Sony XR-M510 service manual PE0 PE1

XR-M510

•MAIN BOARD IC607 HD6432355A26F (LIQUID CRYSTAL DISPLAY DRIVE CONTROLLER)

Pin No.	Pin Name	I/O	Description
1, 2	PG3, PG4	O	Not used (open)
3	VSS	—	Ground terminal
4	NC	—	Not used (open)
5	VCC	—	Power supply terminal (+5V)
6 to 9	PC0 to PC3	O	Not used (open)
10	VSS	—	Ground terminal
11 to 14	PC4 to PC7	O	Not used (open)
15 to 18	PB0 to PB3	O	Not used (open)
19	VSS	—	Ground terminal
20 to 23	PB4 to PB7	O	Not used (open)
24 to 27	PA0 to PA3	O	Not used (open)
28	VSS	—	Ground terminal
29 to 32	PA4/IRQ4 to	O	Not used (open)
	PA7/IRQ7
33	SP-LAT	I	Serial data latch pulse input for spectrum display from the system controller (IC601)
			“H” active
34	P66/IRQ2	O	Not used (open)
35, 36	VSS	—	Ground terminal
37	P65/IRQ1	O	Not used (open)
38	BUS-ON	I	Bus on/off control signal output from the system controller (IC601)
			“L”: bus on
39	VCC	—	Power supply terminal (+5V)
40	PE0	O
41	PE1	O
			Output select control signal output to the BA3834F (IC102)	*1
42	PE2	O
43	PE3	O
44	VSS	—	Ground terminal
45	DSP SEL	I	Spectrum analyzer display data select signal input from the BA3834F (IC102)
46, 47	LED SW1,	I	Security/operation side select control signal input from the system controller (IC601)
	LED SW2		“H” active
48	PE7	O	Not used (open)
49	BU-IN	I	Battery detect signal input from the SONY bus interface (IC501) and battery detect circuit
			“L” is input at low voltage
50	LINK-OFF	O	Link on/off control signal output for the SONY bus “L”: link on, “H”: link off
51	PD2	O	Not used (open)
52	ILL-ON	O	Power on/off control signal output of the illumination LED	“H”: power on

*1 Output select logic table

		IC102 (pin qj )		GND	GND	68Hz	170Hz	420Hz	1kHz	2.4kHz	5.9kHz	14.4kHz
Terminal			AOUT
	PE0 (pin r; )			⋅	0	0	0	0	1	1	1	1
	PE1 (pin ra )			⋅	0	0	1	1	0	0	1	1
	PE2 (pin rs )			⋅	0	1	0	1	0	1	0	1
	PE3 (pin rd )			0	1	1	1	1	1	1	1	1
“⋅” is don't care

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