Sony MZ-300 Rmckey, Setkey, Openclssw, Xreset, Holdsw, Hpstby, Vdd, Dspwrqb, Dspce, Pwrsleep, Vpp

MZ-E300

• IC801 RU6615MF-0003 (SYSTEM CONTROL)

Pin No.	Pin name	I/O	Description
1	UNREG_MON	I	UNREG voltage monitor input (A/D input)
2	RF_VCMON	I	Reference voltage (1.2V) for adjusting power supply voltage input (A/D input)
3	RMC_KEY	I	Remote commander with phones key input (A/D input)
4	SET_KEY	I	Key on the set itself input (A/D input) S801-807 (STOP, FF/PB, REW/PB, VOL+, VOL-,
			PLAY MODE, DBB/AVLS key input
5	OPEN_CLS_SW	I	Upper panel open/close detection switch (S808) input L: Close, H: Open
6	RF_SMON	I	S-MON level input from SN761057DBT (IC501) (A/D input)
7	DSP_SMON3_LP	—	Not used (Fixed to L)
8	VL_MON	I	VL voltage monitor input from XPC18A32FCR2 (IC901) (A/D input)
9	XRESET	I	System reset signal input from XPC18A32FCR2 (IC901) (A/D input) L: Reset L is in
			while 500-600 msec after power turns on, and then turns to H.
10	AVDD	—	Power supply (2.48V) (For A/D conversion)
11	AVSS	—	Ground (For A/D conversion)
12, 13	TYPE0, 1	I	Initial setting for the model decision input (Bit 0, 1) Fixed to L.
14	XADJUST	I	Test mode setting input L: Test mode (Fixed to H normally)
15	HOLD_SW	I	HOLD switch (S809) input L: Off, H: On
16	XOUT	O	Main system clock (16.9344MHz) output
17	XIN	I	Main system clock (16.9344MHz) input
18	HP_MUTE	O	Muting on/off control signal output to phones amplifier (IC301) H: Muting on
19	HP_STBY	O	Standby on/off control signal output to phones amplifier (IC301) L: Standby, H: Amp. on
20	XCLK	O	Clock (16.9344MHz) output to LC89642-8B-E (IC601)
21	VDD	—	Power supply (+2.1V) (Digital system)
22	VSS	—	Ground (Digital system)
23	DSP_WRQB	I	SUBQ/ADIP read out request input from LC89642-8B-E (IC601) L: Request
24	DSP_INTB	I	SPP, servo status read out request input from LC89642-8B-E (IC601) L: Request
25	DSP_SMON3	I	Monitor signal 3 input from LC89642-8B-E (IC601)
26	DSP_CE	O	Chip enable output to LC89642-8B-E (IC601) H: Enable
27	PWR_FFCLR	O	Latch clear signal for start up signal to XPC18A32FCR2 (IC901) output H: Clear
28	PWR_SLEEP	O	System sleep control signal to XPC18A32FCR2 (IC901) output H: Sleep on
29	PWR_VLON	O	VL voltage control signal to XPC18A32FCR2 (IC901) output H: VL out on
30	PWR_CLKSEL	O	External sync. 2 division circuit control signal to XPC18A32FCR2 (IC901) output L: 2
			division, H: No division
31	SBUS_CLK	O	SSB serial clock signal output to SN761057DBT (IC501)
32	SBUS_DATA	I/O	SSB serial data signal input/output to SN761057DBT (IC501)
33	PD_S1	O	PD-IC mode select signal output L: PIT, H: GRV
34	SLD_1_MON	I	Sled servo timing signal input from SC111257FCR2 (IC551)
35	SLD_2_MON	I	Sled servo timing signal input from SC111257FCR2 (IC551)
36	CLV_VCON	O	Spindle servo drive voltage control signal output to SC111257FCR2 (IC551)
37	SLD_VCON	O	Sled servo external voltage control signal output to SC111257FCR2 (IC551)
38	VC_VCON	O	PWM signal for VC voltage control signal to XPC18A32FCR2 (IC901) output
39	CLV_U_MON	I	Spindle servo (U) timing signal input from SC111257FCR2 (IC551)
40	VDD	—	Power supply (+2.1V) (Digital system)
41	VPP	—	Test (Fixed to L)
42	CLV_V_MON	I	Spindle servo (V) timing signal input from SC111257FCR2 (IC551)
43	CLV_W_MON	I	Spindle servo (W) timing signal input from SC111257FCR2 (IC551)
44	CLV_U_CON	O	Spindle servo (U) drive signal output to SC111257FCR2 (IC551)
45	CLV_V_CON	O	Spindle servo (V) drive signal output to SC111257FCR2 (IC551)

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