Kenwood TH-K2AT, K2E, K2ET manual 40

TH-K2AT/K2E/K2ET

ADJUSTMENT

Item	Condition			Measurement				Adjustment		Specifications/
				Test equipment	Unit	Terminal	Unit	Parts	Method		Remarks
	8) LCD display: P13C,			Power meter	TX-RX	ANT		Encoder	Write	0.5W ±0.05W
	Frequency: 145.000MHz			Am meter	(A/3)			[MENU]		0.8A or less
Low power	PTT: ON
	9) LCD display: P13H,							Encoder	Write
	Frequency: 145.995MHz							[MENU]
	PTT: ON
3.Battery	Switch to Adjustment mode
terminal	and carry out the operations
reference	for adjustment item B.
voltage	(Refer to page 28)
Adjust/	TX power: Low
Check	1)LCD display: BAT			DC power supply				[MENU]	Write
	Frequency: 145.000MHz			DVM				LCD	Check	All segments
		(E, E3)								are lighted.
	Frequency: 146.000MHz									■■■■■■■■■
		(K, K2, M, M2)
	PTT: ON
	Battery terminal voltage: 7.5V
	(Adjust the output voltage		from DC power supply until the voltage at the
	battery terminal becomes		7.5V while the transceiver is transmitting.)
	To exit from the Adjustment							LCD	Check	4 to 6 seg-
	Mode, turn the transceiver									ments are
	power OFF and then ON.									lighted.
	2)Frequency: 145.000MHz									■■■■ ~
		(E, E3)								■■■■■■
	Frequency: 146.000MHz
		(K, K2, M, M2)
	PTT: ON
	Battery terminal voltage: 6.4V
	(Adjust the output voltage		from DC power supply until the voltage at the
	battery terminal becomes		6.4V while the transceiver is transmitting.)
4.DCS	Switch to Adjustment mode			Linear detector	TX-RX	ANT
modulation	and carry out the operations			Oscilloscope	(A/3)
balance	for adjustment item L.
	(Refer to page 32)
	Detector: +P, –P
	HPF: OFF	LPF: 3kHz
	De-emphasis: OFF
	TX power: Low
	1)LCD display: DCS.BAL							VR6	By tuning the
	Frequency: 145.000MHz								VR6, adjust
		(E, E3)							the modulation
	Frequency: 146.000MHz								wave until
		(K, K2, M, M2)							if becomes the
	PTT: ON								square wave.
5.MAX DEV	To exit from the Adjustment			Linear detector		ANT		VR5	4.2kHz	±0.1kHz
	Mode, turn the transceiver			AG		MIC			According to the
	power OFF and then ON.			Oscilloscope					larger +, –.
	MIC terminal input
	AG: 1kHz/80mV
	Detector: +P, –P
	HPF: OFF	LPF: 15kHz
	De-emphasis: OFF
	TX power: Low

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