JVC KS-FX725R Description of major ICs, UPD178018AGC584IC701 System controller micon

KS-FX725R

Description of major ICs

UPD178018AGC584(IC701) : System controller micon

1.Terminal Layout
		24 – 1		80
25
	–			–
40				65
		41 –	64
2.Description
	Pin	Symbol	I/O	Function	Pin	Symbol	I/O	Function
	No.				No.
	1	KEY0	I	Key input 0	43	DOLBY	O	Dolby NR output H:Dolby NR ON
	2	KEY1	I	Key input 1	44	MS IN	I	Between tunes signal input
	3	KEY2	I	Key input 2				H:Between tunes
	4	LEVEL	I	Level meter input	45	I2CSCK	I/O	E-VOL IC control clock I/O
	5	SM	I	Signal meter input	46	I2CDAO	O	E-VOL IC control data output
	6	SQ	I	Signal quality input	47	I2CDAI	I	E-VOL IC control data input
	7	LCDCE	O	Chip enable output to LCD driver	48	REEL	I	Reel rotation detect signal input
	8	LCDDA	O	Data output to LCD driver	49	SUBMO-	O	Sub motor output -
	9	LCDSCK	O	Clock output to LCD driver	50	SUBMO+	O	Sub motor output +
	10	BUSI/O	O	J-BUS I/O switch output	51	MODE	I	Mode position detection input H:Non-mode
	11	UNLOCK	O	PLL unlock output L:unlock H:lock				L:Mode position
	12	BUSSI	I	J-BUS data input	52	TAPEIN	I	Cassette in detect input H:IN L:OUT
	13	BUSSO	O	J-BUS data output	53	STBY	I	Standby detect input H:Eject side
	14	BUSSCK	O	J-BUS clock output				L:Operation side
	15 - 20	NC	-	Non connect	53	T-END	I	Tape end detect input 200ms L:tape end
	21	GNDPORT	-	GND for port	54-59	NC	-	Non connect
	22	VDDPORT	-	VDD for port	60	MUTE	O	L:Mute ON H:Mute OFF
	23	NC	-	Non connect	61	POWER	O	Power supply output H:power ON
	24	AFCK	O	AF check output L:AF check	62	TEL-MUTE	I	TEL-MUTE input
	25	MONO	O	Monaural ON/OFF output H:Monaural ON	63, 64	NC	-	Non connect
	26	FM/AM	O	Output for FM power supply H:FM Mode	65	ENC1	I	Encoder signal input
	27	SEEK/STOP	O	Auto seek/Stop output H:Aut seek L:Stop	66	ENC2	I	Encoder signal input
	28	NC	I	Non connect	67	ON	I	H:Operation mode L:Power save mode
	29	IFC	I	FM middle frequency counter input	68	STOP	I	Stop mode input
	30	VDDPLL	-	VDD for PLL	69	RDSCK	I	RDS clock input
	31	OSC	I	FM/AM oscillation input	70	RDSDA	I	RDS data input
	32	NC	-	Non connect	71	REMOCON	I	Remocon signal input (Not used)
	33	GNDPLL	-	GND for PLL	72	DETACH	I	Detach input It is "L" of 200ms or more and
	34	EO0	O	Error out output from change pump				an operation mode H:power save mode
	35	EO1	O	Error out output from change pump	73	JBUS INT	I	J-BUS Interruption input
	36	IC	-	Connect to Ground	74	REGCPU	-	Connects GND through the capacitor
								of 0.1 F
	37	SD/ST	I	Seek/Stop port H:SD input
				Seek/Stop port L:Stereo input	75	GND	-	To ground
	38	STAGE	I	H:It is CD mode and there is REPEAT	76	X2	-	Crystal oscillator connection for system
				L:Does not exist	77	X1	-	clock oscillation
	39	NC	-	Non connect	78	REGOSC	-	Connects GND through the capacitor
	40	MOTOR	O	Main motor output H:At rotation				of 0.1 F
	41	FF/REW	O	MS IC sensitivity switch output L:FF/REW	79	VDD	-	Power supply
	42	F/R	O	FWD/REV change input H:FWD L:REV	80	NC	-	Non connect

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