Panasonic KX-TC1205RUW, KX-TC1205RUB, KX-TC1205RUS manual How to change the channel, Adjustment

KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF

8.2.How to change the channel

*: Refer to Flow Solder Side View (P.66).

8.3.Adjustment

	Adjustment Items	Test Mode	Adjustment	*Procedure	Check or
			Point		Replace
					Parts
(A) RX VCO		3ch Talk	-	∙ Confirm so that the reading of the Digital Voltmeter is 1.5V ± 0.5V.	IC1, L10,
	Confirmation				C26
(B) TX VCO		3ch Talk	T6	∙ Adjust T6 so that the reading of the Digital Voltmeter is 2.0V ± 0.1V.	IC1, DV1,
	Adjustment				T6
(C) TX Frequency		3ch Talk	VC1	∙ Adjust VC1 so that the reading of the frequency counter is 30.175MHz ±	IC1, X1,
	Adjustment			0.1KHz.	T6,
					DV1, C35,
					C40, VC1
(D) TX Power		3ch Talk	T5	∙ Adjust T5 so that the reading of the RF VTVM is over 10dBm.	IC1, Q3,
	Adjustment				Q4, Q5,
					T5, DPX1
(E)	RX Sensitivity	3ch Talk	T2	1. Apply -60dBm output from S.S.G. (modulation frequency 1KHz, dev.	DPX1, T2,
	Adjustment (2nd			0KHz).	CF1, CF2
	IF output)			2. Adjust T2 so that the reading of RF VTVM is the maximum value (more
				than 20mV)
(F)	Line Output Level	3ch Talk	-	1. Apply -60dBm output from S.S.G. (modulation frequency 1KHz, dev.	IC1, Q11
	Confirmation			3KHz).
				2. Confirm that the reading of AF VTVM is 80mV ± 20mV (600Ω load).
(G)	Line Input	3ch Talk	-	1. Input via loop simulator 1.0KHz, 80mV (measured at T-R) signal.	IC1, DV1
	Modulation			2. Apply -60dBm output from S.S.G. (modulation frequency 1KHz, dev.
	Confirmation
				0KHz).
				3. Confirm so that the reading of FM Deviation Meter is 2.8KHz ± 0.3KHz.
(H) Noise Squelch		3ch Talk	-	1. Measure the SSG output level when the noise squelch changes from Low	IC1, DPX1
	Confirmation			to High.

2.Confirm so that the SSG output level is -105dBm ~ -110dBm.

*: The connection of adjustment equipment are as shown in Adjustment Standard (Base Unit) (P.25). SSG Frequency: 39.875 MHz

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