Sony CDX-GT210, CDX-GT260 CDX-GT21W/GT210/GT260/GT260S, Ic Pin Descriptions, Pin No, Pin Name

CDX-GT21W/GT210/GT260/GT260S

•IC PIN DESCRIPTIONS

•IC501 MB90F045PF-G-9014-SPE1 (SYSTEM CONTROL) (MAIN BOARD (3/3))

Pin No.		Pin Name		I/O		Pin Description
1	AREASEL0			I	Destination setting pin
2	AREASEL1			I	Destination setting pin
3	AREASEL2			I	Frequency select signal input
4	B-OUT SEL			I	Blackout existence distinction signal input (L: blackout none, H: blackout)
5			BEEP	O	BEEP signal output
6	CYRIL_SEL			I	Distinction pin for Cyril word. (L: not for the Kiril word, H: for the Kiril word)
7				I	Front panel detaching detection signal input (L: Panel on, H: Panel off)
		NOSE_SW
8			DIAG	I	Status signal input from power amplifier.
9				O	Electronic volume attenuate control signal output.
			VOLATT
10			NCO	O	Not used. (Open)
11			VSS	—	Ground
12			TUATT	O	Tuner mute control signal output
13		NSMASK		O	Noise mask signal output	Not used in this set. (Open)
14	ILLUMI_SEL1			I	Illumination voltage setting pin
15	ILLUMI_SEL2			I	Illumination voltage setting pin
16, 17			NCO	O	Not used. (Open)
18 to 20			NCO	O	Not used. (Open)
21, 22			NCO	O	Not used. (Open)
23			VCC5	—	Power supply (+3.3V)
24		EEP_SIO		I/O	EEPROM bus serial data input/output
25		EEP_CKO		O	EEPROM bus serial clock output
26		AMPSTB		O	Power AMP standby signal output
27		LCD_CE		O	LCD driver chip enable signal output
28		LCD_SO		O	LCD driver serial data signal output
29		LCD_SCK		O	LCD driver serial clock signal output
30		RDS ON		O	RDS ON signal output	Not used in this set. (Open)
31			RE-IN0	I	Rotary encoder signal input 0
32			RE-IN1	I	Rotary encoder signal input 1
33		I2C_CKO		O	I2C bus serial clock signal output
34		I2C_SIO		I/O	I2C bus serial data signal input/output
35			DAVDD	—	A/D converter power supply (+3.3V)
36			AVRH	—	A/D converter external reference power supply (+3.3V)
37			DAVSS	—	A/D converter Ground
38		QUALITY		I	Noise detect signal input
39			VSM	I	S-meter voltage detect signal input
40			KEYIN1	I	Key signal input 1
41			KEYIN0	I	Key signal input 0
42			VSS	—	Ground
43			RC_IN0	I	Rotary commander key signal input Not used in this set. (Pull up)
44 to 48			NCO	O	Not used. (Open)
49			MD0	I	Operation mode setting pin (Pull up)
50			MD1	I	Operation mode setting pin (Pull up)
51			MD2	I	Operation mode setting pin (Pull down)
52		KEYACK		I	Key acknowledgment detect signal input
53		TU_ATTIN		I	Tuner mute zero cross detect signal input Not used in this set. (Pull down)
54			BUIN	I	Back-up power supply detect signal input
55			NCO	O	Not used. (Open)
56			DAVN	I	RDS data block synchronized detect signal input Not used in this set. (Pull down)

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