Technicolor - Thomson CDP-CX57 service manual Pin No, Pin Name, Function

Pin No.	Pin Name	I/O	Function
49	SQOUT	I	Subcode Q data input from the DSP (IC102)
50	COIN	O	Command serial data output to the RF amplifier (IC101) and DSP (IC102)
51	SCLK	O	Serial data transfer clock signal output to the CD text decoder (IC104)		“L” active
52	SRDT	I	Serial data input from the CD text decoder (IC104)
53	NC	O	Not used (open)
54	DRF	I	Focus OK signal input from the RF amplifier (IC101) and DSP (IC102)			“L”: NG, “H”: OK
55	WRQ	I	Subcode Q synchronizing signal input from the DSP (IC102) “H” active
56	RMIN	I	Remote control signal input from the remote control receiver (IC902)		“L” active
57	TGL	I	Tracking gain control signal input from the DSP (IC102)
			Gain becomes low when tracking gain is “H”
58	RWC	O	Command latch output to the RF amplifier (IC101) and DSP (IC102)		“L” active
59	SL–	O	Sled feeding signal (internal direction) output to the RF amplifier (IC101)			“H” active
60	DQSY	I	Serial data synchronizing signal input from the CD text decoder (IC104)			“L” active
61	XMODE	O	Reset signal output to the CD text decoder (IC104)	“H”: reset
62	T.SENS1	I	Disc table flag detect sensor (IC51) input terminal
63	T.SENS2	I	Disc table flag detect sensor (IC52) input terminal
64	T.SENS3	I	Disc table home position detect sensor (IC53) input terminal
65	DOWNSW	I	Inputs the loading out switch (S52) detection signal	“L” active
66	UPSW	I	Inputs the loading in switch (S51) detection signal	“L” active
67	SELECT	I	Not used (fixed at “H”)
68 to 71	D3 to D6	I/O	Two-way data bus with the static RAM (IC502)
72	VDD	—	Power supply terminal (+5V)
73	NC (VDD)	—	Not used (connected to power supply (+5V) line)
74	D7	I/O	Two-way data bus with the static RAM (IC502)
75 to 77	D0 to D2	I/O	Two-way data bus with the static RAM (IC502)
78 to 80	A0 to A2	O	Address signal output to the static RAM (IC502)

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