JVC KD-LX555R service manual Terminal layout

•	Terminal layout
	AC CONT1	GND1 OUTFR- STBY OUTFR+ Vcc1/2 OUTRR- GND2 OUTRR+	VREF INRR INFR SGND INFL INRL ONTIME OUTRL+ GND3 OUTRL- Vcc3/4 OUTFL+ MUTE OUTFL- GND4 NC
•	Pin function
Pin No.		Symbol	Function
	1	AC CONT1	Header of IC
	2	GND1	Power GND
	3	OUTFR-	Outpur(-) for front Rch
	4	STBY	Stand by input
	5	OUTFR+	Output (+) for front Rch
	6	Vcc1/2	Power input
	7	OUTRR-	Output (-) for rear Rch
	8	GND2	Power GND
	9	OUTRR+	Output (+) for rear Rch
	10	VREF	Ripple filter
	11	INRR	Rear Rch input
	12	INFR	Front Rch input
	13	SGND	Signal GND
	14	INFL	Front Lch input
	15	INRL	Rear Lch input
	16	ONTIME	Power on time control
	17	OUTRL+	Output (+) for rear Lch
	18	GND3	Power GND
	19	OUTRL-	Output (-) for rear Lch
	20	Vcc3/4	Power input
	21	OUTFL+	Output (+) for front
	22	MUTE	Muting control input
	23	OUTFL-	Output (-) for front
	24	GND4	Power GND
	25	NC	No connection

(No.49793)1-39