JVC KD-LX555R service manual 4.15TA2157FN-XIC1601 RF amp

4.15TA2157FN-X (IC1601):RF amp

• Terminal layout

	24	~	13
	1	~	12
•	Block diagram
		13	20k	20k	PEAK						12
							50k		15k
		14									11
						40k				10pF
					20k
		15	10pF	15k	20k		20k				10
						40k
		16	20k	50 A							9
				12k			2k	50k
		17			1.3V						8
				12k
			20k
		18	BOTTOM							1k	7
			40k	PEAK				14k		2k
		19								1.75k	6
						240k
						15pF			x0.5
		20						K			5
						240k			x2
				20k
						15pF
									x0.5
		21						1			4
			30k						x2
					180k	40pF			94k
		22					60k		22k		3
					180k	60k		94k
		23	3k		40pF				22k		2
		24	3k								1

PIN	SEL	TEB	RFGC	TEB
VCTRLPIN	(APC SW)	(TE BAL)	(AGC Gian)	(TE BAL)
VCC	APC ON	-50%	+12dB	Normal mode
				(0dB)
HiZ	APC ON	0%	+6dB	Normal mode
				(0dB)
GND	APC OFF	50%	0dB	CD-RW mode
	(LDO=H)			(+12dB)

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