Sony Ericsson CDX-M620 service manual IC5 CXP84640-072Q CD System Control Servo Board

CDX-M620/M670

• IC5 CXP84640-072Q (CD SYSTEM CONTROL) (SERVO BOARD)

Pin No.	Pin Name					I/O	Pin Description
1				ITRPT		—	Not used in this set.
2, 3					—	—	Not used in this set.
4, 5					NCO	—	Not used in this set.
6				OPEN		I	Front panel open detection input
7				CLOSE		O	Front panel close control output
8	LINKOFF					I	Bus interface link input
9					NCO	—	Not used in this set.
10						I	Down switch input (SW1)
					D SW
11					SSTP	I	Limit switch input (SW4)
12, 13					NCO	—	Not used in this set.
14, 15					—	—	Not used in this set.
16		EMPH O				O	De-emphasis ON/OFF control output
17		CDMON				O	CD mechanism deck power control output
18				CD ON		O	CD power control output
19				A MUT		O	System attenuate control output
20						O	Laser power ON/OFF control output
				LD ON
21						O	CD system reset output
			CD RST
22				HOLD		O	Hold switch output
23	AGC CONT					O	AGC control output
24					—	—	Not used in this set.
25					PH3	I	Not used in this set.
26						I	Not used in this set.
			TSTIN0
27						I	Not used in this set.
				TSTIN1
28						I	Not used in this set.
		TST.CLV
29					NCO	—	Not used in this set.
30						I	System reset input (“L”=Reset)
				RESET
31					X IN	I	X’tal oscillator input from system clock. (10 MHz)
32						O	X’tal oscillator output for system clock. (10 MHz)
				X OUT
33					GND	—	Analog ground
34						O	Not used in this set.
			XT OUT
35				XT IN		I	Not used in this set.
36					AVSS	—	A/D converter ground
37				AVREF		I	A/D converter reference voltage input
38					TEP L	I	Not used in this set.
39				TEP H		I	Not used in this set.
40				SLED–		I	Sled drive input
41					PH2	I	Not used in this set.
42	SEK/SMET					I	Fixed at “H” in this set.
43	GFS/MNT2 SEL					I	Fixed at “H” in this set.
44	SC-JIG ON/OFF					I	Fixed at “H” in this set.
45					SCLK	O	CD-TEXT data read clock output
46				LOCK		I/O	Lock signal input/output
47					—	—	Not used in this set.
48					SCK2	O	Sub Q read clock output
49					SI2	I	Sub Q 80 bit, PCM peak and level data 16 bit input.
50					—	—	Not used in this set.
51	BUS CLK					I/O	Bus system serial clock input/output
52				BUS SI		I	Bus system serial interface input
53			BUS SO			O	Bus system serial interface output
54					F OK	I	Focus OK signal input
55					GFS	I	GFS signal detection input
56	TEST MODE					I	Fixed at “H” in this set.

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