

ENTERING THE ADJUSTMENT MODE

Turn the transceiver power OFF.

While connecting the “TEST” on the RF board to “GND”, then turn power ON. (See location at page 5-3)

CONNECTIONS

CAUTION:

DO NOT transmit while SSG is connected to the antenna connector.

Standard signal

generator

–17 to –125 dBm (32 mV to 0.1 ∝V)

FM deviation meter

DC power supply	–
4.5 V /1.0 A	+

Attenuator

30 dB or 40 dB

RF power meter

50 Ω / 1–500 mW

Frequency

counter

to the RF test port J1

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