JVC KD-SH99R service manual 1-28

KD-SH99R

UPD70F3033AC015(2/2)

Pin No.	Symbol	I/O	Function
51	AD4	I/O	DECODER I/O data bus.
52	AD5	I/O	DECODER I/O data bus.
53	AD6	I/O	DECODER I/O data bus.
54	AD7	I/O	DECODER I/O data bus.
55	BVDD	-	5V
56	BVSS	-	GND
57	---	O	(Non connected)
58	---	O	(Non connected)
59	---	O	(Non connected)
60	---	O	(Non connected)
61	---	O	(Non connected)
62	---	O	(Non connected)
63	---	O	(Non connected)
64	---	O	(Non connected)
65	MD	O	DAC mode control data.
66	MC	O	DAV mode control clock.
67	ML	O	DAC mode control latch.
68	MP3SEL	O	MP3/CD-DA switch SW L:Cd H:MP3
69	PREQ	O	Mechanism power supply ON/OFF demand output(L:ON demand)
70	AMUTE	O	Audio output MUTE control signal output(L:MUTE ON)
71	AVDD	-	5V(Power supply for AD converter)
72	AVSS	-	GND(GND for AD converter)
73	AVREF	-	5V(Standard voltage for AD converter)
74	PDET	I	BACKUP power supply detection(L:BACKUP power supply ON)
75	SW2	I	SW2 mechanism switch.
76	SW3	I	SW3 mechanism switch.
77	SW4	I	SW4 mechanism switch.
78	REST	I	Surroundings position detection switch(L:Surroundings)
79	RFOK	I	RFOK signal input.
80	REQ	I/O	Data demand.
81	EXP	I	H:Export L:For country 8cm CD.
82	ADIN0	I	Test key input 0 (A/D input)
83	ADIN1	I	Test key input (A/D input of one)
84	ADIN2	I	Test key input (A/D input of two)
85	ADIN3	I	Test key input (A/D input of three)
86	---	O	(Non connected)
87	CONT+B	I	LSI5V ON power supply control signal and JBUS control signal input.
88	SW1	I	SW1 mechanism switch.
89	PACK	I	PACK synchronous signal of CD-TEXT.
90	INT0	I	DECODER interrupt request.
91	INT1	I	DECODER interrupt request.
92	JBINT	I	J-BUS interrupt signal input.
93	TESTMODE	I	L: test mode shift.
94	12CD	I/O	12C data line.
95	---	O	(Non connected)
96	12CC	I/O	12C clock line.
97	RXDO	I	FLASH writing cereal data input.
98	SID	O	MP3 cereal data output and FLASH writing cereal data output.
99	SIC	O	MP3 cereal clock output and FLASH writing cereal clock output.
100	TSO	I	CD-TEXT data serial input.

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