Kenwood TK-270G, TK-260G service manual Ptton Dtmf

TK-260G/270G

ADJUSTMENT

	Item		Condition	Measurement		Adjustment		Specifications/
				Test equipment	Terminal	Parts	Method	Remark
14.DQT		1)	Adj item [FDQT]	Power meter	ANT	Encoder	Wide:0.75kHz MAX
	Devition		Adjust [∗∗∗]	Dev meter	SP/MIC connector	knob	Narrow:0.4kHz MAX
	Adjust		LPF:3kHz	Oscilloscope
			HPF:OFF
	[Wide]	2)	Adj item
			[F.D Q T] ➞ [F.D.Q.T] ➞	[F.D.Q.T. .]
			Adjust [∗∗∗]
			PTT:ON
	[Narrow]	3)	Adj item [FDQT.]
			Adjust [∗∗∗]
			PTT:ON
15.DTMF		1)	Adj item [DTMF]				Wide:2.5kHz	±0.1kHz
	Deviation		Adjust [∗∗∗]				Narrow:1.25kHz
	Adjust		LPF:15kHz
	[Wide]		HPF:OFF
			PTT:ON
	[Narrow]	2)	Adj item [DTMF .]
			Adjust [∗∗∗]
			PTT:ON
16.TONE		1)	Adj item [TONE]				Wide:3.0kHz	±0.1kHz
	Deviation		Adjust [∗∗∗]				Narrow:1.5kHz
	Adjust		LPF:15kHz
	[Wide]		HPF:OFF
			PTT:ON
	[Narrow]	2)	Adj item [TONE .]
			Adjust [∗∗∗]
			PTT:ON
17.BATT		1)	Adj item [BATT]	Power meter	ANT	Encoder	After pressing the	BATT terminal
	Detection		Adjust [∗∗∗]	DVM	BATT	knob	PTT switch, confirm	voltage:5.9V
	Writing		PTT:ON		terminal		that one predeter-
							mined numeric in the
							range of 1 to 256
							appears, then press
							the [2] key. That
							number will be
							stored in memory.
18.BATT		[Panel Test Mode]					Check	No blinking of LED
	Detection	1)	CH-Sig:1-1
	Check		BATT terminal voltage:6.5V
			PTT:ON
		2)	BATT terminal voltage:5.7V					Blinking of LED
			PTT:ON

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