JVC KD-LX555R service manual Pin No

Pin No.	Symbol	I/O	Function
39	MP3 RESET	O	CD MP3 reset signal output terminal
40	MP3 STB	O	CD MP3 standby signal output terminal (H:Standby)
41~43	-	-	-
44	DAC ML	O	DAC mode control latch output terminal
45	DAC MC	O	DAC mode control BCK output terminal
46	DAC MD	O	DAC mode control data output terminal
47	DAC CS	O	DAC chip select output terminal
48~51	-	-	No use
52	DISC SEL	I	8cm disc correspondence mode select terminal (correspondence:L)
53	DAC SEL	I	DAC select mode input terminal
54	-	-	-
55	TEST MODE	I	LCD/AD key/Remocon invalid select mode input terminal L:invalid
56	MP3 SEL	I	MP3 select mode input terminal
57	8V DET	I	CD mechanism power supply detection terminal (L:8V on)
58	REST	I	CD mechanism rest switch input terminal
59	SW2	I	CD mechanism SW2 input terminal
60	RESET	I	Reset signal input terminal
61	SW1	I	CD mechanism SW1 input terminal
62	B.DET	I	Backup power supply detection input terminal (H:Stop mode)
63	P.DET	I	Main power off detection input terminal (H:HALT mode)
64	BUS INT	I	JVC BUS communication start interrupt input terminal
65	MP3 REQ	I	CD MP3 request signal input terminal
66	-	-	-
67	VSS0	-	GND
68	VDD1	-	3.3V
69	X2	O	Oscillator (6MHz)
70	X1	I	Oscillator (6MHz)
71	VPP	-	GND
72	XT2	O	Open
73	XT1	I	GND
74	VDD0	-	3.3V
75	AVDD	-	Connect to ADCONT (Power supply for A/D convertor)
76	IOP	I	Pickup IOP measurement input terminal
77	KEY0	I	Key input 0 (8bit A/D input) terminal
78	KEY1	I	Key input 1 (8bit A/D input) terminal
79	KEY2	I	Key input 2 (8bit A/D input) terminal
80	KET3	I	Key input 3 (8bit A/D input) terminal

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